Mercurial > hg > graal-jvmci-8
annotate src/cpu/x86/vm/c1_Runtime1_x86.cpp @ 24166:dad95e57f1de
Update MDO with Reason_not_compiled_exception_handler
| author | Tom Rodriguez <tom.rodriguez@oracle.com> |
|---|---|
| date | Mon, 14 Aug 2017 08:55:23 -0700 |
| parents | dd9cc155639c |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/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" | |
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32 #include "oops/compiledICHolder.hpp" |
| 1972 | 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" | |
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39 #include "utilities/macros.hpp" |
| 1972 | 40 #include "vmreg_x86.inline.hpp" |
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41 #if INCLUDE_ALL_GCS |
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42 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
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43 #endif |
| 0 | 44 |
| 45 | |
| 46 // Implementation of StubAssembler | |
| 47 | |
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48 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, int args_size) { |
| 0 | 49 // setup registers |
| 304 | 50 const Register thread = NOT_LP64(rdi) LP64_ONLY(r15_thread); // is callee-saved register (Visual C++ calling conventions) |
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51 assert(!(oop_result1->is_valid() || metadata_result->is_valid()) || oop_result1 != metadata_result, "registers must be different"); |
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52 assert(oop_result1 != thread && metadata_result != thread, "registers must be different"); |
| 0 | 53 assert(args_size >= 0, "illegal args_size"); |
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54 bool align_stack = false; |
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55 #ifdef _LP64 |
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56 // At a method handle call, the stack may not be properly aligned |
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57 // when returning with an exception. |
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58 align_stack = (stub_id() == Runtime1::handle_exception_from_callee_id); |
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59 #endif |
| 0 | 60 |
| 304 | 61 #ifdef _LP64 |
| 62 mov(c_rarg0, thread); | |
| 63 set_num_rt_args(0); // Nothing on stack | |
| 64 #else | |
| 0 | 65 set_num_rt_args(1 + args_size); |
| 66 | |
| 67 // push java thread (becomes first argument of C function) | |
| 68 get_thread(thread); | |
| 304 | 69 push(thread); |
| 70 #endif // _LP64 | |
| 0 | 71 |
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72 int call_offset; |
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73 if (!align_stack) { |
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74 set_last_Java_frame(thread, noreg, rbp, NULL); |
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75 } else { |
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76 address the_pc = pc(); |
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77 call_offset = offset(); |
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78 set_last_Java_frame(thread, noreg, rbp, the_pc); |
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79 andptr(rsp, -(StackAlignmentInBytes)); // Align stack |
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80 } |
| 304 | 81 |
| 0 | 82 // do the call |
| 83 call(RuntimeAddress(entry)); | |
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84 if (!align_stack) { |
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85 call_offset = offset(); |
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86 } |
| 0 | 87 // verify callee-saved register |
| 88 #ifdef ASSERT | |
| 89 guarantee(thread != rax, "change this code"); | |
| 304 | 90 push(rax); |
| 0 | 91 { Label L; |
| 92 get_thread(rax); | |
| 304 | 93 cmpptr(thread, rax); |
| 0 | 94 jcc(Assembler::equal, L); |
| 95 int3(); | |
| 96 stop("StubAssembler::call_RT: rdi not callee saved?"); | |
| 97 bind(L); | |
| 98 } | |
| 304 | 99 pop(rax); |
| 0 | 100 #endif |
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101 reset_last_Java_frame(thread, true, align_stack); |
| 0 | 102 |
| 103 // discard thread and arguments | |
| 304 | 104 NOT_LP64(addptr(rsp, num_rt_args()*BytesPerWord)); |
| 0 | 105 |
| 106 // check for pending exceptions | |
| 107 { Label L; | |
| 304 | 108 cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 109 jcc(Assembler::equal, L); |
| 110 // exception pending => remove activation and forward to exception handler | |
| 304 | 111 movptr(rax, Address(thread, Thread::pending_exception_offset())); |
| 0 | 112 // make sure that the vm_results are cleared |
| 113 if (oop_result1->is_valid()) { | |
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114 movptr(Address(thread, JavaThread::vm_result_offset()), NULL_WORD); |
| 0 | 115 } |
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116 if (metadata_result->is_valid()) { |
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117 movptr(Address(thread, JavaThread::vm_result_2_offset()), NULL_WORD); |
| 0 | 118 } |
| 119 if (frame_size() == no_frame_size) { | |
| 120 leave(); | |
| 121 jump(RuntimeAddress(StubRoutines::forward_exception_entry())); | |
| 122 } else if (_stub_id == Runtime1::forward_exception_id) { | |
| 123 should_not_reach_here(); | |
| 124 } else { | |
| 125 jump(RuntimeAddress(Runtime1::entry_for(Runtime1::forward_exception_id))); | |
| 126 } | |
| 127 bind(L); | |
| 128 } | |
| 129 // get oop results if there are any and reset the values in the thread | |
| 130 if (oop_result1->is_valid()) { | |
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131 get_vm_result(oop_result1, thread); |
| 0 | 132 } |
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133 if (metadata_result->is_valid()) { |
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134 get_vm_result_2(metadata_result, thread); |
| 0 | 135 } |
| 136 return call_offset; | |
| 137 } | |
| 138 | |
| 139 | |
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140 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1) { |
| 304 | 141 #ifdef _LP64 |
| 142 mov(c_rarg1, arg1); | |
| 143 #else | |
| 144 push(arg1); | |
| 145 #endif // _LP64 | |
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146 return call_RT(oop_result1, metadata_result, entry, 1); |
| 0 | 147 } |
| 148 | |
| 149 | |
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150 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2) { |
| 304 | 151 #ifdef _LP64 |
| 152 if (c_rarg1 == arg2) { | |
| 153 if (c_rarg2 == arg1) { | |
| 154 xchgq(arg1, arg2); | |
| 155 } else { | |
| 156 mov(c_rarg2, arg2); | |
| 157 mov(c_rarg1, arg1); | |
| 158 } | |
| 159 } else { | |
| 160 mov(c_rarg1, arg1); | |
| 161 mov(c_rarg2, arg2); | |
| 162 } | |
| 163 #else | |
| 164 push(arg2); | |
| 165 push(arg1); | |
| 166 #endif // _LP64 | |
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167 return call_RT(oop_result1, metadata_result, entry, 2); |
| 0 | 168 } |
| 169 | |
| 170 | |
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171 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3) { |
| 304 | 172 #ifdef _LP64 |
| 173 // if there is any conflict use the stack | |
| 174 if (arg1 == c_rarg2 || arg1 == c_rarg3 || | |
| 175 arg2 == c_rarg1 || arg1 == c_rarg3 || | |
| 176 arg3 == c_rarg1 || arg1 == c_rarg2) { | |
| 177 push(arg3); | |
| 178 push(arg2); | |
| 179 push(arg1); | |
| 180 pop(c_rarg1); | |
| 181 pop(c_rarg2); | |
| 182 pop(c_rarg3); | |
| 183 } else { | |
| 184 mov(c_rarg1, arg1); | |
| 185 mov(c_rarg2, arg2); | |
| 186 mov(c_rarg3, arg3); | |
| 187 } | |
| 188 #else | |
| 189 push(arg3); | |
| 190 push(arg2); | |
| 191 push(arg1); | |
| 192 #endif // _LP64 | |
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193 return call_RT(oop_result1, metadata_result, entry, 3); |
| 0 | 194 } |
| 195 | |
| 196 | |
| 197 // Implementation of StubFrame | |
| 198 | |
| 199 class StubFrame: public StackObj { | |
| 200 private: | |
| 201 StubAssembler* _sasm; | |
| 202 | |
| 203 public: | |
| 204 StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments); | |
| 205 void load_argument(int offset_in_words, Register reg); | |
| 206 | |
| 207 ~StubFrame(); | |
