Mercurial > hg > truffle
annotate src/cpu/x86/vm/c1_Runtime1_x86.cpp @ 4559:723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Use the --vm option instead of a special -vm option in the bench command
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 10 Feb 2012 17:04:03 +0100 |
| parents | e0a4668c57a2 |
| children | e29339f342de |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2011, 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/assembler.hpp" |
| 1972 | 27 #include "c1/c1_Defs.hpp" |
| 28 #include "c1/c1_MacroAssembler.hpp" | |
| 29 #include "c1/c1_Runtime1.hpp" | |
| 30 #include "interpreter/interpreter.hpp" | |
| 31 #include "nativeInst_x86.hpp" | |
| 32 #include "oops/compiledICHolderOop.hpp" | |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "prims/jvmtiExport.hpp" | |
| 35 #include "register_x86.hpp" | |
| 36 #include "runtime/sharedRuntime.hpp" | |
| 37 #include "runtime/signature.hpp" | |
| 38 #include "runtime/vframeArray.hpp" | |
| 39 #include "vmreg_x86.inline.hpp" | |
| 0 | 40 |
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41 static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true); |
| 0 | 42 |
| 43 // Implementation of StubAssembler | |
| 44 | |
| 45 int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, int args_size) { | |
| 46 // setup registers | |
| 304 | 47 const Register thread = NOT_LP64(rdi) LP64_ONLY(r15_thread); // is callee-saved register (Visual C++ calling conventions) |
| 0 | 48 assert(!(oop_result1->is_valid() || oop_result2->is_valid()) || oop_result1 != oop_result2, "registers must be different"); |
| 49 assert(oop_result1 != thread && oop_result2 != thread, "registers must be different"); | |
| 50 assert(args_size >= 0, "illegal args_size"); | |
| 51 | |
| 304 | 52 #ifdef _LP64 |
| 53 mov(c_rarg0, thread); | |
| 54 set_num_rt_args(0); // Nothing on stack | |
| 55 #else | |
| 0 | 56 set_num_rt_args(1 + args_size); |
| 57 | |
| 58 // push java thread (becomes first argument of C function) | |
| 59 get_thread(thread); | |
| 304 | 60 push(thread); |
| 61 #endif // _LP64 | |
| 0 | 62 |
| 63 set_last_Java_frame(thread, noreg, rbp, NULL); | |
| 304 | 64 |
| 0 | 65 // do the call |
| 66 call(RuntimeAddress(entry)); | |
| 67 int call_offset = offset(); | |
| 68 // verify callee-saved register | |
| 69 #ifdef ASSERT | |
| 70 guarantee(thread != rax, "change this code"); | |
| 304 | 71 push(rax); |
| 0 | 72 { Label L; |
| 73 get_thread(rax); | |
| 304 | 74 cmpptr(thread, rax); |
| 0 | 75 jcc(Assembler::equal, L); |
| 76 int3(); | |
| 77 stop("StubAssembler::call_RT: rdi not callee saved?"); | |
| 78 bind(L); | |
| 79 } | |
| 304 | 80 pop(rax); |
| 0 | 81 #endif |
| 82 reset_last_Java_frame(thread, true, false); | |
| 83 | |
| 84 // discard thread and arguments | |
| 304 | 85 NOT_LP64(addptr(rsp, num_rt_args()*BytesPerWord)); |
| 0 | 86 |
| 87 // check for pending exceptions | |
| 88 { Label L; | |
| 304 | 89 cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 90 jcc(Assembler::equal, L); |
| 91 // exception pending => remove activation and forward to exception handler | |
| 304 | 92 movptr(rax, Address(thread, Thread::pending_exception_offset())); |
| 0 | 93 // make sure that the vm_results are cleared |
| 94 if (oop_result1->is_valid()) { | |
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95 movptr(Address(thread, JavaThread::vm_result_offset()), NULL_WORD); |
| 0 | 96 } |
| 97 if (oop_result2->is_valid()) { | |
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98 movptr(Address(thread, JavaThread::vm_result_2_offset()), NULL_WORD); |
| 0 | 99 } |
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100 // (tw) Deoptimize in case of an exception. |
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101 restore_live_registers(this, false); |
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102 movptr(Address(thread, Thread::pending_exception_offset()), NULL_WORD); |
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103 leave(); |
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104 movl(rscratch1, 2); // InvalidateRecompile |
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105 jump(RuntimeAddress(SharedRuntime::deopt_blob()->uncommon_trap())); |
| 0 | 106 bind(L); |
| 107 } | |
| 108 // get oop results if there are any and reset the values in the thread | |
| 109 if (oop_result1->is_valid()) { | |
| 304 | 110 movptr(oop_result1, Address(thread, JavaThread::vm_result_offset())); |
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111 movptr(Address(thread, JavaThread::vm_result_offset()), NULL_WORD); |
| 0 | 112 verify_oop(oop_result1); |
| 113 } | |
| 114 if (oop_result2->is_valid()) { | |
| 304 | 115 movptr(oop_result2, Address(thread, JavaThread::vm_result_2_offset())); |
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116 movptr(Address(thread, JavaThread::vm_result_2_offset()), NULL_WORD); |
| 0 | 117 verify_oop(oop_result2); |
| 118 } | |
| 119 return call_offset; | |
| 120 } | |
| 121 | |
| 122 | |
| 123 int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1) { | |
| 304 | 124 #ifdef _LP64 |
| 125 mov(c_rarg1, arg1); | |
| 126 #else | |
| 127 push(arg1); | |
| 128 #endif // _LP64 | |
| 0 | 129 return call_RT(oop_result1, oop_result2, entry, 1); |
| 130 } | |
| 131 | |
| 132 | |
| 133 int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2) { | |
| 304 | 134 #ifdef _LP64 |
| 135 if (c_rarg1 == arg2) { | |
| 136 if (c_rarg2 == arg1) { | |
| 137 xchgq(arg1, arg2); | |
| 138 } else { | |
| 139 mov(c_rarg2, arg2); | |
| 140 mov(c_rarg1, arg1); | |
| 141 } | |
| 142 } else { | |
| 143 mov(c_rarg1, arg1); | |
| 144 mov(c_rarg2, arg2); | |
| 145 } | |
| 146 #else | |
| 147 push(arg2); | |
| 148 push(arg1); | |
| 149 #endif // _LP64 | |
| 0 | 150 return call_RT(oop_result1, oop_result2, entry, 2); |
| 151 } | |
| 152 | |
| 153 | |
| 154 int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2, Register arg3) { | |
| 304 | 155 #ifdef _LP64 |
| 156 // if there is any conflict use the stack | |
| 157 if (arg1 == c_rarg2 || arg1 == c_rarg3 || | |
| 158 arg2 == c_rarg1 || arg1 == c_rarg3 || | |
| 159 arg3 == c_rarg1 || arg1 == c_rarg2) { | |
| 160 push(arg3); | |
| 161 push(arg2); | |
| 162 push(arg1); | |
| 163 pop(c_rarg1); | |
| 164 pop(c_rarg2); | |
| 165 pop(c_rarg3); | |
| 166 } else { | |
| 167 mov(c_rarg1, arg1); | |
| 168 mov(c_rarg2, arg2); | |
| 169 mov(c_rarg3, arg3); | |
| 170 } | |
| 171 #else | |
| 172 push(arg3); | |
| 173 push(arg2); | |
| 174 push(arg1); | |
| 175 #endif // _LP64 | |
| 0 | 176 return call_RT(oop_result1, oop_result2, entry, 3); |
| 177 } | |
| 178 | |
| 179 | |
| 180 // Implementation of StubFrame | |
| 181 | |
| 182 class StubFrame: public StackObj { | |
| 183 private: | |
| 184 StubAssembler* _sasm; | |
| 185 | |
| 186 public: | |
| 187 StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments); | |
| 188 void load_argument(int offset_in_words, Register reg); | |
| 189 | |
| 190 ~StubFrame(); | |
| 191 }; | |
| 192 | |
| 193 | |
| 194 #define __ _sasm-> | |
| 195 | |
| 196 StubFrame::StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments) { | |
| 197 _sasm = sasm; | |
| 198 __ set_info(name, must_gc_arguments); | |
| 199 __ enter(); | |
| 200 } | |
| 201 | |
| 202 // load parameters that were stored with LIR_Assembler::store_parameter | |
| 203 // Note: offsets for store_parameter and load_argument must match | |
| 204 void StubFrame::load_argument(int offset_in_words, Register reg) { | |
| 205 // rbp, + 0: link | |
| 206 // + 1: return address | |
| 207 // + 2: argument with offset 0 | |
| 208 // + 3: argument with offset 1 | |
| 209 // + 4: ... | |
| 210 | |
| 304 | 211 __ movptr(reg, Address(rbp, (offset_in_words + 2) * BytesPerWord)); |
| 0 | 212 } |
| 213 | |
| 214 | |
| 215 StubFrame::~StubFrame() { | |
| 216 __ leave(); | |
| 217 __ ret(0); | |
| 218 } | |
| 219 | |
| 220 #undef __ | |
| 221 | |
| 222 | |
| 223 // Implementation of Runtime1 | |
| 224 | |
| 225 #define __ sasm-> | |
| 226 | |
| 304 | 227 const int float_regs_as_doubles_size_in_slots = pd_nof_fpu_regs_frame_map * 2; |
| 228 const int xmm_regs_as_doubles_size_in_slots = FrameMap::nof_xmm_regs * 2; | |
| 0 | 229 |
| 230 // Stack layout for saving/restoring all the registers needed during a runtime | |
| 231 // call (this includes deoptimization) | |
| 232 // Note: note that users of this frame may well have arguments to some runtime | |
| 233 // while these values are on the stack. These positions neglect those arguments | |
| 234 // but the code in save_live_registers will take the argument count into | |
| 235 // account. | |
| 236 // | |
| 304 | 237 #ifdef _LP64 |
| 238 #define SLOT2(x) x, | |
| 239 #define SLOT_PER_WORD 2 | |
| 240 #else | |
| 241 #define SLOT2(x) | |
| 242 #define SLOT_PER_WORD 1 | |
| 243 #endif // _LP64 | |
| 244 | |
| 0 | 245 enum reg_save_layout { |
| 304 | 246 // 64bit needs to keep stack 16 byte aligned. So we add some alignment dummies to make that |
| 247 // happen and will assert if the stack size we create is misaligned | |
| 248 #ifdef _LP64 | |
| 249 align_dummy_0, align_dummy_1, | |
| 250 #endif // _LP64 | |
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251 #ifdef _WIN64 |
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252 // Windows always allocates space for it's argument registers (see |
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253 // frame::arg_reg_save_area_bytes). |
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254 arg_reg_save_1, arg_reg_save_1H, // 0, 4 |
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255 arg_reg_save_2, arg_reg_save_2H, // 8, 12 |
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256 arg_reg_save_3, arg_reg_save_3H, // 16, 20 |
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257 arg_reg_save_4, arg_reg_save_4H, // 24, 28 |
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258 #endif // _WIN64 |
| 304 | 259 xmm_regs_as_doubles_off, // 32 |
| 260 float_regs_as_doubles_off = xmm_regs_as_doubles_off + xmm_regs_as_doubles_size_in_slots, // 160 | |
| 261 fpu_state_off = float_regs_as_doubles_off + float_regs_as_doubles_size_in_slots, // 224 | |
| 262 // fpu_state_end_off is exclusive | |
| 263 fpu_state_end_off = fpu_state_off + (FPUStateSizeInWords / SLOT_PER_WORD), // 352 | |
| 264 marker = fpu_state_end_off, SLOT2(markerH) // 352, 356 | |
| 265 extra_space_offset, // 360 | |
| 266 #ifdef _LP64 | |
| 267 r15_off = extra_space_offset, r15H_off, // 360, 364 | |
| 268 r14_off, r14H_off, // 368, 372 | |
| 269 r13_off, r13H_off, // 376, 380 | |
| 270 r12_off, r12H_off, // 384, 388 | |
| 271 r11_off, r11H_off, // 392, 396 | |
| 272 r10_off, r10H_off, // 400, 404 | |
| 273 r9_off, r9H_off, // 408, 412 | |
| 274 r8_off, r8H_off, // 416, 420 | |
| 275 rdi_off, rdiH_off, // 424, 428 | |
| 276 #else | |
| 0 | 277 rdi_off = extra_space_offset, |
| 304 | 278 #endif // _LP64 |
| 279 rsi_off, SLOT2(rsiH_off) // 432, 436 | |
| 280 rbp_off, SLOT2(rbpH_off) // 440, 444 | |
| 281 rsp_off, SLOT2(rspH_off) // 448, 452 | |
| 282 rbx_off, SLOT2(rbxH_off) // 456, 460 | |
| 283 rdx_off, SLOT2(rdxH_off) // 464, 468 | |
| 284 rcx_off, SLOT2(rcxH_off) // 472, 476 | |
| 285 rax_off, SLOT2(raxH_off) // 480, 484 | |
| 286 saved_rbp_off, SLOT2(saved_rbpH_off) // 488, 492 | |
| 287 return_off, SLOT2(returnH_off) // 496, 500 | |
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288 reg_save_frame_size // As noted: neglects any parameters to runtime // 504 |
| 0 | 289 }; |
| 290 | |
| 291 | |
| 292 | |
| 293 // Save off registers which might be killed by calls into the runtime. | |
| 294 // Tries to smart of about FP registers. In particular we separate | |
| 295 // saving and describing the FPU registers for deoptimization since we | |
| 296 // have to save the FPU registers twice if we describe them and on P4 | |
| 297 // saving FPU registers which don't contain anything appears | |
| 298 // expensive. The deopt blob is the only thing which needs to | |
| 299 // describe FPU registers. In all other cases it should be sufficient | |
| 300 // to simply save their current value. | |
| 301 | |
| 302 static OopMap* generate_oop_map(StubAssembler* sasm, int num_rt_args, | |
| 303 bool save_fpu_registers = true) { | |
| 304 | 304 |
| 305 // In 64bit all the args are in regs so there are no additional stack slots | |
| 306 LP64_ONLY(num_rt_args = 0); | |
| 307 LP64_ONLY(assert((reg_save_frame_size * VMRegImpl::stack_slot_size) % 16 == 0, "must be 16 byte aligned");) | |
| 308 int frame_size_in_slots = reg_save_frame_size + num_rt_args; // args + thread | |
| 309 sasm->set_frame_size(frame_size_in_slots / VMRegImpl::slots_per_word ); | |
| 0 | 310 |
| 311 // record saved value locations in an OopMap | |
| 312 // locations are offsets from sp after runtime call; num_rt_args is number of arguments in call, including thread | |
| 304 | 313 OopMap* map = new OopMap(frame_size_in_slots, 0); |
| 0 | 314 map->set_callee_saved(VMRegImpl::stack2reg(rax_off + num_rt_args), rax->as_VMReg()); |
| 315 map->set_callee_saved(VMRegImpl::stack2reg(rcx_off + num_rt_args), rcx->as_VMReg()); | |
| 316 map->set_callee_saved(VMRegImpl::stack2reg(rdx_off + num_rt_args), rdx->as_VMReg()); | |
| 317 map->set_callee_saved(VMRegImpl::stack2reg(rbx_off + num_rt_args), rbx->as_VMReg()); | |
| 318 map->set_callee_saved(VMRegImpl::stack2reg(rsi_off + num_rt_args), rsi->as_VMReg()); | |
| 319 map->set_callee_saved(VMRegImpl::stack2reg(rdi_off + num_rt_args), rdi->as_VMReg()); | |
| 304 | 320 #ifdef _LP64 |
| 321 map->set_callee_saved(VMRegImpl::stack2reg(r8_off + num_rt_args), r8->as_VMReg()); | |
| 322 map->set_callee_saved(VMRegImpl::stack2reg(r9_off + num_rt_args), r9->as_VMReg()); | |
| 323 map->set_callee_saved(VMRegImpl::stack2reg(r10_off + num_rt_args), r10->as_VMReg()); | |
| 324 map->set_callee_saved(VMRegImpl::stack2reg(r11_off + num_rt_args), r11->as_VMReg()); | |
| 325 map->set_callee_saved(VMRegImpl::stack2reg(r12_off + num_rt_args), r12->as_VMReg()); | |
| 326 map->set_callee_saved(VMRegImpl::stack2reg(r13_off + num_rt_args), r13->as_VMReg()); | |
| 327 map->set_callee_saved(VMRegImpl::stack2reg(r14_off + num_rt_args), r14->as_VMReg()); | |
| 328 map->set_callee_saved(VMRegImpl::stack2reg(r15_off + num_rt_args), r15->as_VMReg()); | |
| 329 | |
| 330 // This is stupid but needed. | |
| 331 map->set_callee_saved(VMRegImpl::stack2reg(raxH_off + num_rt_args), rax->as_VMReg()->next()); | |
| 332 map->set_callee_saved(VMRegImpl::stack2reg(rcxH_off + num_rt_args), rcx->as_VMReg()->next()); | |
