Mercurial > hg > truffle
annotate src/cpu/x86/vm/stubGenerator_x86_64.cpp @ 11693:693b06f5d8a6
Directly lower checkcast nodes introduced when lowering store indexed instructions.
| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Wed, 18 Sep 2013 00:10:08 +0200 |
| parents | abba25b953a2 |
| children | 58fc8e2b7b6d |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
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27 #include "asm/macroAssembler.inline.hpp" |
| 1972 | 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" | |
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40 #include "runtime/thread.inline.hpp" |
| 1972 | 41 #include "utilities/top.hpp" |
| 42 #ifdef COMPILER2 | |
| 43 #include "opto/runtime.hpp" | |
| 44 #endif | |
| 0 | 45 |
| 46 // Declaration and definition of StubGenerator (no .hpp file). | |
| 47 // For a more detailed description of the stub routine structure | |
| 48 // see the comment in stubRoutines.hpp | |
| 49 | |
| 50 #define __ _masm-> | |
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51 #define TIMES_OOP (UseCompressedOops ? Address::times_4 : Address::times_8) |
| 304 | 52 #define a__ ((Assembler*)_masm)-> |
| 0 | 53 |
| 54 #ifdef PRODUCT | |
| 55 #define BLOCK_COMMENT(str) /* nothing */ | |
| 56 #else | |
| 57 #define BLOCK_COMMENT(str) __ block_comment(str) | |
| 58 #endif | |
| 59 | |
| 60 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") | |
| 61 const int MXCSR_MASK = 0xFFC0; // Mask out any pending exceptions | |
| 62 | |
| 63 // Stub Code definitions | |
| 64 | |
| 65 static address handle_unsafe_access() { | |
| 66 JavaThread* thread = JavaThread::current(); | |
| 67 address pc = thread->saved_exception_pc(); | |
| 68 // pc is the instruction which we must emulate | |
| 69 // doing a no-op is fine: return garbage from the load | |
| 70 // therefore, compute npc | |
| 71 address npc = Assembler::locate_next_instruction(pc); | |
| 72 | |
| 73 // request an async exception | |
| 74 thread->set_pending_unsafe_access_error(); | |
| 75 | |
| 76 // return address of next instruction to execute | |
| 77 return npc; | |
| 78 } | |
| 79 | |
| 80 class StubGenerator: public StubCodeGenerator { | |
| 81 private: | |
| 82 | |
| 83 #ifdef PRODUCT | |
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84 #define inc_counter_np(counter) ((void)0) |
| 0 | 85 #else |
| 86 void inc_counter_np_(int& counter) { | |
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87 // This can destroy rscratch1 if counter is far from the code cache |
| 0 | 88 __ incrementl(ExternalAddress((address)&counter)); |
| 89 } | |
| 90 #define inc_counter_np(counter) \ | |
| 91 BLOCK_COMMENT("inc_counter " #counter); \ | |
| 92 inc_counter_np_(counter); | |
| 93 #endif | |
| 94 | |
| 95 // Call stubs are used to call Java from C | |
| 96 // | |
| 97 // Linux Arguments: | |
| 98 // c_rarg0: call wrapper address address | |
| 99 // c_rarg1: result address | |
| 100 // c_rarg2: result type BasicType | |
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101 // c_rarg3: method Method* |
| 0 | 102 // c_rarg4: (interpreter) entry point address |
| 103 // c_rarg5: parameters intptr_t* | |
| 104 // 16(rbp): parameter size (in words) int | |
| 105 // 24(rbp): thread Thread* | |
| 106 // | |
| 107 // [ return_from_Java ] <--- rsp | |
| 108 // [ argument word n ] | |
| 109 // ... | |
| 110 // -12 [ argument word 1 ] | |
| 111 // -11 [ saved r15 ] <--- rsp_after_call | |
| 112 // -10 [ saved r14 ] | |
| 113 // -9 [ saved r13 ] | |
| 114 // -8 [ saved r12 ] | |
| 115 // -7 [ saved rbx ] | |
| 116 // -6 [ call wrapper ] | |
| 117 // -5 [ result ] | |
| 118 // -4 [ result type ] | |
| 119 // -3 [ method ] | |
| 120 // -2 [ entry point ] | |
| 121 // -1 [ parameters ] | |
| 122 // 0 [ saved rbp ] <--- rbp | |
| 123 // 1 [ return address ] | |
| 124 // 2 [ parameter size ] | |
| 125 // 3 [ thread ] | |
| 126 // | |
| 127 // Windows Arguments: | |
| 128 // c_rarg0: call wrapper address address | |
| 129 // c_rarg1: result address | |
| 130 // c_rarg2: result type BasicType | |
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131 // c_rarg3: method Method* |
| 0 | 132 // 48(rbp): (interpreter) entry point address |
| 133 // 56(rbp): parameters intptr_t* | |
| 134 // 64(rbp): parameter size (in words) int | |
| 135 // 72(rbp): thread Thread* | |
| 136 // | |
| 137 // [ return_from_Java ] <--- rsp | |
| 138 // [ argument word n ] | |
| 139 // ... | |
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140 // -28 [ argument word 1 ] |
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141 // -27 [ saved xmm15 ] <--- rsp_after_call |
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142 // [ saved xmm7-xmm14 ] |
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143 // -9 [ saved xmm6 ] (each xmm register takes 2 slots) |
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144 // -7 [ saved r15 ] |
| 0 | 145 // -6 [ saved r14 ] |
| 146 // -5 [ saved r13 ] | |
| 147 // -4 [ saved r12 ] | |
| 148 // -3 [ saved rdi ] | |
| 149 // -2 [ saved rsi ] | |
| 150 // -1 [ saved rbx ] | |
| 151 // 0 [ saved rbp ] <--- rbp | |
| 152 // 1 [ return address ] | |
| 153 // 2 [ call wrapper ] | |
| 154 // 3 [ result ] | |
| 155 // 4 [ result type ] | |
| 156 // 5 [ method ] | |
| 157 // 6 [ entry point ] | |
| 158 // 7 [ parameters ] | |
| 159 // 8 [ parameter size ] | |
| 160 // 9 [ thread ] | |
| 161 // | |
| 162 // Windows reserves the callers stack space for arguments 1-4. | |
| 163 // We spill c_rarg0-c_rarg3 to this space. | |
| 164 | |
| 165 // Call stub stack layout word offsets from rbp | |
| 166 enum call_stub_layout { | |
| 167 #ifdef _WIN64 | |
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168 xmm_save_first = 6, // save from xmm6 |
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169 xmm_save_last = 15, // to xmm15 |
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170 xmm_save_base = -9, |
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171 rsp_after_call_off = xmm_save_base - 2 * (xmm_save_last - xmm_save_first), // -27 |
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172 r15_off = -7, |
| 0 | 173 r14_off = -6, |
| 174 r13_off = -5, | |
| 175 r12_off = -4, | |
| 176 rdi_off = -3, | |
| 177 rsi_off = -2, | |
| 178 rbx_off = -1, | |
| 179 rbp_off = 0, | |
| 180 retaddr_off = 1, | |
| 181 call_wrapper_off = 2, | |
| 182 result_off = 3, | |
| 183 result_type_off = 4, | |
| 184 method_off = 5, | |
| 185 entry_point_off = 6, | |
| 186 parameters_off = 7, | |
| 187 parameter_size_off = 8, | |
| 188 thread_off = 9 | |
| 189 #else | |
| 190 rsp_after_call_off = -12, | |
| 191 mxcsr_off = rsp_after_call_off, | |
| 192 r15_off = -11, | |
| 193 r14_off = -10, | |
| 194 r13_off = -9, | |
| 195 r12_off = -8, | |
| 196 rbx_off = -7, | |
| 197 call_wrapper_off = -6, | |
| 198 result_off = -5, | |
| 199 result_type_off = -4, | |
| 200 method_off = -3, | |
| 201 entry_point_off = -2, | |
| 202 parameters_off = -1, | |
| 203 rbp_off = 0, | |
| 204 retaddr_off = 1, | |
| 205 parameter_size_off = 2, | |
| 206 thread_off = 3 | |
| 207 #endif | |
| 208 }; | |
| 209 | |
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210 #ifdef _WIN64 |
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211 Address xmm_save(int reg) { |
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212 assert(reg >= xmm_save_first && reg <= xmm_save_last, "XMM register number out of range"); |
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213 return Address(rbp, (xmm_save_base - (reg - xmm_save_first) * 2) * wordSize); |
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214 } |
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215 #endif |
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216 |
| 0 | 217 address generate_call_stub(address& return_address) { |
| 218 assert((int)frame::entry_frame_after_call_words == -(int)rsp_after_call_off + 1 && | |
| 219 (int)frame::entry_frame_call_wrapper_offset == (int)call_wrapper_off, | |
| 220 "adjust this code"); | |
| 221 StubCodeMark mark(this, "StubRoutines", "call_stub"); | |
| 222 address start = __ pc(); | |
| 223 | |
| 224 // same as in generate_catch_exception()! | |
| 225 const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); | |
| 226 | |
| 227 const Address call_wrapper (rbp, call_wrapper_off * wordSize); | |
| 228 const Address result (rbp, result_off * wordSize); | |
| 229 const Address result_type (rbp, result_type_off * wordSize); | |
| 230 const Address method (rbp, method_off * wordSize); | |
| 231 const Address entry_point (rbp, entry_point_off * wordSize); | |
| 232 const Address parameters (rbp, parameters_off * wordSize); | |
| 233 const Address parameter_size(rbp, parameter_size_off * wordSize); | |
| 234 | |
| 235 // same as in generate_catch_exception()! | |
| 236 const Address thread (rbp, thread_off * wordSize); | |
| 237 | |
| 238 const Address r15_save(rbp, r15_off * wordSize); | |
| 239 const Address r14_save(rbp, r14_off * wordSize); | |
| 240 const Address r13_save(rbp, r13_off * wordSize); | |
| 241 const Address r12_save(rbp, r12_off * wordSize); | |
| 242 const Address rbx_save(rbp, rbx_off * wordSize); | |
| 243 | |
| 244 // stub code | |
| 245 __ enter(); | |
| 304 | 246 __ subptr(rsp, -rsp_after_call_off * wordSize); |
| 0 | 247 |
| 248 // save register parameters | |
| 249 #ifndef _WIN64 | |
| 304 | 250 __ movptr(parameters, c_rarg5); // parameters |
| 251 __ movptr(entry_point, c_rarg4); // entry_point | |
| 0 | 252 #endif |
| 253 | |
| 304 | 254 __ movptr(method, c_rarg3); // method |
| 255 __ movl(result_type, c_rarg2); // result type | |
| 256 __ movptr(result, c_rarg1); // result | |
| 257 __ movptr(call_wrapper, c_rarg0); // call wrapper | |
| 0 | 258 |
| 259 // save regs belonging to calling function | |
| 304 | 260 __ movptr(rbx_save, rbx); |
| 261 __ movptr(r12_save, r12); | |
| 262 __ movptr(r13_save, r13); | |
| 263 __ movptr(r14_save, r14); | |
| 264 __ movptr(r15_save, r15); | |
| 0 | 265 #ifdef _WIN64 |
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266 for (int i = 6; i <= 15; i++) { |
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267 __ movdqu(xmm_save(i), as_XMMRegister(i)); |
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268 } |
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269 |
| 0 | 270 const Address rdi_save(rbp, rdi_off * wordSize); |
| 271 const Address rsi_save(rbp, rsi_off * wordSize); | |
| 272 | |
| 304 | 273 __ movptr(rsi_save, rsi); |
| 274 __ movptr(rdi_save, rdi); | |
| 0 | 275 #else |
| 276 const Address mxcsr_save(rbp, mxcsr_off * wordSize); | |
| 277 { | |
| 278 Label skip_ldmx; | |
| 279 __ stmxcsr(mxcsr_save); | |
| 280 __ movl(rax, mxcsr_save); | |
| 281 __ andl(rax, MXCSR_MASK); // Only check control and mask bits | |
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282 ExternalAddress mxcsr_std(StubRoutines::addr_mxcsr_std()); |
| 0 | 283 __ cmp32(rax, mxcsr_std); |
| 284 __ jcc(Assembler::equal, skip_ldmx); | |
| 285 __ ldmxcsr(mxcsr_std); | |
| 286 __ bind(skip_ldmx); | |
| 287 } | |
| 288 #endif | |
| 289 | |
| 290 // Load up thread register | |
| 304 | 291 __ movptr(r15_thread, thread); |
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292 __ reinit_heapbase(); |
| 0 | 293 |
| 294 #ifdef ASSERT | |
| 295 // make sure we have no pending exceptions | |
| 296 { | |
| 297 Label L; | |
| 304 | 298 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 299 __ jcc(Assembler::equal, L); |
| 300 __ stop("StubRoutines::call_stub: entered with pending exception"); | |
| 301 __ bind(L); | |
| 302 } | |
| 303 #endif | |
| 304 | |
| 305 // pass parameters if any | |
| 306 BLOCK_COMMENT("pass parameters if any"); | |
| 307 Label parameters_done; | |
| 308 __ movl(c_rarg3, parameter_size); | |
| 309 __ testl(c_rarg3, c_rarg3); | |
| 310 __ jcc(Assembler::zero, parameters_done); | |
| 311 | |
| 312 Label loop; | |
| 304 | 313 __ movptr(c_rarg2, parameters); // parameter pointer |
| 314 __ movl(c_rarg1, c_rarg3); // parameter counter is in c_rarg1 | |
| 0 | 315 __ BIND(loop); |
| 304 | 316 __ movptr(rax, Address(c_rarg2, 0));// get parameter |
| 317 __ addptr(c_rarg2, wordSize); // advance to next parameter | |
| 318 __ decrementl(c_rarg1); // decrement counter | |
| 319 __ push(rax); // pass parameter | |
| 0 | 320 __ jcc(Assembler::notZero, loop); |
| 321 | |
| 322 // call Java function | |
| 323 __ BIND(parameters_done); | |
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324 __ movptr(rbx, method); // get Method* |
| 304 | 325 __ movptr(c_rarg1, entry_point); // get entry_point |
| 326 __ mov(r13, rsp); // set sender sp | |
| 0 | 327 BLOCK_COMMENT("call Java function"); |
| 328 __ call(c_rarg1); | |
| 329 | |
| 330 BLOCK_COMMENT("call_stub_return_address:"); | |
| 331 return_address = __ pc(); | |
| 332 | |
| 333 // store result depending on type (everything that is not | |
| 334 // T_OBJECT, T_LONG, T_FLOAT or T_DOUBLE is treated as T_INT) | |
| 304 | 335 __ movptr(c_rarg0, result); |
| 0 | 336 Label is_long, is_float, is_double, exit; |
| 337 __ movl(c_rarg1, result_type); | |
| 338 __ cmpl(c_rarg1, T_OBJECT); | |
| 339 __ jcc(Assembler::equal, is_long); | |
| 340 __ cmpl(c_rarg1, T_LONG); | |
| 341 __ jcc(Assembler::equal, is_long); | |
| 342 __ cmpl(c_rarg1, T_FLOAT); | |
| 343 __ jcc(Assembler::equal, is_float); | |
| 344 __ cmpl(c_rarg1, T_DOUBLE); | |
| 345 __ jcc(Assembler::equal, is_double); | |
| 346 | |
| 347 // handle T_INT case | |
| 348 __ movl(Address(c_rarg0, 0), rax); | |
| 349 | |
| 350 __ BIND(exit); | |
| 351 | |
| 352 // pop parameters | |
| 304 | 353 __ lea(rsp, rsp_after_call); |
| 0 | 354 |
| 355 #ifdef ASSERT | |
| 356 // verify that threads correspond | |
| 357 { | |
| 358 Label L, S; | |
| 304 | 359 __ cmpptr(r15_thread, thread); |
| 0 | 360 __ jcc(Assembler::notEqual, S); |
| 361 __ get_thread(rbx); | |
| 304 | 362 __ cmpptr(r15_thread, rbx); |
| 0 | 363 __ jcc(Assembler::equal, L); |
| 364 __ bind(S); | |
| 365 __ jcc(Assembler::equal, L); | |
| 366 __ stop("StubRoutines::call_stub: threads must correspond"); | |
| 367 __ bind(L); | |
| 368 } | |
| 369 #endif | |
| 370 | |
| 371 // restore regs belonging to calling function | |
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372 #ifdef _WIN64 |
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373 for (int i = 15; i >= 6; i--) { |
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374 __ movdqu(as_XMMRegister(i), xmm_save(i)); |
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375 } |
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376 #endif |
| 304 | 377 __ movptr(r15, r15_save); |
| 378 __ movptr(r14, r14_save); | |
| 379 __ movptr(r13, r13_save); | |
| 380 __ movptr(r12, r12_save); | |
| 381 __ movptr(rbx, rbx_save); | |
| 0 | 382 |
| 383 #ifdef _WIN64 | |
| 304 | 384 __ movptr(rdi, rdi_save); |
| 385 __ movptr(rsi, rsi_save); | |
| 0 | 386 #else |
| 387 __ ldmxcsr(mxcsr_save); | |
| 388 #endif | |
| 389 | |
| 390 // restore rsp | |
| 304 | 391 __ addptr(rsp, -rsp_after_call_off * wordSize); |
| 0 | 392 |
| 393 // return | |
| 304 | 394 __ pop(rbp); |
| 0 | 395 __ ret(0); |
| 396 | |
| 397 // handle return types different from T_INT | |
| 398 __ BIND(is_long); | |
| 399 __ movq(Address(c_rarg0, 0), rax); | |
| 400 __ jmp(exit); | |
| 401 | |
| 402 __ BIND(is_float); | |
| 403 __ movflt(Address(c_rarg0, 0), xmm0); | |
| 404 __ jmp(exit); | |
| 405 | |
| 406 __ BIND(is_double); | |
| 407 __ movdbl(Address(c_rarg0, 0), xmm0); | |
| 408 __ jmp(exit); | |
| 409 | |
| 410 return start; | |
| 411 } | |
| 412 | |
| 413 // Return point for a Java call if there's an exception thrown in | |
| 414 // Java code. The exception is caught and transformed into a | |
| 415 // pending exception stored in JavaThread that can be tested from | |
| 416 // within the VM. | |
| 417 // | |
| 418 // Note: Usually the parameters are removed by the callee. In case | |
| 419 // of an exception crossing an activation frame boundary, that is | |
| 420 // not the case if the callee is compiled code => need to setup the | |
| 421 // rsp. | |
| 422 // | |
| 423 // rax: exception oop | |
| 424 | |
| 425 address generate_catch_exception() { | |
| 426 StubCodeMark mark(this, "StubRoutines", "catch_exception"); | |
| 427 address start = __ pc(); | |
| 428 | |
| 429 // same as in generate_call_stub(): | |
| 430 const Address rsp_after_call(rbp, rsp_after_call_off * wordSize); | |
| 431 const Address thread (rbp, thread_off * wordSize); | |
| 432 | |
| 433 #ifdef ASSERT | |
| 434 // verify that threads correspond | |
| 435 { | |
| 436 Label L, S; | |
| 304 | 437 __ cmpptr(r15_thread, thread); |
| 0 | 438 __ jcc(Assembler::notEqual, S); |
| 439 __ get_thread(rbx); | |
| 304 | 440 __ cmpptr(r15_thread, rbx); |
| 0 | 441 __ jcc(Assembler::equal, L); |
| 442 __ bind(S); | |
| 443 __ stop("StubRoutines::catch_exception: threads must correspond"); | |
| 444 __ bind(L); | |
| 445 } | |
| 446 #endif | |
| 447 | |
| 448 // set pending exception | |
| 449 __ verify_oop(rax); | |
| 450 | |
| 304 | 451 __ movptr(Address(r15_thread, Thread::pending_exception_offset()), rax); |
| 0 | 452 __ lea(rscratch1, ExternalAddress((address)__FILE__)); |
| 304 | 453 __ movptr(Address(r15_thread, Thread::exception_file_offset()), rscratch1); |
| 0 | 454 __ movl(Address(r15_thread, Thread::exception_line_offset()), (int) __LINE__); |
| 455 | |
| 456 // complete return to VM | |
| 457 assert(StubRoutines::_call_stub_return_address != NULL, | |
| 458 "_call_stub_return_address must have been generated before"); | |
| 459 __ jump(RuntimeAddress(StubRoutines::_call_stub_return_address)); | |
| 460 | |
| 461 return start; | |
| 462 } | |
| 463 | |
| 464 // Continuation point for runtime calls returning with a pending | |
| 465 // exception. The pending exception check happened in the runtime | |
| 466 // or native call stub. The pending exception in Thread is | |
| 467 // converted into a Java-level exception. | |
| 468 // | |
| 469 // Contract with Java-level exception handlers: | |
| 470 // rax: exception | |
| 471 // rdx: throwing pc | |
| 472 // | |
| 473 // NOTE: At entry of this stub, exception-pc must be on stack !! | |
| 474 | |
| 475 address generate_forward_exception() { | |
| 476 StubCodeMark mark(this, "StubRoutines", "forward exception"); | |
| 477 address start = __ pc(); | |
| 478 | |
| 479 // Upon entry, the sp points to the return address returning into | |
| 480 // Java (interpreted or compiled) code; i.e., the return address | |
| 481 // becomes the throwing pc. | |
| 482 // | |
| 483 // Arguments pushed before the runtime call are still on the stack | |
| 484 // but the exception handler will reset the stack pointer -> | |
| 485 // ignore them. A potential result in registers can be ignored as | |
| 486 // well. | |
| 487 | |
| 488 #ifdef ASSERT | |
| 489 // make sure this code is only executed if there is a pending exception | |
| 490 { | |
| 491 Label L; | |
| 304 | 492 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t) NULL); |
| 0 | 493 __ jcc(Assembler::notEqual, L); |
| 494 __ stop("StubRoutines::forward exception: no pending exception (1)"); | |
| 495 __ bind(L); | |
| 496 } | |
| 497 #endif | |
| 498 | |
| 499 // compute exception handler into rbx | |
| 304 | 500 __ movptr(c_rarg0, Address(rsp, 0)); |
| 0 | 501 BLOCK_COMMENT("call exception_handler_for_return_address"); |
| 502 __ call_VM_leaf(CAST_FROM_FN_PTR(address, | |
| 503 SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 504 r15_thread, c_rarg0); |
| 304 | 505 __ mov(rbx, rax); |
| 0 | 506 |
| 507 // setup rax & rdx, remove return address & clear pending exception | |
| 304 | 508 __ pop(rdx); |
| 509 __ movptr(rax, Address(r15_thread, Thread::pending_exception_offset())); | |
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510 __ movptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 511 |
| 512 #ifdef ASSERT | |
| 513 // make sure exception is set | |
| 514 { | |
| 515 Label L; | |
| 304 | 516 __ testptr(rax, rax); |
| 0 | 517 __ jcc(Assembler::notEqual, L); |
| 518 __ stop("StubRoutines::forward exception: no pending exception (2)"); | |
| 519 __ bind(L); | |
| 520 } | |
| 521 #endif | |
| 522 | |
| 523 // continue at exception handler (return address removed) | |
| 524 // rax: exception | |
| 525 // rbx: exception handler | |
| 526 // rdx: throwing pc | |
| 527 __ verify_oop(rax); | |
| 528 __ jmp(rbx); | |
| 529 | |
| 530 return start; | |
| 531 } | |
| 532 | |
| 533 // Support for jint atomic::xchg(jint exchange_value, volatile jint* dest) | |
| 534 // | |
| 535 // Arguments : | |
| 536 // c_rarg0: exchange_value | |
| 537 // c_rarg0: dest | |
| 538 // | |
| 539 // Result: | |
| 540 // *dest <- ex, return (orig *dest) | |
| 541 address generate_atomic_xchg() { | |
| 542 StubCodeMark mark(this, "StubRoutines", "atomic_xchg"); | |
| 543 address start = __ pc(); | |
| 544 | |
| 545 __ movl(rax, c_rarg0); // Copy to eax we need a return value anyhow | |
| 546 __ xchgl(rax, Address(c_rarg1, 0)); // automatic LOCK | |
| 547 __ ret(0); | |
| 548 | |
| 549 return start; | |
| 550 } | |
| 551 | |
| 552 // Support for intptr_t atomic::xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest) | |
| 553 // | |
| 554 // Arguments : | |
| 555 // c_rarg0: exchange_value | |
| 556 // c_rarg1: dest | |
| 557 // | |
| 558 // Result: | |
| 559 // *dest <- ex, return (orig *dest) | |
| 560 address generate_atomic_xchg_ptr() { | |
| 561 StubCodeMark mark(this, "StubRoutines", "atomic_xchg_ptr"); | |
| 562 address start = __ pc(); | |
| 563 | |
| 304 | 564 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
| 565 __ xchgptr(rax, Address(c_rarg1, 0)); // automatic LOCK | |
| 0 | 566 __ ret(0); |
| 567 | |
| 568 return start; | |
| 569 } | |
| 570 | |
| 571 // Support for jint atomic::atomic_cmpxchg(jint exchange_value, volatile jint* dest, | |
| 572 // jint compare_value) | |
| 573 // | |
| 574 // Arguments : | |
| 575 // c_rarg0: exchange_value | |
| 576 // c_rarg1: dest | |
| 577 // c_rarg2: compare_value | |
| 578 // | |
| 579 // Result: | |
| 580 // if ( compare_value == *dest ) { | |
| 581 // *dest = exchange_value | |
| 582 // return compare_value; | |
| 583 // else | |
| 584 // return *dest; | |
| 585 address generate_atomic_cmpxchg() { | |
| 586 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg"); | |
| 587 address start = __ pc(); | |
| 588 | |
| 589 __ movl(rax, c_rarg2); | |
| 590 if ( os::is_MP() ) __ lock(); | |
| 591 __ cmpxchgl(c_rarg0, Address(c_rarg1, 0)); | |
| 592 __ ret(0); | |
| 593 | |
| 594 return start; | |
| 595 } | |
| 596 | |
| 597 // Support for jint atomic::atomic_cmpxchg_long(jlong exchange_value, | |
| 598 // volatile jlong* dest, | |
| 599 // jlong compare_value) | |
| 600 // Arguments : | |
| 601 // c_rarg0: exchange_value | |
| 602 // c_rarg1: dest | |
| 603 // c_rarg2: compare_value | |
| 604 // | |
| 605 // Result: | |
| 606 // if ( compare_value == *dest ) { | |
| 607 // *dest = exchange_value | |
| 608 // return compare_value; | |
| 609 // else | |
| 610 // return *dest; | |
| 611 address generate_atomic_cmpxchg_long() { | |
| 612 StubCodeMark mark(this, "StubRoutines", "atomic_cmpxchg_long"); | |
| 613 address start = __ pc(); | |
| 614 | |
| 615 __ movq(rax, c_rarg2); | |
| 616 if ( os::is_MP() ) __ lock(); | |
| 617 __ cmpxchgq(c_rarg0, Address(c_rarg1, 0)); | |
| 618 __ ret(0); | |
| 619 | |
| 620 return start; | |
| 621 } | |
| 622 | |
| 623 // Support for jint atomic::add(jint add_value, volatile jint* dest) | |
| 624 // | |
| 625 // Arguments : | |
| 626 // c_rarg0: add_value | |
| 627 // c_rarg1: dest | |
| 628 // | |
| 629 // Result: | |
| 630 // *dest += add_value | |
| 631 // return *dest; | |
| 632 address generate_atomic_add() { | |
| 633 StubCodeMark mark(this, "StubRoutines", "atomic_add"); | |
| 634 address start = __ pc(); | |
| 635 | |
| 636 __ movl(rax, c_rarg0); | |
| 637 if ( os::is_MP() ) __ lock(); | |
| 638 __ xaddl(Address(c_rarg1, 0), c_rarg0); | |
| 639 __ addl(rax, c_rarg0); | |
| 640 __ ret(0); | |
| 641 | |
| 642 return start; | |
| 643 } | |
| 644 | |
| 645 // Support for intptr_t atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) | |
| 646 // | |
| 647 // Arguments : | |
| 648 // c_rarg0: add_value | |
| 649 // c_rarg1: dest | |
| 650 // | |
| 651 // Result: | |
| 652 // *dest += add_value | |
| 653 // return *dest; | |
| 654 address generate_atomic_add_ptr() { | |
| 655 StubCodeMark mark(this, "StubRoutines", "atomic_add_ptr"); | |
| 656 address start = __ pc(); | |
| 657 | |
| 304 | 658 __ movptr(rax, c_rarg0); // Copy to eax we need a return value anyhow |
| 0 | 659 if ( os::is_MP() ) __ lock(); |
| 304 | 660 __ xaddptr(Address(c_rarg1, 0), c_rarg0); |
| 661 __ addptr(rax, c_rarg0); | |
| 0 | 662 __ ret(0); |
| 663 | |
| 664 return start; | |
| 665 } | |
| 666 | |
| 667 // Support for intptr_t OrderAccess::fence() | |
| 668 // | |
| 669 // Arguments : | |
| 670 // | |
| 671 // Result: | |
| 672 address generate_orderaccess_fence() { | |
| 673 StubCodeMark mark(this, "StubRoutines", "orderaccess_fence"); | |
| 674 address start = __ pc(); | |
|
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675 __ membar(Assembler::StoreLoad); |
| 0 | 676 __ ret(0); |
| 677 | |