| 208 }; | |
| 209 | |
| 210 | |
| 211 #define __ _sasm-> | |
| 212 | |
| 213 StubFrame::StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments) { | |
| 214 _sasm = sasm; | |
| 215 __ set_info(name, must_gc_arguments); | |
| 216 __ enter(); | |
| 217 } | |
| 218 | |
| 219 // load parameters that were stored with LIR_Assembler::store_parameter | |
| 220 // Note: offsets for store_parameter and load_argument must match | |
| 221 void StubFrame::load_argument(int offset_in_words, Register reg) { | |
| 222 // rbp, + 0: link | |
| 223 // + 1: return address | |
| 224 // + 2: argument with offset 0 | |
| 225 // + 3: argument with offset 1 | |
| 226 // + 4: ... | |
| 227 | |
| 304 | 228 __ movptr(reg, Address(rbp, (offset_in_words + 2) * BytesPerWord)); |
| 0 | 229 } |
| 230 | |
| 231 | |
| 232 StubFrame::~StubFrame() { | |
| 233 __ leave(); | |
| 234 __ ret(0); | |
| 235 } | |
| 236 | |
| 237 #undef __ | |
| 238 | |
| 239 | |
| 240 // Implementation of Runtime1 | |
| 241 | |
| 242 #define __ sasm-> | |
| 243 | |
| 304 | 244 const int float_regs_as_doubles_size_in_slots = pd_nof_fpu_regs_frame_map * 2; |
| 245 const int xmm_regs_as_doubles_size_in_slots = FrameMap::nof_xmm_regs * 2; | |
| 0 | 246 |
| 247 // Stack layout for saving/restoring all the registers needed during a runtime | |
| 248 // call (this includes deoptimization) | |
| 249 // Note: note that users of this frame may well have arguments to some runtime | |
| 250 // while these values are on the stack. These positions neglect those arguments | |
| 251 // but the code in save_live_registers will take the argument count into | |
| 252 // account. | |
| 253 // | |
| 304 | 254 #ifdef _LP64 |
| 255 #define SLOT2(x) x, | |
| 256 #define SLOT_PER_WORD 2 | |
| 257 #else | |
| 258 #define SLOT2(x) | |
| 259 #define SLOT_PER_WORD 1 | |
| 260 #endif // _LP64 | |
| 261 | |
| 0 | 262 enum reg_save_layout { |
| 304 | 263 // 64bit needs to keep stack 16 byte aligned. So we add some alignment dummies to make that |
| 264 // happen and will assert if the stack size we create is misaligned | |
| 265 #ifdef _LP64 | |
| 266 align_dummy_0, align_dummy_1, | |
| 267 #endif // _LP64 | |
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268 #ifdef _WIN64 |
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269 // Windows always allocates space for it's argument registers (see |
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270 // frame::arg_reg_save_area_bytes). |
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271 arg_reg_save_1, arg_reg_save_1H, // 0, 4 |
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272 arg_reg_save_2, arg_reg_save_2H, // 8, 12 |
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273 arg_reg_save_3, arg_reg_save_3H, // 16, 20 |
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274 arg_reg_save_4, arg_reg_save_4H, // 24, 28 |
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275 #endif // _WIN64 |
| 304 | 276 xmm_regs_as_doubles_off, // 32 |
| 277 float_regs_as_doubles_off = xmm_regs_as_doubles_off + xmm_regs_as_doubles_size_in_slots, // 160 | |
| 278 fpu_state_off = float_regs_as_doubles_off + float_regs_as_doubles_size_in_slots, // 224 | |
| 279 // fpu_state_end_off is exclusive | |
| 280 fpu_state_end_off = fpu_state_off + (FPUStateSizeInWords / SLOT_PER_WORD), // 352 | |
| 281 marker = fpu_state_end_off, SLOT2(markerH) // 352, 356 | |
| 282 extra_space_offset, // 360 | |
| 283 #ifdef _LP64 | |
| 284 r15_off = extra_space_offset, r15H_off, // 360, 364 | |
| 285 r14_off, r14H_off, // 368, 372 | |
| 286 r13_off, r13H_off, // 376, 380 | |
| 287 r12_off, r12H_off, // 384, 388 | |
| 288 r11_off, r11H_off, // 392, 396 | |
| 289 r10_off, r10H_off, // 400, 404 | |
| 290 r9_off, r9H_off, // 408, 412 | |
| 291 r8_off, r8H_off, // 416, 420 | |
| 292 rdi_off, rdiH_off, // 424, 428 | |
| 293 #else | |
| 0 | 294 rdi_off = extra_space_offset, |
| 304 | 295 #endif // _LP64 |
| 296 rsi_off, SLOT2(rsiH_off) // 432, 436 | |
| 297 rbp_off, SLOT2(rbpH_off) // 440, 444 | |
| 298 rsp_off, SLOT2(rspH_off) // 448, 452 | |
| 299 rbx_off, SLOT2(rbxH_off) // 456, 460 | |
| 300 rdx_off, SLOT2(rdxH_off) // 464, 468 | |
| 301 rcx_off, SLOT2(rcxH_off) // 472, 476 | |
| 302 rax_off, SLOT2(raxH_off) // 480, 484 | |
| 303 saved_rbp_off, SLOT2(saved_rbpH_off) // 488, 492 | |
| 304 return_off, SLOT2(returnH_off) // 496, 500 | |
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305 reg_save_frame_size // As noted: neglects any parameters to runtime // 504 |
| 0 | 306 }; |
| 307 | |
| 308 | |
| 309 | |
| 310 // Save off registers which might be killed by calls into the runtime. | |
| 311 // Tries to smart of about FP registers. In particular we separate | |
| 312 // saving and describing the FPU registers for deoptimization since we | |
| 313 // have to save the FPU registers twice if we describe them and on P4 | |
| 314 // saving FPU registers which don't contain anything appears | |
| 315 // expensive. The deopt blob is the only thing which needs to | |
| 316 // describe FPU registers. In all other cases it should be sufficient | |
| 317 // to simply save their current value. | |
| 318 | |
| 319 static OopMap* generate_oop_map(StubAssembler* sasm, int num_rt_args, | |
| 320 bool save_fpu_registers = true) { | |
| 304 | 321 |
| 322 // In 64bit all the args are in regs so there are no additional stack slots | |
| 323 LP64_ONLY(num_rt_args = 0); | |
| 324 LP64_ONLY(assert((reg_save_frame_size * VMRegImpl::stack_slot_size) % 16 == 0, "must be 16 byte aligned");) | |
| 325 int frame_size_in_slots = reg_save_frame_size + num_rt_args; // args + thread | |
| 326 sasm->set_frame_size(frame_size_in_slots / VMRegImpl::slots_per_word ); | |
| 0 | 327 |
| 328 // record saved value locations in an OopMap | |
| 329 // locations are offsets from sp after runtime call; num_rt_args is number of arguments in call, including thread | |
| 304 | 330 OopMap* map = new OopMap(frame_size_in_slots, 0); |
| 0 | 331 map->set_callee_saved(VMRegImpl::stack2reg(rax_off + num_rt_args), rax->as_VMReg()); |
| 332 map->set_callee_saved(VMRegImpl::stack2reg(rcx_off + num_rt_args), rcx->as_VMReg()); | |
| 333 map->set_callee_saved(VMRegImpl::stack2reg(rdx_off + num_rt_args), rdx->as_VMReg()); | |
| 334 map->set_callee_saved(VMRegImpl::stack2reg(rbx_off + num_rt_args), rbx->as_VMReg()); | |
| 335 map->set_callee_saved(VMRegImpl::stack2reg(rsi_off + num_rt_args), rsi->as_VMReg()); | |
| 336 map->set_callee_saved(VMRegImpl::stack2reg(rdi_off + num_rt_args), rdi->as_VMReg()); | |
| 304 | 337 #ifdef _LP64 |
| 338 map->set_callee_saved(VMRegImpl::stack2reg(r8_off + num_rt_args), r8->as_VMReg()); | |
| 339 map->set_callee_saved(VMRegImpl::stack2reg(r9_off + num_rt_args), r9->as_VMReg()); | |
| 340 map->set_callee_saved(VMRegImpl::stack2reg(r10_off + num_rt_args), r10->as_VMReg()); | |
| 341 map->set_callee_saved(VMRegImpl::stack2reg(r11_off + num_rt_args), r11->as_VMReg()); | |
| 342 map->set_callee_saved(VMRegImpl::stack2reg(r12_off + num_rt_args), r12->as_VMReg()); | |
| 343 map->set_callee_saved(VMRegImpl::stack2reg(r13_off + num_rt_args), r13->as_VMReg()); | |
| 344 map->set_callee_saved(VMRegImpl::stack2reg(r14_off + num_rt_args), r14->as_VMReg()); | |
| 345 map->set_callee_saved(VMRegImpl::stack2reg(r15_off + num_rt_args), r15->as_VMReg()); | |
| 346 | |
| 347 // This is stupid but needed. | |
| 348 map->set_callee_saved(VMRegImpl::stack2reg(raxH_off + num_rt_args), rax->as_VMReg()->next()); | |
| 349 map->set_callee_saved(VMRegImpl::stack2reg(rcxH_off + num_rt_args), rcx->as_VMReg()->next()); | |
| 350 map->set_callee_saved(VMRegImpl::stack2reg(rdxH_off + num_rt_args), rdx->as_VMReg()->next()); | |
| 351 map->set_callee_saved(VMRegImpl::stack2reg(rbxH_off + num_rt_args), rbx->as_VMReg()->next()); | |
| 352 map->set_callee_saved(VMRegImpl::stack2reg(rsiH_off + num_rt_args), rsi->as_VMReg()->next()); | |
| 353 map->set_callee_saved(VMRegImpl::stack2reg(rdiH_off + num_rt_args), rdi->as_VMReg()->next()); | |
| 354 | |
| 355 map->set_callee_saved(VMRegImpl::stack2reg(r8H_off + num_rt_args), r8->as_VMReg()->next()); | |
| 356 map->set_callee_saved(VMRegImpl::stack2reg(r9H_off + num_rt_args), r9->as_VMReg()->next()); | |
| 357 map->set_callee_saved(VMRegImpl::stack2reg(r10H_off + num_rt_args), r10->as_VMReg()->next()); | |