| 333 map->set_callee_saved(VMRegImpl::stack2reg(rdxH_off + num_rt_args), rdx->as_VMReg()->next()); | |
| 334 map->set_callee_saved(VMRegImpl::stack2reg(rbxH_off + num_rt_args), rbx->as_VMReg()->next()); | |
| 335 map->set_callee_saved(VMRegImpl::stack2reg(rsiH_off + num_rt_args), rsi->as_VMReg()->next()); | |
| 336 map->set_callee_saved(VMRegImpl::stack2reg(rdiH_off + num_rt_args), rdi->as_VMReg()->next()); | |
| 337 | |
| 338 map->set_callee_saved(VMRegImpl::stack2reg(r8H_off + num_rt_args), r8->as_VMReg()->next()); | |
| 339 map->set_callee_saved(VMRegImpl::stack2reg(r9H_off + num_rt_args), r9->as_VMReg()->next()); | |
| 340 map->set_callee_saved(VMRegImpl::stack2reg(r10H_off + num_rt_args), r10->as_VMReg()->next()); | |
| 341 map->set_callee_saved(VMRegImpl::stack2reg(r11H_off + num_rt_args), r11->as_VMReg()->next()); | |
| 342 map->set_callee_saved(VMRegImpl::stack2reg(r12H_off + num_rt_args), r12->as_VMReg()->next()); | |
| 343 map->set_callee_saved(VMRegImpl::stack2reg(r13H_off + num_rt_args), r13->as_VMReg()->next()); | |
| 344 map->set_callee_saved(VMRegImpl::stack2reg(r14H_off + num_rt_args), r14->as_VMReg()->next()); | |
| 345 map->set_callee_saved(VMRegImpl::stack2reg(r15H_off + num_rt_args), r15->as_VMReg()->next()); | |
| 346 #endif // _LP64 | |
| 0 | 347 |
| 348 if (save_fpu_registers) { | |
| 349 if (UseSSE < 2) { | |
| 350 int fpu_off = float_regs_as_doubles_off; | |
| 351 for (int n = 0; n < FrameMap::nof_fpu_regs; n++) { | |
| 352 VMReg fpu_name_0 = FrameMap::fpu_regname(n); | |
| 353 map->set_callee_saved(VMRegImpl::stack2reg(fpu_off + num_rt_args), fpu_name_0); | |
| 354 // %%% This is really a waste but we'll keep things as they were for now | |
| 355 if (true) { | |
| 356 map->set_callee_saved(VMRegImpl::stack2reg(fpu_off + 1 + num_rt_args), fpu_name_0->next()); | |
| 357 } | |
| 358 fpu_off += 2; | |
| 359 } | |
| 360 assert(fpu_off == fpu_state_off, "incorrect number of fpu stack slots"); | |
| 361 } | |
| 362 | |
| 363 if (UseSSE >= 2) { | |
| 364 int xmm_off = xmm_regs_as_doubles_off; | |
| 365 for (int n = 0; n < FrameMap::nof_xmm_regs; n++) { | |
| 366 VMReg xmm_name_0 = as_XMMRegister(n)->as_VMReg(); | |
| 367 map->set_callee_saved(VMRegImpl::stack2reg(xmm_off + num_rt_args), xmm_name_0); | |
| 368 // %%% This is really a waste but we'll keep things as they were for now | |
| 369 if (true) { | |
| 370 map->set_callee_saved(VMRegImpl::stack2reg(xmm_off + 1 + num_rt_args), xmm_name_0->next()); | |
| 371 } | |
| 372 xmm_off += 2; | |
| 373 } | |
| 374 assert(xmm_off == float_regs_as_doubles_off, "incorrect number of xmm registers"); | |
| 375 | |
| 376 } else if (UseSSE == 1) { | |
| 377 int xmm_off = xmm_regs_as_doubles_off; | |
| 378 for (int n = 0; n < FrameMap::nof_xmm_regs; n++) { | |
| 379 VMReg xmm_name_0 = as_XMMRegister(n)->as_VMReg(); | |
| 380 map->set_callee_saved(VMRegImpl::stack2reg(xmm_off + num_rt_args), xmm_name_0); | |
| 381 xmm_off += 2; | |
| 382 } | |
| 383 assert(xmm_off == float_regs_as_doubles_off, "incorrect number of xmm registers"); | |
| 384 } | |
| 385 } | |
| 386 | |
| 387 return map; | |
| 388 } | |
| 389 | |
| 390 static OopMap* save_live_registers(StubAssembler* sasm, int num_rt_args, | |
| 391 bool save_fpu_registers = true) { | |
| 392 __ block_comment("save_live_registers"); | |
| 393 | |
| 304 | 394 __ pusha(); // integer registers |
| 0 | 395 |
| 396 // assert(float_regs_as_doubles_off % 2 == 0, "misaligned offset"); | |
| 397 // assert(xmm_regs_as_doubles_off % 2 == 0, "misaligned offset"); | |
| 398 | |
| 304 | 399 __ subptr(rsp, extra_space_offset * VMRegImpl::stack_slot_size); |
| 0 | 400 |
| 401 #ifdef ASSERT | |
| 304 | 402 __ movptr(Address(rsp, marker * VMRegImpl::stack_slot_size), (int32_t)0xfeedbeef); |
| 0 | 403 #endif |
| 404 | |
| 405 if (save_fpu_registers) { | |
| 406 if (UseSSE < 2) { | |
| 407 // save FPU stack | |
| 304 | 408 __ fnsave(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size)); |
| 0 | 409 __ fwait(); |
| 410 | |
| 411 #ifdef ASSERT | |
| 412 Label ok; | |
| 304 | 413 __ cmpw(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size), StubRoutines::fpu_cntrl_wrd_std()); |
| 0 | 414 __ jccb(Assembler::equal, ok); |
| 415 __ stop("corrupted control word detected"); | |
| 416 __ bind(ok); | |
| 417 #endif | |
| 418 | |
| 419 // Reset the control word to guard against exceptions being unmasked | |
| 420 // since fstp_d can cause FPU stack underflow exceptions. Write it | |
| 421 // into the on stack copy and then reload that to make sure that the | |
| 422 // current and future values are correct. | |
| 304 | 423 __ movw(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size), StubRoutines::fpu_cntrl_wrd_std()); |
| 424 __ frstor(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size)); | |
| 0 | 425 |
| 426 // Save the FPU registers in de-opt-able form | |
| 304 | 427 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0)); |
| 428 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8)); | |
| 429 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16)); | |
| 430 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24)); | |
| 431 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32)); | |
| 432 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40)); | |
| 433 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48)); | |
| 434 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56)); | |
| 0 | 435 } |
| 436 | |
| 437 if (UseSSE >= 2) { | |
| 438 // save XMM registers | |
| 439 // XMM registers can contain float or double values, but this is not known here, | |
| 440 // so always save them as doubles. | |
| 441 // note that float values are _not_ converted automatically, so for float values | |
| 442 // the second word contains only garbage data. | |
| 304 | 443 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0), xmm0); |
| 444 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8), xmm1); | |
| 445 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16), xmm2); | |
| 446 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24), xmm3); | |
| 447 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32), xmm4); | |
| 448 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40), xmm5); | |
| 449 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48), xmm6); | |
| 450 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56), xmm7); | |
| 451 #ifdef _LP64 | |
| 452 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 64), xmm8); | |
| 453 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 72), xmm9); | |
| 454 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 80), xmm10); | |
| 455 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 88), xmm11); | |
| 456 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 96), xmm12); | |
| 457 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 104), xmm13); | |
| 458 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 112), xmm14); | |
| 459 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 120), xmm15); | |
| 460 #endif // _LP64 | |
| 0 | 461 } else if (UseSSE == 1) { |
| 462 // save XMM registers as float because double not supported without SSE2 | |
| 304 | 463 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0), xmm0); |
| 464 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8), xmm1); | |
| 465 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16), xmm2); | |
| 466 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24), xmm3); | |
| 467 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32), xmm4); | |
| 468 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40), xmm5); | |
| 469 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48), xmm6); | |
| 470 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56), xmm7); | |
| 0 | 471 } |
| 472 } | |
| 473 | |
| 474 // FPU stack must be empty now | |
| 475 __ verify_FPU(0, "save_live_registers"); | |
| 476 | |
| 477 return generate_oop_map(sasm, num_rt_args, save_fpu_registers); | |
| 478 } | |
| 479 | |
| 480 | |
| 481 static void restore_fpu(StubAssembler* sasm, bool restore_fpu_registers = true) { | |
| 482 if (restore_fpu_registers) { | |
| 483 if (UseSSE >= 2) { | |
| 484 // restore XMM registers | |
| 304 | 485 __ movdbl(xmm0, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0)); |
| 486 __ movdbl(xmm1, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8)); | |
| 487 __ movdbl(xmm2, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16)); | |
| 488 __ movdbl(xmm3, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24)); | |
| 489 __ movdbl(xmm4, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32)); | |
| 490 __ movdbl(xmm5, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40)); | |
| 491 __ movdbl(xmm6, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48)); | |
| 492 __ movdbl(xmm7, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56)); | |
| 493 #ifdef _LP64 | |
| 494 __ movdbl(xmm8, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 64)); | |
| 495 __ movdbl(xmm9, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 72)); | |
| 496 __ movdbl(xmm10, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 80)); | |
| 497 __ movdbl(xmm11, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 88)); | |
| 498 __ movdbl(xmm12, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 96)); | |
| 499 __ movdbl(xmm13, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 104)); | |
| 500 __ movdbl(xmm14, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 112)); | |
| 501 __ movdbl(xmm15, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 120)); | |
| 502 #endif // _LP64 | |
| 0 | 503 } else if (UseSSE == 1) { |
| 504 // restore XMM registers | |
| 304 | 505 __ movflt(xmm0, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0)); |
| 506 __ movflt(xmm1, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8)); | |
| 507 __ movflt(xmm2, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16)); | |
| 508 __ movflt(xmm3, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24)); | |
| 509 __ movflt(xmm4, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32)); | |
| 510 __ movflt(xmm5, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40)); | |
| 511 __ movflt(xmm6, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48)); | |
| 512 __ movflt(xmm7, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56)); | |
| 0 | 513 } |
| 514 | |
| 515 if (UseSSE < 2) { | |
| 304 | 516 __ frstor(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size)); |
| 0 | 517 } else { |
| 518 // check that FPU stack is really empty | |
| 519 __ verify_FPU(0, "restore_live_registers"); | |
| 520 } | |
| 521 | |
| 522 } else { | |
| 523 // check that FPU stack is really empty | |
| 524 __ verify_FPU(0, "restore_live_registers"); | |
| 525 } | |
| 526 | |
| 527 #ifdef ASSERT | |
| 528 { | |
| 529 Label ok; | |
| 304 | 530 __ cmpptr(Address(rsp, marker * VMRegImpl::stack_slot_size), (int32_t)0xfeedbeef); |
| 0 | 531 __ jcc(Assembler::equal, ok); |
| 532 __ stop("bad offsets in frame"); | |
| 533 __ bind(ok); | |
| 534 } | |
| 304 | 535 #endif // ASSERT |
| 0 | 536 |
| 304 | 537 __ addptr(rsp, extra_space_offset * VMRegImpl::stack_slot_size); |
| 0 | 538 } |
| 539 | |
| 540 | |
|
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541 static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers/* = true*/) { |
| 0 | 542 __ block_comment("restore_live_registers"); |
| 543 | |
| 544 restore_fpu(sasm, restore_fpu_registers); | |
| 304 | 545 __ popa(); |
| 0 | 546 } |
| 547 | |
| 548 | |
| 549 static void restore_live_registers_except_rax(StubAssembler* sasm, bool restore_fpu_registers = true) { | |
| 550 __ block_comment("restore_live_registers_except_rax"); | |
| 551 | |
| 552 restore_fpu(sasm, restore_fpu_registers); | |
| 553 | |
| 304 | 554 #ifdef _LP64 |
| 555 __ movptr(r15, Address(rsp, 0)); | |
| 556 __ movptr(r14, Address(rsp, wordSize)); | |
| 557 __ movptr(r13, Address(rsp, 2 * wordSize)); | |
| 558 __ movptr(r12, Address(rsp, 3 * wordSize)); | |
| 559 __ movptr(r11, Address(rsp, 4 * wordSize)); | |
| 560 __ movptr(r10, Address(rsp, 5 * wordSize)); | |
| 561 __ movptr(r9, Address(rsp, 6 * wordSize)); | |
| 562 __ movptr(r8, Address(rsp, 7 * wordSize)); | |
| 563 __ movptr(rdi, Address(rsp, 8 * wordSize)); | |
| 564 __ movptr(rsi, Address(rsp, 9 * wordSize)); | |
| 565 __ movptr(rbp, Address(rsp, 10 * wordSize)); | |
| 566 // skip rsp | |
| 567 __ movptr(rbx, Address(rsp, 12 * wordSize)); | |
| 568 __ movptr(rdx, Address(rsp, 13 * wordSize)); | |
| 569 __ movptr(rcx, Address(rsp, 14 * wordSize)); | |
| 570 | |
| 571 __ addptr(rsp, 16 * wordSize); | |
| 572 #else | |
| 573 | |
| 574 __ pop(rdi); | |
| 575 __ pop(rsi); | |
| 576 __ pop(rbp); | |
| 577 __ pop(rbx); // skip this value | |
| 578 __ pop(rbx); | |
| 579 __ pop(rdx); | |
| 580 __ pop(rcx); | |
| 581 __ addptr(rsp, BytesPerWord); | |
| 582 #endif // _LP64 | |
| 0 | 583 } |
| 584 | |
| 585 | |
| 586 void Runtime1::initialize_pd() { | |
| 587 // nothing to do | |
| 588 } | |
| 589 | |
| 590 | |
| 591 // target: the entry point of the method that creates and posts the exception oop | |
| 592 // has_argument: true if the exception needs an argument (passed on stack because registers must be preserved) | |
| 593 | |
| 594 OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) { | |
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595 OopMapSet* oop_maps = new OopMapSet(); |
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596 #ifdef GRAAL |
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597 // graal passes the argument in r10 |
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598 OopMap* oop_map = save_live_registers(sasm, 1); |
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599 |
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600 // now all registers are saved and can be used freely |
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601 // verify that no old value is used accidentally |
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602 __ invalidate_registers(true, true, true, true, true, true); |
| 0 | 603 |
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604 // registers used by this stub |
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605 const Register temp_reg = rbx; |
| 0 | 606 |
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607 // load argument for exception that is passed as an argument into the stub |
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608 if (has_argument) { |
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609 __ movptr(c_rarg1, r10); |