| 678 return start; | |
| 679 } | |
| 680 | |
| 681 // Support for intptr_t get_previous_fp() | |
| 682 // | |
| 683 // This routine is used to find the previous frame pointer for the | |
| 684 // caller (current_frame_guess). This is used as part of debugging | |
| 685 // ps() is seemingly lost trying to find frames. | |
| 686 // This code assumes that caller current_frame_guess) has a frame. | |
| 687 address generate_get_previous_fp() { | |
| 688 StubCodeMark mark(this, "StubRoutines", "get_previous_fp"); | |
| 689 const Address old_fp(rbp, 0); | |
| 690 const Address older_fp(rax, 0); | |
| 691 address start = __ pc(); | |
| 692 | |
| 693 __ enter(); | |
| 304 | 694 __ movptr(rax, old_fp); // callers fp |
| 695 __ movptr(rax, older_fp); // the frame for ps() | |
| 696 __ pop(rbp); | |
| 0 | 697 __ ret(0); |
| 698 | |
| 699 return start; | |
| 700 } | |
| 701 | |
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702 // Support for intptr_t get_previous_sp() |
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703 // |
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704 // This routine is used to find the previous stack pointer for the |
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705 // caller. |
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706 address generate_get_previous_sp() { |
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707 StubCodeMark mark(this, "StubRoutines", "get_previous_sp"); |
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708 address start = __ pc(); |
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709 |
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710 __ movptr(rax, rsp); |
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711 __ addptr(rax, 8); // return address is at the top of the stack. |
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712 __ ret(0); |
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713 |
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714 return start; |
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715 } |
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716 |
| 0 | 717 //---------------------------------------------------------------------------------------------------- |
| 718 // Support for void verify_mxcsr() | |
| 719 // | |
| 720 // This routine is used with -Xcheck:jni to verify that native | |
| 721 // JNI code does not return to Java code without restoring the | |
| 722 // MXCSR register to our expected state. | |
| 723 | |
| 724 address generate_verify_mxcsr() { | |
| 725 StubCodeMark mark(this, "StubRoutines", "verify_mxcsr"); | |
| 726 address start = __ pc(); | |
| 727 | |
| 728 const Address mxcsr_save(rsp, 0); | |
| 729 | |
| 730 if (CheckJNICalls) { | |
| 731 Label ok_ret; | |
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732 ExternalAddress mxcsr_std(StubRoutines::addr_mxcsr_std()); |
| 304 | 733 __ push(rax); |
| 734 __ subptr(rsp, wordSize); // allocate a temp location | |
| 0 | 735 __ stmxcsr(mxcsr_save); |
| 736 __ movl(rax, mxcsr_save); | |
| 737 __ andl(rax, MXCSR_MASK); // Only check control and mask bits | |
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738 __ cmp32(rax, mxcsr_std); |
| 0 | 739 __ jcc(Assembler::equal, ok_ret); |
| 740 | |
| 741 __ warn("MXCSR changed by native JNI code, use -XX:+RestoreMXCSROnJNICall"); | |
| 742 | |
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743 __ ldmxcsr(mxcsr_std); |
| 0 | 744 |
| 745 __ bind(ok_ret); | |
| 304 | 746 __ addptr(rsp, wordSize); |
| 747 __ pop(rax); | |
| 0 | 748 } |
| 749 | |
| 750 __ ret(0); | |
| 751 | |
| 752 return start; | |
| 753 } | |
| 754 | |
| 755 address generate_f2i_fixup() { | |
| 756 StubCodeMark mark(this, "StubRoutines", "f2i_fixup"); | |
| 757 Address inout(rsp, 5 * wordSize); // return address + 4 saves | |
| 758 | |
| 759 address start = __ pc(); | |
| 760 | |
| 761 Label L; | |
| 762 | |
| 304 | 763 __ push(rax); |
| 764 __ push(c_rarg3); | |
| 765 __ push(c_rarg2); | |
| 766 __ push(c_rarg1); | |
| 0 | 767 |
| 768 __ movl(rax, 0x7f800000); | |
| 769 __ xorl(c_rarg3, c_rarg3); | |
| 770 __ movl(c_rarg2, inout); | |
| 771 __ movl(c_rarg1, c_rarg2); | |
| 772 __ andl(c_rarg1, 0x7fffffff); | |
| 773 __ cmpl(rax, c_rarg1); // NaN? -> 0 | |
| 774 __ jcc(Assembler::negative, L); | |
| 775 __ testl(c_rarg2, c_rarg2); // signed ? min_jint : max_jint | |
| 776 __ movl(c_rarg3, 0x80000000); | |
| 777 __ movl(rax, 0x7fffffff); | |
| 778 __ cmovl(Assembler::positive, c_rarg3, rax); | |
| 779 | |
| 780 __ bind(L); | |
| 304 | 781 __ movptr(inout, c_rarg3); |
| 782 | |
| 783 __ pop(c_rarg1); | |
| 784 __ pop(c_rarg2); | |
| 785 __ pop(c_rarg3); | |
| 786 __ pop(rax); | |
| 0 | 787 |
| 788 __ ret(0); | |
| 789 | |
| 790 return start; | |
| 791 } | |
| 792 | |
| 793 address generate_f2l_fixup() { | |
| 794 StubCodeMark mark(this, "StubRoutines", "f2l_fixup"); | |
| 795 Address inout(rsp, 5 * wordSize); // return address + 4 saves | |
| 796 address start = __ pc(); | |
| 797 | |
| 798 Label L; | |
| 799 | |
| 304 | 800 __ push(rax); |
| 801 __ push(c_rarg3); | |
| 802 __ push(c_rarg2); | |
| 803 __ push(c_rarg1); | |
| 0 | 804 |
| 805 __ movl(rax, 0x7f800000); | |
| 806 __ xorl(c_rarg3, c_rarg3); | |
| 807 __ movl(c_rarg2, inout); | |
| 808 __ movl(c_rarg1, c_rarg2); | |
| 809 __ andl(c_rarg1, 0x7fffffff); | |
| 810 __ cmpl(rax, c_rarg1); // NaN? -> 0 | |
| 811 __ jcc(Assembler::negative, L); | |
| 812 __ testl(c_rarg2, c_rarg2); // signed ? min_jlong : max_jlong | |
| 813 __ mov64(c_rarg3, 0x8000000000000000); | |
| 814 __ mov64(rax, 0x7fffffffffffffff); | |
| 304 | 815 __ cmov(Assembler::positive, c_rarg3, rax); |
| 0 | 816 |
| 817 __ bind(L); | |
| 304 | 818 __ movptr(inout, c_rarg3); |
| 819 | |
| 820 __ pop(c_rarg1); | |
| 821 __ pop(c_rarg2); | |
| 822 __ pop(c_rarg3); | |
| 823 __ pop(rax); | |
| 0 | 824 |
| 825 __ ret(0); | |
| 826 | |
| 827 return start; | |
| 828 } | |
| 829 | |
| 830 address generate_d2i_fixup() { | |
| 831 StubCodeMark mark(this, "StubRoutines", "d2i_fixup"); | |
| 832 Address inout(rsp, 6 * wordSize); // return address + 5 saves | |
| 833 | |
| 834 address start = __ pc(); | |
| 835 | |
| 836 Label L; | |
| 837 | |
| 304 | 838 __ push(rax); |
| 839 __ push(c_rarg3); | |
| 840 __ push(c_rarg2); | |
| 841 __ push(c_rarg1); | |
| 842 __ push(c_rarg0); | |
| 0 | 843 |
| 844 __ movl(rax, 0x7ff00000); | |
| 845 __ movq(c_rarg2, inout); | |
| 846 __ movl(c_rarg3, c_rarg2); | |
| 304 | 847 __ mov(c_rarg1, c_rarg2); |
| 848 __ mov(c_rarg0, c_rarg2); | |
| 0 | 849 __ negl(c_rarg3); |
| 304 | 850 __ shrptr(c_rarg1, 0x20); |
| 0 | 851 __ orl(c_rarg3, c_rarg2); |
| 852 __ andl(c_rarg1, 0x7fffffff); | |
| 853 __ xorl(c_rarg2, c_rarg2); | |
| 854 __ shrl(c_rarg3, 0x1f); | |
| 855 __ orl(c_rarg1, c_rarg3); | |
| 856 __ cmpl(rax, c_rarg1); | |
| 857 __ jcc(Assembler::negative, L); // NaN -> 0 | |
| 304 | 858 __ testptr(c_rarg0, c_rarg0); // signed ? min_jint : max_jint |
| 0 | 859 __ movl(c_rarg2, 0x80000000); |
| 860 __ movl(rax, 0x7fffffff); | |
| 304 | 861 __ cmov(Assembler::positive, c_rarg2, rax); |
| 0 | 862 |
| 863 __ bind(L); | |
| 304 | 864 __ movptr(inout, c_rarg2); |
| 865 | |
| 866 __ pop(c_rarg0); | |
| 867 __ pop(c_rarg1); | |
| 868 __ pop(c_rarg2); | |
| 869 __ pop(c_rarg3); | |
| 870 __ pop(rax); | |
| 0 | 871 |
| 872 __ ret(0); | |
| 873 | |
| 874 return start; | |
| 875 } | |
| 876 | |
| 877 address generate_d2l_fixup() { | |
| 878 StubCodeMark mark(this, "StubRoutines", "d2l_fixup"); | |
| 879 Address inout(rsp, 6 * wordSize); // return address + 5 saves | |
| 880 | |
| 881 address start = __ pc(); | |
| 882 | |
| 883 Label L; | |
| 884 | |
| 304 | 885 __ push(rax); |
| 886 __ push(c_rarg3); | |
| 887 __ push(c_rarg2); | |
| 888 __ push(c_rarg1); | |
| 889 __ push(c_rarg0); | |
| 0 | 890 |
| 891 __ movl(rax, 0x7ff00000); | |
| 892 __ movq(c_rarg2, inout); | |
| 893 __ movl(c_rarg3, c_rarg2); | |
| 304 | 894 __ mov(c_rarg1, c_rarg2); |
| 895 __ mov(c_rarg0, c_rarg2); | |
| 0 | 896 __ negl(c_rarg3); |
| 304 | 897 __ shrptr(c_rarg1, 0x20); |
| 0 | 898 __ orl(c_rarg3, c_rarg2); |
| 899 __ andl(c_rarg1, 0x7fffffff); | |
| 900 __ xorl(c_rarg2, c_rarg2); | |
| 901 __ shrl(c_rarg3, 0x1f); | |
| 902 __ orl(c_rarg1, c_rarg3); | |
| 903 __ cmpl(rax, c_rarg1); | |
| 904 __ jcc(Assembler::negative, L); // NaN -> 0 | |
| 905 __ testq(c_rarg0, c_rarg0); // signed ? min_jlong : max_jlong | |
| 906 __ mov64(c_rarg2, 0x8000000000000000); | |
| 907 __ mov64(rax, 0x7fffffffffffffff); | |
| 908 __ cmovq(Assembler::positive, c_rarg2, rax); | |
| 909 | |
| 910 __ bind(L); | |
| 911 __ movq(inout, c_rarg2); | |
| 912 | |
| 304 | 913 __ pop(c_rarg0); |
| 914 __ pop(c_rarg1); | |
| 915 __ pop(c_rarg2); | |
| 916 __ pop(c_rarg3); | |
| 917 __ pop(rax); | |
| 0 | 918 |
| 919 __ ret(0); | |
| 920 | |
| 921 return start; | |
| 922 } | |
| 923 | |
| 924 address generate_fp_mask(const char *stub_name, int64_t mask) { | |
| 1365 | 925 __ align(CodeEntryAlignment); |
| 0 | 926 StubCodeMark mark(this, "StubRoutines", stub_name); |
| 927 address start = __ pc(); | |
| 928 | |
| 929 __ emit_data64( mask, relocInfo::none ); | |
| 930 __ emit_data64( mask, relocInfo::none ); | |
| 931 | |
| 932 return start; | |
| 933 } | |
| 934 | |
| 935 // The following routine generates a subroutine to throw an | |
| 936 // asynchronous UnknownError when an unsafe access gets a fault that | |
| 937 // could not be reasonably prevented by the programmer. (Example: | |
| 938 // SIGBUS/OBJERR.) | |
| 939 address generate_handler_for_unsafe_access() { | |
| 940 StubCodeMark mark(this, "StubRoutines", "handler_for_unsafe_access"); | |
| 941 address start = __ pc(); | |
| 942 | |
| 304 | 943 __ push(0); // hole for return address-to-be |
| 944 __ pusha(); // push registers | |
| 0 | 945 Address next_pc(rsp, RegisterImpl::number_of_registers * BytesPerWord); |
| 946 | |
| 3937 | 947 // FIXME: this probably needs alignment logic |
| 948 | |
| 304 | 949 __ subptr(rsp, frame::arg_reg_save_area_bytes); |
| 0 | 950 BLOCK_COMMENT("call handle_unsafe_access"); |
| 951 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, handle_unsafe_access))); | |
| 304 | 952 __ addptr(rsp, frame::arg_reg_save_area_bytes); |
| 953 | |
| 954 __ movptr(next_pc, rax); // stuff next address | |
| 955 __ popa(); | |
| 0 | 956 __ ret(0); // jump to next address |
| 957 | |
| 958 return start; | |
| 959 } | |
| 960 | |
| 961 // Non-destructive plausibility checks for oops | |
| 962 // | |
| 963 // Arguments: | |
| 964 // all args on stack! | |
| 965 // | |
| 966 // Stack after saving c_rarg3: | |
| 967 // [tos + 0]: saved c_rarg3 | |
| 968 // [tos + 1]: saved c_rarg2 | |
|
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969 // [tos + 2]: saved r12 (several TemplateTable methods use it) |
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970 // [tos + 3]: saved flags |
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971 // [tos + 4]: return address |
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972 // * [tos + 5]: error message (char*) |
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973 // * [tos + 6]: object to verify (oop) |
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974 // * [tos + 7]: saved rax - saved by caller and bashed |
| 1583 | 975 // * [tos + 8]: saved r10 (rscratch1) - saved by caller |
| 0 | 976 // * = popped on exit |
| 977 address generate_verify_oop() { | |
| 978 StubCodeMark mark(this, "StubRoutines", "verify_oop"); | |
| 979 address start = __ pc(); | |
| 980 | |
| 981 Label exit, error; | |
| 982 | |
| 304 | 983 __ pushf(); |
| 0 | 984 __ incrementl(ExternalAddress((address) StubRoutines::verify_oop_count_addr())); |
| 985 | |
| 304 | 986 __ push(r12); |
|
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987 |
| 0 | 988 // save c_rarg2 and c_rarg3 |
| 304 | 989 __ push(c_rarg2); |
| 990 __ push(c_rarg3); | |
| 0 | 991 |
|
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992 enum { |
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993 // After previous pushes. |
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994 oop_to_verify = 6 * wordSize, |
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995 saved_rax = 7 * wordSize, |
| 1583 | 996 saved_r10 = 8 * wordSize, |
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997 |
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998 // Before the call to MacroAssembler::debug(), see below. |
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999 return_addr = 16 * wordSize, |
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1000 error_msg = 17 * wordSize |
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1001 }; |
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1002 |
| 0 | 1003 // get object |
| 304 | 1004 __ movptr(rax, Address(rsp, oop_to_verify)); |
| 0 | 1005 |
| 1006 // make sure object is 'reasonable' | |
| 304 | 1007 __ testptr(rax, rax); |
| 0 | 1008 __ jcc(Assembler::zero, exit); // if obj is NULL it is OK |
| 1009 // Check if the oop is in the right area of memory | |
| 304 | 1010 __ movptr(c_rarg2, rax); |
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1011 __ movptr(c_rarg3, (intptr_t) Universe::verify_oop_mask()); |
| 304 | 1012 __ andptr(c_rarg2, c_rarg3); |
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1013 __ movptr(c_rarg3, (intptr_t) Universe::verify_oop_bits()); |
| 304 | 1014 __ cmpptr(c_rarg2, c_rarg3); |
| 0 | 1015 __ jcc(Assembler::notZero, error); |
| 1016 | |
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1017 // set r12 to heapbase for load_klass() |
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1018 __ reinit_heapbase(); |
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1019 |
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1020 // make sure klass is 'reasonable', which is not zero. |
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1021 __ load_klass(rax, rax); // get klass |
| 304 | 1022 __ testptr(rax, rax); |
| 0 | 1023 __ jcc(Assembler::zero, error); // if klass is NULL it is broken |
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1024 // TODO: Future assert that klass is lower 4g memory for UseCompressedKlassPointers |
| 0 | 1025 |
| 1026 // return if everything seems ok | |
| 1027 __ bind(exit); | |
| 304 | 1028 __ movptr(rax, Address(rsp, saved_rax)); // get saved rax back |
| 1583 | 1029 __ movptr(rscratch1, Address(rsp, saved_r10)); // get saved r10 back |
| 304 | 1030 __ pop(c_rarg3); // restore c_rarg3 |
| 1031 __ pop(c_rarg2); // restore c_rarg2 | |
| 1032 __ pop(r12); // restore r12 | |
| 1033 __ popf(); // restore flags | |
| 1583 | 1034 __ ret(4 * wordSize); // pop caller saved stuff |
| 0 | 1035 |
| 1036 // handle errors | |
| 1037 __ bind(error); | |
| 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); // get saved c_rarg3 back |
| 1041 __ pop(c_rarg2); // get saved c_rarg2 back | |
| 1042 __ pop(r12); // get saved r12 back | |
| 1043 __ popf(); // get saved flags off stack -- | |
| 0 | 1044 // will be ignored |
| 1045 | |
| 304 | 1046 __ pusha(); // push registers |
| 0 | 1047 // (rip is already |
| 1048 // already pushed) | |
|
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1049 // debug(char* msg, int64_t pc, int64_t regs[]) |
| 0 | 1050 // We've popped the registers we'd saved (c_rarg3, c_rarg2 and flags), and |
| 1051 // pushed all the registers, so now the stack looks like: | |
| 1052 // [tos + 0] 16 saved registers | |
| 1053 // [tos + 16] return address | |
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1054 // * [tos + 17] error message (char*) |
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1055 // * [tos + 18] object to verify (oop) |
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1056 // * [tos + 19] saved rax - saved by caller and bashed |
| 1583 | 1057 // * [tos + 20] saved r10 (rscratch1) - saved by caller |
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1058 // * = popped on exit |
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1059 |
| 304 | 1060 __ movptr(c_rarg0, Address(rsp, error_msg)); // pass address of error message |
| 1061 __ movptr(c_rarg1, Address(rsp, return_addr)); // pass return address | |
| 1062 __ movq(c_rarg2, rsp); // pass address of regs on stack | |
| 1063 __ mov(r12, rsp); // remember rsp | |
| 1064 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
| 1065 __ andptr(rsp, -16); // align stack as required by ABI | |
| 0 | 1066 BLOCK_COMMENT("call MacroAssembler::debug"); |
| 304 | 1067 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, MacroAssembler::debug64))); |
| 1068 __ mov(rsp, r12); // restore rsp | |
| 1069 __ popa(); // pop registers (includes r12) | |
| 1583 | 1070 __ ret(4 * wordSize); // pop caller saved stuff |
| 0 | 1071 |
| 1072 return start; | |
| 1073 } | |
| 1074 | |
| 1075 // | |
| 1076 // Verify that a register contains clean 32-bits positive value | |
| 1077 // (high 32-bits are 0) so it could be used in 64-bits shifts. | |
| 1078 // | |
| 1079 // Input: | |
| 1080 // Rint - 32-bits value | |
| 1081 // Rtmp - scratch | |
| 1082 // | |
| 1083 void assert_clean_int(Register Rint, Register Rtmp) { | |
| 1084 #ifdef ASSERT | |
| 1085 Label L; | |
| 1086 assert_different_registers(Rtmp, Rint); | |
| 1087 __ movslq(Rtmp, Rint); | |
| 1088 __ cmpq(Rtmp, Rint); | |
|
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1089 __ jcc(Assembler::equal, L); |
| 0 | 1090 __ stop("high 32-bits of int value are not 0"); |
| 1091 __ bind(L); | |
| 1092 #endif | |
| 1093 } | |
| 1094 | |
| 1095 // Generate overlap test for array copy stubs | |
| 1096 // | |
| 1097 // Input: | |
| 1098 // c_rarg0 - from | |
| 1099 // c_rarg1 - to | |
| 1100 // c_rarg2 - element count | |
| 1101 // | |
| 1102 // Output: | |
| 1103 // rax - &from[element count - 1] | |
| 1104 // | |
| 1105 void array_overlap_test(address no_overlap_target, Address::ScaleFactor sf) { | |
| 1106 assert(no_overlap_target != NULL, "must be generated"); | |
| 1107 array_overlap_test(no_overlap_target, NULL, sf); | |
| 1108 } | |
| 1109 void array_overlap_test(Label& L_no_overlap, Address::ScaleFactor sf) { | |
| 1110 array_overlap_test(NULL, &L_no_overlap, sf); | |
| 1111 } | |
| 1112 void array_overlap_test(address no_overlap_target, Label* NOLp, Address::ScaleFactor sf) { | |
| 1113 const Register from = c_rarg0; | |
| 1114 const Register to = c_rarg1; | |
| 1115 const Register count = c_rarg2; | |
| 1116 const Register end_from = rax; | |
| 1117 | |
| 304 | 1118 __ cmpptr(to, from); |
| 1119 __ lea(end_from, Address(from, count, sf, 0)); | |
| 0 | 1120 if (NOLp == NULL) { |
| 1121 ExternalAddress no_overlap(no_overlap_target); | |
| 1122 __ jump_cc(Assembler::belowEqual, no_overlap); | |
| 304 | 1123 __ cmpptr(to, end_from); |
| 0 | 1124 __ jump_cc(Assembler::aboveEqual, no_overlap); |
| 1125 } else { | |
| 1126 __ jcc(Assembler::belowEqual, (*NOLp)); | |
| 304 | 1127 __ cmpptr(to, end_from); |
| 0 | 1128 __ jcc(Assembler::aboveEqual, (*NOLp)); |
| 1129 } | |
| 1130 } | |
| 1131 | |
| 1132 // Shuffle first three arg regs on Windows into Linux/Solaris locations. | |
| 1133 // | |
| 1134 // Outputs: | |
| 1135 // rdi - rcx | |
| 1136 // rsi - rdx | |
| 1137 // rdx - r8 | |
| 1138 // rcx - r9 | |
| 1139 // | |
| 1140 // Registers r9 and r10 are used to save rdi and rsi on Windows, which latter | |
| 1141 // are non-volatile. r9 and r10 should not be used by the caller. | |
| 1142 // | |
| 1143 void setup_arg_regs(int nargs = 3) { | |
| 1144 const Register saved_rdi = r9; | |
| 1145 const Register saved_rsi = r10; | |
| 1146 assert(nargs == 3 || nargs == 4, "else fix"); | |
| 1147 #ifdef _WIN64 | |
| 1148 assert(c_rarg0 == rcx && c_rarg1 == rdx && c_rarg2 == r8 && c_rarg3 == r9, | |
| 1149 "unexpected argument registers"); | |
| 1150 if (nargs >= 4) | |
| 304 | 1151 __ mov(rax, r9); // r9 is also saved_rdi |
| 1152 __ movptr(saved_rdi, rdi); | |
| 1153 __ movptr(saved_rsi, rsi); | |
| 1154 __ mov(rdi, rcx); // c_rarg0 | |
| 1155 __ mov(rsi, rdx); // c_rarg1 | |
| 1156 __ mov(rdx, r8); // c_rarg2 | |
| 0 | 1157 if (nargs >= 4) |
| 304 | 1158 __ mov(rcx, rax); // c_rarg3 (via rax) |
| 0 | 1159 #else |
| 1160 assert(c_rarg0 == rdi && c_rarg1 == rsi && c_rarg2 == rdx && c_rarg3 == rcx, | |
| 1161 "unexpected argument registers"); | |
| 1162 #endif | |
| 1163 } | |
| 1164 | |
| 1165 void restore_arg_regs() { | |
| 1166 const Register saved_rdi = r9; | |
| 1167 const Register saved_rsi = r10; | |
| 1168 #ifdef _WIN64 | |
| 304 | 1169 __ movptr(rdi, saved_rdi); |
| 1170 __ movptr(rsi, saved_rsi); | |
| 0 | 1171 #endif |
| 1172 } | |
| 1173 | |
| 1174 // Generate code for an array write pre barrier | |
| 1175 // | |
| 1176 // addr - starting address | |
| 2324 | 1177 // count - element count |
| 1178 // tmp - scratch register | |
| 0 | 1179 // |
| 1180 // Destroy no registers! | |
| 1181 // | |
| 2324 | 1182 void gen_write_ref_array_pre_barrier(Register addr, Register count, bool dest_uninitialized) { |
| 0 | 1183 BarrierSet* bs = Universe::heap()->barrier_set(); |
| 1184 switch (bs->kind()) { | |
| 1185 case BarrierSet::G1SATBCT: | |
| 1186 case BarrierSet::G1SATBCTLogging: | |
| 2324 | 1187 // With G1, don't generate the call if we statically know that the target in uninitialized |
| 1188 if (!dest_uninitialized) { | |
| 1189 __ pusha(); // push registers | |
| 1190 if (count == c_rarg0) { | |
| 1191 if (addr == c_rarg1) { | |
| 1192 // exactly backwards!! | |
| 1193 __ xchgptr(c_rarg1, c_rarg0); | |
| 1194 } else { | |
| 1195 __ movptr(c_rarg1, count); | |
| 1196 __ movptr(c_rarg0, addr); | |
| 1197 } | |
| 1198 } else { | |
| 1199 __ movptr(c_rarg0, addr); | |
| 1200 __ movptr(c_rarg1, count); | |
| 1201 } | |
| 1202 __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_pre), 2); | |
| 1203 __ popa(); | |
| 0 | 1204 } |
| 2324 | 1205 break; |
| 0 | 1206 case BarrierSet::CardTableModRef: |
| 1207 case BarrierSet::CardTableExtension: | |
| 1208 case BarrierSet::ModRef: | |
| 1209 break; | |
|
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1210 default: |
| 0 | 1211 ShouldNotReachHere(); |
| 1212 | |
| 1213 } | |
| 1214 } | |
| 1215 | |
| 1216 // | |
| 1217 // Generate code for an array write post barrier | |
| 1218 // | |
| 1219 // Input: | |
| 1220 // start - register containing starting address of destination array | |
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1221 // count - elements count |
| 0 | 1222 // scratch - scratch register |
| 1223 // | |
| 1224 // The input registers are overwritten. | |
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1225 // |
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1226 void gen_write_ref_array_post_barrier(Register start, Register count, Register scratch) { |
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1227 assert_different_registers(start, count, scratch); |
| 0 | 1228 BarrierSet* bs = Universe::heap()->barrier_set(); |
| 1229 switch (bs->kind()) { | |
| 1230 case BarrierSet::G1SATBCT: | |
| 1231 case BarrierSet::G1SATBCTLogging: | |
| 1232 { | |
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1233 __ pusha(); // push registers (overkill) |
|
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1234 if (c_rarg0 == count) { // On win64 c_rarg0 == rcx |
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|
1235 assert_different_registers(c_rarg1, start); |
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1236 __ mov(c_rarg1, count); |
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|
1237 __ mov(c_rarg0, start); |
|
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1238 } else { |
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|
1239 assert_different_registers(c_rarg0, count); |
|
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1240 __ mov(c_rarg0, start); |
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1241 __ mov(c_rarg1, count); |
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1242 } |
|
1192
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|
1243 __ call_VM_leaf(CAST_FROM_FN_PTR(address, BarrierSet::static_write_ref_array_post), 2); |
| 304 | 1244 __ popa(); |
| 0 | 1245 } |
| 1246 break; | |
| 1247 case BarrierSet::CardTableModRef: | |
| 1248 case BarrierSet::CardTableExtension: | |
| 1249 { | |
| 1250 CardTableModRefBS* ct = (CardTableModRefBS*)bs; | |
| 1251 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); | |
| 1252 | |
| 1253 Label L_loop; | |
|
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|
1254 const Register end = count; |
|
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1255 |
|
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1256 __ leaq(end, Address(start, count, TIMES_OOP, 0)); // end == start+count*oop_size |
|
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1257 __ subptr(end, BytesPerHeapOop); // end - 1 to make inclusive |
|
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1258 __ shrptr(start, CardTableModRefBS::card_shift); |
|
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|
1259 __ shrptr(end, CardTableModRefBS::card_shift); |
|
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1260 __ subptr(end, start); // end --> cards count |
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1261 |
|