| 358 map->set_callee_saved(VMRegImpl::stack2reg(r11H_off + num_rt_args), r11->as_VMReg()->next()); | |
| 359 map->set_callee_saved(VMRegImpl::stack2reg(r12H_off + num_rt_args), r12->as_VMReg()->next()); | |
| 360 map->set_callee_saved(VMRegImpl::stack2reg(r13H_off + num_rt_args), r13->as_VMReg()->next()); | |
| 361 map->set_callee_saved(VMRegImpl::stack2reg(r14H_off + num_rt_args), r14->as_VMReg()->next()); | |
| 362 map->set_callee_saved(VMRegImpl::stack2reg(r15H_off + num_rt_args), r15->as_VMReg()->next()); | |
| 363 #endif // _LP64 | |
| 0 | 364 |
| 365 if (save_fpu_registers) { | |
| 366 if (UseSSE < 2) { | |
| 367 int fpu_off = float_regs_as_doubles_off; | |
| 368 for (int n = 0; n < FrameMap::nof_fpu_regs; n++) { | |
| 369 VMReg fpu_name_0 = FrameMap::fpu_regname(n); | |
| 370 map->set_callee_saved(VMRegImpl::stack2reg(fpu_off + num_rt_args), fpu_name_0); | |
| 371 // %%% This is really a waste but we'll keep things as they were for now | |
| 372 if (true) { | |
| 373 map->set_callee_saved(VMRegImpl::stack2reg(fpu_off + 1 + num_rt_args), fpu_name_0->next()); | |
| 374 } | |
| 375 fpu_off += 2; | |
| 376 } | |
| 377 assert(fpu_off == fpu_state_off, "incorrect number of fpu stack slots"); | |
| 378 } | |
| 379 | |
| 380 if (UseSSE >= 2) { | |
| 381 int xmm_off = xmm_regs_as_doubles_off; | |
| 382 for (int n = 0; n < FrameMap::nof_xmm_regs; n++) { | |
| 383 VMReg xmm_name_0 = as_XMMRegister(n)->as_VMReg(); | |
| 384 map->set_callee_saved(VMRegImpl::stack2reg(xmm_off + num_rt_args), xmm_name_0); | |
| 385 // %%% This is really a waste but we'll keep things as they were for now | |
| 386 if (true) { | |
| 387 map->set_callee_saved(VMRegImpl::stack2reg(xmm_off + 1 + num_rt_args), xmm_name_0->next()); | |
| 388 } | |
| 389 xmm_off += 2; | |
| 390 } | |
| 391 assert(xmm_off == float_regs_as_doubles_off, "incorrect number of xmm registers"); | |
| 392 | |
| 393 } else if (UseSSE == 1) { | |
| 394 int xmm_off = xmm_regs_as_doubles_off; | |
| 395 for (int n = 0; n < FrameMap::nof_xmm_regs; n++) { | |
| 396 VMReg xmm_name_0 = as_XMMRegister(n)->as_VMReg(); | |
| 397 map->set_callee_saved(VMRegImpl::stack2reg(xmm_off + num_rt_args), xmm_name_0); | |
| 398 xmm_off += 2; | |
| 399 } | |
| 400 assert(xmm_off == float_regs_as_doubles_off, "incorrect number of xmm registers"); | |
| 401 } | |
| 402 } | |
| 403 | |
| 404 return map; | |
| 405 } | |
| 406 | |
| 407 static OopMap* save_live_registers(StubAssembler* sasm, int num_rt_args, | |
| 408 bool save_fpu_registers = true) { | |
| 409 __ block_comment("save_live_registers"); | |
| 410 | |
| 304 | 411 __ pusha(); // integer registers |
| 0 | 412 |
| 413 // assert(float_regs_as_doubles_off % 2 == 0, "misaligned offset"); | |
| 414 // assert(xmm_regs_as_doubles_off % 2 == 0, "misaligned offset"); | |
| 415 | |
| 304 | 416 __ subptr(rsp, extra_space_offset * VMRegImpl::stack_slot_size); |
| 0 | 417 |
| 418 #ifdef ASSERT | |
| 304 | 419 __ movptr(Address(rsp, marker * VMRegImpl::stack_slot_size), (int32_t)0xfeedbeef); |
| 0 | 420 #endif |
| 421 | |
| 422 if (save_fpu_registers) { | |
| 423 if (UseSSE < 2) { | |
| 424 // save FPU stack | |
| 304 | 425 __ fnsave(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size)); |
| 0 | 426 __ fwait(); |
| 427 | |
| 428 #ifdef ASSERT | |
| 429 Label ok; | |
| 304 | 430 __ cmpw(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size), StubRoutines::fpu_cntrl_wrd_std()); |
| 0 | 431 __ jccb(Assembler::equal, ok); |
| 432 __ stop("corrupted control word detected"); | |
| 433 __ bind(ok); | |
| 434 #endif | |
| 435 | |
| 436 // Reset the control word to guard against exceptions being unmasked | |
| 437 // since fstp_d can cause FPU stack underflow exceptions. Write it | |
| 438 // into the on stack copy and then reload that to make sure that the | |
| 439 // current and future values are correct. | |
| 304 | 440 __ movw(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size), StubRoutines::fpu_cntrl_wrd_std()); |
| 441 __ frstor(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size)); | |
| 0 | 442 |
| 443 // Save the FPU registers in de-opt-able form | |
| 304 | 444 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0)); |
| 445 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8)); | |
| 446 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16)); | |
| 447 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24)); | |
| 448 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32)); | |
| 449 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40)); | |
| 450 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48)); | |
| 451 __ fstp_d(Address(rsp, float_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56)); | |
| 0 | 452 } |
| 453 | |
| 454 if (UseSSE >= 2) { | |
| 455 // save XMM registers | |
| 456 // XMM registers can contain float or double values, but this is not known here, | |
| 457 // so always save them as doubles. | |
| 458 // note that float values are _not_ converted automatically, so for float values | |
| 459 // the second word contains only garbage data. | |
| 304 | 460 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0), xmm0); |
| 461 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8), xmm1); | |
| 462 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16), xmm2); | |
| 463 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24), xmm3); | |
| 464 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32), xmm4); | |
| 465 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40), xmm5); | |
| 466 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48), xmm6); | |
| 467 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56), xmm7); | |
| 468 #ifdef _LP64 | |
| 469 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 64), xmm8); | |
| 470 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 72), xmm9); | |
| 471 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 80), xmm10); | |
| 472 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 88), xmm11); | |
| 473 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 96), xmm12); | |
| 474 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 104), xmm13); | |
| 475 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 112), xmm14); | |
| 476 __ movdbl(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 120), xmm15); | |
| 477 #endif // _LP64 | |
| 0 | 478 } else if (UseSSE == 1) { |
| 479 // save XMM registers as float because double not supported without SSE2 | |
| 304 | 480 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0), xmm0); |
| 481 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8), xmm1); | |
| 482 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16), xmm2); | |
| 483 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24), xmm3); | |
| 484 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32), xmm4); | |
| 485 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40), xmm5); | |
| 486 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48), xmm6); | |
| 487 __ movflt(Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56), xmm7); | |
| 0 | 488 } |
| 489 } | |
| 490 | |
| 491 // FPU stack must be empty now | |
| 492 __ verify_FPU(0, "save_live_registers"); | |
| 493 | |
| 494 return generate_oop_map(sasm, num_rt_args, save_fpu_registers); | |
| 495 } | |
| 496 | |
| 497 | |
| 498 static void restore_fpu(StubAssembler* sasm, bool restore_fpu_registers = true) { | |
| 499 if (restore_fpu_registers) { | |
| 500 if (UseSSE >= 2) { | |
| 501 // restore XMM registers | |
| 304 | 502 __ movdbl(xmm0, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0)); |
| 503 __ movdbl(xmm1, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8)); | |
| 504 __ movdbl(xmm2, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16)); | |
| 505 __ movdbl(xmm3, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24)); | |
| 506 __ movdbl(xmm4, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32)); | |
| 507 __ movdbl(xmm5, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40)); | |
| 508 __ movdbl(xmm6, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48)); | |
| 509 __ movdbl(xmm7, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56)); | |
| 510 #ifdef _LP64 | |