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610 } |
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611 int call_offset = __ call_RT(noreg, noreg, target, has_argument ? 1 : 0); |
| 0 | 612 |
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613 oop_maps->add_gc_map(call_offset, oop_map); |
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614 #else |
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615 // preserve all registers |
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616 int num_rt_args = has_argument ? 2 : 1; |
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617 OopMap* oop_map = save_live_registers(sasm, num_rt_args); |
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618 |
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619 // now all registers are saved and can be used freely |
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620 // verify that no old value is used accidentally |
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621 __ invalidate_registers(true, true, true, true, true, true); |
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622 |
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623 // registers used by this stub |
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624 const Register temp_reg = rbx; |
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625 |
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626 // load argument for exception that is passed as an argument into the stub |
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627 if (has_argument) { |
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628 #ifdef _LP64 |
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629 __ movptr(c_rarg1, Address(rbp, 2*BytesPerWord)); |
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630 #else |
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631 __ movptr(temp_reg, Address(rbp, 2*BytesPerWord)); |
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632 __ push(temp_reg); |
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633 #endif // _LP64 |
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634 } |
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635 int call_offset = __ call_RT(noreg, noreg, target, num_rt_args - 1); |
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636 |
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637 oop_maps->add_gc_map(call_offset, oop_map); |
|
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638 #endif |
| 0 | 639 |
| 640 __ stop("should not reach here"); | |
| 641 | |
| 642 return oop_maps; | |
| 643 } | |
| 644 | |
| 645 | |
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646 OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler *sasm) { |
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647 __ block_comment("generate_handle_exception"); |
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648 |
| 0 | 649 // incoming parameters |
| 650 const Register exception_oop = rax; | |
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651 const Register exception_pc = rdx; |
| 0 | 652 // other registers used in this stub |
| 304 | 653 const Register thread = NOT_LP64(rdi) LP64_ONLY(r15_thread); |
| 0 | 654 |
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655 // Save registers, if required. |
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656 OopMapSet* oop_maps = new OopMapSet(); |
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657 OopMap* oop_map = NULL; |
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658 switch (id) { |
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659 case forward_exception_id: |
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660 // We're handling an exception in the context of a compiled frame. |
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661 // The registers have been saved in the standard places. Perform |
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662 // an exception lookup in the caller and dispatch to the handler |
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663 // if found. Otherwise unwind and dispatch to the callers |
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664 // exception handler. |
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665 oop_map = generate_oop_map(sasm, 1 /*thread*/); |
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666 |
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667 // load and clear pending exception oop into RAX |
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668 __ movptr(exception_oop, Address(thread, Thread::pending_exception_offset())); |
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669 __ movptr(Address(thread, Thread::pending_exception_offset()), NULL_WORD); |
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670 |
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671 // load issuing PC (the return address for this stub) into rdx |
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672 __ movptr(exception_pc, Address(rbp, 1*BytesPerWord)); |
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673 |
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674 // make sure that the vm_results are cleared (may be unnecessary) |
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675 __ movptr(Address(thread, JavaThread::vm_result_offset()), NULL_WORD); |
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676 __ movptr(Address(thread, JavaThread::vm_result_2_offset()), NULL_WORD); |
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677 break; |
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678 case handle_exception_nofpu_id: |
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679 case handle_exception_id: |
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680 // At this point all registers MAY be live. |
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681 oop_map = save_live_registers(sasm, 1 /*thread*/, id == handle_exception_nofpu_id); |
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682 break; |
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683 case handle_exception_from_callee_id: { |
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684 // At this point all registers except exception oop (RAX) and |
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685 // exception pc (RDX) are dead. |
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686 const int frame_size = 2 /*BP, return address*/ NOT_LP64(+ 1 /*thread*/) WIN64_ONLY(+ frame::arg_reg_save_area_bytes / BytesPerWord); |
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687 oop_map = new OopMap(frame_size * VMRegImpl::slots_per_word, 0); |
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688 sasm->set_frame_size(frame_size); |
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689 WIN64_ONLY(__ subq(rsp, frame::arg_reg_save_area_bytes)); |
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690 break; |
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691 } |
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692 default: ShouldNotReachHere(); |
|
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693 } |
| 0 | 694 |
| 695 #ifdef TIERED | |
| 696 // C2 can leave the fpu stack dirty | |
|
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697 if (UseSSE < 2) { |
| 0 | 698 __ empty_FPU_stack(); |
| 699 } | |
| 700 #endif // TIERED | |
| 701 | |
| 702 // verify that only rax, and rdx is valid at this time | |
| 703 __ invalidate_registers(false, true, true, false, true, true); | |
| 704 // verify that rax, contains a valid exception | |
| 705 __ verify_not_null_oop(exception_oop); | |
| 706 | |
| 707 // load address of JavaThread object for thread-local data | |
| 304 | 708 NOT_LP64(__ get_thread(thread);) |
| 0 | 709 |
| 710 #ifdef ASSERT | |
| 711 // check that fields in JavaThread for exception oop and issuing pc are | |
| 712 // empty before writing to them | |
| 713 Label oop_empty; | |
| 304 | 714 __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), (int32_t) NULL_WORD); |
| 0 | 715 __ jcc(Assembler::equal, oop_empty); |
| 716 __ stop("exception oop already set"); | |
| 717 __ bind(oop_empty); | |
| 718 | |
| 719 Label pc_empty; | |
| 304 | 720 __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), 0); |
| 0 | 721 __ jcc(Assembler::equal, pc_empty); |
| 722 __ stop("exception pc already set"); | |
| 723 __ bind(pc_empty); | |
| 724 #endif | |
| 725 | |
| 726 // save exception oop and issuing pc into JavaThread | |
| 727 // (exception handler will load it from here) | |
| 304 | 728 __ movptr(Address(thread, JavaThread::exception_oop_offset()), exception_oop); |
|
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729 __ movptr(Address(thread, JavaThread::exception_pc_offset()), exception_pc); |
| 0 | 730 |
| 731 // patch throwing pc into return address (has bci & oop map) | |
| 304 | 732 __ movptr(Address(rbp, 1*BytesPerWord), exception_pc); |
| 0 | 733 |
| 734 // compute the exception handler. | |
| 735 // the exception oop and the throwing pc are read from the fields in JavaThread | |
| 736 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc)); | |
| 737 oop_maps->add_gc_map(call_offset, oop_map); | |
| 738 | |
|
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739 // rax: handler address |
| 0 | 740 // will be the deopt blob if nmethod was deoptimized while we looked up |
| 741 // handler regardless of whether handler existed in the nmethod. | |
| 742 | |
| 743 // only rax, is valid at this time, all other registers have been destroyed by the runtime call | |
| 744 __ invalidate_registers(false, true, true, true, true, true); | |
| 745 | |
|
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746 // patch the return address, this stub will directly return to the exception handler |
| 304 | 747 __ movptr(Address(rbp, 1*BytesPerWord), rax); |
| 0 | 748 |
|
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749 switch (id) { |
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750 case forward_exception_id: |
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751 case handle_exception_nofpu_id: |
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752 case handle_exception_id: |
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753 // Restore the registers that were saved at the beginning. |
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754 restore_live_registers(sasm, id == handle_exception_nofpu_id); |
|
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755 break; |
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756 case handle_exception_from_callee_id: |
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757 // WIN64_ONLY: No need to add frame::arg_reg_save_area_bytes to SP |
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|
758 // since we do a leave anyway. |
| 0 | 759 |
|
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760 // Pop the return address since we are possibly changing SP (restoring from BP). |
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|
761 __ leave(); |
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762 __ pop(rcx); |
| 0 | 763 |
|
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|
764 // Restore SP from BP if the exception PC is a method handle call site. |
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765 NOT_LP64(__ get_thread(thread);) |
|
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|
766 __ cmpl(Address(thread, JavaThread::is_method_handle_return_offset()), 0); |
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|
767 __ cmovptr(Assembler::notEqual, rsp, rbp_mh_SP_save); |
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768 __ jmp(rcx); // jump to exception handler |
|
1b4e6a5d98e0
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|
769 break; |
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770 default: ShouldNotReachHere(); |
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771 } |
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772 |
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773 return oop_maps; |
| 0 | 774 } |
| 775 | |
|
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776 void Runtime1::graal_generate_handle_exception(StubAssembler *sasm, OopMapSet* oop_maps, OopMap* oop_map) { |
|
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777 NOT_LP64(fatal("64 bit only")); |
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778 // incoming parameters |
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779 const Register exception_oop = j_rarg0; |
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780 // other registers used in this stub |
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781 const Register exception_pc = j_rarg1; |
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782 const Register thread = r15_thread; |
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783 |
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784 __ block_comment("graal_generate_handle_exception"); |
|
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785 |
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786 // verify that rax, contains a valid exception |
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787 __ verify_not_null_oop(exception_oop); |
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788 |
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789 #ifdef ASSERT |
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790 // check that fields in JavaThread for exception oop and issuing pc are |
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791 // empty before writing to them |
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792 Label oop_empty; |
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793 __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), (int32_t) NULL_WORD); |
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794 __ jcc(Assembler::equal, oop_empty); |
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795 __ stop("exception oop already set"); |
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796 __ bind(oop_empty); |
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797 |
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798 Label pc_empty; |
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799 __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), 0); |
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800 __ jcc(Assembler::equal, pc_empty); |