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1262 int64_t disp = (int64_t) ct->byte_map_base; |
|
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|
1263 __ mov64(scratch, disp); |
| 304 | 1264 __ addptr(start, scratch); |
| 0 | 1265 __ BIND(L_loop); |
| 1266 __ movb(Address(start, count, Address::times_1), 0); | |
| 304 | 1267 __ decrement(count); |
| 0 | 1268 __ jcc(Assembler::greaterEqual, L_loop); |
| 1269 } | |
|
342
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|
1270 break; |
|
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|
1271 default: |
|
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|
1272 ShouldNotReachHere(); |
|
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|
1273 |
|
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|
1274 } |
|
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|
1275 } |
| 0 | 1276 |
| 405 | 1277 |
| 0 | 1278 // Copy big chunks forward |
| 1279 // | |
| 1280 // Inputs: | |
| 1281 // end_from - source arrays end address | |
| 1282 // end_to - destination array end address | |
| 1283 // qword_count - 64-bits element count, negative | |
| 1284 // to - scratch | |
|
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1285 // L_copy_bytes - entry label |
| 0 | 1286 // L_copy_8_bytes - exit label |
| 1287 // | |
|
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1288 void copy_bytes_forward(Register end_from, Register end_to, |
| 0 | 1289 Register qword_count, Register to, |
|
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1290 Label& L_copy_bytes, Label& L_copy_8_bytes) { |
| 0 | 1291 DEBUG_ONLY(__ stop("enter at entry label, not here")); |
| 1292 Label L_loop; | |
| 1365 | 1293 __ align(OptoLoopAlignment); |
|
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1294 if (UseUnalignedLoadStores) { |
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1295 Label L_end; |
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1296 // Copy 64-bytes per iteration |
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1297 __ BIND(L_loop); |
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1298 if (UseAVX >= 2) { |
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1299 __ vmovdqu(xmm0, Address(end_from, qword_count, Address::times_8, -56)); |
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1300 __ vmovdqu(Address(end_to, qword_count, Address::times_8, -56), xmm0); |
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1301 __ vmovdqu(xmm1, Address(end_from, qword_count, Address::times_8, -24)); |
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1302 __ vmovdqu(Address(end_to, qword_count, Address::times_8, -24), xmm1); |
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1303 } else { |
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1304 __ movdqu(xmm0, Address(end_from, qword_count, Address::times_8, -56)); |
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1305 __ movdqu(Address(end_to, qword_count, Address::times_8, -56), xmm0); |
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1306 __ movdqu(xmm1, Address(end_from, qword_count, Address::times_8, -40)); |
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1307 __ movdqu(Address(end_to, qword_count, Address::times_8, -40), xmm1); |
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1308 __ movdqu(xmm2, Address(end_from, qword_count, Address::times_8, -24)); |
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1309 __ movdqu(Address(end_to, qword_count, Address::times_8, -24), xmm2); |
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1310 __ movdqu(xmm3, Address(end_from, qword_count, Address::times_8, - 8)); |
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1311 __ movdqu(Address(end_to, qword_count, Address::times_8, - 8), xmm3); |
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1312 } |
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1313 __ BIND(L_copy_bytes); |
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1314 __ addptr(qword_count, 8); |
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1315 __ jcc(Assembler::lessEqual, L_loop); |
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1316 __ subptr(qword_count, 4); // sub(8) and add(4) |
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1317 __ jccb(Assembler::greater, L_end); |
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1318 // Copy trailing 32 bytes |
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1319 if (UseAVX >= 2) { |
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1320 __ vmovdqu(xmm0, Address(end_from, qword_count, Address::times_8, -24)); |
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1321 __ vmovdqu(Address(end_to, qword_count, Address::times_8, -24), xmm0); |
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1322 } else { |
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1323 __ movdqu(xmm0, Address(end_from, qword_count, Address::times_8, -24)); |
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1324 __ movdqu(Address(end_to, qword_count, Address::times_8, -24), xmm0); |
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1325 __ movdqu(xmm1, Address(end_from, qword_count, Address::times_8, - 8)); |
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1326 __ movdqu(Address(end_to, qword_count, Address::times_8, - 8), xmm1); |
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1327 } |
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1328 __ addptr(qword_count, 4); |
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1329 __ BIND(L_end); |
|
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1330 if (UseAVX >= 2) { |
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|
1331 // clean upper bits of YMM registers |
|
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|
1332 __ vzeroupper(); |
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|
1333 } |
| 405 | 1334 } else { |
|
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1335 // Copy 32-bytes per iteration |
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1336 __ BIND(L_loop); |
| 405 | 1337 __ movq(to, Address(end_from, qword_count, Address::times_8, -24)); |
| 1338 __ movq(Address(end_to, qword_count, Address::times_8, -24), to); | |
| 1339 __ movq(to, Address(end_from, qword_count, Address::times_8, -16)); | |
| 1340 __ movq(Address(end_to, qword_count, Address::times_8, -16), to); | |
| 1341 __ movq(to, Address(end_from, qword_count, Address::times_8, - 8)); | |
| 1342 __ movq(Address(end_to, qword_count, Address::times_8, - 8), to); | |
| 1343 __ movq(to, Address(end_from, qword_count, Address::times_8, - 0)); | |
| 1344 __ movq(Address(end_to, qword_count, Address::times_8, - 0), to); | |
|
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1345 |
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1346 __ BIND(L_copy_bytes); |
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1347 __ addptr(qword_count, 4); |
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1348 __ jcc(Assembler::lessEqual, L_loop); |
| 405 | 1349 } |
| 304 | 1350 __ subptr(qword_count, 4); |
| 0 | 1351 __ jcc(Assembler::less, L_copy_8_bytes); // Copy trailing qwords |
| 1352 } | |
| 1353 | |
| 1354 // Copy big chunks backward | |
| 1355 // | |
| 1356 // Inputs: | |
| 1357 // from - source arrays address | |
| 1358 // dest - destination array address | |
| 1359 // qword_count - 64-bits element count | |
| 1360 // to - scratch | |
|
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1361 // L_copy_bytes - entry label |
| 0 | 1362 // L_copy_8_bytes - exit label |
| 1363 // | |
|
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1364 void copy_bytes_backward(Register from, Register dest, |
| 0 | 1365 Register qword_count, Register to, |
|
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1366 Label& L_copy_bytes, Label& L_copy_8_bytes) { |
| 0 | 1367 DEBUG_ONLY(__ stop("enter at entry label, not here")); |
| 1368 Label L_loop; | |
| 1365 | 1369 __ align(OptoLoopAlignment); |
|
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1370 if (UseUnalignedLoadStores) { |
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1371 Label L_end; |
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1372 // Copy 64-bytes per iteration |
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1373 __ BIND(L_loop); |
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1374 if (UseAVX >= 2) { |
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1375 __ vmovdqu(xmm0, Address(from, qword_count, Address::times_8, 32)); |
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1376 __ vmovdqu(Address(dest, qword_count, Address::times_8, 32), xmm0); |
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1377 __ vmovdqu(xmm1, Address(from, qword_count, Address::times_8, 0)); |
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1378 __ vmovdqu(Address(dest, qword_count, Address::times_8, 0), xmm1); |
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1379 } else { |
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1380 __ movdqu(xmm0, Address(from, qword_count, Address::times_8, 48)); |
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1381 __ movdqu(Address(dest, qword_count, Address::times_8, 48), xmm0); |
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1382 __ movdqu(xmm1, Address(from, qword_count, Address::times_8, 32)); |
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1383 __ movdqu(Address(dest, qword_count, Address::times_8, 32), xmm1); |
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1384 __ movdqu(xmm2, Address(from, qword_count, Address::times_8, 16)); |
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1385 __ movdqu(Address(dest, qword_count, Address::times_8, 16), xmm2); |
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1386 __ movdqu(xmm3, Address(from, qword_count, Address::times_8, 0)); |
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1387 __ movdqu(Address(dest, qword_count, Address::times_8, 0), xmm3); |
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1388 } |
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1389 __ BIND(L_copy_bytes); |
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1390 __ subptr(qword_count, 8); |
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1391 __ jcc(Assembler::greaterEqual, L_loop); |
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1392 |
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1393 __ addptr(qword_count, 4); // add(8) and sub(4) |
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1394 __ jccb(Assembler::less, L_end); |
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1395 // Copy trailing 32 bytes |
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1396 if (UseAVX >= 2) { |
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1397 __ vmovdqu(xmm0, Address(from, qword_count, Address::times_8, 0)); |
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1398 __ vmovdqu(Address(dest, qword_count, Address::times_8, 0), xmm0); |
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1399 } else { |
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1400 __ movdqu(xmm0, Address(from, qword_count, Address::times_8, 16)); |
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1401 __ movdqu(Address(dest, qword_count, Address::times_8, 16), xmm0); |
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1402 __ movdqu(xmm1, Address(from, qword_count, Address::times_8, 0)); |
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1403 __ movdqu(Address(dest, qword_count, Address::times_8, 0), xmm1); |
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1404 } |
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1405 __ subptr(qword_count, 4); |
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1406 __ BIND(L_end); |
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1407 if (UseAVX >= 2) { |
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1408 // clean upper bits of YMM registers |
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1409 __ vzeroupper(); |
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1410 } |
| 405 | 1411 } else { |
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1412 // Copy 32-bytes per iteration |
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1413 __ BIND(L_loop); |
| 405 | 1414 __ movq(to, Address(from, qword_count, Address::times_8, 24)); |
| 1415 __ movq(Address(dest, qword_count, Address::times_8, 24), to); | |
| 1416 __ movq(to, Address(from, qword_count, Address::times_8, 16)); | |
| 1417 __ movq(Address(dest, qword_count, Address::times_8, 16), to); | |
| 1418 __ movq(to, Address(from, qword_count, Address::times_8, 8)); | |
| 1419 __ movq(Address(dest, qword_count, Address::times_8, 8), to); | |
| 1420 __ movq(to, Address(from, qword_count, Address::times_8, 0)); | |
| 1421 __ movq(Address(dest, qword_count, Address::times_8, 0), to); | |
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1422 |
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1423 __ BIND(L_copy_bytes); |
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1424 __ subptr(qword_count, 4); |
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1425 __ jcc(Assembler::greaterEqual, L_loop); |
| 405 | 1426 } |
| 304 | 1427 __ addptr(qword_count, 4); |
| 0 | 1428 __ jcc(Assembler::greater, L_copy_8_bytes); // Copy trailing qwords |
| 1429 } | |
| 1430 | |
| 1431 | |
| 1432 // Arguments: | |
| 1433 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
| 1434 // ignored | |
| 1435 // name - stub name string | |
| 1436 // | |
| 1437 // Inputs: | |
| 1438 // c_rarg0 - source array address | |
| 1439 // c_rarg1 - destination array address | |
| 1440 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 1441 // | |
| 1442 // If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, | |
| 1443 // we let the hardware handle it. The one to eight bytes within words, | |
| 1444 // dwords or qwords that span cache line boundaries will still be loaded | |
| 1445 // and stored atomically. | |
| 1446 // | |
| 1447 // Side Effects: | |
| 1448 // disjoint_byte_copy_entry is set to the no-overlap entry point | |
| 1449 // used by generate_conjoint_byte_copy(). | |
| 1450 // | |
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1451 address generate_disjoint_byte_copy(bool aligned, address* entry, const char *name) { |
| 0 | 1452 __ align(CodeEntryAlignment); |
| 1453 StubCodeMark mark(this, "StubRoutines", name); | |
| 1454 address start = __ pc(); | |
| 1455 | |
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1456 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; |
| 0 | 1457 Label L_copy_byte, L_exit; |
| 1458 const Register from = rdi; // source array address | |
| 1459 const Register to = rsi; // destination array address | |
| 1460 const Register count = rdx; // elements count | |
| 1461 const Register byte_count = rcx; | |
| 1462 const Register qword_count = count; | |
| 1463 const Register end_from = from; // source array end address | |
| 1464 const Register end_to = to; // destination array end address | |
| 1465 // End pointers are inclusive, and if count is not zero they point | |
| 1466 // to the last unit copied: end_to[0] := end_from[0] | |
| 1467 | |
| 1468 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 1469 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 1470 | |
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1471 if (entry != NULL) { |
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1472 *entry = __ pc(); |
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1473 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1474 BLOCK_COMMENT("Entry:"); |
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1475 } |
| 0 | 1476 |
| 1477 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
| 1478 // r9 and r10 may be used to save non-volatile registers | |
| 1479 | |
| 1480 // 'from', 'to' and 'count' are now valid | |
| 304 | 1481 __ movptr(byte_count, count); |
| 1482 __ shrptr(count, 3); // count => qword_count | |
| 0 | 1483 |
| 1484 // Copy from low to high addresses. Use 'to' as scratch. | |
| 304 | 1485 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
| 1486 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
| 1487 __ negptr(qword_count); // make the count negative | |
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1488 __ jmp(L_copy_bytes); |
| 0 | 1489 |
| 1490 // Copy trailing qwords | |
| 1491 __ BIND(L_copy_8_bytes); | |
| 1492 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
| 1493 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
| 304 | 1494 __ increment(qword_count); |
| 0 | 1495 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 1496 | |
| 1497 // Check for and copy trailing dword | |
| 1498 __ BIND(L_copy_4_bytes); | |
| 304 | 1499 __ testl(byte_count, 4); |
| 0 | 1500 __ jccb(Assembler::zero, L_copy_2_bytes); |
| 1501 __ movl(rax, Address(end_from, 8)); | |
| 1502 __ movl(Address(end_to, 8), rax); | |
| 1503 | |
| 304 | 1504 __ addptr(end_from, 4); |
| 1505 __ addptr(end_to, 4); | |
| 0 | 1506 |
| 1507 // Check for and copy trailing word | |
| 1508 __ BIND(L_copy_2_bytes); | |
| 304 | 1509 __ testl(byte_count, 2); |
| 0 | 1510 __ jccb(Assembler::zero, L_copy_byte); |
| 1511 __ movw(rax, Address(end_from, 8)); | |
| 1512 __ movw(Address(end_to, 8), rax); | |
| 1513 | |
| 304 | 1514 __ addptr(end_from, 2); |
| 1515 __ addptr(end_to, 2); | |
| 0 | 1516 |
| 1517 // Check for and copy trailing byte | |
| 1518 __ BIND(L_copy_byte); | |
| 304 | 1519 __ testl(byte_count, 1); |
| 0 | 1520 __ jccb(Assembler::zero, L_exit); |
| 1521 __ movb(rax, Address(end_from, 8)); | |
| 1522 __ movb(Address(end_to, 8), rax); | |
| 1523 | |
| 1524 __ BIND(L_exit); | |
| 1525 restore_arg_regs(); | |
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1526 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 1527 __ xorptr(rax, rax); // return 0 |
| 0 | 1528 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 1529 __ ret(0); | |
| 1530 | |
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1531 // Copy in multi-bytes chunks |
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1532 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 1533 __ jmp(L_copy_4_bytes); |
| 1534 | |
| 1535 return start; | |
| 1536 } | |
| 1537 | |
| 1538 // Arguments: | |
| 1539 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
| 1540 // ignored | |
| 1541 // name - stub name string | |
| 1542 // | |
| 1543 // Inputs: | |
| 1544 // c_rarg0 - source array address | |
| 1545 // c_rarg1 - destination array address | |
| 1546 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 1547 // | |
| 1548 // If 'from' and/or 'to' are aligned on 4-, 2-, or 1-byte boundaries, | |
| 1549 // we let the hardware handle it. The one to eight bytes within words, | |
| 1550 // dwords or qwords that span cache line boundaries will still be loaded | |
| 1551 // and stored atomically. | |
| 1552 // | |
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1553 address generate_conjoint_byte_copy(bool aligned, address nooverlap_target, |
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1554 address* entry, const char *name) { |
| 0 | 1555 __ align(CodeEntryAlignment); |
| 1556 StubCodeMark mark(this, "StubRoutines", name); | |
| 1557 address start = __ pc(); | |
| 1558 | |
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1559 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes, L_copy_2_bytes; |
| 0 | 1560 const Register from = rdi; // source array address |
| 1561 const Register to = rsi; // destination array address | |
| 1562 const Register count = rdx; // elements count | |
| 1563 const Register byte_count = rcx; | |
| 1564 const Register qword_count = count; | |
| 1565 | |
| 1566 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 1567 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 1568 | |
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1569 if (entry != NULL) { |
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1570 *entry = __ pc(); |
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1571 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1572 BLOCK_COMMENT("Entry:"); |
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1573 } |
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1574 |
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1575 array_overlap_test(nooverlap_target, Address::times_1); |
| 0 | 1576 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
| 1577 // r9 and r10 may be used to save non-volatile registers | |
| 1578 | |
| 1579 // 'from', 'to' and 'count' are now valid | |
| 304 | 1580 __ movptr(byte_count, count); |
| 1581 __ shrptr(count, 3); // count => qword_count | |
| 0 | 1582 |
| 1583 // Copy from high to low addresses. | |
| 1584 | |
| 1585 // Check for and copy trailing byte | |
| 304 | 1586 __ testl(byte_count, 1); |
| 0 | 1587 __ jcc(Assembler::zero, L_copy_2_bytes); |
| 1588 __ movb(rax, Address(from, byte_count, Address::times_1, -1)); | |
| 1589 __ movb(Address(to, byte_count, Address::times_1, -1), rax); | |
| 304 | 1590 __ decrement(byte_count); // Adjust for possible trailing word |
| 0 | 1591 |
| 1592 // Check for and copy trailing word | |
| 1593 __ BIND(L_copy_2_bytes); | |
| 304 | 1594 __ testl(byte_count, 2); |
| 0 | 1595 __ jcc(Assembler::zero, L_copy_4_bytes); |
| 1596 __ movw(rax, Address(from, byte_count, Address::times_1, -2)); | |
| 1597 __ movw(Address(to, byte_count, Address::times_1, -2), rax); | |
| 1598 | |
| 1599 // Check for and copy trailing dword | |
| 1600 __ BIND(L_copy_4_bytes); | |
| 304 | 1601 __ testl(byte_count, 4); |
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1602 __ jcc(Assembler::zero, L_copy_bytes); |
| 0 | 1603 __ movl(rax, Address(from, qword_count, Address::times_8)); |
| 1604 __ movl(Address(to, qword_count, Address::times_8), rax); | |
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1605 __ jmp(L_copy_bytes); |
| 0 | 1606 |
| 1607 // Copy trailing qwords | |
| 1608 __ BIND(L_copy_8_bytes); | |
| 1609 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
| 1610 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
| 304 | 1611 __ decrement(qword_count); |
| 0 | 1612 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 1613 | |
| 1614 restore_arg_regs(); | |
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1615 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 1616 __ xorptr(rax, rax); // return 0 |
| 0 | 1617 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 1618 __ ret(0); | |
| 1619 | |
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1620 // Copy in multi-bytes chunks |
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1621 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 1622 |
| 1623 restore_arg_regs(); | |
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1624 inc_counter_np(SharedRuntime::_jbyte_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 1625 __ xorptr(rax, rax); // return 0 |
| 0 | 1626 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 1627 __ ret(0); | |
| 1628 | |
| 1629 return start; | |
| 1630 } | |
| 1631 | |
| 1632 // Arguments: | |
| 1633 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
| 1634 // ignored | |
| 1635 // name - stub name string | |
| 1636 // | |
| 1637 // Inputs: | |
| 1638 // c_rarg0 - source array address | |
| 1639 // c_rarg1 - destination array address | |
| 1640 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 1641 // | |
| 1642 // If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we | |
| 1643 // let the hardware handle it. The two or four words within dwords | |
| 1644 // or qwords that span cache line boundaries will still be loaded | |
| 1645 // and stored atomically. | |
| 1646 // | |
| 1647 // Side Effects: | |
| 1648 // disjoint_short_copy_entry is set to the no-overlap entry point | |
| 1649 // used by generate_conjoint_short_copy(). | |
| 1650 // | |
|
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1651 address generate_disjoint_short_copy(bool aligned, address *entry, const char *name) { |
| 0 | 1652 __ align(CodeEntryAlignment); |
| 1653 StubCodeMark mark(this, "StubRoutines", name); | |
| 1654 address start = __ pc(); | |
| 1655 | |
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1656 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes,L_copy_2_bytes,L_exit; |
| 0 | 1657 const Register from = rdi; // source array address |
| 1658 const Register to = rsi; // destination array address | |
| 1659 const Register count = rdx; // elements count | |
| 1660 const Register word_count = rcx; | |
| 1661 const Register qword_count = count; | |
| 1662 const Register end_from = from; // source array end address | |
| 1663 const Register end_to = to; // destination array end address | |
| 1664 // End pointers are inclusive, and if count is not zero they point | |
| 1665 // to the last unit copied: end_to[0] := end_from[0] | |
| 1666 | |
| 1667 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 1668 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 1669 | |
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1670 if (entry != NULL) { |
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1671 *entry = __ pc(); |