| 511 __ movdbl(xmm8, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 64)); | |
| 512 __ movdbl(xmm9, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 72)); | |
| 513 __ movdbl(xmm10, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 80)); | |
| 514 __ movdbl(xmm11, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 88)); | |
| 515 __ movdbl(xmm12, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 96)); | |
| 516 __ movdbl(xmm13, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 104)); | |
| 517 __ movdbl(xmm14, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 112)); | |
| 518 __ movdbl(xmm15, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 120)); | |
| 519 #endif // _LP64 | |
| 0 | 520 } else if (UseSSE == 1) { |
| 521 // restore XMM registers | |
| 304 | 522 __ movflt(xmm0, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 0)); |
| 523 __ movflt(xmm1, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 8)); | |
| 524 __ movflt(xmm2, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 16)); | |
| 525 __ movflt(xmm3, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 24)); | |
| 526 __ movflt(xmm4, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 32)); | |
| 527 __ movflt(xmm5, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 40)); | |
| 528 __ movflt(xmm6, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 48)); | |
| 529 __ movflt(xmm7, Address(rsp, xmm_regs_as_doubles_off * VMRegImpl::stack_slot_size + 56)); | |
| 0 | 530 } |
| 531 | |
| 532 if (UseSSE < 2) { | |
| 304 | 533 __ frstor(Address(rsp, fpu_state_off * VMRegImpl::stack_slot_size)); |
| 0 | 534 } else { |
| 535 // check that FPU stack is really empty | |
| 536 __ verify_FPU(0, "restore_live_registers"); | |
| 537 } | |
| 538 | |
| 539 } else { | |
| 540 // check that FPU stack is really empty | |
| 541 __ verify_FPU(0, "restore_live_registers"); | |
| 542 } | |
| 543 | |
| 544 #ifdef ASSERT | |
| 545 { | |
| 546 Label ok; | |
| 304 | 547 __ cmpptr(Address(rsp, marker * VMRegImpl::stack_slot_size), (int32_t)0xfeedbeef); |
| 0 | 548 __ jcc(Assembler::equal, ok); |
| 549 __ stop("bad offsets in frame"); | |
| 550 __ bind(ok); | |
| 551 } | |
| 304 | 552 #endif // ASSERT |
| 0 | 553 |
| 304 | 554 __ addptr(rsp, extra_space_offset * VMRegImpl::stack_slot_size); |
| 0 | 555 } |
| 556 | |
| 557 | |
| 558 static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true) { | |
| 559 __ block_comment("restore_live_registers"); | |
| 560 | |
| 561 restore_fpu(sasm, restore_fpu_registers); | |
| 304 | 562 __ popa(); |
| 0 | 563 } |
| 564 | |
| 565 | |
| 566 static void restore_live_registers_except_rax(StubAssembler* sasm, bool restore_fpu_registers = true) { | |
| 567 __ block_comment("restore_live_registers_except_rax"); | |
| 568 | |
| 569 restore_fpu(sasm, restore_fpu_registers); | |
| 570 | |
| 304 | 571 #ifdef _LP64 |
| 572 __ movptr(r15, Address(rsp, 0)); | |
| 573 __ movptr(r14, Address(rsp, wordSize)); | |
| 574 __ movptr(r13, Address(rsp, 2 * wordSize)); | |
| 575 __ movptr(r12, Address(rsp, 3 * wordSize)); | |
| 576 __ movptr(r11, Address(rsp, 4 * wordSize)); | |
| 577 __ movptr(r10, Address(rsp, 5 * wordSize)); | |
| 578 __ movptr(r9, Address(rsp, 6 * wordSize)); | |
| 579 __ movptr(r8, Address(rsp, 7 * wordSize)); | |
| 580 __ movptr(rdi, Address(rsp, 8 * wordSize)); | |
| 581 __ movptr(rsi, Address(rsp, 9 * wordSize)); | |
| 582 __ movptr(rbp, Address(rsp, 10 * wordSize)); | |
| 583 // skip rsp | |
| 584 __ movptr(rbx, Address(rsp, 12 * wordSize)); | |
| 585 __ movptr(rdx, Address(rsp, 13 * wordSize)); | |
| 586 __ movptr(rcx, Address(rsp, 14 * wordSize)); | |
| 587 | |
| 588 __ addptr(rsp, 16 * wordSize); | |
| 589 #else | |
| 590 | |
| 591 __ pop(rdi); | |
| 592 __ pop(rsi); | |
| 593 __ pop(rbp); | |
| 594 __ pop(rbx); // skip this value | |
| 595 __ pop(rbx); | |
| 596 __ pop(rdx); | |
| 597 __ pop(rcx); | |
| 598 __ addptr(rsp, BytesPerWord); | |
| 599 #endif // _LP64 | |
| 0 | 600 } |
| 601 | |
| 602 | |
| 603 void Runtime1::initialize_pd() { | |
| 604 // nothing to do | |
| 605 } | |
| 606 | |
| 607 | |
| 608 // target: the entry point of the method that creates and posts the exception oop | |
| 609 // has_argument: true if the exception needs an argument (passed on stack because registers must be preserved) | |
| 610 | |
| 611 OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) { | |
| 612 // preserve all registers | |
| 613 int num_rt_args = has_argument ? 2 : 1; | |
| 614 OopMap* oop_map = save_live_registers(sasm, num_rt_args); | |
| 615 | |
| 616 // now all registers are saved and can be used freely | |
| 617 // verify that no old value is used accidentally | |
| 618 __ invalidate_registers(true, true, true, true, true, true); | |
| 619 | |
| 620 // registers used by this stub | |
| 621 const Register temp_reg = rbx; | |
| 622 | |
| 623 // load argument for exception that is passed as an argument into the stub | |
| 624 if (has_argument) { | |
| 304 | 625 #ifdef _LP64 |
| 626 __ movptr(c_rarg1, Address(rbp, 2*BytesPerWord)); | |
| 627 #else | |
| 628 __ movptr(temp_reg, Address(rbp, 2*BytesPerWord)); | |
| 629 __ push(temp_reg); | |
| 630 #endif // _LP64 | |
| 0 | 631 } |
| 632 int call_offset = __ call_RT(noreg, noreg, target, num_rt_args - 1); | |
| 633 | |
| 634 OopMapSet* oop_maps = new OopMapSet(); | |
| 635 oop_maps->add_gc_map(call_offset, oop_map); | |
| 636 | |
| 637 __ stop("should not reach here"); | |
| 638 | |
| 639 return oop_maps; | |
| 640 } | |
| 641 | |
| 642 | |
|
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643 OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler *sasm) { |
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644 __ block_comment("generate_handle_exception"); |
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645 |
| 0 | 646 // incoming parameters |
| 647 const Register exception_oop = rax; | |
|
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648 const Register exception_pc = rdx; |
| 0 | 649 // other registers used in this stub |
| 304 | 650 const Register thread = NOT_LP64(rdi) LP64_ONLY(r15_thread); |
| 0 | 651 |
|
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652 // Save registers, if required. |
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653 OopMapSet* oop_maps = new OopMapSet(); |
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654 OopMap* oop_map = NULL; |
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655 switch (id) { |
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656 case forward_exception_id: |
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657 // We're handling an exception in the context of a compiled frame. |
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658 // The registers have been saved in the standard places. Perform |
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659 // an exception lookup in the caller and dispatch to the handler |
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660 // if found. Otherwise unwind and dispatch to the callers |
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661 // exception handler. |
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662 oop_map = generate_oop_map(sasm, 1 /*thread*/); |
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663 |
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664 // load and clear pending exception oop into RAX |
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665 __ movptr(exception_oop, Address(thread, Thread::pending_exception_offset())); |
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666 __ movptr(Address(thread, Thread::pending_exception_offset()), NULL_WORD); |
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667 |
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668 // load issuing PC (the return address for this stub) into rdx |
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669 __ movptr(exception_pc, Address(rbp, 1*BytesPerWord)); |
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670 |
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671 // make sure that the vm_results are cleared (may be unnecessary) |
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672 __ movptr(Address(thread, JavaThread::vm_result_offset()), NULL_WORD); |