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801 __ stop("exception pc already set"); |
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802 __ bind(pc_empty); |
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803 #endif |
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804 |
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805 // save exception oop and issuing pc into JavaThread |
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806 // (exception handler will load it from here) |
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807 __ movptr(Address(thread, JavaThread::exception_oop_offset()), exception_oop); |
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808 __ movptr(exception_pc, Address(rbp, 1*BytesPerWord)); |
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809 __ movptr(Address(thread, JavaThread::exception_pc_offset()), exception_pc); |
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810 |
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811 // compute the exception handler. |
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812 // the exception oop and the throwing pc are read from the fields in JavaThread |
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813 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc)); |
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814 oop_maps->add_gc_map(call_offset, oop_map); |
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815 |
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816 // rax,: handler address |
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817 // will be the deopt blob if nmethod was deoptimized while we looked up |
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818 // handler regardless of whether handler existed in the nmethod. |
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819 |
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820 // only rax, is valid at this time, all other registers have been destroyed by the runtime call |
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821 __ invalidate_registers(false, true, true, true, true, true); |
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822 |
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823 #ifdef ASSERT |
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824 // Do we have an exception handler in the nmethod? |
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825 Label done; |
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826 __ testptr(rax, rax); |
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827 __ jcc(Assembler::notZero, done); |
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828 __ stop("no handler found"); |
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829 __ bind(done); |
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830 #endif |
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831 |
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832 // exception handler found |
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833 // patch the return address -> the stub will directly return to the exception handler |
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834 __ movptr(Address(rbp, 1*BytesPerWord), rax); |
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835 |
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836 // restore registers |
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837 restore_live_registers(sasm, false); |
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838 |
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839 // return to exception handler |
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840 __ leave(); |
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841 __ ret(0); |
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842 } |
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843 |
| 0 | 844 |
| 845 void Runtime1::generate_unwind_exception(StubAssembler *sasm) { | |
| 846 // incoming parameters | |
| 847 const Register exception_oop = rax; | |
| 1295 | 848 // callee-saved copy of exception_oop during runtime call |
| 849 const Register exception_oop_callee_saved = NOT_LP64(rsi) LP64_ONLY(r14); | |
| 0 | 850 // other registers used in this stub |
| 851 const Register exception_pc = rdx; | |
| 852 const Register handler_addr = rbx; | |
| 304 | 853 const Register thread = NOT_LP64(rdi) LP64_ONLY(r15_thread); |
| 0 | 854 |
| 855 // verify that only rax, is valid at this time | |
| 856 __ invalidate_registers(false, true, true, true, true, true); | |
| 857 | |
| 858 #ifdef ASSERT | |
| 859 // check that fields in JavaThread for exception oop and issuing pc are empty | |
| 304 | 860 NOT_LP64(__ get_thread(thread);) |
| 0 | 861 Label oop_empty; |
| 304 | 862 __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), 0); |
| 0 | 863 __ jcc(Assembler::equal, oop_empty); |
| 864 __ stop("exception oop must be empty"); | |
| 865 __ bind(oop_empty); | |
| 866 | |
| 867 Label pc_empty; | |
| 304 | 868 __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), 0); |
| 0 | 869 __ jcc(Assembler::equal, pc_empty); |
| 870 __ stop("exception pc must be empty"); | |
| 871 __ bind(pc_empty); | |
| 872 #endif | |
| 873 | |
| 874 // clear the FPU stack in case any FPU results are left behind | |
| 875 __ empty_FPU_stack(); | |
| 876 | |
| 1295 | 877 // save exception_oop in callee-saved register to preserve it during runtime calls |
| 878 __ verify_not_null_oop(exception_oop); | |
| 879 __ movptr(exception_oop_callee_saved, exception_oop); | |
| 880 | |
| 881 NOT_LP64(__ get_thread(thread);) | |
| 882 // Get return address (is on top of stack after leave). | |
| 304 | 883 __ movptr(exception_pc, Address(rsp, 0)); |
| 0 | 884 |
| 1295 | 885 // search the exception handler address of the caller (using the return address) |
| 886 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), thread, exception_pc); | |
| 887 // rax: exception handler address of the caller | |
| 0 | 888 |
| 1295 | 889 // Only RAX and RSI are valid at this time, all other registers have been destroyed by the call. |
| 890 __ invalidate_registers(false, true, true, true, false, true); | |
| 0 | 891 |
| 892 // move result of call into correct register | |
| 304 | 893 __ movptr(handler_addr, rax); |
| 0 | 894 |
| 1295 | 895 // Restore exception oop to RAX (required convention of exception handler). |
| 896 __ movptr(exception_oop, exception_oop_callee_saved); | |
| 0 | 897 |
| 1295 | 898 // verify that there is really a valid exception in rax |
| 899 __ verify_not_null_oop(exception_oop); | |
| 0 | 900 |
| 901 // get throwing pc (= return address). | |
| 902 // rdx has been destroyed by the call, so it must be set again | |
| 903 // the pop is also necessary to simulate the effect of a ret(0) | |
| 304 | 904 __ pop(exception_pc); |
| 0 | 905 |
|
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906 // Restore SP from BP if the exception PC is a method handle call site. |
| 1295 | 907 NOT_LP64(__ get_thread(thread);) |
|
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908 __ cmpl(Address(thread, JavaThread::is_method_handle_return_offset()), 0); |
| 1564 | 909 __ cmovptr(Assembler::notEqual, rsp, rbp_mh_SP_save); |
| 0 | 910 |
| 911 // continue at exception handler (return address removed) | |
| 912 // note: do *not* remove arguments when unwinding the | |
| 913 // activation since the caller assumes having | |
| 914 // all arguments on the stack when entering the | |
| 915 // runtime to determine the exception handler | |
| 916 // (GC happens at call site with arguments!) | |
| 1295 | 917 // rax: exception oop |
| 0 | 918 // rdx: throwing pc |
| 1295 | 919 // rbx: exception handler |
| 0 | 920 __ jmp(handler_addr); |
| 921 } | |
| 922 | |
| 923 | |
| 924 OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) { | |
| 925 // use the maximum number of runtime-arguments here because it is difficult to | |
| 926 // distinguish each RT-Call. | |
| 927 // Note: This number affects also the RT-Call in generate_handle_exception because | |
| 928 // the oop-map is shared for all calls. | |
| 929 const int num_rt_args = 2; // thread + dummy | |
| 930 | |
| 931 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); | |
| 932 assert(deopt_blob != NULL, "deoptimization blob must have been created"); | |
| 933 | |
| 934 OopMap* oop_map = save_live_registers(sasm, num_rt_args); | |
| 935 | |
| 304 | 936 #ifdef _LP64 |
| 937 const Register thread = r15_thread; | |
| 938 // No need to worry about dummy | |
| 939 __ mov(c_rarg0, thread); | |
| 940 #else | |
| 941 __ push(rax); // push dummy | |
| 0 | 942 |
| 943 const Register thread = rdi; // is callee-saved register (Visual C++ calling conventions) | |
| 944 // push java thread (becomes first argument of C function) | |
| 945 __ get_thread(thread); | |
| 304 | 946 __ push(thread); |
| 947 #endif // _LP64 | |
| 0 | 948 __ set_last_Java_frame(thread, noreg, rbp, NULL); |
| 949 // do the call | |
| 950 __ call(RuntimeAddress(target)); | |
| 951 OopMapSet* oop_maps = new OopMapSet(); | |
| 952 oop_maps->add_gc_map(__ offset(), oop_map); | |
| 953 // verify callee-saved register | |
| 954 #ifdef ASSERT | |
| 955 guarantee(thread != rax, "change this code"); | |
| 304 | 956 __ push(rax); |
| 0 | 957 { Label L; |
| 958 __ get_thread(rax); | |
| 304 | 959 __ cmpptr(thread, rax); |
| 0 | 960 __ jcc(Assembler::equal, L); |
| 304 | 961 __ stop("StubAssembler::call_RT: rdi/r15 not callee saved?"); |
| 0 | 962 __ bind(L); |
| 963 } | |
| 304 | 964 __ pop(rax); |
| 0 | 965 #endif |
| 966 __ reset_last_Java_frame(thread, true, false); | |
| 304 | 967 #ifndef _LP64 |
| 968 __ pop(rcx); // discard thread arg | |
| 969 __ pop(rcx); // discard dummy | |
| 970 #endif // _LP64 | |
| 0 | 971 |
| 972 // check for pending exceptions | |
| 973 { Label L; | |
| 304 | 974 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 975 __ jcc(Assembler::equal, L); |
| 976 // exception pending => remove activation and forward to exception handler | |
| 977 | |
| 304 | 978 __ testptr(rax, rax); // have we deoptimized? |
| 0 | 979 __ jump_cc(Assembler::equal, |
| 980 RuntimeAddress(Runtime1::entry_for(Runtime1::forward_exception_id))); | |
| 981 | |
| 982 // the deopt blob expects exceptions in the special fields of | |
| 983 // JavaThread, so copy and clear pending exception. | |
| 984 | |
| 985 // load and clear pending exception | |
| 304 | 986 __ movptr(rax, Address(thread, Thread::pending_exception_offset())); |
|
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987 __ movptr(Address(thread, Thread::pending_exception_offset()), NULL_WORD); |
| 0 | 988 |
| 989 // check that there is really a valid exception | |
| 990 __ verify_not_null_oop(rax); | |
| 991 | |
| 992 // load throwing pc: this is the return address of the stub | |
| 304 | 993 __ movptr(rdx, Address(rsp, return_off * VMRegImpl::stack_slot_size)); |
| 0 | 994 |
| 995 #ifdef ASSERT | |
| 996 // check that fields in JavaThread for exception oop and issuing pc are empty | |
| 997 Label oop_empty; | |
| 304 | 998 __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), (int32_t)NULL_WORD); |
| 0 | 999 __ jcc(Assembler::equal, oop_empty); |
| 1000 __ stop("exception oop must be empty"); | |
| 1001 __ bind(oop_empty); | |
| 1002 | |
| 1003 Label pc_empty; | |
| 304 | 1004 __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), (int32_t)NULL_WORD); |
| 0 | 1005 __ jcc(Assembler::equal, pc_empty); |
| 1006 __ stop("exception pc must be empty"); | |
| 1007 __ bind(pc_empty); | |
| 1008 #endif | |
| 1009 | |
| 1010 // store exception oop and throwing pc to JavaThread | |
| 304 | 1011 __ movptr(Address(thread, JavaThread::exception_oop_offset()), rax); |
| 1012 __ movptr(Address(thread, JavaThread::exception_pc_offset()), rdx); | |
| 0 | 1013 |
| 1014 restore_live_registers(sasm); | |
| 1015 | |
| 1016 __ leave(); | |
| 304 | 1017 __ addptr(rsp, BytesPerWord); // remove return address from stack |
| 0 | 1018 |
| 1019 // Forward the exception directly to deopt blob. We can blow no | |
| 1020 // registers and must leave throwing pc on the stack. A patch may | |
| 1021 // have values live in registers so the entry point with the | |
| 1022 // exception in tls. | |
| 1023 __ jump(RuntimeAddress(deopt_blob->unpack_with_exception_in_tls())); | |
| 1024 | |
| 1025 __ bind(L); | |
| 1026 } | |
| 1027 | |
| 1028 | |
| 1029 // Runtime will return true if the nmethod has been deoptimized during | |
| 1030 // the patching process. In that case we must do a deopt reexecute instead. | |
| 1031 | |
| 1032 Label reexecuteEntry, cont; | |
| 1033 | |
| 304 | 1034 __ testptr(rax, rax); // have we deoptimized? |
| 0 | 1035 __ jcc(Assembler::equal, cont); // no |
| 1036 | |
| 1037 // Will reexecute. Proper return address is already on the stack we just restore | |
| 1038 // registers, pop all of our frame but the return address and jump to the deopt blob | |
| 1039 restore_live_registers(sasm); | |
| 1040 __ leave(); | |
| 1041 __ jump(RuntimeAddress(deopt_blob->unpack_with_reexecution())); | |
| 1042 | |
| 1043 __ bind(cont); | |
| 1044 restore_live_registers(sasm); | |
| 1045 __ leave(); | |
| 1046 __ ret(0); | |
| 1047 | |
| 1048 return oop_maps; | |
| 1049 } | |
| 1050 | |
|
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1051 JRT_ENTRY(void, graal_create_null_exception(JavaThread* thread)) |
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1052 thread->set_vm_result(Exceptions::new_exception(thread, vmSymbols::java_lang_NullPointerException(), NULL)()); |
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1053 JRT_END |
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1054 |
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1055 JRT_ENTRY(void, graal_create_out_of_bounds_exception(JavaThread* thread, jint index)) |
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1056 char message[jintAsStringSize]; |
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1057 sprintf(message, "%d", index); |
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1058 thread->set_vm_result(Exceptions::new_exception(thread, vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), message)()); |
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1059 JRT_END |
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1060 |
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1061 JRT_ENTRY(void, graal_generic_callback(JavaThread* thread, oop _callback, oop _argument)) |
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1062 HandleMark hm; |