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1672 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1673 BLOCK_COMMENT("Entry:"); |
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1674 } |
| 0 | 1675 |
| 1676 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
| 1677 // r9 and r10 may be used to save non-volatile registers | |
| 1678 | |
| 1679 // 'from', 'to' and 'count' are now valid | |
| 304 | 1680 __ movptr(word_count, count); |
| 1681 __ shrptr(count, 2); // count => qword_count | |
| 0 | 1682 |
| 1683 // Copy from low to high addresses. Use 'to' as scratch. | |
| 304 | 1684 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
| 1685 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
| 1686 __ negptr(qword_count); | |
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1687 __ jmp(L_copy_bytes); |
| 0 | 1688 |
| 1689 // Copy trailing qwords | |
| 1690 __ BIND(L_copy_8_bytes); | |
| 1691 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
| 1692 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
| 304 | 1693 __ increment(qword_count); |
| 0 | 1694 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 1695 | |
| 1696 // Original 'dest' is trashed, so we can't use it as a | |
| 1697 // base register for a possible trailing word copy | |
| 1698 | |
| 1699 // Check for and copy trailing dword | |
| 1700 __ BIND(L_copy_4_bytes); | |
| 304 | 1701 __ testl(word_count, 2); |
| 0 | 1702 __ jccb(Assembler::zero, L_copy_2_bytes); |
| 1703 __ movl(rax, Address(end_from, 8)); | |
| 1704 __ movl(Address(end_to, 8), rax); | |
| 1705 | |
| 304 | 1706 __ addptr(end_from, 4); |
| 1707 __ addptr(end_to, 4); | |
| 0 | 1708 |
| 1709 // Check for and copy trailing word | |
| 1710 __ BIND(L_copy_2_bytes); | |
| 304 | 1711 __ testl(word_count, 1); |
| 0 | 1712 __ jccb(Assembler::zero, L_exit); |
| 1713 __ movw(rax, Address(end_from, 8)); | |
| 1714 __ movw(Address(end_to, 8), rax); | |
| 1715 | |
| 1716 __ BIND(L_exit); | |
| 1717 restore_arg_regs(); | |
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1718 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 1719 __ xorptr(rax, rax); // return 0 |
| 0 | 1720 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 1721 __ ret(0); | |
| 1722 | |
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1723 // Copy in multi-bytes chunks |
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1724 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 1725 __ jmp(L_copy_4_bytes); |
| 1726 | |
| 1727 return start; | |
| 1728 } | |
| 1729 | |
| 1763 | 1730 address generate_fill(BasicType t, bool aligned, const char *name) { |
| 1731 __ align(CodeEntryAlignment); | |
| 1732 StubCodeMark mark(this, "StubRoutines", name); | |
| 1733 address start = __ pc(); | |
| 1734 | |
| 1735 BLOCK_COMMENT("Entry:"); | |
| 1736 | |
| 1737 const Register to = c_rarg0; // source array address | |
| 1738 const Register value = c_rarg1; // value | |
| 1739 const Register count = c_rarg2; // elements count | |
| 1740 | |
| 1741 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 1742 | |
| 1743 __ generate_fill(t, aligned, to, value, count, rax, xmm0); | |
| 1744 | |
| 1745 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
| 1746 __ ret(0); | |
| 1747 return start; | |
| 1748 } | |
| 1749 | |
| 0 | 1750 // Arguments: |
| 1751 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
| 1752 // ignored | |
| 1753 // name - stub name string | |
| 1754 // | |
| 1755 // Inputs: | |
| 1756 // c_rarg0 - source array address | |
| 1757 // c_rarg1 - destination array address | |
| 1758 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 1759 // | |
| 1760 // If 'from' and/or 'to' are aligned on 4- or 2-byte boundaries, we | |
| 1761 // let the hardware handle it. The two or four words within dwords | |
| 1762 // or qwords that span cache line boundaries will still be loaded | |
| 1763 // and stored atomically. | |
| 1764 // | |
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1765 address generate_conjoint_short_copy(bool aligned, address nooverlap_target, |
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1766 address *entry, const char *name) { |
| 0 | 1767 __ align(CodeEntryAlignment); |
| 1768 StubCodeMark mark(this, "StubRoutines", name); | |
| 1769 address start = __ pc(); | |
| 1770 | |
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1771 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes; |
| 0 | 1772 const Register from = rdi; // source array address |
| 1773 const Register to = rsi; // destination array address | |
| 1774 const Register count = rdx; // elements count | |
| 1775 const Register word_count = rcx; | |
| 1776 const Register qword_count = count; | |
| 1777 | |
| 1778 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 1779 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 1780 | |
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1781 if (entry != NULL) { |
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1782 *entry = __ pc(); |
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1783 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1784 BLOCK_COMMENT("Entry:"); |
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1785 } |
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1786 |
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1787 array_overlap_test(nooverlap_target, Address::times_2); |
| 0 | 1788 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
| 1789 // r9 and r10 may be used to save non-volatile registers | |
| 1790 | |
| 1791 // 'from', 'to' and 'count' are now valid | |
| 304 | 1792 __ movptr(word_count, count); |
| 1793 __ shrptr(count, 2); // count => qword_count | |
| 0 | 1794 |
| 1795 // Copy from high to low addresses. Use 'to' as scratch. | |
| 1796 | |
| 1797 // Check for and copy trailing word | |
| 304 | 1798 __ testl(word_count, 1); |
| 0 | 1799 __ jccb(Assembler::zero, L_copy_4_bytes); |
| 1800 __ movw(rax, Address(from, word_count, Address::times_2, -2)); | |
| 1801 __ movw(Address(to, word_count, Address::times_2, -2), rax); | |
| 1802 | |
| 1803 // Check for and copy trailing dword | |
| 1804 __ BIND(L_copy_4_bytes); | |
| 304 | 1805 __ testl(word_count, 2); |
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1806 __ jcc(Assembler::zero, L_copy_bytes); |
| 0 | 1807 __ movl(rax, Address(from, qword_count, Address::times_8)); |
| 1808 __ movl(Address(to, qword_count, Address::times_8), rax); | |
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1809 __ jmp(L_copy_bytes); |
| 0 | 1810 |
| 1811 // Copy trailing qwords | |
| 1812 __ BIND(L_copy_8_bytes); | |
| 1813 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
| 1814 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
| 304 | 1815 __ decrement(qword_count); |
| 0 | 1816 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 1817 | |
| 1818 restore_arg_regs(); | |
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1819 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 1820 __ xorptr(rax, rax); // return 0 |
| 0 | 1821 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 1822 __ ret(0); | |
| 1823 | |
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1824 // Copy in multi-bytes chunks |
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1825 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 1826 |
| 1827 restore_arg_regs(); | |
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1828 inc_counter_np(SharedRuntime::_jshort_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 1829 __ xorptr(rax, rax); // return 0 |
| 0 | 1830 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 1831 __ ret(0); | |
| 1832 | |
| 1833 return start; | |
| 1834 } | |
| 1835 | |
| 1836 // Arguments: | |
| 1837 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
| 1838 // ignored | |
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1839 // is_oop - true => oop array, so generate store check code |
| 0 | 1840 // name - stub name string |
| 1841 // | |
| 1842 // Inputs: | |
| 1843 // c_rarg0 - source array address | |
| 1844 // c_rarg1 - destination array address | |
| 1845 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 1846 // | |
| 1847 // If 'from' and/or 'to' are aligned on 4-byte boundaries, we let | |
| 1848 // the hardware handle it. The two dwords within qwords that span | |
| 1849 // cache line boundaries will still be loaded and stored atomicly. | |
| 1850 // | |
| 1851 // Side Effects: | |
| 1852 // disjoint_int_copy_entry is set to the no-overlap entry point | |
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1853 // used by generate_conjoint_int_oop_copy(). |
| 0 | 1854 // |
| 2324 | 1855 address generate_disjoint_int_oop_copy(bool aligned, bool is_oop, address* entry, |
| 1856 const char *name, bool dest_uninitialized = false) { | |
| 0 | 1857 __ align(CodeEntryAlignment); |
| 1858 StubCodeMark mark(this, "StubRoutines", name); | |
| 1859 address start = __ pc(); | |
| 1860 | |
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1861 Label L_copy_bytes, L_copy_8_bytes, L_copy_4_bytes, L_exit; |
| 0 | 1862 const Register from = rdi; // source array address |
| 1863 const Register to = rsi; // destination array address | |
| 1864 const Register count = rdx; // elements count | |
| 1865 const Register dword_count = rcx; | |
| 1866 const Register qword_count = count; | |
| 1867 const Register end_from = from; // source array end address | |
| 1868 const Register end_to = to; // destination array end address | |
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1869 const Register saved_to = r11; // saved destination array address |
| 0 | 1870 // End pointers are inclusive, and if count is not zero they point |
| 1871 // to the last unit copied: end_to[0] := end_from[0] | |
| 1872 | |
| 1873 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 1874 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 1875 | |
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1876 if (entry != NULL) { |
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1877 *entry = __ pc(); |
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1878 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1879 BLOCK_COMMENT("Entry:"); |
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1880 } |
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1881 |
| 0 | 1882 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
| 1883 // r9 and r10 may be used to save non-volatile registers | |
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1884 if (is_oop) { |
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1885 __ movq(saved_to, to); |
| 2324 | 1886 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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1887 } |
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1888 |
| 0 | 1889 // 'from', 'to' and 'count' are now valid |
| 304 | 1890 __ movptr(dword_count, count); |
| 1891 __ shrptr(count, 1); // count => qword_count | |
| 0 | 1892 |
| 1893 // Copy from low to high addresses. Use 'to' as scratch. | |
| 304 | 1894 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
| 1895 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
| 1896 __ negptr(qword_count); | |
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1897 __ jmp(L_copy_bytes); |
| 0 | 1898 |
| 1899 // Copy trailing qwords | |
| 1900 __ BIND(L_copy_8_bytes); | |
| 1901 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
| 1902 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
| 304 | 1903 __ increment(qword_count); |
| 0 | 1904 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 1905 | |
| 1906 // Check for and copy trailing dword | |
| 1907 __ BIND(L_copy_4_bytes); | |
| 304 | 1908 __ testl(dword_count, 1); // Only byte test since the value is 0 or 1 |
| 0 | 1909 __ jccb(Assembler::zero, L_exit); |
| 1910 __ movl(rax, Address(end_from, 8)); | |
| 1911 __ movl(Address(end_to, 8), rax); | |
| 1912 | |
| 1913 __ BIND(L_exit); | |
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1914 if (is_oop) { |
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1915 gen_write_ref_array_post_barrier(saved_to, dword_count, rax); |
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1916 } |
| 0 | 1917 restore_arg_regs(); |
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1918 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 1919 __ xorptr(rax, rax); // return 0 |
| 0 | 1920 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 1921 __ ret(0); | |
| 1922 | |
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1923 // Copy in multi-bytes chunks |
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1924 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 1925 __ jmp(L_copy_4_bytes); |
| 1926 | |
| 1927 return start; | |
| 1928 } | |
| 1929 | |
| 1930 // Arguments: | |
| 1931 // aligned - true => Input and output aligned on a HeapWord == 8-byte boundary | |
| 1932 // ignored | |
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1933 // is_oop - true => oop array, so generate store check code |
| 0 | 1934 // name - stub name string |
| 1935 // | |
| 1936 // Inputs: | |
| 1937 // c_rarg0 - source array address | |
| 1938 // c_rarg1 - destination array address | |
| 1939 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 1940 // | |
| 1941 // If 'from' and/or 'to' are aligned on 4-byte boundaries, we let | |
| 1942 // the hardware handle it. The two dwords within qwords that span | |
| 1943 // cache line boundaries will still be loaded and stored atomicly. | |
| 1944 // | |
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1945 address generate_conjoint_int_oop_copy(bool aligned, bool is_oop, address nooverlap_target, |
| 2324 | 1946 address *entry, const char *name, |
| 1947 bool dest_uninitialized = false) { | |
| 0 | 1948 __ align(CodeEntryAlignment); |
| 1949 StubCodeMark mark(this, "StubRoutines", name); | |
| 1950 address start = __ pc(); | |
| 1951 | |
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1952 Label L_copy_bytes, L_copy_8_bytes, L_copy_2_bytes, L_exit; |
| 0 | 1953 const Register from = rdi; // source array address |
| 1954 const Register to = rsi; // destination array address | |
| 1955 const Register count = rdx; // elements count | |
| 1956 const Register dword_count = rcx; | |
| 1957 const Register qword_count = count; | |
| 1958 | |
| 1959 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 1960 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 1961 | |
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1962 if (entry != NULL) { |
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1963 *entry = __ pc(); |
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1964 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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1965 BLOCK_COMMENT("Entry:"); |
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1966 } |
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1967 |
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1968 array_overlap_test(nooverlap_target, Address::times_4); |
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1969 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
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1970 // r9 and r10 may be used to save non-volatile registers |
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1971 |
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1972 if (is_oop) { |
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1973 // no registers are destroyed by this call |
| 2324 | 1974 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
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1975 } |
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1976 |
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1977 assert_clean_int(count, rax); // Make sure 'count' is clean int. |
| 0 | 1978 // 'from', 'to' and 'count' are now valid |
| 304 | 1979 __ movptr(dword_count, count); |
| 1980 __ shrptr(count, 1); // count => qword_count | |
| 0 | 1981 |
| 1982 // Copy from high to low addresses. Use 'to' as scratch. | |
| 1983 | |
| 1984 // Check for and copy trailing dword | |
| 304 | 1985 __ testl(dword_count, 1); |
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1986 __ jcc(Assembler::zero, L_copy_bytes); |
| 0 | 1987 __ movl(rax, Address(from, dword_count, Address::times_4, -4)); |
| 1988 __ movl(Address(to, dword_count, Address::times_4, -4), rax); | |
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1989 __ jmp(L_copy_bytes); |
| 0 | 1990 |
| 1991 // Copy trailing qwords | |
| 1992 __ BIND(L_copy_8_bytes); | |
| 1993 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
| 1994 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
| 304 | 1995 __ decrement(qword_count); |
| 0 | 1996 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 1997 | |
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1998 if (is_oop) { |
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1999 __ jmp(L_exit); |
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2000 } |
| 0 | 2001 restore_arg_regs(); |
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2002 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 2003 __ xorptr(rax, rax); // return 0 |
| 0 | 2004 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2005 __ ret(0); | |
| 2006 | |
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2007 // Copy in multi-bytes chunks |
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2008 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 2009 |
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2010 __ BIND(L_exit); |
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2011 if (is_oop) { |
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2012 gen_write_ref_array_post_barrier(to, dword_count, rax); |
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2013 } |
| 0 | 2014 restore_arg_regs(); |
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2015 inc_counter_np(SharedRuntime::_jint_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 2016 __ xorptr(rax, rax); // return 0 |
| 0 | 2017 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2018 __ ret(0); | |
| 2019 | |
| 2020 return start; | |
| 2021 } | |
| 2022 | |
| 2023 // Arguments: | |
| 2024 // aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes | |
| 2025 // ignored | |
| 2026 // is_oop - true => oop array, so generate store check code | |
| 2027 // name - stub name string | |
| 2028 // | |
| 2029 // Inputs: | |
| 2030 // c_rarg0 - source array address | |
| 2031 // c_rarg1 - destination array address | |
| 2032 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 2033 // | |
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2034 // Side Effects: |
| 0 | 2035 // disjoint_oop_copy_entry or disjoint_long_copy_entry is set to the |
| 2036 // no-overlap entry point used by generate_conjoint_long_oop_copy(). | |
| 2037 // | |
| 2324 | 2038 address generate_disjoint_long_oop_copy(bool aligned, bool is_oop, address *entry, |
| 2039 const char *name, bool dest_uninitialized = false) { | |
| 0 | 2040 __ align(CodeEntryAlignment); |
| 2041 StubCodeMark mark(this, "StubRoutines", name); | |
| 2042 address start = __ pc(); | |
| 2043 | |
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2044 Label L_copy_bytes, L_copy_8_bytes, L_exit; |
| 0 | 2045 const Register from = rdi; // source array address |
| 2046 const Register to = rsi; // destination array address | |
| 2047 const Register qword_count = rdx; // elements count | |
| 2048 const Register end_from = from; // source array end address | |
| 2049 const Register end_to = rcx; // destination array end address | |
| 2050 const Register saved_to = to; | |
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2051 const Register saved_count = r11; |
| 0 | 2052 // End pointers are inclusive, and if count is not zero they point |
| 2053 // to the last unit copied: end_to[0] := end_from[0] | |
| 2054 | |
| 2055 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 2056 // Save no-overlap entry point for generate_conjoint_long_oop_copy() | |
| 2057 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 2058 | |
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2059 if (entry != NULL) { |
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2060 *entry = __ pc(); |
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2061 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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2062 BLOCK_COMMENT("Entry:"); |
| 0 | 2063 } |
| 2064 | |
| 2065 setup_arg_regs(); // from => rdi, to => rsi, count => rdx | |
| 2066 // r9 and r10 may be used to save non-volatile registers | |
| 2067 // 'from', 'to' and 'qword_count' are now valid | |
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2068 if (is_oop) { |
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2069 // Save to and count for store barrier |
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2070 __ movptr(saved_count, qword_count); |
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2071 // no registers are destroyed by this call |
| 2324 | 2072 gen_write_ref_array_pre_barrier(to, qword_count, dest_uninitialized); |
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2073 } |
| 0 | 2074 |
| 2075 // Copy from low to high addresses. Use 'to' as scratch. | |
| 304 | 2076 __ lea(end_from, Address(from, qword_count, Address::times_8, -8)); |
| 2077 __ lea(end_to, Address(to, qword_count, Address::times_8, -8)); | |
| 2078 __ negptr(qword_count); | |
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2079 __ jmp(L_copy_bytes); |
| 0 | 2080 |
| 2081 // Copy trailing qwords | |
| 2082 __ BIND(L_copy_8_bytes); | |
| 2083 __ movq(rax, Address(end_from, qword_count, Address::times_8, 8)); | |
| 2084 __ movq(Address(end_to, qword_count, Address::times_8, 8), rax); | |
| 304 | 2085 __ increment(qword_count); |
| 0 | 2086 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 2087 | |
| 2088 if (is_oop) { | |
| 2089 __ jmp(L_exit); | |
| 2090 } else { | |
| 2091 restore_arg_regs(); | |
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2092 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 2093 __ xorptr(rax, rax); // return 0 |
| 0 | 2094 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2095 __ ret(0); | |
| 2096 } | |
| 2097 | |
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2098 // Copy in multi-bytes chunks |
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2099 copy_bytes_forward(end_from, end_to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 2100 |
| 2101 if (is_oop) { | |
| 2102 __ BIND(L_exit); | |
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2103 gen_write_ref_array_post_barrier(saved_to, saved_count, rax); |
| 0 | 2104 } |
| 2105 restore_arg_regs(); | |
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2106 if (is_oop) { |
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2107 inc_counter_np(SharedRuntime::_oop_array_copy_ctr); // Update counter after rscratch1 is free |
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2108 } else { |
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2109 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
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2110 } |
| 304 | 2111 __ xorptr(rax, rax); // return 0 |
| 0 | 2112 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2113 __ ret(0); | |
| 2114 | |
| 2115 return start; | |
| 2116 } | |
| 2117 | |
| 2118 // Arguments: | |
| 2119 // aligned - true => Input and output aligned on a HeapWord boundary == 8 bytes | |
| 2120 // ignored | |
| 2121 // is_oop - true => oop array, so generate store check code | |
| 2122 // name - stub name string | |
| 2123 // | |
| 2124 // Inputs: | |
| 2125 // c_rarg0 - source array address | |
| 2126 // c_rarg1 - destination array address | |
| 2127 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 2128 // | |
| 2324 | 2129 address generate_conjoint_long_oop_copy(bool aligned, bool is_oop, |
| 2130 address nooverlap_target, address *entry, | |
| 2131 const char *name, bool dest_uninitialized = false) { | |
| 0 | 2132 __ align(CodeEntryAlignment); |
| 2133 StubCodeMark mark(this, "StubRoutines", name); | |
| 2134 address start = __ pc(); | |
| 2135 | |
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2136 Label L_copy_bytes, L_copy_8_bytes, L_exit; |
| 0 | 2137 const Register from = rdi; // source array address |
| 2138 const Register to = rsi; // destination array address | |
| 2139 const Register qword_count = rdx; // elements count | |
| 2140 const Register saved_count = rcx; | |
| 2141 | |
| 2142 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 2143 assert_clean_int(c_rarg2, rax); // Make sure 'count' is clean int. | |
| 2144 | |
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2145 if (entry != NULL) { |
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2146 *entry = __ pc(); |
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2147 // caller can pass a 64-bit byte count here (from Unsafe.copyMemory) |
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2148 BLOCK_COMMENT("Entry:"); |
| 0 | 2149 } |
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2150 |