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673 __ movptr(Address(thread, JavaThread::vm_result_2_offset()), NULL_WORD); |
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674 break; |
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675 case handle_exception_nofpu_id: |
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676 case handle_exception_id: |
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677 // At this point all registers MAY be live. |
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678 oop_map = save_live_registers(sasm, 1 /*thread*/, id != handle_exception_nofpu_id); |
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679 break; |
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680 case handle_exception_from_callee_id: { |
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681 // At this point all registers except exception oop (RAX) and |
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682 // exception pc (RDX) are dead. |
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683 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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684 oop_map = new OopMap(frame_size * VMRegImpl::slots_per_word, 0); |
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685 sasm->set_frame_size(frame_size); |
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686 WIN64_ONLY(__ subq(rsp, frame::arg_reg_save_area_bytes)); |
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687 break; |
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688 } |
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689 default: ShouldNotReachHere(); |
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690 } |
| 0 | 691 |
| 692 #ifdef TIERED | |
| 693 // C2 can leave the fpu stack dirty | |
|
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694 if (UseSSE < 2) { |
| 0 | 695 __ empty_FPU_stack(); |
| 696 } | |
| 697 #endif // TIERED | |
| 698 | |
| 699 // verify that only rax, and rdx is valid at this time | |
| 700 __ invalidate_registers(false, true, true, false, true, true); | |
| 701 // verify that rax, contains a valid exception | |
| 702 __ verify_not_null_oop(exception_oop); | |
| 703 | |
| 704 // load address of JavaThread object for thread-local data | |
| 304 | 705 NOT_LP64(__ get_thread(thread);) |
| 0 | 706 |
| 707 #ifdef ASSERT | |
| 708 // check that fields in JavaThread for exception oop and issuing pc are | |
| 709 // empty before writing to them | |
| 710 Label oop_empty; | |
| 304 | 711 __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), (int32_t) NULL_WORD); |
| 0 | 712 __ jcc(Assembler::equal, oop_empty); |
| 713 __ stop("exception oop already set"); | |
| 714 __ bind(oop_empty); | |
| 715 | |
| 716 Label pc_empty; | |
| 304 | 717 __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), 0); |
| 0 | 718 __ jcc(Assembler::equal, pc_empty); |
| 719 __ stop("exception pc already set"); | |
| 720 __ bind(pc_empty); | |
| 721 #endif | |
| 722 | |
| 723 // save exception oop and issuing pc into JavaThread | |
| 724 // (exception handler will load it from here) | |
| 304 | 725 __ movptr(Address(thread, JavaThread::exception_oop_offset()), exception_oop); |
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726 __ movptr(Address(thread, JavaThread::exception_pc_offset()), exception_pc); |
| 0 | 727 |
| 728 // patch throwing pc into return address (has bci & oop map) | |
| 304 | 729 __ movptr(Address(rbp, 1*BytesPerWord), exception_pc); |
| 0 | 730 |
| 731 // compute the exception handler. | |
| 732 // the exception oop and the throwing pc are read from the fields in JavaThread | |
| 733 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc)); | |
| 734 oop_maps->add_gc_map(call_offset, oop_map); | |
| 735 | |
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736 // rax: handler address |
| 0 | 737 // will be the deopt blob if nmethod was deoptimized while we looked up |
| 738 // handler regardless of whether handler existed in the nmethod. | |
| 739 | |
| 740 // only rax, is valid at this time, all other registers have been destroyed by the runtime call | |
| 741 __ invalidate_registers(false, true, true, true, true, true); | |
| 742 | |
|
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743 // patch the return address, this stub will directly return to the exception handler |
| 304 | 744 __ movptr(Address(rbp, 1*BytesPerWord), rax); |
| 0 | 745 |
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746 switch (id) { |
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747 case forward_exception_id: |
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748 case handle_exception_nofpu_id: |
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749 case handle_exception_id: |
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750 // Restore the registers that were saved at the beginning. |
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751 restore_live_registers(sasm, id != handle_exception_nofpu_id); |
|
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752 break; |
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753 case handle_exception_from_callee_id: |
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754 // WIN64_ONLY: No need to add frame::arg_reg_save_area_bytes to SP |
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755 // since we do a leave anyway. |
| 0 | 756 |
|
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757 // Pop the return address. |
|
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758 __ leave(); |
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759 __ pop(rcx); |
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760 __ jmp(rcx); // jump to exception handler |
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761 break; |
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762 default: ShouldNotReachHere(); |
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763 } |
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764 |
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765 return oop_maps; |
| 0 | 766 } |
| 767 | |
| 768 | |
| 769 void Runtime1::generate_unwind_exception(StubAssembler *sasm) { | |
| 770 // incoming parameters | |
| 771 const Register exception_oop = rax; | |
| 1295 | 772 // callee-saved copy of exception_oop during runtime call |
| 773 const Register exception_oop_callee_saved = NOT_LP64(rsi) LP64_ONLY(r14); | |
| 0 | 774 // other registers used in this stub |
| 775 const Register exception_pc = rdx; | |
| 776 const Register handler_addr = rbx; | |
| 304 | 777 const Register thread = NOT_LP64(rdi) LP64_ONLY(r15_thread); |
| 0 | 778 |
| 779 // verify that only rax, is valid at this time | |
| 780 __ invalidate_registers(false, true, true, true, true, true); | |
| 781 | |
| 782 #ifdef ASSERT | |
| 783 // check that fields in JavaThread for exception oop and issuing pc are empty | |
| 304 | 784 NOT_LP64(__ get_thread(thread);) |
| 0 | 785 Label oop_empty; |
| 304 | 786 __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), 0); |
| 0 | 787 __ jcc(Assembler::equal, oop_empty); |
| 788 __ stop("exception oop must be empty"); | |
| 789 __ bind(oop_empty); | |
| 790 | |
| 791 Label pc_empty; | |
| 304 | 792 __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), 0); |
| 0 | 793 __ jcc(Assembler::equal, pc_empty); |
| 794 __ stop("exception pc must be empty"); | |
| 795 __ bind(pc_empty); | |
| 796 #endif | |
| 797 | |
| 798 // clear the FPU stack in case any FPU results are left behind | |
| 799 __ empty_FPU_stack(); | |
| 800 | |
| 1295 | 801 // save exception_oop in callee-saved register to preserve it during runtime calls |
| 802 __ verify_not_null_oop(exception_oop); | |
| 803 __ movptr(exception_oop_callee_saved, exception_oop); | |
| 804 | |
| 805 NOT_LP64(__ get_thread(thread);) | |
| 806 // Get return address (is on top of stack after leave). | |
| 304 | 807 __ movptr(exception_pc, Address(rsp, 0)); |
| 0 | 808 |
| 1295 | 809 // search the exception handler address of the caller (using the return address) |
| 810 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), thread, exception_pc); | |
| 811 // rax: exception handler address of the caller | |
| 0 | 812 |
| 1295 | 813 // Only RAX and RSI are valid at this time, all other registers have been destroyed by the call. |