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1063 Handle callback(_callback); |
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1064 Handle argument(_argument); |
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1065 |
|
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1066 KlassHandle klass = SystemDictionary::resolve_or_null(vmSymbols::com_oracle_max_cri_ci_CiGenericCallback(), SystemDictionary::java_system_loader(), NULL, thread); |
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1067 if (klass.is_null()) { |
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1068 tty->print_cr("couldn't resolve com_oracle_max_cri_ci_CiGenericCallback"); |
|
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1069 } |
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1070 |
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1071 JavaValue result(T_OBJECT); |
|
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1072 JavaCallArguments args; |
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1073 args.push_oop(Handle(callback)); |
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1074 args.push_oop(Handle(argument)); |
|
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1075 JavaCalls::call_virtual(&result, klass, vmSymbols::callbackInternal_name(), vmSymbols::callback_signature(), &args, thread); |
|
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1076 |
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1077 thread->set_vm_result((oop) result.get_jobject()); |
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1078 JRT_END |
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1079 |
|
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1080 |
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1081 |
| 0 | 1082 |
| 1083 OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) { | |
| 1084 | |
| 1085 // for better readability | |
| 1086 const bool must_gc_arguments = true; | |
| 1087 const bool dont_gc_arguments = false; | |
| 1088 | |
| 1089 // default value; overwritten for some optimized stubs that are called from methods that do not use the fpu | |
| 1090 bool save_fpu_registers = true; | |
| 1091 | |
| 1092 // stub code & info for the different stubs | |
| 1093 OopMapSet* oop_maps = NULL; | |
| 1094 switch (id) { | |
| 1095 case forward_exception_id: | |
| 1096 { | |
|
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1097 oop_maps = generate_handle_exception(id, sasm); |
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1098 __ leave(); |
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1099 __ ret(0); |
| 0 | 1100 } |
| 1101 break; | |
| 1102 | |
| 1103 case new_instance_id: | |
| 1104 case fast_new_instance_id: | |
| 1105 case fast_new_instance_init_check_id: | |
| 1106 { | |
| 1107 Register klass = rdx; // Incoming | |
| 1108 Register obj = rax; // Result | |
| 1109 | |
| 1110 if (id == new_instance_id) { | |
| 1111 __ set_info("new_instance", dont_gc_arguments); | |
| 1112 } else if (id == fast_new_instance_id) { | |
| 1113 __ set_info("fast new_instance", dont_gc_arguments); | |
| 1114 } else { | |
| 1115 assert(id == fast_new_instance_init_check_id, "bad StubID"); | |
| 1116 __ set_info("fast new_instance init check", dont_gc_arguments); | |
| 1117 } | |
| 1118 | |
| 1119 if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) && | |
| 1120 UseTLAB && FastTLABRefill) { | |
| 1121 Label slow_path; | |
| 1122 Register obj_size = rcx; | |
| 1123 Register t1 = rbx; | |
| 1124 Register t2 = rsi; | |
| 1125 assert_different_registers(klass, obj, obj_size, t1, t2); | |
| 1126 | |
| 304 | 1127 __ push(rdi); |
| 1128 __ push(rbx); | |
| 0 | 1129 |
| 1130 if (id == fast_new_instance_init_check_id) { | |
| 1131 // make sure the klass is initialized | |
| 1132 __ cmpl(Address(klass, instanceKlass::init_state_offset_in_bytes() + sizeof(oopDesc)), instanceKlass::fully_initialized); | |
| 1133 __ jcc(Assembler::notEqual, slow_path); | |
| 1134 } | |
| 1135 | |
| 1136 #ifdef ASSERT | |
| 1137 // assert object can be fast path allocated | |
| 1138 { | |
| 1139 Label ok, not_ok; | |
| 1140 __ movl(obj_size, Address(klass, Klass::layout_helper_offset_in_bytes() + sizeof(oopDesc))); | |
| 1141 __ cmpl(obj_size, 0); // make sure it's an instance (LH > 0) | |
| 1142 __ jcc(Assembler::lessEqual, not_ok); | |
| 1143 __ testl(obj_size, Klass::_lh_instance_slow_path_bit); | |
| 1144 __ jcc(Assembler::zero, ok); | |
| 1145 __ bind(not_ok); | |
| 1146 __ stop("assert(can be fast path allocated)"); | |
| 1147 __ should_not_reach_here(); | |
| 1148 __ bind(ok); | |
| 1149 } | |
| 1150 #endif // ASSERT | |
| 1151 | |
| 1152 // if we got here then the TLAB allocation failed, so try | |
| 1153 // refilling the TLAB or allocating directly from eden. | |
| 1154 Label retry_tlab, try_eden; | |
|
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1155 const Register thread = |
|
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1156 __ tlab_refill(retry_tlab, try_eden, slow_path); // does not destroy rdx (klass), returns rdi |
| 0 | 1157 |
| 1158 __ bind(retry_tlab); | |
| 1159 | |
| 304 | 1160 // get the instance size (size is postive so movl is fine for 64bit) |
| 0 | 1161 __ movl(obj_size, Address(klass, klassOopDesc::header_size() * HeapWordSize + Klass::layout_helper_offset_in_bytes())); |
|
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1162 |
| 0 | 1163 __ tlab_allocate(obj, obj_size, 0, t1, t2, slow_path); |
|
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1164 |
| 0 | 1165 __ initialize_object(obj, klass, obj_size, 0, t1, t2); |
| 1166 __ verify_oop(obj); | |
| 304 | 1167 __ pop(rbx); |
| 1168 __ pop(rdi); | |
| 0 | 1169 __ ret(0); |
| 1170 | |
| 1171 __ bind(try_eden); | |
| 304 | 1172 // get the instance size (size is postive so movl is fine for 64bit) |
| 0 | 1173 __ movl(obj_size, Address(klass, klassOopDesc::header_size() * HeapWordSize + Klass::layout_helper_offset_in_bytes())); |
|
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1174 |
| 0 | 1175 __ eden_allocate(obj, obj_size, 0, t1, slow_path); |
|
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1176 __ incr_allocated_bytes(thread, obj_size, 0); |
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|
1177 |
| 0 | 1178 __ initialize_object(obj, klass, obj_size, 0, t1, t2); |
| 1179 __ verify_oop(obj); | |
| 304 | 1180 __ pop(rbx); |
| 1181 __ pop(rdi); | |
| 0 | 1182 __ ret(0); |
| 1183 | |
| 1184 __ bind(slow_path); | |
| 304 | 1185 __ pop(rbx); |
| 1186 __ pop(rdi); | |
| 0 | 1187 } |
| 1188 | |
| 1189 __ enter(); | |
| 1190 OopMap* map = save_live_registers(sasm, 2); | |
| 1191 int call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_instance), klass); | |
| 1192 oop_maps = new OopMapSet(); | |
| 1193 oop_maps->add_gc_map(call_offset, map); | |
| 1194 restore_live_registers_except_rax(sasm); | |
| 1195 __ verify_oop(obj); | |
| 1196 __ leave(); | |
| 1197 __ ret(0); | |
| 1198 | |
| 1199 // rax,: new instance | |
| 1200 } | |
| 1201 | |
| 1202 break; | |
| 1203 | |
| 1204 case counter_overflow_id: | |
| 1205 { | |
| 1783 | 1206 Register bci = rax, method = rbx; |
| 0 | 1207 __ enter(); |
| 1783 | 1208 OopMap* map = save_live_registers(sasm, 3); |
| 0 | 1209 // Retrieve bci |
| 1210 __ movl(bci, Address(rbp, 2*BytesPerWord)); | |
| 1783 | 1211 // And a pointer to the methodOop |
| 1212 __ movptr(method, Address(rbp, 3*BytesPerWord)); | |
| 1213 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, counter_overflow), bci, method); | |
| 0 | 1214 oop_maps = new OopMapSet(); |
| 1215 oop_maps->add_gc_map(call_offset, map); | |
| 1216 restore_live_registers(sasm); | |
| 1217 __ leave(); | |
| 1218 __ ret(0); | |
| 1219 } | |
| 1220 break; | |
| 1221 | |
| 1222 case new_type_array_id: | |
| 1223 case new_object_array_id: | |
| 1224 { | |
| 1225 Register length = rbx; // Incoming | |
| 1226 Register klass = rdx; // Incoming | |
| 1227 Register obj = rax; // Result | |
| 1228 | |
| 1229 if (id == new_type_array_id) { | |
| 1230 __ set_info("new_type_array", dont_gc_arguments); | |
| 1231 } else { | |
| 1232 __ set_info("new_object_array", dont_gc_arguments); | |
| 1233 } | |
| 1234 | |
| 1235 #ifdef ASSERT | |
| 1236 // assert object type is really an array of the proper kind | |
| 1237 { | |
| 1238 Label ok; | |
| 1239 Register t0 = obj; | |
| 1240 __ movl(t0, Address(klass, Klass::layout_helper_offset_in_bytes() + sizeof(oopDesc))); | |
| 1241 __ sarl(t0, Klass::_lh_array_tag_shift); | |
| 1242 int tag = ((id == new_type_array_id) | |
| 1243 ? Klass::_lh_array_tag_type_value | |
| 1244 : Klass::_lh_array_tag_obj_value); | |
| 1245 __ cmpl(t0, tag); | |
| 1246 __ jcc(Assembler::equal, ok); | |
| 1247 __ stop("assert(is an array klass)"); | |
| 1248 __ should_not_reach_here(); | |
| 1249 __ bind(ok); | |
| 1250 } | |
| 1251 #endif // ASSERT | |
| 1252 | |
| 1253 if (UseTLAB && FastTLABRefill) { | |
| 1254 Register arr_size = rsi; | |
| 1255 Register t1 = rcx; // must be rcx for use as shift count | |
| 1256 Register t2 = rdi; | |
| 1257 Label slow_path; | |
| 1258 assert_different_registers(length, klass, obj, arr_size, t1, t2); | |
| 1259 | |
| 1260 // check that array length is small enough for fast path. | |
| 1261 __ cmpl(length, C1_MacroAssembler::max_array_allocation_length); | |
| 1262 __ jcc(Assembler::above, slow_path); | |
| 1263 | |
| 1264 // if we got here then the TLAB allocation failed, so try | |
| 1265 // refilling the TLAB or allocating directly from eden. | |
| 1266 Label retry_tlab, try_eden; | |
|
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1267 const Register thread = |
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1268 __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves rbx & rdx, returns rdi |
| 0 | 1269 |
| 1270 __ bind(retry_tlab); | |
| 1271 | |
| 1272 // get the allocation size: round_up(hdr + length << (layout_helper & 0x1F)) | |
|
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1273 // since size is positive movl does right thing on 64bit |
| 0 | 1274 __ movl(t1, Address(klass, klassOopDesc::header_size() * HeapWordSize + Klass::layout_helper_offset_in_bytes())); |
| 304 | 1275 // since size is postive movl does right thing on 64bit |
| 0 | 1276 __ movl(arr_size, length); |
| 1277 assert(t1 == rcx, "fixed register usage"); | |
| 304 | 1278 __ shlptr(arr_size /* by t1=rcx, mod 32 */); |
| 1279 __ shrptr(t1, Klass::_lh_header_size_shift); | |
| 1280 __ andptr(t1, Klass::_lh_header_size_mask); | |
| 1281 __ addptr(arr_size, t1); | |
| 1282 __ addptr(arr_size, MinObjAlignmentInBytesMask); // align up | |
| 1283 __ andptr(arr_size, ~MinObjAlignmentInBytesMask); | |
| 0 | 1284 |
| 1285 __ tlab_allocate(obj, arr_size, 0, t1, t2, slow_path); // preserves arr_size | |
| 1286 | |
| 1287 __ initialize_header(obj, klass, length, t1, t2); | |
| 1288 __ movb(t1, Address(klass, klassOopDesc::header_size() * HeapWordSize + Klass::layout_helper_offset_in_bytes() + (Klass::_lh_header_size_shift / BitsPerByte))); | |
| 1289 assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); | |
| 1290 assert(Klass::_lh_header_size_mask <= 0xFF, "bytewise"); | |
| 304 | 1291 __ andptr(t1, Klass::_lh_header_size_mask); |
| 1292 __ subptr(arr_size, t1); // body length | |
| 1293 __ addptr(t1, obj); // body start | |
| 0 | 1294 __ initialize_body(t1, arr_size, 0, t2); |
| 1295 __ verify_oop(obj); | |
| 1296 __ ret(0); | |
| 1297 | |
| 1298 __ bind(try_eden); | |
| 1299 // get the allocation size: round_up(hdr + length << (layout_helper & 0x1F)) | |
|
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1300 // since size is positive movl does right thing on 64bit |
| 0 | 1301 __ movl(t1, Address(klass, klassOopDesc::header_size() * HeapWordSize + Klass::layout_helper_offset_in_bytes())); |
| 304 | 1302 // since size is postive movl does right thing on 64bit |
| 0 | 1303 __ movl(arr_size, length); |
| 1304 assert(t1 == rcx, "fixed register usage"); | |
| 304 | 1305 __ shlptr(arr_size /* by t1=rcx, mod 32 */); |
| 1306 __ shrptr(t1, Klass::_lh_header_size_shift); | |
| 1307 __ andptr(t1, Klass::_lh_header_size_mask); | |
| 1308 __ addptr(arr_size, t1); | |
| 1309 __ addptr(arr_size, MinObjAlignmentInBytesMask); // align up | |
| 1310 __ andptr(arr_size, ~MinObjAlignmentInBytesMask); | |
| 0 | 1311 |
| 1312 __ eden_allocate(obj, arr_size, 0, t1, slow_path); // preserves arr_size | |
|
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1313 __ incr_allocated_bytes(thread, arr_size, 0); |
| 0 | 1314 |
| 1315 __ initialize_header(obj, klass, length, t1, t2); | |
| 1316 __ movb(t1, Address(klass, klassOopDesc::header_size() * HeapWordSize + Klass::layout_helper_offset_in_bytes() + (Klass::_lh_header_size_shift / BitsPerByte))); | |
| 1317 assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); | |
| 1318 assert(Klass::_lh_header_size_mask <= 0xFF, "bytewise"); | |
| 304 | 1319 __ andptr(t1, Klass::_lh_header_size_mask); |
| 1320 __ subptr(arr_size, t1); // body length | |
| 1321 __ addptr(t1, obj); // body start | |
| 0 | 1322 __ initialize_body(t1, arr_size, 0, t2); |
| 1323 __ verify_oop(obj); | |
| 1324 __ ret(0); | |
| 1325 | |
| 1326 __ bind(slow_path); | |
| 1327 } | |
| 1328 | |
| 1329 __ enter(); | |
| 1330 OopMap* map = save_live_registers(sasm, 3); | |
| 1331 int call_offset; | |
| 1332 if (id == new_type_array_id) { | |
| 1333 call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_type_array), klass, length); | |
| 1334 } else { | |
| 1335 call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_object_array), klass, length); | |
| 1336 } | |
| 1337 | |
| 1338 oop_maps = new OopMapSet(); | |
| 1339 oop_maps->add_gc_map(call_offset, map); | |
| 1340 restore_live_registers_except_rax(sasm); | |
| 1341 | |
| 1342 __ verify_oop(obj); | |
| 1343 __ leave(); | |
| 1344 __ ret(0); | |
| 1345 | |
| 1346 // rax,: new array | |
| 1347 } | |
| 1348 break; | |
| 1349 | |
| 1350 case new_multi_array_id: | |
| 1351 { StubFrame f(sasm, "new_multi_array", dont_gc_arguments); | |
| 1352 // rax,: klass | |
| 1353 // rbx,: rank | |
| 1354 // rcx: address of 1st dimension | |
| 1355 OopMap* map = save_live_registers(sasm, 4); | |
| 1356 int call_offset = __ call_RT(rax, noreg, CAST_FROM_FN_PTR(address, new_multi_array), rax, rbx, rcx); | |
| 1357 | |
| 1358 oop_maps = new OopMapSet(); | |
| 1359 oop_maps->add_gc_map(call_offset, map); | |
| 1360 restore_live_registers_except_rax(sasm); | |
| 1361 | |
| 1362 // rax,: new multi array | |
| 1363 __ verify_oop(rax); | |
| 1364 } | |
| 1365 break; | |
| 1366 | |
| 1367 case register_finalizer_id: | |
| 1368 { | |