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2151 array_overlap_test(nooverlap_target, Address::times_8); |
| 0 | 2152 setup_arg_regs(); // from => rdi, to => rsi, count => rdx |
| 2153 // r9 and r10 may be used to save non-volatile registers | |
| 2154 // 'from', 'to' and 'qword_count' are now valid | |
| 2155 if (is_oop) { | |
| 2156 // Save to and count for store barrier | |
| 304 | 2157 __ movptr(saved_count, qword_count); |
| 0 | 2158 // No registers are destroyed by this call |
| 2324 | 2159 gen_write_ref_array_pre_barrier(to, saved_count, dest_uninitialized); |
| 0 | 2160 } |
| 2161 | |
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2162 __ jmp(L_copy_bytes); |
| 0 | 2163 |
| 2164 // Copy trailing qwords | |
| 2165 __ BIND(L_copy_8_bytes); | |
| 2166 __ movq(rax, Address(from, qword_count, Address::times_8, -8)); | |
| 2167 __ movq(Address(to, qword_count, Address::times_8, -8), rax); | |
| 304 | 2168 __ decrement(qword_count); |
| 0 | 2169 __ jcc(Assembler::notZero, L_copy_8_bytes); |
| 2170 | |
| 2171 if (is_oop) { | |
| 2172 __ jmp(L_exit); | |
| 2173 } else { | |
| 2174 restore_arg_regs(); | |
|
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2175 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
| 304 | 2176 __ xorptr(rax, rax); // return 0 |
| 0 | 2177 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2178 __ ret(0); | |
| 2179 } | |
| 2180 | |
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2181 // Copy in multi-bytes chunks |
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2182 copy_bytes_backward(from, to, qword_count, rax, L_copy_bytes, L_copy_8_bytes); |
| 0 | 2183 |
| 2184 if (is_oop) { | |
| 2185 __ BIND(L_exit); | |
|
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2186 gen_write_ref_array_post_barrier(to, saved_count, rax); |
| 0 | 2187 } |
| 2188 restore_arg_regs(); | |
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2189 if (is_oop) { |
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2190 inc_counter_np(SharedRuntime::_oop_array_copy_ctr); // Update counter after rscratch1 is free |
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2191 } else { |
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2192 inc_counter_np(SharedRuntime::_jlong_array_copy_ctr); // Update counter after rscratch1 is free |
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2193 } |
| 304 | 2194 __ xorptr(rax, rax); // return 0 |
| 0 | 2195 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2196 __ ret(0); | |
| 2197 | |
| 2198 return start; | |
| 2199 } | |
| 2200 | |
| 2201 | |
| 2202 // Helper for generating a dynamic type check. | |
| 2203 // Smashes no registers. | |
| 2204 void generate_type_check(Register sub_klass, | |
| 2205 Register super_check_offset, | |
| 2206 Register super_klass, | |
| 2207 Label& L_success) { | |
| 2208 assert_different_registers(sub_klass, super_check_offset, super_klass); | |
| 2209 | |
| 2210 BLOCK_COMMENT("type_check:"); | |
| 2211 | |
| 2212 Label L_miss; | |
| 2213 | |
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2214 __ check_klass_subtype_fast_path(sub_klass, super_klass, noreg, &L_success, &L_miss, NULL, |
|
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2215 super_check_offset); |
|
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2216 __ check_klass_subtype_slow_path(sub_klass, super_klass, noreg, noreg, &L_success, NULL); |
| 0 | 2217 |
| 2218 // Fall through on failure! | |
| 2219 __ BIND(L_miss); | |
| 2220 } | |
| 2221 | |
| 2222 // | |
| 2223 // Generate checkcasting array copy stub | |
| 2224 // | |
| 2225 // Input: | |
| 2226 // c_rarg0 - source array address | |
| 2227 // c_rarg1 - destination array address | |
| 2228 // c_rarg2 - element count, treated as ssize_t, can be zero | |
| 2229 // c_rarg3 - size_t ckoff (super_check_offset) | |
| 2230 // not Win64 | |
| 2231 // c_rarg4 - oop ckval (super_klass) | |
| 2232 // Win64 | |
| 2233 // rsp+40 - oop ckval (super_klass) | |
| 2234 // | |
| 2235 // Output: | |
| 2236 // rax == 0 - success | |
| 2237 // rax == -1^K - failure, where K is partial transfer count | |
| 2238 // | |
| 2324 | 2239 address generate_checkcast_copy(const char *name, address *entry, |
| 2240 bool dest_uninitialized = false) { | |
| 0 | 2241 |
| 2242 Label L_load_element, L_store_element, L_do_card_marks, L_done; | |
| 2243 | |
| 2244 // Input registers (after setup_arg_regs) | |
| 2245 const Register from = rdi; // source array address | |
| 2246 const Register to = rsi; // destination array address | |
| 2247 const Register length = rdx; // elements count | |
| 2248 const Register ckoff = rcx; // super_check_offset | |
| 2249 const Register ckval = r8; // super_klass | |
| 2250 | |
| 2251 // Registers used as temps (r13, r14 are save-on-entry) | |
| 2252 const Register end_from = from; // source array end address | |
| 2253 const Register end_to = r13; // destination array end address | |
| 2254 const Register count = rdx; // -(count_remaining) | |
| 2255 const Register r14_length = r14; // saved copy of length | |
| 2256 // End pointers are inclusive, and if length is not zero they point | |
| 2257 // to the last unit copied: end_to[0] := end_from[0] | |
| 2258 | |
| 2259 const Register rax_oop = rax; // actual oop copied | |
| 2260 const Register r11_klass = r11; // oop._klass | |
| 2261 | |
| 2262 //--------------------------------------------------------------- | |
| 2263 // Assembler stub will be used for this call to arraycopy | |
| 2264 // if the two arrays are subtypes of Object[] but the | |
| 2265 // destination array type is not equal to or a supertype | |
| 2266 // of the source type. Each element must be separately | |
| 2267 // checked. | |
| 2268 | |
| 2269 __ align(CodeEntryAlignment); | |
| 2270 StubCodeMark mark(this, "StubRoutines", name); | |
| 2271 address start = __ pc(); | |
| 2272 | |
| 2273 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 2274 | |
| 2275 #ifdef ASSERT | |
| 2276 // caller guarantees that the arrays really are different | |
| 2277 // otherwise, we would have to make conjoint checks | |
| 2278 { Label L; | |
|
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|
2279 array_overlap_test(L, TIMES_OOP); |
| 0 | 2280 __ stop("checkcast_copy within a single array"); |
| 2281 __ bind(L); | |
| 2282 } | |
| 2283 #endif //ASSERT | |
| 2284 | |
| 2285 setup_arg_regs(4); // from => rdi, to => rsi, length => rdx | |
| 2286 // ckoff => rcx, ckval => r8 | |
| 2287 // r9 and r10 may be used to save non-volatile registers | |
| 2288 #ifdef _WIN64 | |
| 2289 // last argument (#4) is on stack on Win64 | |
|
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|
2290 __ movptr(ckval, Address(rsp, 6 * wordSize)); |
| 0 | 2291 #endif |
| 2292 | |
|
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|
2293 // Caller of this entry point must set up the argument registers. |
|
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|
2294 if (entry != NULL) { |
|
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|
2295 *entry = __ pc(); |
|
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|
2296 BLOCK_COMMENT("Entry:"); |
|
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|
2297 } |
|
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|
2298 |
|
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|
2299 // allocate spill slots for r13, r14 |
|
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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|
2300 enum { |
|
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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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|
2301 saved_r13_offset, |
|
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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|
2302 saved_r14_offset, |
|
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|
2303 saved_rbp_offset |
|
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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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|
2304 }; |
|
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diff
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|
2305 __ subptr(rsp, saved_rbp_offset * wordSize); |
|
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|
2306 __ movptr(Address(rsp, saved_r13_offset * wordSize), r13); |
|
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|
2307 __ movptr(Address(rsp, saved_r14_offset * wordSize), r14); |
|
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|
2308 |
| 0 | 2309 // check that int operands are properly extended to size_t |
| 2310 assert_clean_int(length, rax); | |
| 2311 assert_clean_int(ckoff, rax); | |
| 2312 | |
| 2313 #ifdef ASSERT | |
| 2314 BLOCK_COMMENT("assert consistent ckoff/ckval"); | |
| 2315 // The ckoff and ckval must be mutually consistent, | |
| 2316 // even though caller generates both. | |
| 2317 { Label L; | |
|
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changeset
|
2318 int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
| 0 | 2319 __ cmpl(ckoff, Address(ckval, sco_offset)); |
| 2320 __ jcc(Assembler::equal, L); | |
| 2321 __ stop("super_check_offset inconsistent"); | |
| 2322 __ bind(L); | |
| 2323 } | |
| 2324 #endif //ASSERT | |
| 2325 | |
| 2326 // Loop-invariant addresses. They are exclusive end pointers. | |
|
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|
2327 Address end_from_addr(from, length, TIMES_OOP, 0); |
|
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|
2328 Address end_to_addr(to, length, TIMES_OOP, 0); |
| 0 | 2329 // Loop-variant addresses. They assume post-incremented count < 0. |
|
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2330 Address from_element_addr(end_from, count, TIMES_OOP, 0); |
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|
2331 Address to_element_addr(end_to, count, TIMES_OOP, 0); |
| 0 | 2332 |
| 2324 | 2333 gen_write_ref_array_pre_barrier(to, count, dest_uninitialized); |
| 0 | 2334 |
| 2335 // Copy from low to high addresses, indexed from the end of each array. | |
| 304 | 2336 __ lea(end_from, end_from_addr); |
| 2337 __ lea(end_to, end_to_addr); | |
| 2338 __ movptr(r14_length, length); // save a copy of the length | |
| 2339 assert(length == count, ""); // else fix next line: | |
| 2340 __ negptr(count); // negate and test the length | |
| 0 | 2341 __ jcc(Assembler::notZero, L_load_element); |
| 2342 | |
| 2343 // Empty array: Nothing to do. | |
| 304 | 2344 __ xorptr(rax, rax); // return 0 on (trivial) success |
| 0 | 2345 __ jmp(L_done); |
| 2346 | |
| 2347 // ======== begin loop ======== | |
| 2348 // (Loop is rotated; its entry is L_load_element.) | |
| 2349 // Loop control: | |
| 2350 // for (count = -count; count != 0; count++) | |
| 2351 // Base pointers src, dst are biased by 8*(count-1),to last element. | |
| 1365 | 2352 __ align(OptoLoopAlignment); |
| 0 | 2353 |
| 2354 __ BIND(L_store_element); | |
|
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|
2355 __ store_heap_oop(to_element_addr, rax_oop); // store the oop |
| 304 | 2356 __ increment(count); // increment the count toward zero |
| 0 | 2357 __ jcc(Assembler::zero, L_do_card_marks); |
| 2358 | |
| 2359 // ======== loop entry is here ======== | |
| 2360 __ BIND(L_load_element); | |
|
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|
2361 __ load_heap_oop(rax_oop, from_element_addr); // load the oop |
| 304 | 2362 __ testptr(rax_oop, rax_oop); |
| 0 | 2363 __ jcc(Assembler::zero, L_store_element); |
| 2364 | |
|
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|
2365 __ load_klass(r11_klass, rax_oop);// query the object klass |
| 0 | 2366 generate_type_check(r11_klass, ckoff, ckval, L_store_element); |
| 2367 // ======== end loop ======== | |
| 2368 | |
| 2369 // It was a real error; we must depend on the caller to finish the job. | |
| 2370 // Register rdx = -1 * number of *remaining* oops, r14 = *total* oops. | |
| 2371 // Emit GC store barriers for the oops we have copied (r14 + rdx), | |
| 2372 // and report their number to the caller. | |
|
10324
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diff
changeset
|
2373 assert_different_registers(rax, r14_length, count, to, end_to, rcx, rscratch1); |
|
3f281b313240
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diff
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|
2374 Label L_post_barrier; |
|
3f281b313240
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diff
changeset
|
2375 __ addptr(r14_length, count); // K = (original - remaining) oops |
|
3f281b313240
8010927: Kitchensink crashed with SIGSEGV, Problematic frame: v ~StubRoutines::checkcast_arraycopy
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diff
changeset
|
2376 __ movptr(rax, r14_length); // save the value |
|
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8873
diff
changeset
|
2377 __ notptr(rax); // report (-1^K) to caller (does not affect flags) |
|
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diff
changeset
|
2378 __ jccb(Assembler::notZero, L_post_barrier); |
|
3f281b313240
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diff
changeset
|
2379 __ jmp(L_done); // K == 0, nothing was copied, skip post barrier |
| 0 | 2380 |
| 2381 // Come here on success only. | |
| 2382 __ BIND(L_do_card_marks); | |
|
10324
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diff
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|
2383 __ xorptr(rax, rax); // return 0 on success |
|
3f281b313240
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|
2384 |
|
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diff
changeset
|
2385 __ BIND(L_post_barrier); |
|
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diff
changeset
|
2386 gen_write_ref_array_post_barrier(to, r14_length, rscratch1); |
| 0 | 2387 |
| 2388 // Common exit point (success or failure). | |
| 2389 __ BIND(L_done); | |
| 304 | 2390 __ movptr(r13, Address(rsp, saved_r13_offset * wordSize)); |
| 2391 __ movptr(r14, Address(rsp, saved_r14_offset * wordSize)); | |
| 0 | 2392 restore_arg_regs(); |
|
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diff
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|
2393 inc_counter_np(SharedRuntime::_checkcast_array_copy_ctr); // Update counter after rscratch1 is free |
| 0 | 2394 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2395 __ ret(0); | |
| 2396 | |
| 2397 return start; | |
| 2398 } | |
| 2399 | |
| 2400 // | |
| 2401 // Generate 'unsafe' array copy stub | |
| 2402 // Though just as safe as the other stubs, it takes an unscaled | |
| 2403 // size_t argument instead of an element count. | |
| 2404 // | |
| 2405 // Input: | |
| 2406 // c_rarg0 - source array address | |
| 2407 // c_rarg1 - destination array address | |
| 2408 // c_rarg2 - byte count, treated as ssize_t, can be zero | |
| 2409 // | |
| 2410 // Examines the alignment of the operands and dispatches | |
| 2411 // to a long, int, short, or byte copy loop. | |
| 2412 // | |
|
2313
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diff
changeset
|
2413 address generate_unsafe_copy(const char *name, |
|
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diff
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|
2414 address byte_copy_entry, address short_copy_entry, |
|
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|
2415 address int_copy_entry, address long_copy_entry) { |
| 0 | 2416 |
| 2417 Label L_long_aligned, L_int_aligned, L_short_aligned; | |
| 2418 | |
| 2419 // Input registers (before setup_arg_regs) | |
| 2420 const Register from = c_rarg0; // source array address | |
| 2421 const Register to = c_rarg1; // destination array address | |
| 2422 const Register size = c_rarg2; // byte count (size_t) | |
| 2423 | |
| 2424 // Register used as a temp | |
| 2425 const Register bits = rax; // test copy of low bits | |
| 2426 | |
| 2427 __ align(CodeEntryAlignment); | |
| 2428 StubCodeMark mark(this, "StubRoutines", name); | |
| 2429 address start = __ pc(); | |
| 2430 | |
| 2431 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 2432 | |
| 2433 // bump this on entry, not on exit: | |
| 2434 inc_counter_np(SharedRuntime::_unsafe_array_copy_ctr); | |
| 2435 | |
| 304 | 2436 __ mov(bits, from); |
| 2437 __ orptr(bits, to); | |
| 2438 __ orptr(bits, size); | |
| 0 | 2439 |
| 2440 __ testb(bits, BytesPerLong-1); | |
| 2441 __ jccb(Assembler::zero, L_long_aligned); | |
| 2442 | |
| 2443 __ testb(bits, BytesPerInt-1); | |
| 2444 __ jccb(Assembler::zero, L_int_aligned); | |
| 2445 | |
| 2446 __ testb(bits, BytesPerShort-1); | |
| 2447 __ jump_cc(Assembler::notZero, RuntimeAddress(byte_copy_entry)); | |
| 2448 | |
| 2449 __ BIND(L_short_aligned); | |
| 304 | 2450 __ shrptr(size, LogBytesPerShort); // size => short_count |
| 0 | 2451 __ jump(RuntimeAddress(short_copy_entry)); |
| 2452 | |
| 2453 __ BIND(L_int_aligned); | |
| 304 | 2454 __ shrptr(size, LogBytesPerInt); // size => int_count |
| 0 | 2455 __ jump(RuntimeAddress(int_copy_entry)); |
| 2456 | |
| 2457 __ BIND(L_long_aligned); | |
| 304 | 2458 __ shrptr(size, LogBytesPerLong); // size => qword_count |
| 0 | 2459 __ jump(RuntimeAddress(long_copy_entry)); |
| 2460 | |
| 2461 return start; | |
| 2462 } | |
| 2463 | |
| 2464 // Perform range checks on the proposed arraycopy. | |
| 2465 // Kills temp, but nothing else. | |
| 2466 // Also, clean the sign bits of src_pos and dst_pos. | |
| 2467 void arraycopy_range_checks(Register src, // source array oop (c_rarg0) | |
| 2468 Register src_pos, // source position (c_rarg1) | |
| 2469 Register dst, // destination array oo (c_rarg2) | |
| 2470 Register dst_pos, // destination position (c_rarg3) | |
| 2471 Register length, | |
| 2472 Register temp, | |
| 2473 Label& L_failed) { | |
| 2474 BLOCK_COMMENT("arraycopy_range_checks:"); | |
| 2475 | |
| 2476 // if (src_pos + length > arrayOop(src)->length()) FAIL; | |
| 2477 __ movl(temp, length); | |
| 2478 __ addl(temp, src_pos); // src_pos + length | |
| 2479 __ cmpl(temp, Address(src, arrayOopDesc::length_offset_in_bytes())); | |
| 2480 __ jcc(Assembler::above, L_failed); | |
| 2481 | |
| 2482 // if (dst_pos + length > arrayOop(dst)->length()) FAIL; | |
| 2483 __ movl(temp, length); | |
| 2484 __ addl(temp, dst_pos); // dst_pos + length | |
| 2485 __ cmpl(temp, Address(dst, arrayOopDesc::length_offset_in_bytes())); | |
| 2486 __ jcc(Assembler::above, L_failed); | |
| 2487 | |
| 2488 // Have to clean up high 32-bits of 'src_pos' and 'dst_pos'. | |
| 2489 // Move with sign extension can be used since they are positive. | |
| 2490 __ movslq(src_pos, src_pos); | |
| 2491 __ movslq(dst_pos, dst_pos); | |
| 2492 | |
| 2493 BLOCK_COMMENT("arraycopy_range_checks done"); | |
| 2494 } | |
| 2495 | |
| 2496 // | |
| 2497 // Generate generic array copy stubs | |
| 2498 // | |
| 2499 // Input: | |
| 2500 // c_rarg0 - src oop | |
| 2501 // c_rarg1 - src_pos (32-bits) | |
| 2502 // c_rarg2 - dst oop | |
| 2503 // c_rarg3 - dst_pos (32-bits) | |
| 2504 // not Win64 | |
| 2505 // c_rarg4 - element count (32-bits) | |
| 2506 // Win64 | |
| 2507 // rsp+40 - element count (32-bits) | |
| 2508 // | |
| 2509 // Output: | |
| 2510 // rax == 0 - success | |
| 2511 // rax == -1^K - failure, where K is partial transfer count | |
| 2512 // | |
|
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|
2513 address generate_generic_copy(const char *name, |
|
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diff
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|
2514 address byte_copy_entry, address short_copy_entry, |
|
2409
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diff
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|
2515 address int_copy_entry, address oop_copy_entry, |
|
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diff
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|
2516 address long_copy_entry, address checkcast_copy_entry) { |
| 0 | 2517 |
| 2518 Label L_failed, L_failed_0, L_objArray; | |
| 2519 Label L_copy_bytes, L_copy_shorts, L_copy_ints, L_copy_longs; | |
| 2520 | |
| 2521 // Input registers | |
| 2522 const Register src = c_rarg0; // source array oop | |
| 2523 const Register src_pos = c_rarg1; // source position | |
| 2524 const Register dst = c_rarg2; // destination array oop | |
| 2525 const Register dst_pos = c_rarg3; // destination position | |
|
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diff
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|
2526 #ifndef _WIN64 |
|
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diff
changeset
|
2527 const Register length = c_rarg4; |
| 0 | 2528 #else |
|
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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|
2529 const Address length(rsp, 6 * wordSize); // elements count is on stack on Win64 |
| 0 | 2530 #endif |
| 2531 | |
| 2532 { int modulus = CodeEntryAlignment; | |
| 2533 int target = modulus - 5; // 5 = sizeof jmp(L_failed) | |
| 2534 int advance = target - (__ offset() % modulus); | |
| 2535 if (advance < 0) advance += modulus; | |
| 2536 if (advance > 0) __ nop(advance); | |
| 2537 } | |
| 2538 StubCodeMark mark(this, "StubRoutines", name); | |
| 2539 | |
| 2540 // Short-hop target to L_failed. Makes for denser prologue code. | |
| 2541 __ BIND(L_failed_0); | |
| 2542 __ jmp(L_failed); | |
| 2543 assert(__ offset() % CodeEntryAlignment == 0, "no further alignment needed"); | |
| 2544 | |
| 2545 __ align(CodeEntryAlignment); | |
| 2546 address start = __ pc(); | |
| 2547 | |
| 2548 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 2549 | |
| 2550 // bump this on entry, not on exit: | |
| 2551 inc_counter_np(SharedRuntime::_generic_array_copy_ctr); | |
| 2552 | |
| 2553 //----------------------------------------------------------------------- | |
| 2554 // Assembler stub will be used for this call to arraycopy | |
| 2555 // if the following conditions are met: | |
| 2556 // | |
| 2557 // (1) src and dst must not be null. | |
| 2558 // (2) src_pos must not be negative. | |
| 2559 // (3) dst_pos must not be negative. | |
| 2560 // (4) length must not be negative. | |
| 2561 // (5) src klass and dst klass should be the same and not NULL. | |
| 2562 // (6) src and dst should be arrays. | |
| 2563 // (7) src_pos + length must not exceed length of src. | |
| 2564 // (8) dst_pos + length must not exceed length of dst. | |
| 2565 // | |
| 2566 | |
| 2567 // if (src == NULL) return -1; | |
| 304 | 2568 __ testptr(src, src); // src oop |
| 0 | 2569 size_t j1off = __ offset(); |
| 2570 __ jccb(Assembler::zero, L_failed_0); | |
| 2571 | |
| 2572 // if (src_pos < 0) return -1; | |
| 2573 __ testl(src_pos, src_pos); // src_pos (32-bits) | |
| 2574 __ jccb(Assembler::negative, L_failed_0); | |
| 2575 | |
| 2576 // if (dst == NULL) return -1; | |
| 304 | 2577 __ testptr(dst, dst); // dst oop |
| 0 | 2578 __ jccb(Assembler::zero, L_failed_0); |
| 2579 | |
| 2580 // if (dst_pos < 0) return -1; | |
| 2581 __ testl(dst_pos, dst_pos); // dst_pos (32-bits) | |
| 2582 size_t j4off = __ offset(); | |
| 2583 __ jccb(Assembler::negative, L_failed_0); | |
| 2584 | |
| 2585 // The first four tests are very dense code, | |
| 2586 // but not quite dense enough to put four | |
| 2587 // jumps in a 16-byte instruction fetch buffer. | |
| 2588 // That's good, because some branch predicters | |
| 2589 // do not like jumps so close together. | |
| 2590 // Make sure of this. | |
| 2591 guarantee(((j1off ^ j4off) & ~15) != 0, "I$ line of 1st & 4th jumps"); | |
| 2592 | |
| 2593 // registers used as temp | |
| 2594 const Register r11_length = r11; // elements count to copy | |
| 2595 const Register r10_src_klass = r10; // array klass | |
| 2596 | |
| 2597 // if (length < 0) return -1; | |
|
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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|
2598 __ movl(r11_length, length); // length (elements count, 32-bits value) |
| 0 | 2599 __ testl(r11_length, r11_length); |
| 2600 __ jccb(Assembler::negative, L_failed_0); | |
| 2601 | |
|
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2602 __ load_klass(r10_src_klass, src); |
| 0 | 2603 #ifdef ASSERT |
| 2604 // assert(src->klass() != NULL); | |
|
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2605 { |
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2606 BLOCK_COMMENT("assert klasses not null {"); |
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|
2607 Label L1, L2; |
| 304 | 2608 __ testptr(r10_src_klass, r10_src_klass); |
| 0 | 2609 __ jcc(Assembler::notZero, L2); // it is broken if klass is NULL |
| 2610 __ bind(L1); | |
| 2611 __ stop("broken null klass"); | |
| 2612 __ bind(L2); | |
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2613 __ load_klass(rax, dst); |
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2614 __ cmpq(rax, 0); |
| 0 | 2615 __ jcc(Assembler::equal, L1); // this would be broken also |
|
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2616 BLOCK_COMMENT("} assert klasses not null done"); |
| 0 | 2617 } |
| 2618 #endif | |
| 2619 | |
| 2620 // Load layout helper (32-bits) | |
| 2621 // | |
| 2622 // |array_tag| | header_size | element_type | |log2_element_size| | |
| 2623 // 32 30 24 16 8 2 0 | |
| 2624 // | |