| 814 __ invalidate_registers(false, true, true, true, false, true); | |
| 0 | 815 |
| 816 // move result of call into correct register | |
| 304 | 817 __ movptr(handler_addr, rax); |
| 0 | 818 |
| 1295 | 819 // Restore exception oop to RAX (required convention of exception handler). |
| 820 __ movptr(exception_oop, exception_oop_callee_saved); | |
| 0 | 821 |
| 1295 | 822 // verify that there is really a valid exception in rax |
| 823 __ verify_not_null_oop(exception_oop); | |
| 0 | 824 |
| 825 // get throwing pc (= return address). | |
| 826 // rdx has been destroyed by the call, so it must be set again | |
| 827 // the pop is also necessary to simulate the effect of a ret(0) | |
| 304 | 828 __ pop(exception_pc); |
| 0 | 829 |
| 830 // continue at exception handler (return address removed) | |
| 831 // note: do *not* remove arguments when unwinding the | |
| 832 // activation since the caller assumes having | |
| 833 // all arguments on the stack when entering the | |
| 834 // runtime to determine the exception handler | |
| 835 // (GC happens at call site with arguments!) | |
| 1295 | 836 // rax: exception oop |
| 0 | 837 // rdx: throwing pc |
| 1295 | 838 // rbx: exception handler |
| 0 | 839 __ jmp(handler_addr); |
| 840 } | |
| 841 | |
| 842 | |
| 843 OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) { | |
| 844 // use the maximum number of runtime-arguments here because it is difficult to | |
| 845 // distinguish each RT-Call. | |
| 846 // Note: This number affects also the RT-Call in generate_handle_exception because | |
| 847 // the oop-map is shared for all calls. | |
| 848 const int num_rt_args = 2; // thread + dummy | |
| 849 | |
| 850 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); | |
| 851 assert(deopt_blob != NULL, "deoptimization blob must have been created"); | |
| 852 | |
| 853 OopMap* oop_map = save_live_registers(sasm, num_rt_args); | |
| 854 | |
| 304 | 855 #ifdef _LP64 |
| 856 const Register thread = r15_thread; | |
| 857 // No need to worry about dummy | |
| 858 __ mov(c_rarg0, thread); | |
| 859 #else | |
| 860 __ push(rax); // push dummy | |
| 0 | 861 |
| 862 const Register thread = rdi; // is callee-saved register (Visual C++ calling conventions) | |
| 863 // push java thread (becomes first argument of C function) | |
| 864 __ get_thread(thread); | |
| 304 | 865 __ push(thread); |
| 866 #endif // _LP64 | |
| 0 | 867 __ set_last_Java_frame(thread, noreg, rbp, NULL); |
| 868 // do the call | |
| 869 __ call(RuntimeAddress(target)); | |
| 870 OopMapSet* oop_maps = new OopMapSet(); | |
| 871 oop_maps->add_gc_map(__ offset(), oop_map); | |
| 872 // verify callee-saved register | |
| 873 #ifdef ASSERT | |
| 874 guarantee(thread != rax, "change this code"); | |
| 304 | 875 __ push(rax); |
| 0 | 876 { Label L; |
| 877 __ get_thread(rax); | |
| 304 | 878 __ cmpptr(thread, rax); |
| 0 | 879 __ jcc(Assembler::equal, L); |
| 304 | 880 __ stop("StubAssembler::call_RT: rdi/r15 not callee saved?"); |
| 0 | 881 __ bind(L); |
| 882 } | |
| 304 | 883 __ pop(rax); |
| 0 | 884 #endif |
| 885 __ reset_last_Java_frame(thread, true, false); | |
| 304 | 886 #ifndef _LP64 |
| 887 __ pop(rcx); // discard thread arg | |
| 888 __ pop(rcx); // discard dummy | |
| 889 #endif // _LP64 | |
| 0 | 890 |
| 891 // check for pending exceptions | |
| 892 { Label L; | |
| 304 | 893 __ cmpptr(Address(thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
| 0 | 894 __ jcc(Assembler::equal, L); |
| 895 // exception pending => remove activation and forward to exception handler | |
| 896 | |
| 304 | 897 __ testptr(rax, rax); // have we deoptimized? |
| 0 | 898 __ jump_cc(Assembler::equal, |
| 899 RuntimeAddress(Runtime1::entry_for(Runtime1::forward_exception_id))); | |
| 900 | |
| 901 // the deopt blob expects exceptions in the special fields of | |
| 902 // JavaThread, so copy and clear pending exception. | |
| 903 | |
| 904 // load and clear pending exception | |
| 304 | 905 __ movptr(rax, Address(thread, Thread::pending_exception_offset())); |
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906 __ movptr(Address(thread, Thread::pending_exception_offset()), NULL_WORD); |
| 0 | 907 |
| 908 // check that there is really a valid exception | |
| 909 __ verify_not_null_oop(rax); | |
| 910 | |
| 911 // load throwing pc: this is the return address of the stub | |
| 304 | 912 __ movptr(rdx, Address(rsp, return_off * VMRegImpl::stack_slot_size)); |
| 0 | 913 |
| 914 #ifdef ASSERT | |
| 915 // check that fields in JavaThread for exception oop and issuing pc are empty | |
| 916 Label oop_empty; | |
| 304 | 917 __ cmpptr(Address(thread, JavaThread::exception_oop_offset()), (int32_t)NULL_WORD); |
| 0 | 918 __ jcc(Assembler::equal, oop_empty); |
| 919 __ stop("exception oop must be empty"); | |
| 920 __ bind(oop_empty); | |
| 921 | |
| 922 Label pc_empty; | |
| 304 | 923 __ cmpptr(Address(thread, JavaThread::exception_pc_offset()), (int32_t)NULL_WORD); |
| 0 | 924 __ jcc(Assembler::equal, pc_empty); |
| 925 __ stop("exception pc must be empty"); | |
| 926 __ bind(pc_empty); | |
| 927 #endif | |
| 928 | |
| 929 // store exception oop and throwing pc to JavaThread | |
| 304 | 930 __ movptr(Address(thread, JavaThread::exception_oop_offset()), rax); |
| 931 __ movptr(Address(thread, JavaThread::exception_pc_offset()), rdx); | |
| 0 | 932 |
| 933 restore_live_registers(sasm); | |
| 934 | |
| 935 __ leave(); | |
| 304 | 936 __ addptr(rsp, BytesPerWord); // remove return address from stack |
| 0 | 937 |
| 938 // Forward the exception directly to deopt blob. We can blow no | |
| 939 // registers and must leave throwing pc on the stack. A patch may | |
| 940 // have values live in registers so the entry point with the | |
| 941 // exception in tls. | |
| 942 __ jump(RuntimeAddress(deopt_blob->unpack_with_exception_in_tls())); | |
| 943 | |
| 944 __ bind(L); | |
| 945 } | |
| 946 | |
| 947 | |
| 948 // Runtime will return true if the nmethod has been deoptimized during | |
| 949 // the patching process. In that case we must do a deopt reexecute instead. | |
| 950 | |
| 951 Label reexecuteEntry, cont; | |
| 952 | |
| 304 | 953 __ testptr(rax, rax); // have we deoptimized? |
| 0 | 954 __ jcc(Assembler::equal, cont); // no |
| 955 | |
| 956 // Will reexecute. Proper return address is already on the stack we just restore | |
| 957 // registers, pop all of our frame but the return address and jump to the deopt blob | |
| 958 restore_live_registers(sasm); | |
| 959 __ leave(); | |
| 960 __ jump(RuntimeAddress(deopt_blob->unpack_with_reexecution())); | |
| 961 | |
| 962 __ bind(cont); | |
| 963 restore_live_registers(sasm); | |
| 964 __ leave(); | |
| 965 __ ret(0); | |
| 966 | |
| 967 return oop_maps; | |
| 968 } | |
| 969 | |
| 970 | |
| 971 OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) { | |
| 972 | |
| 973 // for better readability | |
| 974 const bool must_gc_arguments = true; | |
| 975 const bool dont_gc_arguments = false; | |
| 976 | |
| 977 // default value; overwritten for some optimized stubs that are called from methods that do not use the fpu | |
| 978 bool save_fpu_registers = true; | |
| 979 | |
| 980 // stub code & info for the different stubs | |
| 981 OopMapSet* oop_maps = NULL; | |
| 982 switch (id) { | |
| 983 case forward_exception_id: | |
| 984 { | |
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985 oop_maps = generate_handle_exception(id, sasm); |
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986 __ leave(); |
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987 __ ret(0); |
| 0 | 988 } |
| 989 break; | |
| 990 | |
| 991 case new_instance_id: | |
| 992 case fast_new_instance_id: | |
| 993 case fast_new_instance_init_check_id: | |
| 994 { | |
| 995 Register klass = rdx; // Incoming | |
| 996 Register obj = rax; // Result | |
| 997 | |
| 998 if (id == new_instance_id) { | |
| 999 __ set_info("new_instance", dont_gc_arguments); | |
| 1000 } else if (id == fast_new_instance_id) { | |
| 1001 __ set_info("fast new_instance", dont_gc_arguments); | |
| 1002 } else { | |
| 1003 assert(id == fast_new_instance_init_check_id, "bad StubID"); | |
| 1004 __ set_info("fast new_instance init check", dont_gc_arguments); | |
| 1005 } | |
| 1006 | |
| 1007 if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) && | |