| 1369 __ set_info("register_finalizer", dont_gc_arguments); | |
| 1370 | |
| 304 | 1371 // This is called via call_runtime so the arguments |
| 1372 // will be place in C abi locations | |
| 1373 | |
| 1374 #ifdef _LP64 | |
|
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1375 #ifdef GRAAL |
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1376 __ verify_oop(j_rarg0); |
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1377 __ mov(rax, j_rarg0); |
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1378 #else |
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1379 __ verify_oop(c_rarg0); |
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1380 __ mov(rax, c_rarg0); |
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1381 #endif |
| 304 | 1382 #else |
| 0 | 1383 // The object is passed on the stack and we haven't pushed a |
| 1384 // frame yet so it's one work away from top of stack. | |
| 304 | 1385 __ movptr(rax, Address(rsp, 1 * BytesPerWord)); |
| 0 | 1386 __ verify_oop(rax); |
| 304 | 1387 #endif // _LP64 |
| 0 | 1388 |
| 1389 // load the klass and check the has finalizer flag | |
| 1390 Label register_finalizer; | |
| 1391 Register t = rsi; | |
| 2002 | 1392 __ load_klass(t, rax); |
| 0 | 1393 __ movl(t, Address(t, Klass::access_flags_offset_in_bytes() + sizeof(oopDesc))); |
| 1394 __ testl(t, JVM_ACC_HAS_FINALIZER); | |
| 1395 __ jcc(Assembler::notZero, register_finalizer); | |
| 1396 __ ret(0); | |
| 1397 | |
| 1398 __ bind(register_finalizer); | |
| 1399 __ enter(); | |
| 1400 OopMap* oop_map = save_live_registers(sasm, 2 /*num_rt_args */); | |
| 1401 int call_offset = __ call_RT(noreg, noreg, | |
| 1402 CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), rax); | |
| 1403 oop_maps = new OopMapSet(); | |
| 1404 oop_maps->add_gc_map(call_offset, oop_map); | |
| 1405 | |
| 1406 // Now restore all the live registers | |
| 1407 restore_live_registers(sasm); | |
| 1408 | |
| 1409 __ leave(); | |
| 1410 __ ret(0); | |
| 1411 } | |
| 1412 break; | |
| 1413 | |
| 1414 case throw_range_check_failed_id: | |
| 1415 { StubFrame f(sasm, "range_check_failed", dont_gc_arguments); | |
| 1416 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true); | |
| 1417 } | |
| 1418 break; | |
| 1419 | |
| 1420 case throw_index_exception_id: | |
| 1421 { StubFrame f(sasm, "index_range_check_failed", dont_gc_arguments); | |
| 1422 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true); | |
| 1423 } | |
| 1424 break; | |
| 1425 | |
| 1426 case throw_div0_exception_id: | |
| 1427 { StubFrame f(sasm, "throw_div0_exception", dont_gc_arguments); | |
| 1428 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false); | |
| 1429 } | |
| 1430 break; | |
| 1431 | |
| 1432 case throw_null_pointer_exception_id: | |
| 1433 { StubFrame f(sasm, "throw_null_pointer_exception", dont_gc_arguments); | |
| 1434 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false); | |
| 1435 } | |
| 1436 break; | |
| 1437 | |
| 1438 case handle_exception_nofpu_id: | |
| 1439 case handle_exception_id: | |
| 1440 { StubFrame f(sasm, "handle_exception", dont_gc_arguments); | |
|
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1441 oop_maps = generate_handle_exception(id, sasm); |
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1442 } |
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1443 break; |
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1444 |
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1445 case handle_exception_from_callee_id: |
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1446 { StubFrame f(sasm, "handle_exception_from_callee", dont_gc_arguments); |
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1447 oop_maps = generate_handle_exception(id, sasm); |
| 0 | 1448 } |
| 1449 break; | |
| 1450 | |
| 1451 case unwind_exception_id: | |
|
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1452 { |
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1453 __ set_info("unwind_exception", dont_gc_arguments); |
| 0 | 1454 // note: no stubframe since we are about to leave the current |
| 1455 // activation and we are calling a leaf VM function only. | |
| 1456 generate_unwind_exception(sasm); | |
| 1457 } | |
| 1458 break; | |
| 1459 | |
| 1460 case throw_array_store_exception_id: | |
| 1461 { StubFrame f(sasm, "throw_array_store_exception", dont_gc_arguments); | |
| 1462 // tos + 0: link | |
| 1463 // + 1: return address | |
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1464 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true); |
| 0 | 1465 } |
| 1466 break; | |
| 1467 | |
| 1468 case throw_class_cast_exception_id: | |
| 1469 { StubFrame f(sasm, "throw_class_cast_exception", dont_gc_arguments); | |
| 1470 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true); | |
| 1471 } | |
| 1472 break; | |
| 1473 | |
| 1474 case throw_incompatible_class_change_error_id: | |
| 1475 { StubFrame f(sasm, "throw_incompatible_class_cast_exception", dont_gc_arguments); | |
| 1476 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false); | |
| 1477 } | |
| 1478 break; | |
| 1479 | |
| 1480 case slow_subtype_check_id: | |
| 1481 { | |
|
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1482 // Typical calling sequence: |
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1483 // __ push(klass_RInfo); // object klass or other subclass |
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1484 // __ push(sup_k_RInfo); // array element klass or other superclass |
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1485 // __ call(slow_subtype_check); |
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1486 // Note that the subclass is pushed first, and is therefore deepest. |
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1487 // Previous versions of this code reversed the names 'sub' and 'super'. |
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1488 // This was operationally harmless but made the code unreadable. |
| 0 | 1489 enum layout { |
| 304 | 1490 rax_off, SLOT2(raxH_off) |
| 1491 rcx_off, SLOT2(rcxH_off) | |
| 1492 rsi_off, SLOT2(rsiH_off) | |
| 1493 rdi_off, SLOT2(rdiH_off) | |
| 1494 // saved_rbp_off, SLOT2(saved_rbpH_off) | |
| 1495 return_off, SLOT2(returnH_off) | |
|
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1496 sup_k_off, SLOT2(sup_kH_off) |
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1497 klass_off, SLOT2(superH_off) |
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1498 framesize, |
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1499 result_off = klass_off // deepest argument is also the return value |
| 0 | 1500 }; |
| 1501 | |
| 1502 __ set_info("slow_subtype_check", dont_gc_arguments); | |
| 304 | 1503 __ push(rdi); |
| 1504 __ push(rsi); | |
| 1505 __ push(rcx); | |
| 1506 __ push(rax); | |
| 0 | 1507 |
| 304 | 1508 // This is called by pushing args and not with C abi |
|
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1509 __ movptr(rsi, Address(rsp, (klass_off) * VMRegImpl::stack_slot_size)); // subclass |
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1510 __ movptr(rax, Address(rsp, (sup_k_off) * VMRegImpl::stack_slot_size)); // superclass |
| 0 | 1511 |
|
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1512 Label success; |
| 0 | 1513 Label miss; |
|
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1514 #ifdef GRAAL |
|
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1515 // TODO this should really be within the XirSnippets |
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1516 __ check_klass_subtype_fast_path(rsi, rax, rcx, &success, &miss, NULL); |
|
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1517 #endif |
|
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1518 |
|
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1519 __ check_klass_subtype_slow_path(rsi, rax, rcx, rdi, NULL, &miss); |
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1520 |
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1521 // fallthrough on success: |
|
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1522 __ bind(success); |
|
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1523 __ movptr(Address(rsp, (result_off) * VMRegImpl::stack_slot_size), 1); // result |
| 304 | 1524 __ pop(rax); |
| 1525 __ pop(rcx); | |
| 1526 __ pop(rsi); | |
| 1527 __ pop(rdi); | |
| 0 | 1528 __ ret(0); |
| 1529 | |
| 1530 __ bind(miss); | |
|
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1531 __ movptr(Address(rsp, (result_off) * VMRegImpl::stack_slot_size), NULL_WORD); // result |
| 304 | 1532 __ pop(rax); |
| 1533 __ pop(rcx); | |
| 1534 __ pop(rsi); | |
| 1535 __ pop(rdi); | |
| 0 | 1536 __ ret(0); |
| 1537 } | |
| 1538 break; | |
| 1539 | |
| 1540 case monitorenter_nofpu_id: | |
| 1541 save_fpu_registers = false; | |
| 1542 // fall through | |
| 1543 case monitorenter_id: | |
| 1544 { | |
| 1545 StubFrame f(sasm, "monitorenter", dont_gc_arguments); | |
| 1546 OopMap* map = save_live_registers(sasm, 3, save_fpu_registers); | |
| 1547 | |
| 304 | 1548 // Called with store_parameter and not C abi |
| 1549 | |
| 0 | 1550 f.load_argument(1, rax); // rax,: object |
| 1551 f.load_argument(0, rbx); // rbx,: lock address | |
| 1552 | |
| 1553 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), rax, rbx); | |
| 1554 | |
| 1555 oop_maps = new OopMapSet(); | |
| 1556 oop_maps->add_gc_map(call_offset, map); | |
| 1557 restore_live_registers(sasm, save_fpu_registers); | |
| 1558 } | |
| 1559 break; | |
| 1560 | |
| 1561 case monitorexit_nofpu_id: | |
| 1562 save_fpu_registers = false; | |
| 1563 // fall through | |
| 1564 case monitorexit_id: | |
| 1565 { | |
| 1566 StubFrame f(sasm, "monitorexit", dont_gc_arguments); | |
| 1567 OopMap* map = save_live_registers(sasm, 2, save_fpu_registers); | |
| 1568 | |
| 304 | 1569 // Called with store_parameter and not C abi |
| 1570 | |
| 0 | 1571 f.load_argument(0, rax); // rax,: lock address |
| 1572 | |
| 1573 // note: really a leaf routine but must setup last java sp | |
| 1574 // => use call_RT for now (speed can be improved by | |
| 1575 // doing last java sp setup manually) | |
| 1576 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), rax); | |
| 1577 | |
| 1578 oop_maps = new OopMapSet(); | |
| 1579 oop_maps->add_gc_map(call_offset, map); | |
| 1580 restore_live_registers(sasm, save_fpu_registers); | |
|
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1581 } |
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1582 break; |
| 0 | 1583 |
|
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1584 case deoptimize_id: |
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1585 { |
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1586 StubFrame f(sasm, "deoptimize", dont_gc_arguments); |
|
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1587 const int num_rt_args = 1; // thread |
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1588 OopMap* oop_map = save_live_registers(sasm, num_rt_args); |
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1589 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize)); |
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1590 oop_maps = new OopMapSet(); |
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1591 oop_maps->add_gc_map(call_offset, oop_map); |
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1592 restore_live_registers(sasm); |
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1593 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
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1594 assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
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1595 __ leave(); |
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1596 __ jump(RuntimeAddress(deopt_blob->unpack_with_reexecution())); |
| 0 | 1597 } |
| 1598 break; | |
| 1599 | |
| 1600 case access_field_patching_id: | |
| 1601 { StubFrame f(sasm, "access_field_patching", dont_gc_arguments); | |
| 1602 // we should set up register map | |
| 1603 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching)); | |
| 1604 } | |
| 1605 break; | |
| 1606 | |
| 1607 case load_klass_patching_id: | |
| 1608 { StubFrame f(sasm, "load_klass_patching", dont_gc_arguments); | |
| 1609 // we should set up register map | |
| 1610 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching)); | |
| 1611 } | |
| 1612 break; | |
| 1613 | |
| 1614 case dtrace_object_alloc_id: | |
| 1615 { // rax,: object | |
| 1616 StubFrame f(sasm, "dtrace_object_alloc", dont_gc_arguments); | |
| 1617 // we can't gc here so skip the oopmap but make sure that all | |
| 1618 // the live registers get saved. | |
| 1619 save_live_registers(sasm, 1); | |
| 1620 | |
| 304 | 1621 __ NOT_LP64(push(rax)) LP64_ONLY(mov(c_rarg0, rax)); |
| 0 | 1622 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc))); |
| 304 | 1623 NOT_LP64(__ pop(rax)); |
| 0 | 1624 |
| 1625 restore_live_registers(sasm); | |
| 1626 } | |
| 1627 break; | |
| 1628 | |
| 1629 case fpu2long_stub_id: | |
| 1630 { | |
| 1631 // rax, and rdx are destroyed, but should be free since the result is returned there | |
| 1632 // preserve rsi,ecx | |
| 304 | 1633 __ push(rsi); |
| 1634 __ push(rcx); | |
| 1635 LP64_ONLY(__ push(rdx);) | |
| 0 | 1636 |
| 1637 // check for NaN | |
| 1638 Label return0, do_return, return_min_jlong, do_convert; | |
| 1639 | |
| 304 | 1640 Address value_high_word(rsp, wordSize + 4); |
| 1641 Address value_low_word(rsp, wordSize); | |
| 1642 Address result_high_word(rsp, 3*wordSize + 4); | |
| 1643 Address result_low_word(rsp, 3*wordSize); | |
| 0 | 1644 |
| 304 | 1645 __ subptr(rsp, 32); // more than enough on 32bit |
| 0 | 1646 __ fst_d(value_low_word); |
| 1647 __ movl(rax, value_high_word); | |
| 1648 __ andl(rax, 0x7ff00000); | |
| 1649 __ cmpl(rax, 0x7ff00000); | |
| 1650 __ jcc(Assembler::notEqual, do_convert); | |
| 1651 __ movl(rax, value_high_word); | |
| 1652 __ andl(rax, 0xfffff); | |
| 1653 __ orl(rax, value_low_word); | |
| 1654 __ jcc(Assembler::notZero, return0); | |
| 1655 | |
| 1656 __ bind(do_convert); | |
| 1657 __ fnstcw(Address(rsp, 0)); | |
| 304 | 1658 __ movzwl(rax, Address(rsp, 0)); |
| 0 | 1659 __ orl(rax, 0xc00); |
| 1660 __ movw(Address(rsp, 2), rax); | |
| 1661 __ fldcw(Address(rsp, 2)); | |
| 1662 __ fwait(); | |
| 1663 __ fistp_d(result_low_word); | |
| 1664 __ fldcw(Address(rsp, 0)); | |
| 1665 __ fwait(); | |
| 304 | 1666 // This gets the entire long in rax on 64bit |
| 1667 __ movptr(rax, result_low_word); | |
| 1668 // testing of high bits | |
| 0 | 1669 __ movl(rdx, result_high_word); |