| 2625 // array_tag: typeArray = 0x3, objArray = 0x2, non-array = 0x0 | |
| 2626 // | |
| 2627 | |
|
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2628 const int lh_offset = in_bytes(Klass::layout_helper_offset()); |
| 0 | 2629 |
| 2630 // Handle objArrays completely differently... | |
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2631 const jint objArray_lh = Klass::array_layout_helper(T_OBJECT); |
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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2632 __ cmpl(Address(r10_src_klass, lh_offset), objArray_lh); |
| 0 | 2633 __ jcc(Assembler::equal, L_objArray); |
| 2634 | |
| 2635 // if (src->klass() != dst->klass()) return -1; | |
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2636 __ load_klass(rax, dst); |
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|
2637 __ cmpq(r10_src_klass, rax); |
| 0 | 2638 __ jcc(Assembler::notEqual, L_failed); |
| 2639 | |
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|
2640 const Register rax_lh = rax; // layout helper |
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2641 __ movl(rax_lh, Address(r10_src_klass, lh_offset)); |
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2642 |
| 0 | 2643 // if (!src->is_Array()) return -1; |
| 2644 __ cmpl(rax_lh, Klass::_lh_neutral_value); | |
| 2645 __ jcc(Assembler::greaterEqual, L_failed); | |
| 2646 | |
| 2647 // At this point, it is known to be a typeArray (array_tag 0x3). | |
| 2648 #ifdef ASSERT | |
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2649 { |
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2650 BLOCK_COMMENT("assert primitive array {"); |
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|
2651 Label L; |
| 0 | 2652 __ cmpl(rax_lh, (Klass::_lh_array_tag_type_value << Klass::_lh_array_tag_shift)); |
| 2653 __ jcc(Assembler::greaterEqual, L); | |
| 2654 __ stop("must be a primitive array"); | |
| 2655 __ bind(L); | |
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2656 BLOCK_COMMENT("} assert primitive array done"); |
| 0 | 2657 } |
| 2658 #endif | |
| 2659 | |
| 2660 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
| 2661 r10, L_failed); | |
| 2662 | |
|
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2663 // TypeArrayKlass |
| 0 | 2664 // |
| 2665 // src_addr = (src + array_header_in_bytes()) + (src_pos << log2elemsize); | |
| 2666 // dst_addr = (dst + array_header_in_bytes()) + (dst_pos << log2elemsize); | |
| 2667 // | |
| 2668 | |
| 2669 const Register r10_offset = r10; // array offset | |
| 2670 const Register rax_elsize = rax_lh; // element size | |
| 2671 | |
| 2672 __ movl(r10_offset, rax_lh); | |
| 2673 __ shrl(r10_offset, Klass::_lh_header_size_shift); | |
| 304 | 2674 __ andptr(r10_offset, Klass::_lh_header_size_mask); // array_offset |
| 2675 __ addptr(src, r10_offset); // src array offset | |
| 2676 __ addptr(dst, r10_offset); // dst array offset | |
| 0 | 2677 BLOCK_COMMENT("choose copy loop based on element size"); |
| 2678 __ andl(rax_lh, Klass::_lh_log2_element_size_mask); // rax_lh -> rax_elsize | |
| 2679 | |
| 2680 // next registers should be set before the jump to corresponding stub | |
| 2681 const Register from = c_rarg0; // source array address | |
| 2682 const Register to = c_rarg1; // destination array address | |
| 2683 const Register count = c_rarg2; // elements count | |
| 2684 | |
| 2685 // 'from', 'to', 'count' registers should be set in such order | |
| 2686 // since they are the same as 'src', 'src_pos', 'dst'. | |
| 2687 | |
| 2688 __ BIND(L_copy_bytes); | |
| 2689 __ cmpl(rax_elsize, 0); | |
| 2690 __ jccb(Assembler::notEqual, L_copy_shorts); | |
| 304 | 2691 __ lea(from, Address(src, src_pos, Address::times_1, 0));// src_addr |
| 2692 __ lea(to, Address(dst, dst_pos, Address::times_1, 0));// dst_addr | |
| 2693 __ movl2ptr(count, r11_length); // length | |
| 0 | 2694 __ jump(RuntimeAddress(byte_copy_entry)); |
| 2695 | |
| 2696 __ BIND(L_copy_shorts); | |
| 2697 __ cmpl(rax_elsize, LogBytesPerShort); | |
| 2698 __ jccb(Assembler::notEqual, L_copy_ints); | |
| 304 | 2699 __ lea(from, Address(src, src_pos, Address::times_2, 0));// src_addr |
| 2700 __ lea(to, Address(dst, dst_pos, Address::times_2, 0));// dst_addr | |
| 2701 __ movl2ptr(count, r11_length); // length | |
| 0 | 2702 __ jump(RuntimeAddress(short_copy_entry)); |
| 2703 | |
| 2704 __ BIND(L_copy_ints); | |
| 2705 __ cmpl(rax_elsize, LogBytesPerInt); | |
| 2706 __ jccb(Assembler::notEqual, L_copy_longs); | |
| 304 | 2707 __ lea(from, Address(src, src_pos, Address::times_4, 0));// src_addr |
| 2708 __ lea(to, Address(dst, dst_pos, Address::times_4, 0));// dst_addr | |
| 2709 __ movl2ptr(count, r11_length); // length | |
| 0 | 2710 __ jump(RuntimeAddress(int_copy_entry)); |
| 2711 | |
| 2712 __ BIND(L_copy_longs); | |
| 2713 #ifdef ASSERT | |
|
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6998985: faulty generic arraycopy on windows x86_64: 4th arg overwritten with oop
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2714 { |
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|
2715 BLOCK_COMMENT("assert long copy {"); |
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|
2716 Label L; |
| 0 | 2717 __ cmpl(rax_elsize, LogBytesPerLong); |
| 2718 __ jcc(Assembler::equal, L); | |
| 2719 __ stop("must be long copy, but elsize is wrong"); | |
| 2720 __ bind(L); | |
|
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|
2721 BLOCK_COMMENT("} assert long copy done"); |
| 0 | 2722 } |
| 2723 #endif | |
| 304 | 2724 __ lea(from, Address(src, src_pos, Address::times_8, 0));// src_addr |
| 2725 __ lea(to, Address(dst, dst_pos, Address::times_8, 0));// dst_addr | |
| 2726 __ movl2ptr(count, r11_length); // length | |
| 0 | 2727 __ jump(RuntimeAddress(long_copy_entry)); |
| 2728 | |
|
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|
2729 // ObjArrayKlass |
| 0 | 2730 __ BIND(L_objArray); |
|
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2731 // live at this point: r10_src_klass, r11_length, src[_pos], dst[_pos] |
| 0 | 2732 |
| 2733 Label L_plain_copy, L_checkcast_copy; | |
| 2734 // test array classes for subtyping | |
|
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|
2735 __ load_klass(rax, dst); |
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|
2736 __ cmpq(r10_src_klass, rax); // usual case is exact equality |
| 0 | 2737 __ jcc(Assembler::notEqual, L_checkcast_copy); |
| 2738 | |
| 2739 // Identically typed arrays can be copied without element-wise checks. | |
| 2740 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
| 2741 r10, L_failed); | |
| 2742 | |
| 304 | 2743 __ lea(from, Address(src, src_pos, TIMES_OOP, |
| 0 | 2744 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // src_addr |
| 304 | 2745 __ lea(to, Address(dst, dst_pos, TIMES_OOP, |
| 2746 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); // dst_addr | |
| 2747 __ movl2ptr(count, r11_length); // length | |
| 0 | 2748 __ BIND(L_plain_copy); |
| 2749 __ jump(RuntimeAddress(oop_copy_entry)); | |
| 2750 | |
| 2751 __ BIND(L_checkcast_copy); | |
|
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2752 // live at this point: r10_src_klass, r11_length, rax (dst_klass) |
| 0 | 2753 { |
| 2754 // Before looking at dst.length, make sure dst is also an objArray. | |
|
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|
2755 __ cmpl(Address(rax, lh_offset), objArray_lh); |
| 0 | 2756 __ jcc(Assembler::notEqual, L_failed); |
| 2757 | |
| 2758 // It is safe to examine both src.length and dst.length. | |
| 2759 arraycopy_range_checks(src, src_pos, dst, dst_pos, r11_length, | |
| 2760 rax, L_failed); | |
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2761 |
|
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|
2762 const Register r11_dst_klass = r11; |
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2763 __ load_klass(r11_dst_klass, dst); // reload |
| 0 | 2764 |
| 2765 // Marshal the base address arguments now, freeing registers. | |
| 304 | 2766 __ lea(from, Address(src, src_pos, TIMES_OOP, |
| 0 | 2767 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 304 | 2768 __ lea(to, Address(dst, dst_pos, TIMES_OOP, |
| 0 | 2769 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
|
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2770 __ movl(count, length); // length (reloaded) |
| 0 | 2771 Register sco_temp = c_rarg3; // this register is free now |
| 2772 assert_different_registers(from, to, count, sco_temp, | |
| 2773 r11_dst_klass, r10_src_klass); | |
| 2774 assert_clean_int(count, sco_temp); | |
| 2775 | |
| 2776 // Generate the type check. | |
|
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2777 const int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
| 0 | 2778 __ movl(sco_temp, Address(r11_dst_klass, sco_offset)); |
| 2779 assert_clean_int(sco_temp, rax); | |
| 2780 generate_type_check(r10_src_klass, sco_temp, r11_dst_klass, L_plain_copy); | |
| 2781 | |
|
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2782 // Fetch destination element klass from the ObjArrayKlass header. |
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2783 int ek_offset = in_bytes(ObjArrayKlass::element_klass_offset()); |
| 304 | 2784 __ movptr(r11_dst_klass, Address(r11_dst_klass, ek_offset)); |
|
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2785 __ movl( sco_temp, Address(r11_dst_klass, sco_offset)); |
| 0 | 2786 assert_clean_int(sco_temp, rax); |
| 2787 | |
| 2788 // the checkcast_copy loop needs two extra arguments: | |
| 2789 assert(c_rarg3 == sco_temp, "#3 already in place"); | |
|
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2790 // Set up arguments for checkcast_copy_entry. |
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2791 setup_arg_regs(4); |
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2792 __ movptr(r8, r11_dst_klass); // dst.klass.element_klass, r8 is c_rarg4 on Linux/Solaris |
| 0 | 2793 __ jump(RuntimeAddress(checkcast_copy_entry)); |
| 2794 } | |
| 2795 | |
| 2796 __ BIND(L_failed); | |
| 304 | 2797 __ xorptr(rax, rax); |
| 2798 __ notptr(rax); // return -1 | |
| 0 | 2799 __ leave(); // required for proper stackwalking of RuntimeStub frame |
| 2800 __ ret(0); | |
| 2801 | |
| 2802 return start; | |
| 2803 } | |
| 2804 | |
| 2805 void generate_arraycopy_stubs() { | |
|
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2806 address entry; |
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2807 address entry_jbyte_arraycopy; |
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2808 address entry_jshort_arraycopy; |
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2809 address entry_jint_arraycopy; |
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2810 address entry_oop_arraycopy; |
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2811 address entry_jlong_arraycopy; |
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|
2812 address entry_checkcast_arraycopy; |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2813 |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2814 StubRoutines::_jbyte_disjoint_arraycopy = generate_disjoint_byte_copy(false, &entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2815 "jbyte_disjoint_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2816 StubRoutines::_jbyte_arraycopy = generate_conjoint_byte_copy(false, entry, &entry_jbyte_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2817 "jbyte_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2818 |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2819 StubRoutines::_jshort_disjoint_arraycopy = generate_disjoint_short_copy(false, &entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2820 "jshort_disjoint_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2821 StubRoutines::_jshort_arraycopy = generate_conjoint_short_copy(false, entry, &entry_jshort_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2822 "jshort_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2823 |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2824 StubRoutines::_jint_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, false, &entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2825 "jint_disjoint_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2826 StubRoutines::_jint_arraycopy = generate_conjoint_int_oop_copy(false, false, entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2827 &entry_jint_arraycopy, "jint_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2828 |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2829 StubRoutines::_jlong_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, false, &entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2830 "jlong_disjoint_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2831 StubRoutines::_jlong_arraycopy = generate_conjoint_long_oop_copy(false, false, entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2832 &entry_jlong_arraycopy, "jlong_arraycopy"); |
| 0 | 2833 |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
16
diff
changeset
|
2834 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
16
diff
changeset
|
2835 if (UseCompressedOops) { |
|
2313
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2836 StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_int_oop_copy(false, true, &entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2837 "oop_disjoint_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2838 StubRoutines::_oop_arraycopy = generate_conjoint_int_oop_copy(false, true, entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2839 &entry_oop_arraycopy, "oop_arraycopy"); |
| 2324 | 2840 StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_int_oop_copy(false, true, &entry, |
| 2841 "oop_disjoint_arraycopy_uninit", | |
| 2842 /*dest_uninitialized*/true); | |
| 2843 StubRoutines::_oop_arraycopy_uninit = generate_conjoint_int_oop_copy(false, true, entry, | |
| 2844 NULL, "oop_arraycopy_uninit", | |
| 2845 /*dest_uninitialized*/true); | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
16
diff
changeset
|
2846 } else { |
|
2313
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2847 StubRoutines::_oop_disjoint_arraycopy = generate_disjoint_long_oop_copy(false, true, &entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2848 "oop_disjoint_arraycopy"); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2849 StubRoutines::_oop_arraycopy = generate_conjoint_long_oop_copy(false, true, entry, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2850 &entry_oop_arraycopy, "oop_arraycopy"); |
| 2324 | 2851 StubRoutines::_oop_disjoint_arraycopy_uninit = generate_disjoint_long_oop_copy(false, true, &entry, |
| 2852 "oop_disjoint_arraycopy_uninit", | |
| 2853 /*dest_uninitialized*/true); | |
| 2854 StubRoutines::_oop_arraycopy_uninit = generate_conjoint_long_oop_copy(false, true, entry, | |
| 2855 NULL, "oop_arraycopy_uninit", | |
| 2856 /*dest_uninitialized*/true); | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
16
diff
changeset
|
2857 } |
| 0 | 2858 |
| 2324 | 2859 StubRoutines::_checkcast_arraycopy = generate_checkcast_copy("checkcast_arraycopy", &entry_checkcast_arraycopy); |
| 2860 StubRoutines::_checkcast_arraycopy_uninit = generate_checkcast_copy("checkcast_arraycopy_uninit", NULL, | |
| 2861 /*dest_uninitialized*/true); | |
| 2862 | |
|
2313
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2863 StubRoutines::_unsafe_arraycopy = generate_unsafe_copy("unsafe_arraycopy", |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2864 entry_jbyte_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2865 entry_jshort_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2866 entry_jint_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2867 entry_jlong_arraycopy); |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2868 StubRoutines::_generic_arraycopy = generate_generic_copy("generic_arraycopy", |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2869 entry_jbyte_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2870 entry_jshort_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2871 entry_jint_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2872 entry_oop_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2873 entry_jlong_arraycopy, |
|
d89a22843c62
7020521: arraycopy stubs place prebarriers incorrectly
iveresov
parents:
2006
diff
changeset
|
2874 entry_checkcast_arraycopy); |
| 0 | 2875 |
| 1763 | 2876 StubRoutines::_jbyte_fill = generate_fill(T_BYTE, false, "jbyte_fill"); |
| 2877 StubRoutines::_jshort_fill = generate_fill(T_SHORT, false, "jshort_fill"); | |
| 2878 StubRoutines::_jint_fill = generate_fill(T_INT, false, "jint_fill"); | |
| 2879 StubRoutines::_arrayof_jbyte_fill = generate_fill(T_BYTE, true, "arrayof_jbyte_fill"); | |
| 2880 StubRoutines::_arrayof_jshort_fill = generate_fill(T_SHORT, true, "arrayof_jshort_fill"); | |
| 2881 StubRoutines::_arrayof_jint_fill = generate_fill(T_INT, true, "arrayof_jint_fill"); | |
| 2882 | |
| 0 | 2883 // We don't generate specialized code for HeapWord-aligned source |
| 2884 // arrays, so just use the code we've already generated | |
| 2885 StubRoutines::_arrayof_jbyte_disjoint_arraycopy = StubRoutines::_jbyte_disjoint_arraycopy; | |
| 2886 StubRoutines::_arrayof_jbyte_arraycopy = StubRoutines::_jbyte_arraycopy; | |
| 2887 | |
| 2888 StubRoutines::_arrayof_jshort_disjoint_arraycopy = StubRoutines::_jshort_disjoint_arraycopy; | |
| 2889 StubRoutines::_arrayof_jshort_arraycopy = StubRoutines::_jshort_arraycopy; | |
| 2890 | |
| 2891 StubRoutines::_arrayof_jint_disjoint_arraycopy = StubRoutines::_jint_disjoint_arraycopy; | |
| 2892 StubRoutines::_arrayof_jint_arraycopy = StubRoutines::_jint_arraycopy; | |
| 2893 | |
| 2894 StubRoutines::_arrayof_jlong_disjoint_arraycopy = StubRoutines::_jlong_disjoint_arraycopy; | |
| 2895 StubRoutines::_arrayof_jlong_arraycopy = StubRoutines::_jlong_arraycopy; | |
| 2896 | |
| 2897 StubRoutines::_arrayof_oop_disjoint_arraycopy = StubRoutines::_oop_disjoint_arraycopy; | |
| 2898 StubRoutines::_arrayof_oop_arraycopy = StubRoutines::_oop_arraycopy; | |
| 2324 | 2899 |
| 2900 StubRoutines::_arrayof_oop_disjoint_arraycopy_uninit = StubRoutines::_oop_disjoint_arraycopy_uninit; | |
| 2901 StubRoutines::_arrayof_oop_arraycopy_uninit = StubRoutines::_oop_arraycopy_uninit; | |
| 0 | 2902 } |
| 2903 | |
|
1174
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2904 void generate_math_stubs() { |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2905 { |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2906 StubCodeMark mark(this, "StubRoutines", "log"); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2907 StubRoutines::_intrinsic_log = (double (*)(double)) __ pc(); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2908 |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2909 __ subq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2910 __ movdbl(Address(rsp, 0), xmm0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2911 __ fld_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2912 __ flog(); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2913 __ fstp_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2914 __ movdbl(xmm0, Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2915 __ addq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2916 __ ret(0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2917 } |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2918 { |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2919 StubCodeMark mark(this, "StubRoutines", "log10"); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2920 StubRoutines::_intrinsic_log10 = (double (*)(double)) __ pc(); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2921 |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2922 __ subq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2923 __ movdbl(Address(rsp, 0), xmm0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2924 __ fld_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2925 __ flog10(); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2926 __ fstp_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2927 __ movdbl(xmm0, Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2928 __ addq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2929 __ ret(0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2930 } |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2931 { |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2932 StubCodeMark mark(this, "StubRoutines", "sin"); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2933 StubRoutines::_intrinsic_sin = (double (*)(double)) __ pc(); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2934 |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2935 __ subq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2936 __ movdbl(Address(rsp, 0), xmm0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2937 __ fld_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2938 __ trigfunc('s'); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2939 __ fstp_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2940 __ movdbl(xmm0, Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2941 __ addq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2942 __ ret(0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2943 } |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2944 { |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2945 StubCodeMark mark(this, "StubRoutines", "cos"); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2946 StubRoutines::_intrinsic_cos = (double (*)(double)) __ pc(); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2947 |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2948 __ subq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2949 __ movdbl(Address(rsp, 0), xmm0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2950 __ fld_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2951 __ trigfunc('c'); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2952 __ fstp_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2953 __ movdbl(xmm0, Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2954 __ addq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2955 __ ret(0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2956 } |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2957 { |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2958 StubCodeMark mark(this, "StubRoutines", "tan"); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2959 StubRoutines::_intrinsic_tan = (double (*)(double)) __ pc(); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2960 |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2961 __ subq(rsp, 8); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2962 __ movdbl(Address(rsp, 0), xmm0); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2963 __ fld_d(Address(rsp, 0)); |
|
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
2964 __ trigfunc('t'); |
|
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diff
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|
2965 __ fstp_d(Address(rsp, 0)); |
|
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|
2966 __ movdbl(xmm0, Address(rsp, 0)); |
|
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|
2967 __ addq(rsp, 8); |
|
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diff
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|
2968 __ ret(0); |
|
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|
2969 } |
|
6084
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diff
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|
2970 { |
|
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|
2971 StubCodeMark mark(this, "StubRoutines", "exp"); |
|
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|
2972 StubRoutines::_intrinsic_exp = (double (*)(double)) __ pc(); |
|
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|
2973 |
|
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|
2974 __ subq(rsp, 8); |
|
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diff
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|
2975 __ movdbl(Address(rsp, 0), xmm0); |
|
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|
2976 __ fld_d(Address(rsp, 0)); |
|
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|
2977 __ exp_with_fallback(0); |
|
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|
2978 __ fstp_d(Address(rsp, 0)); |
|
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|
2979 __ movdbl(xmm0, Address(rsp, 0)); |
|
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|
2980 __ addq(rsp, 8); |
|
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|
2981 __ ret(0); |
|
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|
2982 } |
|
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|
2983 { |
|
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|
2984 StubCodeMark mark(this, "StubRoutines", "pow"); |
|
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|
2985 StubRoutines::_intrinsic_pow = (double (*)(double,double)) __ pc(); |
|
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|
2986 |
|
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|
2987 __ subq(rsp, 8); |
|
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|