| 1008 UseTLAB && FastTLABRefill) { | |
| 1009 Label slow_path; | |
| 1010 Register obj_size = rcx; | |
| 1011 Register t1 = rbx; | |
| 1012 Register t2 = rsi; | |
| 1013 assert_different_registers(klass, obj, obj_size, t1, t2); | |
| 1014 | |
| 304 | 1015 __ push(rdi); |
| 1016 __ push(rbx); | |
| 0 | 1017 |
| 1018 if (id == fast_new_instance_init_check_id) { | |
| 1019 // make sure the klass is initialized | |
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1020 __ cmpb(Address(klass, InstanceKlass::init_state_offset()), InstanceKlass::fully_initialized); |
| 0 | 1021 __ jcc(Assembler::notEqual, slow_path); |
| 1022 } | |
| 1023 | |
| 1024 #ifdef ASSERT | |
| 1025 // assert object can be fast path allocated | |
| 1026 { | |
| 1027 Label ok, not_ok; | |
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1028 __ movl(obj_size, Address(klass, Klass::layout_helper_offset())); |
| 0 | 1029 __ cmpl(obj_size, 0); // make sure it's an instance (LH > 0) |
| 1030 __ jcc(Assembler::lessEqual, not_ok); | |
| 1031 __ testl(obj_size, Klass::_lh_instance_slow_path_bit); | |
| 1032 __ jcc(Assembler::zero, ok); | |
| 1033 __ bind(not_ok); | |
| 1034 __ stop("assert(can be fast path allocated)"); | |
| 1035 __ should_not_reach_here(); | |
| 1036 __ bind(ok); | |
| 1037 } | |
| 1038 #endif // ASSERT | |
| 1039 | |
| 1040 // if we got here then the TLAB allocation failed, so try | |
| 1041 // refilling the TLAB or allocating directly from eden. | |
| 1042 Label retry_tlab, try_eden; | |
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1043 const Register thread = |
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1044 __ tlab_refill(retry_tlab, try_eden, slow_path); // does not destroy rdx (klass), returns rdi |
| 0 | 1045 |
| 1046 __ bind(retry_tlab); | |
| 1047 | |
| 304 | 1048 // get the instance size (size is postive so movl is fine for 64bit) |
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1049 __ movl(obj_size, Address(klass, Klass::layout_helper_offset())); |
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1050 |
| 0 | 1051 __ tlab_allocate(obj, obj_size, 0, t1, t2, slow_path); |
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1052 |
| 0 | 1053 __ initialize_object(obj, klass, obj_size, 0, t1, t2); |
| 1054 __ verify_oop(obj); | |
| 304 | 1055 __ pop(rbx); |
| 1056 __ pop(rdi); | |
| 0 | 1057 __ ret(0); |
| 1058 | |
| 1059 __ bind(try_eden); | |
| 304 | 1060 // get the instance size (size is postive so movl is fine for 64bit) |
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1061 __ movl(obj_size, Address(klass, Klass::layout_helper_offset())); |
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1062 |
| 0 | 1063 __ eden_allocate(obj, obj_size, 0, t1, slow_path); |
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1064 __ incr_allocated_bytes(thread, obj_size, 0); |
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1065 |
| 0 | 1066 __ initialize_object(obj, klass, obj_size, 0, t1, t2); |
| 1067 __ verify_oop(obj); | |
| 304 | 1068 __ pop(rbx); |
| 1069 __ pop(rdi); | |
| 0 | 1070 __ ret(0); |
| 1071 | |
| 1072 __ bind(slow_path); | |
| 304 | 1073 __ pop(rbx); |
| 1074 __ pop(rdi); | |
| 0 | 1075 } |
| 1076 | |
| 1077 __ enter(); | |
| 1078 OopMap* map = save_live_registers(sasm, 2); | |
| 1079 int call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_instance), klass); | |
| 1080 oop_maps = new OopMapSet(); | |
| 1081 oop_maps->add_gc_map(call_offset, map); | |
| 1082 restore_live_registers_except_rax(sasm); | |
| 1083 __ verify_oop(obj); | |
| 1084 __ leave(); | |
| 1085 __ ret(0); | |
| 1086 | |
| 1087 // rax,: new instance | |
| 1088 } | |
| 1089 | |
| 1090 break; | |
| 1091 | |
| 1092 case counter_overflow_id: | |
| 1093 { | |
| 1783 | 1094 Register bci = rax, method = rbx; |
| 0 | 1095 __ enter(); |
| 1783 | 1096 OopMap* map = save_live_registers(sasm, 3); |
| 0 | 1097 // Retrieve bci |
| 1098 __ movl(bci, Address(rbp, 2*BytesPerWord)); | |
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1099 // And a pointer to the Method* |
| 1783 | 1100 __ movptr(method, Address(rbp, 3*BytesPerWord)); |
| 1101 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, counter_overflow), bci, method); | |
| 0 | 1102 oop_maps = new OopMapSet(); |
| 1103 oop_maps->add_gc_map(call_offset, map); | |
| 1104 restore_live_registers(sasm); | |
| 1105 __ leave(); | |
| 1106 __ ret(0); | |
| 1107 } | |
| 1108 break; | |
| 1109 | |
| 1110 case new_type_array_id: | |
| 1111 case new_object_array_id: | |
| 1112 { | |
| 1113 Register length = rbx; // Incoming | |
| 1114 Register klass = rdx; // Incoming | |
| 1115 Register obj = rax; // Result | |
| 1116 | |
| 1117 if (id == new_type_array_id) { | |
| 1118 __ set_info("new_type_array", dont_gc_arguments); | |
| 1119 } else { | |
| 1120 __ set_info("new_object_array", dont_gc_arguments); | |
| 1121 } | |
| 1122 | |
| 1123 #ifdef ASSERT | |
| 1124 // assert object type is really an array of the proper kind | |
| 1125 { | |
| 1126 Label ok; | |
| 1127 Register t0 = obj; | |
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1128 __ movl(t0, Address(klass, Klass::layout_helper_offset())); |
| 0 | 1129 __ sarl(t0, Klass::_lh_array_tag_shift); |
| 1130 int tag = ((id == new_type_array_id) | |
| 1131 ? Klass::_lh_array_tag_type_value | |
| 1132 : Klass::_lh_array_tag_obj_value); | |
| 1133 __ cmpl(t0, tag); | |
| 1134 __ jcc(Assembler::equal, ok); | |
| 1135 __ stop("assert(is an array klass)"); | |
| 1136 __ should_not_reach_here(); | |
| 1137 __ bind(ok); | |
| 1138 } | |
| 1139 #endif // ASSERT | |
| 1140 | |
| 1141 if (UseTLAB && FastTLABRefill) { | |
| 1142 Register arr_size = rsi; | |
| 1143 Register t1 = rcx; // must be rcx for use as shift count | |
| 1144 Register t2 = rdi; | |
| 1145 Label slow_path; | |
| 1146 assert_different_registers(length, klass, obj, arr_size, t1, t2); | |
| 1147 | |
| 1148 // check that array length is small enough for fast path. | |
| 1149 __ cmpl(length, C1_MacroAssembler::max_array_allocation_length); | |
| 1150 __ jcc(Assembler::above, slow_path); | |
| 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); // preserves rbx & rdx, returns rdi |
| 0 | 1157 |
| 1158 __ bind(retry_tlab); | |
| 1159 | |
| 1160 // get the allocation size: round_up(hdr + length << (layout_helper & 0x1F)) | |
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1161 // since size is positive movl does right thing on 64bit |
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1162 __ movl(t1, Address(klass, Klass::layout_helper_offset())); |
| 304 | 1163 // since size is postive movl does right thing on 64bit |
| 0 | 1164 __ movl(arr_size, length); |
| 1165 assert(t1 == rcx, "fixed register usage"); | |
| 304 | 1166 __ shlptr(arr_size /* by t1=rcx, mod 32 */); |
| 1167 __ shrptr(t1, Klass::_lh_header_size_shift); | |
| 1168 __ andptr(t1, Klass::_lh_header_size_mask); | |
| 1169 __ addptr(arr_size, t1); | |
| 1170 __ addptr(arr_size, MinObjAlignmentInBytesMask); // align up | |
| 1171 __ andptr(arr_size, ~MinObjAlignmentInBytesMask); | |
| 0 | 1172 |
| 1173 __ tlab_allocate(obj, arr_size, 0, t1, t2, slow_path); // preserves arr_size | |
| 1174 | |
| 1175 __ initialize_header(obj, klass, length, t1, t2); | |
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1176 __ movb(t1, Address(klass, in_bytes(Klass::layout_helper_offset()) + (Klass::_lh_header_size_shift / BitsPerByte))); |
| 0 | 1177 assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); |
| 1178 assert(Klass::_lh_header_size_mask <= 0xFF, "bytewise"); | |
| 304 | 1179 __ andptr(t1, Klass::_lh_header_size_mask); |
| 1180 __ subptr(arr_size, t1); // body length | |
| 1181 __ addptr(t1, obj); // body start | |
| 0 | 1182 __ initialize_body(t1, arr_size, 0, t2); |
| 1183 __ verify_oop(obj); | |
| 1184 __ ret(0); | |
| 1185 | |
| 1186 __ bind(try_eden); | |
| 1187 // get the allocation size: round_up(hdr + length << (layout_helper & 0x1F)) | |
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1188 // since size is positive movl does right thing on 64bit |
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1189 __ movl(t1, Address(klass, Klass::layout_helper_offset())); |
| 304 | 1190 // since size is postive movl does right thing on 64bit |
| 0 | 1191 __ movl(arr_size, length); |