| 304 | 1670 __ mov(rcx, rax); |
| 0 | 1671 // What the heck is the point of the next instruction??? |
| 1672 __ xorl(rcx, 0x0); | |
| 1673 __ movl(rsi, 0x80000000); | |
| 1674 __ xorl(rsi, rdx); | |
| 1675 __ orl(rcx, rsi); | |
| 1676 __ jcc(Assembler::notEqual, do_return); | |
| 1677 __ fldz(); | |
| 1678 __ fcomp_d(value_low_word); | |
| 1679 __ fnstsw_ax(); | |
| 304 | 1680 #ifdef _LP64 |
| 1681 __ testl(rax, 0x4100); // ZF & CF == 0 | |
| 1682 __ jcc(Assembler::equal, return_min_jlong); | |
| 1683 #else | |
| 0 | 1684 __ sahf(); |
| 1685 __ jcc(Assembler::above, return_min_jlong); | |
| 304 | 1686 #endif // _LP64 |
| 0 | 1687 // return max_jlong |
| 304 | 1688 #ifndef _LP64 |
| 0 | 1689 __ movl(rdx, 0x7fffffff); |
| 1690 __ movl(rax, 0xffffffff); | |
| 304 | 1691 #else |
| 1692 __ mov64(rax, CONST64(0x7fffffffffffffff)); | |
| 1693 #endif // _LP64 | |
| 0 | 1694 __ jmp(do_return); |
| 1695 | |
| 1696 __ bind(return_min_jlong); | |
| 304 | 1697 #ifndef _LP64 |
| 0 | 1698 __ movl(rdx, 0x80000000); |
| 1699 __ xorl(rax, rax); | |
| 304 | 1700 #else |
| 1701 __ mov64(rax, CONST64(0x8000000000000000)); | |
| 1702 #endif // _LP64 | |
| 0 | 1703 __ jmp(do_return); |
| 1704 | |
| 1705 __ bind(return0); | |
| 1706 __ fpop(); | |
| 304 | 1707 #ifndef _LP64 |
| 1708 __ xorptr(rdx,rdx); | |
| 1709 __ xorptr(rax,rax); | |
| 1710 #else | |
| 1711 __ xorptr(rax, rax); | |
| 1712 #endif // _LP64 | |
| 0 | 1713 |
| 1714 __ bind(do_return); | |
| 304 | 1715 __ addptr(rsp, 32); |
| 1716 LP64_ONLY(__ pop(rdx);) | |
| 1717 __ pop(rcx); | |
| 1718 __ pop(rsi); | |
| 0 | 1719 __ ret(0); |
| 1720 } | |
| 1721 break; | |
| 1722 | |
| 342 | 1723 #ifndef SERIALGC |
| 1724 case g1_pre_barrier_slow_id: | |
| 1725 { | |
| 1726 StubFrame f(sasm, "g1_pre_barrier", dont_gc_arguments); | |
| 1727 // arg0 : previous value of memory | |
| 1728 | |
| 1729 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 1730 if (bs->kind() != BarrierSet::G1SATBCTLogging) { | |
| 362 | 1731 __ movptr(rax, (int)id); |
| 342 | 1732 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), rax); |
| 1733 __ should_not_reach_here(); | |
| 1734 break; | |
| 1735 } | |
| 362 | 1736 __ push(rax); |
| 1737 __ push(rdx); | |
| 342 | 1738 |
| 1739 const Register pre_val = rax; | |
| 362 | 1740 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread); |
| 342 | 1741 const Register tmp = rdx; |
| 1742 | |
| 362 | 1743 NOT_LP64(__ get_thread(thread);) |
| 342 | 1744 |
| 1745 Address in_progress(thread, in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1746 PtrQueue::byte_offset_of_active())); | |
| 1747 | |
| 1748 Address queue_index(thread, in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1749 PtrQueue::byte_offset_of_index())); | |
| 1750 Address buffer(thread, in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1751 PtrQueue::byte_offset_of_buf())); | |
| 1752 | |
| 1753 | |
| 1754 Label done; | |
| 1755 Label runtime; | |
| 1756 | |
| 1757 // Can we store original value in the thread's buffer? | |
| 1758 | |
| 362 | 1759 #ifdef _LP64 |
| 1572 | 1760 __ movslq(tmp, queue_index); |
| 362 | 1761 __ cmpq(tmp, 0); |
| 1762 #else | |
| 342 | 1763 __ cmpl(queue_index, 0); |
| 362 | 1764 #endif |
| 342 | 1765 __ jcc(Assembler::equal, runtime); |
| 362 | 1766 #ifdef _LP64 |
| 1767 __ subq(tmp, wordSize); | |
| 1768 __ movl(queue_index, tmp); | |
| 1769 __ addq(tmp, buffer); | |
| 1770 #else | |
| 342 | 1771 __ subl(queue_index, wordSize); |
| 1772 __ movl(tmp, buffer); | |
| 1773 __ addl(tmp, queue_index); | |
| 362 | 1774 #endif |
| 1775 | |
| 342 | 1776 // prev_val (rax) |
| 1777 f.load_argument(0, pre_val); | |
| 362 | 1778 __ movptr(Address(tmp, 0), pre_val); |
| 342 | 1779 __ jmp(done); |
| 1780 | |
| 1781 __ bind(runtime); | |
| 1572 | 1782 __ push(rcx); |
| 1783 #ifdef _LP64 | |
| 1784 __ push(r8); | |
| 1785 __ push(r9); | |
| 1786 __ push(r10); | |
| 1787 __ push(r11); | |
| 1788 # ifndef _WIN64 | |
| 1789 __ push(rdi); | |
| 1790 __ push(rsi); | |
| 1791 # endif | |
| 1792 #endif | |
| 342 | 1793 // load the pre-value |
| 1794 f.load_argument(0, rcx); | |
| 1795 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_pre), rcx, thread); | |
| 1572 | 1796 #ifdef _LP64 |
| 1797 # ifndef _WIN64 | |
| 1798 __ pop(rsi); | |
| 1799 __ pop(rdi); | |
| 1800 # endif | |
| 1801 __ pop(r11); | |
| 1802 __ pop(r10); | |
| 1803 __ pop(r9); | |
| 1804 __ pop(r8); | |
| 1805 #endif | |
| 362 | 1806 __ pop(rcx); |
| 1572 | 1807 __ bind(done); |
| 342 | 1808 |
| 362 | 1809 __ pop(rdx); |
| 1810 __ pop(rax); | |
| 342 | 1811 } |
| 1812 break; | |
| 1813 | |
| 1814 case g1_post_barrier_slow_id: | |
| 1815 { | |
| 1816 StubFrame f(sasm, "g1_post_barrier", dont_gc_arguments); | |
| 1817 | |
| 1818 | |
| 1819 // arg0: store_address | |
| 1820 Address store_addr(rbp, 2*BytesPerWord); | |
| 1821 | |
| 1822 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 1823 CardTableModRefBS* ct = (CardTableModRefBS*)bs; | |
| 1824 Label done; | |
| 1825 Label runtime; | |
| 1826 | |
| 1827 // At this point we know new_value is non-NULL and the new_value crosses regsion. | |
| 1828 // Must check to see if card is already dirty | |
| 1829 | |
| 362 | 1830 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread); |
| 342 | 1831 |
| 1832 Address queue_index(thread, in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 1833 PtrQueue::byte_offset_of_index())); | |
| 1834 Address buffer(thread, in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 1835 PtrQueue::byte_offset_of_buf())); | |
| 1836 | |
| 362 | 1837 __ push(rax); |
| 1572 | 1838 __ push(rcx); |
| 342 | 1839 |
| 362 | 1840 NOT_LP64(__ get_thread(thread);) |
| 1841 ExternalAddress cardtable((address)ct->byte_map_base); | |
| 342 | 1842 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); |
| 1843 | |
| 1572 | 1844 const Register card_addr = rcx; |
| 362 | 1845 #ifdef _LP64 |
| 1846 const Register tmp = rscratch1; | |
| 1847 f.load_argument(0, card_addr); | |
| 1848 __ shrq(card_addr, CardTableModRefBS::card_shift); | |
| 1849 __ lea(tmp, cardtable); | |
| 1850 // get the address of the card | |
| 1851 __ addq(card_addr, tmp); | |
| 1852 #else | |
| 1572 | 1853 const Register card_index = rcx; |
| 362 | 1854 f.load_argument(0, card_index); |
| 1855 __ shrl(card_index, CardTableModRefBS::card_shift); | |
| 1856 | |
| 342 | 1857 Address index(noreg, card_index, Address::times_1); |
| 1858 __ leal(card_addr, __ as_Address(ArrayAddress(cardtable, index))); | |
| 362 | 1859 #endif |
| 1860 | |
| 342 | 1861 __ cmpb(Address(card_addr, 0), 0); |
| 1862 __ jcc(Assembler::equal, done); | |
| 1863 | |
| 1864 // storing region crossing non-NULL, card is clean. | |
| 1865 // dirty card and log. | |
| 1866 | |
| 1867 __ movb(Address(card_addr, 0), 0); | |
| 1868 | |
| 1869 __ cmpl(queue_index, 0); | |
| 1870 __ jcc(Assembler::equal, runtime); | |
| 1871 __ subl(queue_index, wordSize); | |
| 1872 | |
| 1873 const Register buffer_addr = rbx; | |
| 362 | 1874 __ push(rbx); |
| 1875 | |
| 1876 __ movptr(buffer_addr, buffer); | |
| 342 | 1877 |
| 362 | 1878 #ifdef _LP64 |
| 1879 __ movslq(rscratch1, queue_index); | |
| 1880 __ addptr(buffer_addr, rscratch1); | |
| 1881 #else | |
| 1882 __ addptr(buffer_addr, queue_index); | |
| 1883 #endif | |
| 1884 __ movptr(Address(buffer_addr, 0), card_addr); | |
| 1885 | |
| 1886 __ pop(rbx); | |
| 342 | 1887 __ jmp(done); |
| 1888 | |
| 1889 __ bind(runtime); | |
| 1572 | 1890 __ push(rdx); |
| 1891 #ifdef _LP64 | |
| 1892 __ push(r8); | |
| 1893 __ push(r9); | |
| 1894 __ push(r10); | |
| 1895 __ push(r11); | |
| 1896 # ifndef _WIN64 | |
| 1897 __ push(rdi); | |
| 1898 __ push(rsi); | |
| 1899 # endif | |
| 1900 #endif | |
| 342 | 1901 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_post), card_addr, thread); |
| 1572 | 1902 #ifdef _LP64 |
| 1903 # ifndef _WIN64 | |
| 1904 __ pop(rsi); | |
| 1905 __ pop(rdi); | |
| 1906 # endif | |
| 1907 __ pop(r11); | |
| 1908 __ pop(r10); | |
| 1909 __ pop(r9); | |
| 1910 __ pop(r8); | |
| 1911 #endif | |
| 1912 __ pop(rdx); | |
| 1913 __ bind(done); | |
| 342 | 1914 |
| 1572 | 1915 __ pop(rcx); |
| 362 | 1916 __ pop(rax); |
| 342 | 1917 |
| 1918 } | |
| 1919 break; | |
| 1920 #endif // !SERIALGC | |
| 1921 | |
|
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1922 case graal_unwind_exception_call_id: { |
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1923 // remove the frame from the stack |
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1924 __ movptr(rsp, rbp); |
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1925 __ pop(rbp); |
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1926 // exception_oop is passed using ordinary java calling conventions |
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1927 __ movptr(rax, j_rarg0); |
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1928 |
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1929 Label nonNullExceptionOop; |
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1930 __ testptr(rax, rax); |
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1931 __ jcc(Assembler::notZero, nonNullExceptionOop); |
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1932 { |
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1933 __ enter(); |
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1934 oop_maps = new OopMapSet(); |
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1935 OopMap* oop_map = save_live_registers(sasm, 0); |
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1936 int call_offset = __ call_RT(rax, noreg, (address)graal_create_null_exception, 0); |
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1937 oop_maps->add_gc_map(call_offset, oop_map); |
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1938 __ leave(); |
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1939 } |
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1940 __ bind(nonNullExceptionOop); |
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1941 |
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1942 __ set_info("unwind_exception", dont_gc_arguments); |
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1943 // note: no stubframe since we are about to leave the current |
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1944 // activation and we are calling a leaf VM function only. |
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1945 generate_unwind_exception(sasm); |
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1946 __ should_not_reach_here(); |
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1947 break; |
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1948 } |
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* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
1949 |
|
3558
bc95d122df79
added runtime call to supply info upon deoptimization
Lukas Stadler <lukas.stadler@jku.at>
parents:
3538
diff
changeset
|
1950 case graal_set_deopt_info_id: { |
|
bc95d122df79
added runtime call to supply info upon deoptimization
Lukas Stadler <lukas.stadler@jku.at>
parents:
3538
diff
changeset
|
1951 __ movptr(Address(r15_thread, JavaThread::graal_deopt_info_offset()), rscratch1); |
|
bc95d122df79
added runtime call to supply info upon deoptimization
Lukas Stadler <lukas.stadler@jku.at>
parents:
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diff
changeset
|
1952 __ ret(0); |
|
bc95d122df79
added runtime call to supply info upon deoptimization
Lukas Stadler <lukas.stadler@jku.at>
parents:
3538
diff
changeset
|
1953 break; |
|
bc95d122df79
added runtime call to supply info upon deoptimization
Lukas Stadler <lukas.stadler@jku.at>
parents:
3538
diff
changeset
|
1954 } |
|
bc95d122df79
added runtime call to supply info upon deoptimization
Lukas Stadler <lukas.stadler@jku.at>
parents:
3538
diff
changeset
|
1955 |
|
3538
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1956 case graal_create_null_pointer_exception_id: { |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
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parents:
3509
diff
changeset
|
1957 __ enter(); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1958 oop_maps = new OopMapSet(); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1959 OopMap* oop_map = save_live_registers(sasm, 0); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1960 int call_offset = __ call_RT(rax, noreg, (address)graal_create_null_exception, 0); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1961 oop_maps->add_gc_map(call_offset, oop_map); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1962 __ leave(); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1963 __ ret(0); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1964 break; |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1965 } |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1966 |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1967 case graal_create_out_of_bounds_exception_id: { |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1968 __ enter(); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1969 oop_maps = new OopMapSet(); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1970 OopMap* oop_map = save_live_registers(sasm, 0); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1971 int call_offset = __ call_RT(rax, noreg, (address)graal_create_out_of_bounds_exception, c_rarg0); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1972 oop_maps->add_gc_map(call_offset, oop_map); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1973 __ leave(); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1974 __ ret(0); |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1975 break; |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1976 } |
|
e4616e3d207b
support for new CiRuntimeCalls CreateNullPointerException and CreateOutOfBoundsException
Lukas Stadler <lukas.stadler@jku.at>
parents:
3509
diff
changeset
|
1977 |
|
3682
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1978 case graal_generic_callback_id: { |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1979 __ enter(); |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1980 oop_maps = new OopMapSet(); |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1981 OopMap* oop_map = save_live_registers(sasm, 0); |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1982 int call_offset = __ call_RT(rax, noreg, (address)graal_generic_callback, j_rarg0, j_rarg1); |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1983 oop_maps->add_gc_map(call_offset, oop_map); |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1984 __ leave(); |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1985 __ ret(0); |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1986 break; |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1987 } |