2988 __ movdbl(Address(rsp, 0), xmm1); |
|
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|
2989 __ fld_d(Address(rsp, 0)); |
|
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|
2990 __ movdbl(Address(rsp, 0), xmm0); |
|
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|
2991 __ fld_d(Address(rsp, 0)); |
|
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|
2992 __ pow_with_fallback(0); |
|
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|
2993 __ fstp_d(Address(rsp, 0)); |
|
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|
2994 __ movdbl(xmm0, Address(rsp, 0)); |
|
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|
2995 __ addq(rsp, 8); |
|
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|
2996 __ ret(0); |
|
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diff
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|
2997 } |
|
1174
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|
2998 } |
|
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|
2999 |
| 6894 | 3000 // AES intrinsic stubs |
| 3001 enum {AESBlockSize = 16}; | |
| 3002 | |
| 3003 address generate_key_shuffle_mask() { | |
| 3004 __ align(16); | |
| 3005 StubCodeMark mark(this, "StubRoutines", "key_shuffle_mask"); | |
| 3006 address start = __ pc(); | |
| 3007 __ emit_data64( 0x0405060700010203, relocInfo::none ); | |
| 3008 __ emit_data64( 0x0c0d0e0f08090a0b, relocInfo::none ); | |
| 3009 return start; | |
| 3010 } | |
| 3011 | |
| 3012 // Utility routine for loading a 128-bit key word in little endian format | |
| 3013 // can optionally specify that the shuffle mask is already in an xmmregister | |
| 3014 void load_key(XMMRegister xmmdst, Register key, int offset, XMMRegister xmm_shuf_mask=NULL) { | |
| 3015 __ movdqu(xmmdst, Address(key, offset)); | |
| 3016 if (xmm_shuf_mask != NULL) { | |
| 3017 __ pshufb(xmmdst, xmm_shuf_mask); | |
| 3018 } else { | |
| 3019 __ pshufb(xmmdst, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
| 3020 } | |
| 3021 } | |
| 3022 | |
| 3023 // Arguments: | |
| 3024 // | |
| 3025 // Inputs: | |
| 3026 // c_rarg0 - source byte array address | |
| 3027 // c_rarg1 - destination byte array address | |
| 3028 // c_rarg2 - K (key) in little endian int array | |
| 3029 // | |
| 3030 address generate_aescrypt_encryptBlock() { | |
| 7427 | 3031 assert(UseAES, "need AES instructions and misaligned SSE support"); |
| 6894 | 3032 __ align(CodeEntryAlignment); |
| 3033 StubCodeMark mark(this, "StubRoutines", "aescrypt_encryptBlock"); | |
| 3034 Label L_doLast; | |
| 3035 address start = __ pc(); | |
| 3036 | |
| 3037 const Register from = c_rarg0; // source array address | |
| 3038 const Register to = c_rarg1; // destination array address | |
| 3039 const Register key = c_rarg2; // key array address | |
| 3040 const Register keylen = rax; | |
| 3041 | |
| 3042 const XMMRegister xmm_result = xmm0; | |
| 7427 | 3043 const XMMRegister xmm_key_shuf_mask = xmm1; |
| 3044 // On win64 xmm6-xmm15 must be preserved so don't use them. | |
| 3045 const XMMRegister xmm_temp1 = xmm2; | |
| 3046 const XMMRegister xmm_temp2 = xmm3; | |
| 3047 const XMMRegister xmm_temp3 = xmm4; | |
| 3048 const XMMRegister xmm_temp4 = xmm5; | |
| 6894 | 3049 |
| 3050 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 3051 | |
| 7427 | 3052 // keylen could be only {11, 13, 15} * 4 = {44, 52, 60} |
| 6894 | 3053 __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); |
| 3054 | |
| 3055 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
| 3056 __ movdqu(xmm_result, Address(from, 0)); // get 16 bytes of input | |
| 3057 | |
| 3058 // For encryption, the java expanded key ordering is just what we need | |
| 3059 // we don't know if the key is aligned, hence not using load-execute form | |
| 3060 | |
| 7427 | 3061 load_key(xmm_temp1, key, 0x00, xmm_key_shuf_mask); |
| 3062 __ pxor(xmm_result, xmm_temp1); | |
| 3063 | |
| 3064 load_key(xmm_temp1, key, 0x10, xmm_key_shuf_mask); | |
| 3065 load_key(xmm_temp2, key, 0x20, xmm_key_shuf_mask); | |
| 3066 load_key(xmm_temp3, key, 0x30, xmm_key_shuf_mask); | |
| 3067 load_key(xmm_temp4, key, 0x40, xmm_key_shuf_mask); | |
| 3068 | |
| 3069 __ aesenc(xmm_result, xmm_temp1); | |
| 3070 __ aesenc(xmm_result, xmm_temp2); | |
| 3071 __ aesenc(xmm_result, xmm_temp3); | |
| 3072 __ aesenc(xmm_result, xmm_temp4); | |
| 3073 | |
| 3074 load_key(xmm_temp1, key, 0x50, xmm_key_shuf_mask); | |
| 3075 load_key(xmm_temp2, key, 0x60, xmm_key_shuf_mask); | |
| 3076 load_key(xmm_temp3, key, 0x70, xmm_key_shuf_mask); | |
| 3077 load_key(xmm_temp4, key, 0x80, xmm_key_shuf_mask); | |
| 3078 | |
| 3079 __ aesenc(xmm_result, xmm_temp1); | |
| 3080 __ aesenc(xmm_result, xmm_temp2); | |
| 3081 __ aesenc(xmm_result, xmm_temp3); | |
| 3082 __ aesenc(xmm_result, xmm_temp4); | |
| 3083 | |
| 3084 load_key(xmm_temp1, key, 0x90, xmm_key_shuf_mask); | |
| 3085 load_key(xmm_temp2, key, 0xa0, xmm_key_shuf_mask); | |
| 3086 | |
| 3087 __ cmpl(keylen, 44); | |
| 3088 __ jccb(Assembler::equal, L_doLast); | |
| 3089 | |
| 3090 __ aesenc(xmm_result, xmm_temp1); | |
| 3091 __ aesenc(xmm_result, xmm_temp2); | |
| 3092 | |
| 3093 load_key(xmm_temp1, key, 0xb0, xmm_key_shuf_mask); | |
| 3094 load_key(xmm_temp2, key, 0xc0, xmm_key_shuf_mask); | |
| 3095 | |
| 3096 __ cmpl(keylen, 52); | |
| 3097 __ jccb(Assembler::equal, L_doLast); | |
| 3098 | |
| 3099 __ aesenc(xmm_result, xmm_temp1); | |
| 3100 __ aesenc(xmm_result, xmm_temp2); | |
| 3101 | |
| 3102 load_key(xmm_temp1, key, 0xd0, xmm_key_shuf_mask); | |
| 3103 load_key(xmm_temp2, key, 0xe0, xmm_key_shuf_mask); | |
| 6894 | 3104 |
| 3105 __ BIND(L_doLast); | |
| 7427 | 3106 __ aesenc(xmm_result, xmm_temp1); |
| 3107 __ aesenclast(xmm_result, xmm_temp2); | |
| 6894 | 3108 __ movdqu(Address(to, 0), xmm_result); // store the result |
| 3109 __ xorptr(rax, rax); // return 0 | |
| 3110 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
| 3111 __ ret(0); | |
| 3112 | |
| 3113 return start; | |
| 3114 } | |
| 3115 | |
| 3116 | |
| 3117 // Arguments: | |
| 3118 // | |
| 3119 // Inputs: | |
| 3120 // c_rarg0 - source byte array address | |
| 3121 // c_rarg1 - destination byte array address | |
| 3122 // c_rarg2 - K (key) in little endian int array | |
| 3123 // | |
| 3124 address generate_aescrypt_decryptBlock() { | |
| 7427 | 3125 assert(UseAES, "need AES instructions and misaligned SSE support"); |
| 6894 | 3126 __ align(CodeEntryAlignment); |
| 3127 StubCodeMark mark(this, "StubRoutines", "aescrypt_decryptBlock"); | |
| 3128 Label L_doLast; | |
| 3129 address start = __ pc(); | |
| 3130 | |
| 3131 const Register from = c_rarg0; // source array address | |
| 3132 const Register to = c_rarg1; // destination array address | |
| 3133 const Register key = c_rarg2; // key array address | |
| 3134 const Register keylen = rax; | |
| 3135 | |
| 3136 const XMMRegister xmm_result = xmm0; | |
| 7427 | 3137 const XMMRegister xmm_key_shuf_mask = xmm1; |
| 3138 // On win64 xmm6-xmm15 must be preserved so don't use them. | |
| 3139 const XMMRegister xmm_temp1 = xmm2; | |
| 3140 const XMMRegister xmm_temp2 = xmm3; | |
| 3141 const XMMRegister xmm_temp3 = xmm4; | |
| 3142 const XMMRegister xmm_temp4 = xmm5; | |
| 6894 | 3143 |
| 3144 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 3145 | |
| 7427 | 3146 // keylen could be only {11, 13, 15} * 4 = {44, 52, 60} |
| 6894 | 3147 __ movl(keylen, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); |
| 3148 | |
| 3149 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
| 3150 __ movdqu(xmm_result, Address(from, 0)); | |
| 3151 | |
| 3152 // for decryption java expanded key ordering is rotated one position from what we want | |
| 3153 // so we start from 0x10 here and hit 0x00 last | |
| 3154 // we don't know if the key is aligned, hence not using load-execute form | |
| 7427 | 3155 load_key(xmm_temp1, key, 0x10, xmm_key_shuf_mask); |
| 3156 load_key(xmm_temp2, key, 0x20, xmm_key_shuf_mask); | |
| 3157 load_key(xmm_temp3, key, 0x30, xmm_key_shuf_mask); | |
| 3158 load_key(xmm_temp4, key, 0x40, xmm_key_shuf_mask); | |
| 3159 | |
| 3160 __ pxor (xmm_result, xmm_temp1); | |
| 3161 __ aesdec(xmm_result, xmm_temp2); | |
| 3162 __ aesdec(xmm_result, xmm_temp3); | |
| 3163 __ aesdec(xmm_result, xmm_temp4); | |
| 3164 | |
| 3165 load_key(xmm_temp1, key, 0x50, xmm_key_shuf_mask); | |
| 3166 load_key(xmm_temp2, key, 0x60, xmm_key_shuf_mask); | |
| 3167 load_key(xmm_temp3, key, 0x70, xmm_key_shuf_mask); | |
| 3168 load_key(xmm_temp4, key, 0x80, xmm_key_shuf_mask); | |
| 3169 | |
| 3170 __ aesdec(xmm_result, xmm_temp1); | |
| 3171 __ aesdec(xmm_result, xmm_temp2); | |
| 3172 __ aesdec(xmm_result, xmm_temp3); | |
| 3173 __ aesdec(xmm_result, xmm_temp4); | |
| 3174 | |
| 3175 load_key(xmm_temp1, key, 0x90, xmm_key_shuf_mask); | |
| 3176 load_key(xmm_temp2, key, 0xa0, xmm_key_shuf_mask); | |
| 3177 load_key(xmm_temp3, key, 0x00, xmm_key_shuf_mask); | |
| 3178 | |
| 3179 __ cmpl(keylen, 44); | |
| 3180 __ jccb(Assembler::equal, L_doLast); | |
| 3181 | |
| 3182 __ aesdec(xmm_result, xmm_temp1); | |
| 3183 __ aesdec(xmm_result, xmm_temp2); | |
| 3184 | |
| 3185 load_key(xmm_temp1, key, 0xb0, xmm_key_shuf_mask); | |
| 3186 load_key(xmm_temp2, key, 0xc0, xmm_key_shuf_mask); | |
| 3187 | |
| 3188 __ cmpl(keylen, 52); | |
| 3189 __ jccb(Assembler::equal, L_doLast); | |
| 3190 | |
| 3191 __ aesdec(xmm_result, xmm_temp1); | |
| 3192 __ aesdec(xmm_result, xmm_temp2); | |
| 3193 | |
| 3194 load_key(xmm_temp1, key, 0xd0, xmm_key_shuf_mask); | |
| 3195 load_key(xmm_temp2, key, 0xe0, xmm_key_shuf_mask); | |
| 6894 | 3196 |
| 3197 __ BIND(L_doLast); | |
| 7427 | 3198 __ aesdec(xmm_result, xmm_temp1); |
| 3199 __ aesdec(xmm_result, xmm_temp2); | |
| 3200 | |
| 6894 | 3201 // for decryption the aesdeclast operation is always on key+0x00 |
| 7427 | 3202 __ aesdeclast(xmm_result, xmm_temp3); |
| 6894 | 3203 __ movdqu(Address(to, 0), xmm_result); // store the result |
| 3204 __ xorptr(rax, rax); // return 0 | |
| 3205 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
| 3206 __ ret(0); | |
| 3207 | |
| 3208 return start; | |
| 3209 } | |
| 3210 | |
| 3211 | |
| 3212 // Arguments: | |
| 3213 // | |
| 3214 // Inputs: | |
| 3215 // c_rarg0 - source byte array address | |
| 3216 // c_rarg1 - destination byte array address | |
| 3217 // c_rarg2 - K (key) in little endian int array | |
| 3218 // c_rarg3 - r vector byte array address | |
| 3219 // c_rarg4 - input length | |
| 3220 // | |
| 3221 address generate_cipherBlockChaining_encryptAESCrypt() { | |
| 7427 | 3222 assert(UseAES, "need AES instructions and misaligned SSE support"); |
| 6894 | 3223 __ align(CodeEntryAlignment); |
| 3224 StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_encryptAESCrypt"); | |
| 3225 address start = __ pc(); | |
| 3226 | |
| 3227 Label L_exit, L_key_192_256, L_key_256, L_loopTop_128, L_loopTop_192, L_loopTop_256; | |
| 3228 const Register from = c_rarg0; // source array address | |
| 3229 const Register to = c_rarg1; // destination array address | |
| 3230 const Register key = c_rarg2; // key array address | |
| 3231 const Register rvec = c_rarg3; // r byte array initialized from initvector array address | |
| 3232 // and left with the results of the last encryption block | |
| 3233 #ifndef _WIN64 | |
| 3234 const Register len_reg = c_rarg4; // src len (must be multiple of blocksize 16) | |
| 3235 #else | |
| 3236 const Address len_mem(rsp, 6 * wordSize); // length is on stack on Win64 | |
| 3237 const Register len_reg = r10; // pick the first volatile windows register | |
| 3238 #endif | |
| 3239 const Register pos = rax; | |
| 3240 | |
| 3241 // xmm register assignments for the loops below | |
| 3242 const XMMRegister xmm_result = xmm0; | |
| 3243 const XMMRegister xmm_temp = xmm1; | |
| 3244 // keys 0-10 preloaded into xmm2-xmm12 | |
| 3245 const int XMM_REG_NUM_KEY_FIRST = 2; | |
| 7427 | 3246 const int XMM_REG_NUM_KEY_LAST = 15; |
| 6894 | 3247 const XMMRegister xmm_key0 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST); |
| 7427 | 3248 const XMMRegister xmm_key10 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+10); |
| 3249 const XMMRegister xmm_key11 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+11); | |
| 3250 const XMMRegister xmm_key12 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+12); | |
| 3251 const XMMRegister xmm_key13 = as_XMMRegister(XMM_REG_NUM_KEY_FIRST+13); | |
| 6894 | 3252 |
| 3253 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 3254 | |
| 3255 #ifdef _WIN64 | |
| 3256 // on win64, fill len_reg from stack position | |
| 3257 __ movl(len_reg, len_mem); | |
| 7427 | 3258 // save the xmm registers which must be preserved 6-15 |
| 6894 | 3259 __ subptr(rsp, -rsp_after_call_off * wordSize); |
| 3260 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
| 3261 __ movdqu(xmm_save(i), as_XMMRegister(i)); | |
| 3262 } | |
| 3263 #endif | |
| 3264 | |
| 3265 const XMMRegister xmm_key_shuf_mask = xmm_temp; // used temporarily to swap key bytes up front | |
| 3266 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
| 7427 | 3267 // load up xmm regs xmm2 thru xmm12 with key 0x00 - 0xa0 |
| 3268 for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x00; rnum <= XMM_REG_NUM_KEY_FIRST+10; rnum++) { | |
| 6894 | 3269 load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask); |
| 3270 offset += 0x10; | |
| 3271 } | |
| 3272 __ movdqu(xmm_result, Address(rvec, 0x00)); // initialize xmm_result with r vec | |
| 3273 | |
| 3274 // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256)) | |
| 3275 __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 3276 __ cmpl(rax, 44); | |
| 3277 __ jcc(Assembler::notEqual, L_key_192_256); | |
| 3278 | |
| 3279 // 128 bit code follows here | |
| 3280 __ movptr(pos, 0); | |
| 3281 __ align(OptoLoopAlignment); | |
| 7427 | 3282 |
| 6894 | 3283 __ BIND(L_loopTop_128); |
| 3284 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
| 3285 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
| 3286 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
| 7427 | 3287 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_FIRST + 9; rnum++) { |
| 6894 | 3288 __ aesenc(xmm_result, as_XMMRegister(rnum)); |
| 3289 } | |
| 3290 __ aesenclast(xmm_result, xmm_key10); | |
| 3291 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
| 3292 // no need to store r to memory until we exit | |
| 3293 __ addptr(pos, AESBlockSize); | |
| 3294 __ subptr(len_reg, AESBlockSize); | |
| 3295 __ jcc(Assembler::notEqual, L_loopTop_128); | |
| 3296 | |
| 3297 __ BIND(L_exit); | |
| 3298 __ movdqu(Address(rvec, 0), xmm_result); // final value of r stored in rvec of CipherBlockChaining object | |
| 3299 | |
| 3300 #ifdef _WIN64 | |
| 3301 // restore xmm regs belonging to calling function | |
| 3302 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
| 3303 __ movdqu(as_XMMRegister(i), xmm_save(i)); | |
| 3304 } | |
| 3305 #endif | |
| 3306 __ movl(rax, 0); // return 0 (why?) | |
| 3307 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
| 3308 __ ret(0); | |
| 3309 | |
| 3310 __ BIND(L_key_192_256); | |
| 3311 // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256) | |
| 7427 | 3312 load_key(xmm_key11, key, 0xb0, xmm_key_shuf_mask); |
| 3313 load_key(xmm_key12, key, 0xc0, xmm_key_shuf_mask); | |
| 6894 | 3314 __ cmpl(rax, 52); |
| 3315 __ jcc(Assembler::notEqual, L_key_256); | |
| 3316 | |
| 3317 // 192-bit code follows here (could be changed to use more xmm registers) | |
| 3318 __ movptr(pos, 0); | |
| 3319 __ align(OptoLoopAlignment); | |
| 7427 | 3320 |
| 6894 | 3321 __ BIND(L_loopTop_192); |
| 3322 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
| 3323 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
| 3324 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
| 7427 | 3325 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_FIRST + 11; rnum++) { |
| 6894 | 3326 __ aesenc(xmm_result, as_XMMRegister(rnum)); |
| 3327 } | |
| 7427 | 3328 __ aesenclast(xmm_result, xmm_key12); |
| 6894 | 3329 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output |
| 3330 // no need to store r to memory until we exit | |
| 3331 __ addptr(pos, AESBlockSize); | |
| 3332 __ subptr(len_reg, AESBlockSize); | |
| 3333 __ jcc(Assembler::notEqual, L_loopTop_192); | |
| 3334 __ jmp(L_exit); | |
| 3335 | |
| 3336 __ BIND(L_key_256); | |
| 3337 // 256-bit code follows here (could be changed to use more xmm registers) | |
| 7427 | 3338 load_key(xmm_key13, key, 0xd0, xmm_key_shuf_mask); |
| 6894 | 3339 __ movptr(pos, 0); |
| 3340 __ align(OptoLoopAlignment); | |
| 7427 | 3341 |
| 6894 | 3342 __ BIND(L_loopTop_256); |
| 3343 __ movdqu(xmm_temp, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of input | |
| 3344 __ pxor (xmm_result, xmm_temp); // xor with the current r vector | |
| 3345 __ pxor (xmm_result, xmm_key0); // do the aes rounds | |
| 7427 | 3346 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_FIRST + 13; rnum++) { |
| 6894 | 3347 __ aesenc(xmm_result, as_XMMRegister(rnum)); |
| 3348 } | |
| 3349 load_key(xmm_temp, key, 0xe0); | |
| 3350 __ aesenclast(xmm_result, xmm_temp); | |
| 3351 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
| 3352 // no need to store r to memory until we exit | |
| 3353 __ addptr(pos, AESBlockSize); | |
| 3354 __ subptr(len_reg, AESBlockSize); | |
| 3355 __ jcc(Assembler::notEqual, L_loopTop_256); | |
| 3356 __ jmp(L_exit); | |
| 3357 | |
| 3358 return start; | |
| 3359 } | |
| 3360 | |
| 11127 | 3361 // Safefetch stubs. |
| 3362 void generate_safefetch(const char* name, int size, address* entry, | |
| 3363 address* fault_pc, address* continuation_pc) { | |
| 3364 // safefetch signatures: | |
| 3365 // int SafeFetch32(int* adr, int errValue); | |
| 3366 // intptr_t SafeFetchN (intptr_t* adr, intptr_t errValue); | |
| 3367 // | |
| 3368 // arguments: | |
| 3369 // c_rarg0 = adr | |
| 3370 // c_rarg1 = errValue | |
| 3371 // | |
| 3372 // result: | |
| 3373 // PPC_RET = *adr or errValue | |
| 3374 | |
| 3375 StubCodeMark mark(this, "StubRoutines", name); | |
| 3376 | |
| 3377 // Entry point, pc or function descriptor. | |
| 3378 *entry = __ pc(); | |
| 3379 | |
| 3380 // Load *adr into c_rarg1, may fault. | |
| 3381 *fault_pc = __ pc(); | |
| 3382 switch (size) { | |
| 3383 case 4: | |
| 3384 // int32_t | |
| 3385 __ movl(c_rarg1, Address(c_rarg0, 0)); | |
| 3386 break; | |
| 3387 case 8: | |
| 3388 // int64_t | |
| 3389 __ movq(c_rarg1, Address(c_rarg0, 0)); | |
| 3390 break; | |
| 3391 default: | |
| 3392 ShouldNotReachHere(); | |
| 3393 } | |
| 3394 | |
| 3395 // return errValue or *adr | |
| 3396 *continuation_pc = __ pc(); | |
| 3397 __ movq(rax, c_rarg1); | |
| 3398 __ ret(0); | |
| 3399 } | |
| 6894 | 3400 |
| 3401 // This is a version of CBC/AES Decrypt which does 4 blocks in a loop at a time | |
| 3402 // to hide instruction latency | |
| 3403 // | |
| 3404 // Arguments: | |
| 3405 // | |
| 3406 // Inputs: | |
| 3407 // c_rarg0 - source byte array address | |
| 3408 // c_rarg1 - destination byte array address | |
| 3409 // c_rarg2 - K (key) in little endian int array | |
| 3410 // c_rarg3 - r vector byte array address | |
| 3411 // c_rarg4 - input length | |
| 3412 // | |
| 3413 | |
| 3414 address generate_cipherBlockChaining_decryptAESCrypt_Parallel() { | |
| 7427 | 3415 assert(UseAES, "need AES instructions and misaligned SSE support"); |
| 6894 | 3416 __ align(CodeEntryAlignment); |
| 3417 StubCodeMark mark(this, "StubRoutines", "cipherBlockChaining_decryptAESCrypt"); | |
| 3418 address start = __ pc(); | |
| 3419 | |
| 3420 Label L_exit, L_key_192_256, L_key_256; | |
| 3421 Label L_singleBlock_loopTop_128, L_multiBlock_loopTop_128; | |
| 3422 Label L_singleBlock_loopTop_192, L_singleBlock_loopTop_256; | |
| 3423 const Register from = c_rarg0; // source array address | |
| 3424 const Register to = c_rarg1; // destination array address | |
| 3425 const Register key = c_rarg2; // key array address | |
| 3426 const Register rvec = c_rarg3; // r byte array initialized from initvector array address | |
| 3427 // and left with the results of the last encryption block | |
| 3428 #ifndef _WIN64 | |
| 3429 const Register len_reg = c_rarg4; // src len (must be multiple of blocksize 16) | |
| 3430 #else | |
| 3431 const Address len_mem(rsp, 6 * wordSize); // length is on stack on Win64 | |
| 3432 const Register len_reg = r10; // pick the first volatile windows register | |
| 3433 #endif | |
| 3434 const Register pos = rax; | |
| 3435 | |
| 3436 // keys 0-10 preloaded into xmm2-xmm12 | |
| 3437 const int XMM_REG_NUM_KEY_FIRST = 5; | |
| 3438 const int XMM_REG_NUM_KEY_LAST = 15; | |
| 7427 | 3439 const XMMRegister xmm_key_first = as_XMMRegister(XMM_REG_NUM_KEY_FIRST); |
| 6894 | 3440 const XMMRegister xmm_key_last = as_XMMRegister(XMM_REG_NUM_KEY_LAST); |
| 3441 | |
| 3442 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 3443 | |
| 3444 #ifdef _WIN64 | |
| 3445 // on win64, fill len_reg from stack position | |
| 3446 __ movl(len_reg, len_mem); | |
| 3447 // save the xmm registers which must be preserved 6-15 | |
| 3448 __ subptr(rsp, -rsp_after_call_off * wordSize); | |
| 3449 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
| 3450 __ movdqu(xmm_save(i), as_XMMRegister(i)); | |
| 3451 } | |
| 3452 #endif | |
| 3453 // the java expanded key ordering is rotated one position from what we want | |
| 3454 // so we start from 0x10 here and hit 0x00 last | |
| 3455 const XMMRegister xmm_key_shuf_mask = xmm1; // used temporarily to swap key bytes up front | |
| 3456 __ movdqu(xmm_key_shuf_mask, ExternalAddress(StubRoutines::x86::key_shuffle_mask_addr())); | |
| 3457 // load up xmm regs 5 thru 15 with key 0x10 - 0xa0 - 0x00 | |
| 7427 | 3458 for (int rnum = XMM_REG_NUM_KEY_FIRST, offset = 0x10; rnum < XMM_REG_NUM_KEY_LAST; rnum++) { |
| 6894 | 3459 load_key(as_XMMRegister(rnum), key, offset, xmm_key_shuf_mask); |
| 3460 offset += 0x10; | |
| 3461 } | |
| 7427 | 3462 load_key(xmm_key_last, key, 0x00, xmm_key_shuf_mask); |
| 6894 | 3463 |
| 3464 const XMMRegister xmm_prev_block_cipher = xmm1; // holds cipher of previous block | |
| 7427 | 3465 |
| 6894 | 3466 // registers holding the four results in the parallelized loop |
| 3467 const XMMRegister xmm_result0 = xmm0; | |
| 3468 const XMMRegister xmm_result1 = xmm2; | |
| 3469 const XMMRegister xmm_result2 = xmm3; | |
| 3470 const XMMRegister xmm_result3 = xmm4; | |
| 3471 | |
| 3472 __ movdqu(xmm_prev_block_cipher, Address(rvec, 0x00)); // initialize with initial rvec | |
| 3473 | |
| 3474 // now split to different paths depending on the keylen (len in ints of AESCrypt.KLE array (52=192, or 60=256)) | |
| 3475 __ movl(rax, Address(key, arrayOopDesc::length_offset_in_bytes() - arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 3476 __ cmpl(rax, 44); | |
| 3477 __ jcc(Assembler::notEqual, L_key_192_256); | |
| 3478 | |
| 3479 | |
| 3480 // 128-bit code follows here, parallelized | |
| 3481 __ movptr(pos, 0); | |
| 3482 __ align(OptoLoopAlignment); | |
| 3483 __ BIND(L_multiBlock_loopTop_128); | |
| 3484 __ cmpptr(len_reg, 4*AESBlockSize); // see if at least 4 blocks left | |
| 3485 __ jcc(Assembler::less, L_singleBlock_loopTop_128); | |
| 3486 | |
| 3487 __ movdqu(xmm_result0, Address(from, pos, Address::times_1, 0*AESBlockSize)); // get next 4 blocks into xmmresult registers | |
| 3488 __ movdqu(xmm_result1, Address(from, pos, Address::times_1, 1*AESBlockSize)); | |
| 3489 __ movdqu(xmm_result2, Address(from, pos, Address::times_1, 2*AESBlockSize)); | |
| 3490 __ movdqu(xmm_result3, Address(from, pos, Address::times_1, 3*AESBlockSize)); | |
| 3491 | |
| 3492 #define DoFour(opc, src_reg) \ | |
| 3493 __ opc(xmm_result0, src_reg); \ | |
| 3494 __ opc(xmm_result1, src_reg); \ | |
| 3495 __ opc(xmm_result2, src_reg); \ | |
| 3496 __ opc(xmm_result3, src_reg); | |
| 3497 | |
| 3498 DoFour(pxor, xmm_key_first); | |
| 3499 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
| 3500 DoFour(aesdec, as_XMMRegister(rnum)); | |
| 3501 } | |
| 3502 DoFour(aesdeclast, xmm_key_last); | |
| 3503 // for each result, xor with the r vector of previous cipher block | |
| 3504 __ pxor(xmm_result0, xmm_prev_block_cipher); | |
| 3505 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 0*AESBlockSize)); | |
| 3506 __ pxor(xmm_result1, xmm_prev_block_cipher); | |
| 3507 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 1*AESBlockSize)); | |
| 3508 __ pxor(xmm_result2, xmm_prev_block_cipher); | |
| 3509 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 2*AESBlockSize)); | |
| 3510 __ pxor(xmm_result3, xmm_prev_block_cipher); | |
| 3511 __ movdqu(xmm_prev_block_cipher, Address(from, pos, Address::times_1, 3*AESBlockSize)); // this will carry over to next set of blocks | |
| 3512 | |
| 3513 __ movdqu(Address(to, pos, Address::times_1, 0*AESBlockSize), xmm_result0); // store 4 results into the next 64 bytes of output | |
| 3514 __ movdqu(Address(to, pos, Address::times_1, 1*AESBlockSize), xmm_result1); | |
| 3515 __ movdqu(Address(to, pos, Address::times_1, 2*AESBlockSize), xmm_result2); | |
| 3516 __ movdqu(Address(to, pos, Address::times_1, 3*AESBlockSize), xmm_result3); | |
| 3517 | |
| 3518 __ addptr(pos, 4*AESBlockSize); | |
| 3519 __ subptr(len_reg, 4*AESBlockSize); | |
| 3520 __ jmp(L_multiBlock_loopTop_128); | |
| 3521 | |
| 3522 // registers used in the non-parallelized loops | |
| 7427 | 3523 // xmm register assignments for the loops below |
| 3524 const XMMRegister xmm_result = xmm0; | |
| 6894 | 3525 const XMMRegister xmm_prev_block_cipher_save = xmm2; |
| 7427 | 3526 const XMMRegister xmm_key11 = xmm3; |
| 3527 const XMMRegister xmm_key12 = xmm4; | |
| 3528 const XMMRegister xmm_temp = xmm4; | |
| 6894 | 3529 |
| 3530 __ align(OptoLoopAlignment); | |
| 3531 __ BIND(L_singleBlock_loopTop_128); | |
| 3532 __ cmpptr(len_reg, 0); // any blocks left?? | |
| 3533 __ jcc(Assembler::equal, L_exit); | |
| 3534 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input | |
| 3535 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector | |
| 3536 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
| 3537 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
| 3538 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
| 3539 } | |
| 3540 __ aesdeclast(xmm_result, xmm_key_last); | |
| 3541 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector | |
| 3542 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output | |
| 3543 // no need to store r to memory until we exit | |
| 3544 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block | |
| 3545 | |
| 3546 __ addptr(pos, AESBlockSize); | |
| 3547 __ subptr(len_reg, AESBlockSize); | |
| 3548 __ jmp(L_singleBlock_loopTop_128); | |
| 3549 | |
| 3550 | |
| 3551 __ BIND(L_exit); | |
| 3552 __ movdqu(Address(rvec, 0), xmm_prev_block_cipher); // final value of r stored in rvec of CipherBlockChaining object | |
| 3553 #ifdef _WIN64 | |
| 3554 // restore regs belonging to calling function | |
| 3555 for (int i = 6; i <= XMM_REG_NUM_KEY_LAST; i++) { | |
| 3556 __ movdqu(as_XMMRegister(i), xmm_save(i)); | |
| 3557 } | |
| 3558 #endif | |
| 3559 __ movl(rax, 0); // return 0 (why?) | |
| 3560 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
| 3561 __ ret(0); | |
| 3562 | |
| 3563 | |
| 3564 __ BIND(L_key_192_256); | |
| 3565 // here rax = len in ints of AESCrypt.KLE array (52=192, or 60=256) | |
| 7427 | 3566 load_key(xmm_key11, key, 0xb0); |
| 6894 | 3567 __ cmpl(rax, 52); |
| 3568 __ jcc(Assembler::notEqual, L_key_256); | |
| 3569 | |
| 3570 // 192-bit code follows here (could be optimized to use parallelism) | |
| 7427 | 3571 load_key(xmm_key12, key, 0xc0); // 192-bit key goes up to c0 |
| 6894 | 3572 __ movptr(pos, 0); |
| 3573 __ align(OptoLoopAlignment); | |
| 7427 | 3574 |
| 6894 | 3575 __ BIND(L_singleBlock_loopTop_192); |
| 3576 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input | |
| 3577 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector | |
| 3578 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
| 3579 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
| 3580 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
| 3581 } | |
| 7427 | 3582 __ aesdec(xmm_result, xmm_key11); |
| 3583 __ aesdec(xmm_result, xmm_key12); | |
| 6894 | 3584 __ aesdeclast(xmm_result, xmm_key_last); // xmm15 always came from key+0 |
| 3585 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector | |
| 7427 | 3586 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output |
| 6894 | 3587 // no need to store r to memory until we exit |
| 7427 | 3588 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block |
| 6894 | 3589 __ addptr(pos, AESBlockSize); |
| 3590 __ subptr(len_reg, AESBlockSize); | |
| 3591 __ jcc(Assembler::notEqual,L_singleBlock_loopTop_192); | |
| 3592 __ jmp(L_exit); | |
| 3593 | |
| 3594 __ BIND(L_key_256); | |
| 3595 // 256-bit code follows here (could be optimized to use parallelism) | |
| 3596 __ movptr(pos, 0); | |
| 3597 __ align(OptoLoopAlignment); | |
| 7427 | 3598 |
| 6894 | 3599 __ BIND(L_singleBlock_loopTop_256); |
| 7427 | 3600 __ movdqu(xmm_result, Address(from, pos, Address::times_1, 0)); // get next 16 bytes of cipher input |
| 6894 | 3601 __ movdqa(xmm_prev_block_cipher_save, xmm_result); // save for next r vector |
| 3602 __ pxor (xmm_result, xmm_key_first); // do the aes dec rounds | |
| 3603 for (int rnum = XMM_REG_NUM_KEY_FIRST + 1; rnum <= XMM_REG_NUM_KEY_LAST - 1; rnum++) { | |
| 3604 __ aesdec(xmm_result, as_XMMRegister(rnum)); | |
| 3605 } | |
| 7427 | 3606 __ aesdec(xmm_result, xmm_key11); |
| 3607 load_key(xmm_temp, key, 0xc0); | |
| 3608 __ aesdec(xmm_result, xmm_temp); | |
| 3609 load_key(xmm_temp, key, 0xd0); | |
| 3610 __ aesdec(xmm_result, xmm_temp); | |
| 3611 load_key(xmm_temp, key, 0xe0); // 256-bit key goes up to e0 | |
| 3612 __ aesdec(xmm_result, xmm_temp); | |
| 3613 __ aesdeclast(xmm_result, xmm_key_last); // xmm15 came from key+0 | |
| 6894 | 3614 __ pxor (xmm_result, xmm_prev_block_cipher); // xor with the current r vector |
| 7427 | 3615 __ movdqu(Address(to, pos, Address::times_1, 0), xmm_result); // store into the next 16 bytes of output |
| 6894 | 3616 // no need to store r to memory until we exit |
| 7427 | 3617 __ movdqa(xmm_prev_block_cipher, xmm_prev_block_cipher_save); // set up next r vector with cipher input from this block |
| 6894 | 3618 __ addptr(pos, AESBlockSize); |
| 3619 __ subptr(len_reg, AESBlockSize); | |
| 3620 __ jcc(Assembler::notEqual,L_singleBlock_loopTop_256); | |
| 3621 __ jmp(L_exit); | |
| 3622 | |
| 3623 return start; | |
| 3624 } | |
| 3625 | |
|
11080
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3626 /** |
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3627 * Arguments: |
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3628 * |
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3629 * Inputs: |
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3630 * c_rarg0 - int crc |
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3631 * c_rarg1 - byte* buf |
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3632 * c_rarg2 - int length |
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3633 * |
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3634 * Ouput: |
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3635 * rax - int crc result |
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3636 */ |
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3637 address generate_updateBytesCRC32() { |
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3638 assert(UseCRC32Intrinsics, "need AVX and CLMUL instructions"); |
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3639 |
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3640 __ align(CodeEntryAlignment); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3641 StubCodeMark mark(this, "StubRoutines", "updateBytesCRC32"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3642 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3643 address start = __ pc(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3644 // Win64: rcx, rdx, r8, r9 (c_rarg0, c_rarg1, ...) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3645 // Unix: rdi, rsi, rdx, rcx, r8, r9 (c_rarg0, c_rarg1, ...) |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3646 // rscratch1: r10 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3647 const Register crc = c_rarg0; // crc |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3648 const Register buf = c_rarg1; // source java byte array address |
|
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7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3649 const Register len = c_rarg2; // length |
|
11276
abba25b953a2
backed out 11242:2d4df4c43ae2 (GRAAL-413)
Doug Simon <doug.simon@oracle.com>
parents:
11246
diff
changeset
|
3650 const Register table = c_rarg3; // crc_table address (reuse register) |
|
abba25b953a2
backed out 11242:2d4df4c43ae2 (GRAAL-413)
Doug Simon <doug.simon@oracle.com>
parents:
11246
diff
changeset
|
3651 const Register tmp = r11; |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3652 assert_different_registers(crc, buf, len, table, tmp, rax); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3653 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3654 BLOCK_COMMENT("Entry:"); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3655 __ enter(); // required for proper stackwalking of RuntimeStub frame |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3656 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3657 __ kernel_crc32(crc, buf, len, table, tmp); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3658 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3659 __ movl(rax, crc); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3660 __ leave(); // required for proper stackwalking of RuntimeStub frame |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3661 __ ret(0); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3662 |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3663 return start; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3664 } |
| 6894 | 3665 |
| 0 | 3666 #undef __ |
| 3667 #define __ masm-> | |
| 3668 | |
| 3669 // Continuation point for throwing of implicit exceptions that are | |
| 3670 // not handled in the current activation. Fabricates an exception | |
| 3671 // oop and initiates normal exception dispatching in this | |
| 3672 // frame. Since we need to preserve callee-saved values (currently | |
| 3673 // only for C2, but done for C1 as well) we need a callee-saved oop | |
| 3674 // map and therefore have to make these stubs into RuntimeStubs | |
| 3675 // rather than BufferBlobs. If the compiler needs all registers to | |
| 3676 // be preserved between the fault point and the exception handler | |
| 3677 // then it must assume responsibility for that in | |
| 3678 // AbstractCompiler::continuation_for_implicit_null_exception or | |
| 3679 // continuation_for_implicit_division_by_zero_exception. All other | |
| 3680 // implicit exceptions (e.g., NullPointerException or | |
| 3681 // AbstractMethodError on entry) are either at call sites or | |
| 3682 // otherwise assume that stack unwinding will be initiated, so | |
| 3683 // caller saved registers were assumed volatile in the compiler. | |
| 3684 address generate_throw_exception(const char* name, | |
| 3685 address runtime_entry, | |
|
3451
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3686 Register arg1 = noreg, |
|
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3687 Register arg2 = noreg) { |
| 0 | 3688 // Information about frame layout at time of blocking runtime call. |
| 3689 // Note that we only have to preserve callee-saved registers since | |
| 3690 // the compilers are responsible for supplying a continuation point | |
| 3691 // if they expect all registers to be preserved. | |
| 3692 enum layout { | |
| 3693 rbp_off = frame::arg_reg_save_area_bytes/BytesPerInt, | |
| 3694 rbp_off2, | |
| 3695 return_off, | |
| 3696 return_off2, | |
| 3697 framesize // inclusive of return address | |
| 3698 }; | |
| 3699 | |
| 3700 int insts_size = 512; | |
| 3701 int locs_size = 64; | |
| 3702 | |
| 3703 CodeBuffer code(name, insts_size, locs_size); | |
| 3704 OopMapSet* oop_maps = new OopMapSet(); | |
| 3705 MacroAssembler* masm = new MacroAssembler(&code); | |
| 3706 | |
| 3707 address start = __ pc(); | |
| 3708 | |
| 3709 // This is an inlined and slightly modified version of call_VM | |
| 3710 // which has the ability to fetch the return PC out of | |
| 3711 // thread-local storage and also sets up last_Java_sp slightly | |
| 3712 // differently than the real call_VM | |
| 3713 | |
| 3714 __ enter(); // required for proper stackwalking of RuntimeStub frame | |
| 3715 | |
| 3716 assert(is_even(framesize/2), "sp not 16-byte aligned"); | |
| 3717 | |
| 3718 // return address and rbp are already in place | |
| 304 | 3719 __ subptr(rsp, (framesize-4) << LogBytesPerInt); // prolog |
| 0 | 3720 |
| 3721 int frame_complete = __ pc() - start; | |
| 3722 | |
| 3723 // Set up last_Java_sp and last_Java_fp | |
|
4895
c742b0b47fe5
7119286: JSR292: SIGSEGV in JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
roland
parents:
4771
diff
changeset
|
3724 address the_pc = __ pc(); |
|
c742b0b47fe5
7119286: JSR292: SIGSEGV in JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
roland
parents:
4771
diff
changeset
|
3725 __ set_last_Java_frame(rsp, rbp, the_pc); |
|
c742b0b47fe5
7119286: JSR292: SIGSEGV in JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
roland
parents:
4771
diff
changeset
|
3726 __ andptr(rsp, -(StackAlignmentInBytes)); // Align stack |
| 0 | 3727 |
| 3728 // Call runtime | |
|
3451
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3729 if (arg1 != noreg) { |
|
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3730 assert(arg2 != c_rarg1, "clobbered"); |
|
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3731 __ movptr(c_rarg1, arg1); |
|
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3732 } |
|
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3733 if (arg2 != noreg) { |
|
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3734 __ movptr(c_rarg2, arg2); |
|
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3735 } |
| 304 | 3736 __ movptr(c_rarg0, r15_thread); |
| 0 | 3737 BLOCK_COMMENT("call runtime_entry"); |
| 3738 __ call(RuntimeAddress(runtime_entry)); | |
| 3739 | |
| 3740 // Generate oop map | |
| 3741 OopMap* map = new OopMap(framesize, 0); | |
| 3742 | |
|
4941
b522995d91f0
7144405: JumbleGC002 assert(m->offset() == pc_offset) failed: oopmap not found
roland
parents:
4895
diff
changeset
|
3743 oop_maps->add_gc_map(the_pc - start, map); |
| 0 | 3744 |
|
4895
c742b0b47fe5
7119286: JSR292: SIGSEGV in JNIHandleBlock::release_block(JNIHandleBlock*, Thread*)+0x3c
roland
parents:
4771
diff
changeset
|
3745 __ reset_last_Java_frame(true, true); |
| 0 | 3746 |
| 3747 __ leave(); // required for proper stackwalking of RuntimeStub frame | |
| 3748 | |
| 3749 // check for pending exceptions | |
| 3750 #ifdef ASSERT | |
| 3751 Label L; | |
| 304 | 3752 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), |
| 3753 (int32_t) NULL_WORD); | |
| 0 | 3754 __ jcc(Assembler::notEqual, L); |
| 3755 __ should_not_reach_here(); | |
| 3756 __ bind(L); | |
| 3757 #endif // ASSERT | |
| 3758 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry())); | |
| 3759 | |
| 3760 | |
| 3761 // codeBlob framesize is in words (not VMRegImpl::slot_size) | |
| 3762 RuntimeStub* stub = | |
| 3763 RuntimeStub::new_runtime_stub(name, | |
| 3764 &code, | |
| 3765 frame_complete, | |
| 3766 (framesize >> (LogBytesPerWord - LogBytesPerInt)), | |
| 3767 oop_maps, false); | |
| 3768 return stub->entry_point(); | |
| 3769 } | |
| 3770 | |
|
11166
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3771 void create_control_words() { |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3772 // Round to nearest, 53-bit mode, exceptions masked |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3773 StubRoutines::_fpu_cntrl_wrd_std = 0x027F; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3774 // Round to zero, 53-bit mode, exception mased |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3775 StubRoutines::_fpu_cntrl_wrd_trunc = 0x0D7F; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3776 // Round to nearest, 24-bit mode, exceptions masked |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3777 StubRoutines::_fpu_cntrl_wrd_24 = 0x007F; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3778 // Round to nearest, 64-bit mode, exceptions masked |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3779 StubRoutines::_fpu_cntrl_wrd_64 = 0x037F; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3780 // Round to nearest, 64-bit mode, exceptions masked |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3781 StubRoutines::_mxcsr_std = 0x1F80; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3782 // Note: the following two constants are 80-bit values |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3783 // layout is critical for correct loading by FPU. |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3784 // Bias for strict fp multiply/divide |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3785 StubRoutines::_fpu_subnormal_bias1[0]= 0x00000000; // 2^(-15360) == 0x03ff 8000 0000 0000 0000 |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3786 StubRoutines::_fpu_subnormal_bias1[1]= 0x80000000; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3787 StubRoutines::_fpu_subnormal_bias1[2]= 0x03ff; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3788 // Un-Bias for strict fp multiply/divide |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3789 StubRoutines::_fpu_subnormal_bias2[0]= 0x00000000; // 2^(+15360) == 0x7bff 8000 0000 0000 0000 |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3790 StubRoutines::_fpu_subnormal_bias2[1]= 0x80000000; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3791 StubRoutines::_fpu_subnormal_bias2[2]= 0x7bff; |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3792 } |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3793 |
| 0 | 3794 // Initialization |
| 3795 void generate_initial() { | |
| 3796 // Generates all stubs and initializes the entry points | |
| 3797 | |
|
11166
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3798 // This platform-specific settings are needed by generate_call_stub() |
|
0f57ccdb9084
8020433: Crash when using -XX:+RestoreMXCSROnJNICalls
kvn
parents:
11080
diff
changeset
|
3799 create_control_words(); |
| 0 | 3800 |
| 3801 // entry points that exist in all platforms Note: This is code | |
| 3802 // that could be shared among different platforms - however the | |
| 3803 // benefit seems to be smaller than the disadvantage of having a | |
| 3804 // much more complicated generator structure. See also comment in | |
| 3805 // stubRoutines.hpp. | |
| 3806 | |
| 3807 StubRoutines::_forward_exception_entry = generate_forward_exception(); | |
| 3808 | |
| 3809 StubRoutines::_call_stub_entry = | |
| 3810 generate_call_stub(StubRoutines::_call_stub_return_address); | |
| 3811 | |
| 3812 // is referenced by megamorphic call | |
| 3813 StubRoutines::_catch_exception_entry = generate_catch_exception(); | |
| 3814 | |
| 3815 // atomic calls | |
| 3816 StubRoutines::_atomic_xchg_entry = generate_atomic_xchg(); | |
| 3817 StubRoutines::_atomic_xchg_ptr_entry = generate_atomic_xchg_ptr(); | |
| 3818 StubRoutines::_atomic_cmpxchg_entry = generate_atomic_cmpxchg(); | |
| 3819 StubRoutines::_atomic_cmpxchg_long_entry = generate_atomic_cmpxchg_long(); | |
| 3820 StubRoutines::_atomic_add_entry = generate_atomic_add(); | |
| 3821 StubRoutines::_atomic_add_ptr_entry = generate_atomic_add_ptr(); | |
| 3822 StubRoutines::_fence_entry = generate_orderaccess_fence(); | |
| 3823 | |
| 3824 StubRoutines::_handler_for_unsafe_access_entry = | |
| 3825 generate_handler_for_unsafe_access(); | |
| 3826 | |
| 3827 // platform dependent | |
| 304 | 3828 StubRoutines::x86::_get_previous_fp_entry = generate_get_previous_fp(); |
|
5903
da4be62fb889
7147740: add assertions to check stack alignment on VM entry from generated code (x64)
roland
parents:
4941
diff
changeset
|
3829 StubRoutines::x86::_get_previous_sp_entry = generate_get_previous_sp(); |
| 304 | 3830 |
| 3831 StubRoutines::x86::_verify_mxcsr_entry = generate_verify_mxcsr(); | |
|
3451
38fa55e5e792
7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents:
2409
diff
changeset
|
3832 |
| 4743 | 3833 // Build this early so it's available for the interpreter. |
| 3834 StubRoutines::_throw_StackOverflowError_entry = | |
| 3835 generate_throw_exception("StackOverflowError throw_exception", | |
| 3836 CAST_FROM_FN_PTR(address, | |
| 3837 SharedRuntime:: | |
| 3838 throw_StackOverflowError)); | |
|
11080
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3839 if (UseCRC32Intrinsics) { |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3840 // set table address before stub generation which use it |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3841 StubRoutines::_crc_table_adr = (address)StubRoutines::x86::_crc_table; |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3842 StubRoutines::_updateBytesCRC32 = generate_updateBytesCRC32(); |
|
b800986664f4
7088419: Use x86 Hardware CRC32 Instruction with java.util.zip.CRC32
drchase
parents:
10973
diff
changeset
|
3843 } |
| 0 | 3844 } |
| 3845 | |
| 3846 void generate_all() { | |
| 3847 // Generates all stubs and initializes the entry points | |
| 3848 | |
| 3849 // These entry points require SharedInfo::stack0 to be set up in | |
| 3850 // non-core builds and need to be relocatable, so they each | |
| 3851 // fabricate a RuntimeStub internally. | |
| 3852 StubRoutines::_throw_AbstractMethodError_entry = | |
| 3853 generate_throw_exception("AbstractMethodError throw_exception", | |
| 3854 CAST_FROM_FN_PTR(address, | |
| 3855 SharedRuntime:: | |
| 3937 | 3856 throw_AbstractMethodError)); |
| 0 | 3857 |
|
16
f8236e79048a
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
0
diff
changeset
|
3858 StubRoutines::_throw_IncompatibleClassChangeError_entry = |
|
f8236e79048a
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
0
diff
changeset
|
3859 generate_throw_exception("IncompatibleClassChangeError throw_exception", |
|
f8236e79048a
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
0
diff
changeset
|
3860 CAST_FROM_FN_PTR(address, |
|
f8236e79048a
6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents:
0
diff
changeset
|
3861 SharedRuntime:: |
| 3937 | 3862 throw_IncompatibleClassChangeError)); |
| 0 | 3863 |
|
10479
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
3864 StubRoutines::_throw_InvalidInstalledCodeException_entry = |
|
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
3865 generate_throw_exception("InvalidInstalledCodeException throw_exception", |
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40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
3866 CAST_FROM_FN_PTR(address, |
|
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
3867 SharedRuntime:: |
|
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
3868 throw_InvalidInstalledCodeException)); |
|
40b8c383bc31
Throw InvalidInstalledCodeException directly in the stubs.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
10408
diff
changeset
|
3869 |
| 0 | 3870 StubRoutines::_throw_NullPointerException_at_call_entry = |
| 3871 generate_throw_exception("NullPointerException at call throw_exception", | |
| 3872 CAST_FROM_FN_PTR(address, | |
| 3873 SharedRuntime:: | |
| 3937 | 3874 throw_NullPointerException_at_call)); |
| 0 | 3875 |
| 3876 // entry points that are platform specific | |
| 304 | 3877 StubRoutines::x86::_f2i_fixup = generate_f2i_fixup(); |
| 3878 StubRoutines::x86::_f2l_fixup = generate_f2l_fixup(); | |
| 3879 StubRoutines::x86::_d2i_fixup = generate_d2i_fixup(); | |
| 3880 StubRoutines::x86::_d2l_fixup = generate_d2l_fixup(); | |
| 3881 | |
| 3882 StubRoutines::x86::_float_sign_mask = generate_fp_mask("float_sign_mask", 0x7FFFFFFF7FFFFFFF); | |
| 3883 StubRoutines::x86::_float_sign_flip = generate_fp_mask("float_sign_flip", 0x8000000080000000); | |
| 3884 StubRoutines::x86::_double_sign_mask = generate_fp_mask("double_sign_mask", 0x7FFFFFFFFFFFFFFF); | |
| 3885 StubRoutines::x86::_double_sign_flip = generate_fp_mask("double_sign_flip", 0x8000000000000000); | |
| 0 | 3886 |
| 3887 // support for verify_oop (must happen after universe_init) | |
| 3888 StubRoutines::_verify_oop_subroutine_entry = generate_verify_oop(); | |
| 3889 | |
| 3890 // arraycopy stubs used by compilers | |
| 3891 generate_arraycopy_stubs(); | |
| 1108 | 3892 |
|
1174
ddb7834449d0
6849984: Value methods for platform dependent math functions constant fold incorrectly
never
parents:
1108
diff
changeset
|
3893 generate_math_stubs(); |
| 6894 | 3894 |
| 3895 // don't bother generating these AES intrinsic stubs unless global flag is set | |
| 3896 if (UseAESIntrinsics) { | |
| 3897 StubRoutines::x86::_key_shuffle_mask_addr = generate_key_shuffle_mask(); // needed by the others | |
| 3898 | |
| 3899 StubRoutines::_aescrypt_encryptBlock = generate_aescrypt_encryptBlock(); | |
| 3900 StubRoutines::_aescrypt_decryptBlock = generate_aescrypt_decryptBlock(); | |
| 3901 StubRoutines::_cipherBlockChaining_encryptAESCrypt = generate_cipherBlockChaining_encryptAESCrypt(); | |
| 3902 StubRoutines::_cipherBlockChaining_decryptAESCrypt = generate_cipherBlockChaining_decryptAESCrypt_Parallel(); | |
| 3903 } | |
| 11127 | 3904 |
| 3905 // Safefetch stubs. | |
| 3906 generate_safefetch("SafeFetch32", sizeof(int), &StubRoutines::_safefetch32_entry, | |
| 3907 &StubRoutines::_safefetch32_fault_pc, | |
| 3908 &StubRoutines::_safefetch32_continuation_pc); | |
| 3909 generate_safefetch("SafeFetchN", sizeof(intptr_t), &StubRoutines::_safefetchN_entry, | |
| 3910 &StubRoutines::_safefetchN_fault_pc, | |
| 3911 &StubRoutines::_safefetchN_continuation_pc); | |
| 0 | 3912 } |
| 3913 | |
| 3914 public: | |
| 3915 StubGenerator(CodeBuffer* code, bool all) : StubCodeGenerator(code) { | |
| 3916 if (all) { | |
| 3917 generate_all(); | |
| 3918 } else { | |
| 3919 generate_initial(); | |
| 3920 } | |
| 3921 } | |
| 3922 }; // end class declaration | |
| 3923 | |
| 3924 void StubGenerator_generate(CodeBuffer* code, bool all) { | |
| 3925 StubGenerator g(code, all); | |
| 3926 } |