|
6c04a4f268e5
implement generic callback mechanism (CiGenericCallback)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3558
diff
changeset
|
1988 |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
1989 case graal_handle_exception_id: { |
|
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
1990 StubFrame f(sasm, "graal_handle_exception", dont_gc_arguments); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
1991 oop_maps = new OopMapSet(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
1992 OopMap* oop_map = save_live_registers(sasm, 1, false); |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
1993 graal_generate_handle_exception(sasm, oop_maps, oop_map); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
1994 break; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
1995 } |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
1996 |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
1997 case graal_slow_subtype_check_id: { |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
1998 Label success; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
1999 Label miss; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2000 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2001 // TODO this should really be within the XirSnippets |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2002 __ check_klass_subtype_fast_path(j_rarg0, j_rarg1, j_rarg2, &success, &miss, NULL); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2003 __ check_klass_subtype_slow_path(j_rarg0, j_rarg1, j_rarg2, j_rarg3, NULL, &miss); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2004 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2005 // fallthrough on success: |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2006 __ bind(success); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2007 __ movptr(rax, 1); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2008 __ ret(0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2009 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2010 __ bind(miss); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2011 __ movptr(rax, NULL_WORD); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2012 __ ret(0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2013 break; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2014 } |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2015 |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2016 case graal_verify_pointer_id: { |
|
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2017 __ verify_oop(r13, "graal verify pointer"); |
|
1449
8cfe3537a0d3
Pointer verification stub. Two loose oop fixes in C1X C++ part. Logging which methods have been compiled.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1434
diff
changeset
|
2018 __ ret(0); |
|
8cfe3537a0d3
Pointer verification stub. Two loose oop fixes in C1X C++ part. Logging which methods have been compiled.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1434
diff
changeset
|
2019 break; |
|
8cfe3537a0d3
Pointer verification stub. Two loose oop fixes in C1X C++ part. Logging which methods have been compiled.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1434
diff
changeset
|
2020 } |
|
8cfe3537a0d3
Pointer verification stub. Two loose oop fixes in C1X C++ part. Logging which methods have been compiled.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1434
diff
changeset
|
2021 |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2022 case graal_arithmetic_frem_id: { |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2023 __ subptr(rsp, 8); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2024 __ movflt(Address(rsp, 0), xmm1); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2025 __ fld_s(Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2026 __ movflt(Address(rsp, 0), xmm0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2027 __ fld_s(Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2028 Label L; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2029 __ bind(L); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2030 __ fprem(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2031 __ fwait(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2032 __ fnstsw_ax(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2033 __ testl(rax, 0x400); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2034 __ jcc(Assembler::notZero, L); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2035 __ fxch(1); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2036 __ fpop(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2037 __ fstp_s(Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2038 __ movflt(xmm0, Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2039 __ addptr(rsp, 8); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2040 __ ret(0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2041 break; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2042 } |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2043 case graal_arithmetic_drem_id: { |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2044 __ subptr(rsp, 8); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2045 __ movdbl(Address(rsp, 0), xmm1); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2046 __ fld_d(Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2047 __ movdbl(Address(rsp, 0), xmm0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2048 __ fld_d(Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2049 Label L; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2050 __ bind(L); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2051 __ fprem(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2052 __ fwait(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2053 __ fnstsw_ax(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2054 __ testl(rax, 0x400); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2055 __ jcc(Assembler::notZero, L); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2056 __ fxch(1); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2057 __ fpop(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2058 __ fstp_d(Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2059 __ movdbl(xmm0, Address(rsp, 0)); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2060 __ addptr(rsp, 8); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2061 __ ret(0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2062 break; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2063 } |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2064 case graal_monitorenter_id: { |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2065 Label slow_case; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2066 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2067 Register obj = j_rarg0; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2068 Register lock = j_rarg1; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2069 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2070 Register scratch1 = rax; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2071 Register scratch2 = rbx; |
|
1942
00bc9eaf0e24
Support for -XX:+UseFastLocking flag. Fixed monitor enter XIR template for correct debug info at the runtime call.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1930
diff
changeset
|
2072 assert_different_registers(obj, lock, scratch1, scratch2); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2073 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2074 // copied from LIR_Assembler::emit_lock |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2075 if (UseFastLocking) { |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2076 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); |
|
3714
b648304ba4ff
Change Graal monitor enter and exit from BasicObjectLock to BasicLock
Christian Wimmer <christian.wimmer@oracle.com>
parents:
3705
diff
changeset
|
2077 __ lock_object(scratch1, obj, lock, scratch2, slow_case, false); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2078 __ ret(0); |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2079 } |
|
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2080 |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2081 __ bind(slow_case); |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2082 { |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2083 StubFrame f(sasm, "graal_monitorenter", dont_gc_arguments); |
|
3714
b648304ba4ff
Change Graal monitor enter and exit from BasicObjectLock to BasicLock
Christian Wimmer <christian.wimmer@oracle.com>
parents:
3705
diff
changeset
|
2084 OopMap* map = save_live_registers(sasm, 2, save_fpu_registers); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2085 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2086 // Called with store_parameter and not C abi |
|
3714
b648304ba4ff
Change Graal monitor enter and exit from BasicObjectLock to BasicLock
Christian Wimmer <christian.wimmer@oracle.com>
parents:
3705
diff
changeset
|
2087 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, graal_monitorenter), obj, lock); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2088 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2089 oop_maps = new OopMapSet(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2090 oop_maps->add_gc_map(call_offset, map); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2091 restore_live_registers(sasm, save_fpu_registers); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2092 } |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2093 __ ret(0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2094 break; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2095 } |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2096 case graal_monitorexit_id: { |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2097 Label slow_case; |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2098 |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2099 Register obj = j_rarg0; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2100 Register lock = j_rarg1; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2101 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2102 // needed in rax later on... |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2103 Register lock2 = rax; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2104 __ mov(lock2, lock); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2105 Register scratch1 = rbx; |
|
1942
00bc9eaf0e24
Support for -XX:+UseFastLocking flag. Fixed monitor enter XIR template for correct debug info at the runtime call.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1930
diff
changeset
|
2106 assert_different_registers(obj, lock, scratch1, lock2); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2107 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2108 // copied from LIR_Assembler::emit_lock |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2109 if (UseFastLocking) { |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2110 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); |
|
3714
b648304ba4ff
Change Graal monitor enter and exit from BasicObjectLock to BasicLock
Christian Wimmer <christian.wimmer@oracle.com>
parents:
3705
diff
changeset
|
2111 __ unlock_object(scratch1, obj, lock2, slow_case, false); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2112 __ ret(0); |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2113 } |
|
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2114 |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2115 __ bind(slow_case); |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2116 { |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2662
diff
changeset
|
2117 StubFrame f(sasm, "graal_monitorexit", dont_gc_arguments); |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2118 OopMap* map = save_live_registers(sasm, 2, save_fpu_registers); |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2119 |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2120 // note: really a leaf routine but must setup last java sp |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2121 // => use call_RT for now (speed can be improved by |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2122 // doing last java sp setup manually) |
|
3714
b648304ba4ff
Change Graal monitor enter and exit from BasicObjectLock to BasicLock
Christian Wimmer <christian.wimmer@oracle.com>
parents:
3705
diff
changeset
|
2123 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, graal_monitorexit), obj, lock); |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2124 |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2125 oop_maps = new OopMapSet(); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2126 oop_maps->add_gc_map(call_offset, map); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2127 restore_live_registers(sasm, save_fpu_registers); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2128 } |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2129 __ ret(0); |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2130 break; |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2131 } |
|
1429
abc670a709dc
* -XX:TraceC1X=0...5 controls the native c1x tracing
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1423
diff
changeset
|
2132 |
|
1434
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2133 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2134 |
|
72cfb36c6bb2
* enabled all jtt tests
Lukas Stadler <lukas.stadler@oracle.com>
parents:
1429
diff
changeset
|
2135 |
| 0 | 2136 default: |
| 2137 { StubFrame f(sasm, "unimplemented entry", dont_gc_arguments); | |
| 304 | 2138 __ movptr(rax, (int)id); |
| 0 | 2139 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), rax); |
| 2140 __ should_not_reach_here(); | |
| 2141 } | |
| 2142 break; | |
| 2143 } | |
| 2144 return oop_maps; | |
| 2145 } | |
| 2146 | |
| 2147 #undef __ | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1579
diff
changeset
|
2148 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1579
diff
changeset
|
2149 const char *Runtime1::pd_name_for_address(address entry) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1579
diff
changeset
|
2150 return "<unknown function>"; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1579
diff
changeset
|
2151 } |