| 1192 assert(t1 == rcx, "fixed register usage"); | |
| 304 | 1193 __ shlptr(arr_size /* by t1=rcx, mod 32 */); |
| 1194 __ shrptr(t1, Klass::_lh_header_size_shift); | |
| 1195 __ andptr(t1, Klass::_lh_header_size_mask); | |
| 1196 __ addptr(arr_size, t1); | |
| 1197 __ addptr(arr_size, MinObjAlignmentInBytesMask); // align up | |
| 1198 __ andptr(arr_size, ~MinObjAlignmentInBytesMask); | |
| 0 | 1199 |
| 1200 __ eden_allocate(obj, arr_size, 0, t1, slow_path); // preserves arr_size | |
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1201 __ incr_allocated_bytes(thread, arr_size, 0); |
| 0 | 1202 |
| 1203 __ initialize_header(obj, klass, length, t1, t2); | |
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1204 __ movb(t1, Address(klass, in_bytes(Klass::layout_helper_offset()) + (Klass::_lh_header_size_shift / BitsPerByte))); |
| 0 | 1205 assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); |
| 1206 assert(Klass::_lh_header_size_mask <= 0xFF, "bytewise"); | |
| 304 | 1207 __ andptr(t1, Klass::_lh_header_size_mask); |
| 1208 __ subptr(arr_size, t1); // body length | |
| 1209 __ addptr(t1, obj); // body start | |
| 0 | 1210 __ initialize_body(t1, arr_size, 0, t2); |
| 1211 __ verify_oop(obj); | |
| 1212 __ ret(0); | |
| 1213 | |
| 1214 __ bind(slow_path); | |
| 1215 } | |
| 1216 | |
| 1217 __ enter(); | |
| 1218 OopMap* map = save_live_registers(sasm, 3); | |
| 1219 int call_offset; | |
| 1220 if (id == new_type_array_id) { | |
| 1221 call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_type_array), klass, length); | |
| 1222 } else { | |
| 1223 call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_object_array), klass, length); | |
| 1224 } | |
| 1225 | |
| 1226 oop_maps = new OopMapSet(); | |
| 1227 oop_maps->add_gc_map(call_offset, map); | |
| 1228 restore_live_registers_except_rax(sasm); | |
| 1229 | |
| 1230 __ verify_oop(obj); | |
| 1231 __ leave(); | |
| 1232 __ ret(0); | |
| 1233 | |
| 1234 // rax,: new array | |
| 1235 } | |
| 1236 break; | |
| 1237 | |
| 1238 case new_multi_array_id: | |
| 1239 { StubFrame f(sasm, "new_multi_array", dont_gc_arguments); | |
| 1240 // rax,: klass | |
| 1241 // rbx,: rank | |
| 1242 // rcx: address of 1st dimension | |
| 1243 OopMap* map = save_live_registers(sasm, 4); | |
| 1244 int call_offset = __ call_RT(rax, noreg, CAST_FROM_FN_PTR(address, new_multi_array), rax, rbx, rcx); | |
| 1245 | |
| 1246 oop_maps = new OopMapSet(); | |
| 1247 oop_maps->add_gc_map(call_offset, map); | |
| 1248 restore_live_registers_except_rax(sasm); | |
| 1249 | |
| 1250 // rax,: new multi array | |
| 1251 __ verify_oop(rax); | |
| 1252 } | |
| 1253 break; | |
| 1254 | |
| 1255 case register_finalizer_id: | |
| 1256 { | |
| 1257 __ set_info("register_finalizer", dont_gc_arguments); | |
| 1258 | |
| 304 | 1259 // This is called via call_runtime so the arguments |
| 1260 // will be place in C abi locations | |
| 1261 | |
| 1262 #ifdef _LP64 | |
| 1263 __ verify_oop(c_rarg0); | |
| 1264 __ mov(rax, c_rarg0); | |
| 1265 #else | |
| 0 | 1266 // The object is passed on the stack and we haven't pushed a |
| 1267 // frame yet so it's one work away from top of stack. | |
| 304 | 1268 __ movptr(rax, Address(rsp, 1 * BytesPerWord)); |
| 0 | 1269 __ verify_oop(rax); |
| 304 | 1270 #endif // _LP64 |
| 0 | 1271 |
| 1272 // load the klass and check the has finalizer flag | |
| 1273 Label register_finalizer; | |
| 1274 Register t = rsi; | |
| 2002 | 1275 __ load_klass(t, rax); |
|
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1276 __ movl(t, Address(t, Klass::access_flags_offset())); |
| 0 | 1277 __ testl(t, JVM_ACC_HAS_FINALIZER); |
| 1278 __ jcc(Assembler::notZero, register_finalizer); | |
| 1279 __ ret(0); | |
| 1280 | |
| 1281 __ bind(register_finalizer); | |
| 1282 __ enter(); | |
| 1283 OopMap* oop_map = save_live_registers(sasm, 2 /*num_rt_args */); | |
|
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1284 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), rax); |
| 0 | 1285 oop_maps = new OopMapSet(); |
| 1286 oop_maps->add_gc_map(call_offset, oop_map); | |
| 1287 | |
| 1288 // Now restore all the live registers | |
| 1289 restore_live_registers(sasm); | |
| 1290 | |
| 1291 __ leave(); | |
| 1292 __ ret(0); | |
| 1293 } | |
| 1294 break; | |
| 1295 | |
| 1296 case throw_range_check_failed_id: | |
| 1297 { StubFrame f(sasm, "range_check_failed", dont_gc_arguments); | |
| 1298 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true); | |
| 1299 } | |
| 1300 break; | |
| 1301 | |
| 1302 case throw_index_exception_id: | |
| 1303 { StubFrame f(sasm, "index_range_check_failed", dont_gc_arguments); | |
| 1304 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true); | |
| 1305 } | |
| 1306 break; | |
| 1307 | |
| 1308 case throw_div0_exception_id: | |
| 1309 { StubFrame f(sasm, "throw_div0_exception", dont_gc_arguments); | |
| 1310 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false); | |
| 1311 } | |
| 1312 break; | |
| 1313 | |
| 1314 case throw_null_pointer_exception_id: | |
| 1315 { StubFrame f(sasm, "throw_null_pointer_exception", dont_gc_arguments); | |
| 1316 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false); | |
| 1317 } | |
| 1318 break; | |
| 1319 | |
| 1320 case handle_exception_nofpu_id: | |
| 1321 case handle_exception_id: | |
| 1322 { StubFrame f(sasm, "handle_exception", dont_gc_arguments); | |
|
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1323 oop_maps = generate_handle_exception(id, sasm); |
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1324 } |
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1325 break; |
|
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1326 |
|
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1327 case handle_exception_from_callee_id: |
|
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1328 { StubFrame f(sasm, "handle_exception_from_callee", dont_gc_arguments); |
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|
1329 oop_maps = generate_handle_exception(id, sasm); |
| 0 | 1330 } |
| 1331 break; | |
| 1332 | |
| 1333 case unwind_exception_id: | |
| 1334 { __ set_info("unwind_exception", dont_gc_arguments); | |
| 1335 // note: no stubframe since we are about to leave the current | |
| 1336 // activation and we are calling a leaf VM function only. | |
| 1337 generate_unwind_exception(sasm); | |
| 1338 } | |
| 1339 break; | |
| 1340 | |
| 1341 case throw_array_store_exception_id: | |
| 1342 { StubFrame f(sasm, "throw_array_store_exception", dont_gc_arguments); | |
| 1343 // tos + 0: link | |
| 1344 // + 1: return address | |
|
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1345 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true); |
| 0 | 1346 } |
| 1347 break; | |
| 1348 | |
| 1349 case throw_class_cast_exception_id: | |
| 1350 { StubFrame f(sasm, "throw_class_cast_exception", dont_gc_arguments); | |
| 1351 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true); | |
| 1352 } | |
| 1353 break; | |
| 1354 | |
| 1355 case throw_incompatible_class_change_error_id: | |
| 1356 { StubFrame f(sasm, "throw_incompatible_class_cast_exception", dont_gc_arguments); | |
| 1357 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false); | |
| 1358 } | |
| 1359 break; | |
| 1360 | |
| 1361 case slow_subtype_check_id: | |
| 1362 { | |
|
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1363 // Typical calling sequence: |
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1364 // __ push(klass_RInfo); // object klass or other subclass |
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1365 // __ push(sup_k_RInfo); // array element klass or other superclass |
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1366 // __ call(slow_subtype_check); |
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1367 // Note that the subclass is pushed first, and is therefore deepest. |
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1368 // Previous versions of this code reversed the names 'sub' and 'super'. |
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1369 // This was operationally harmless but made the code unreadable. |
| 0 | 1370 enum layout { |
| 304 | 1371 rax_off, SLOT2(raxH_off) |
| 1372 rcx_off, SLOT2(rcxH_off) | |
| 1373 rsi_off, SLOT2(rsiH_off) | |
| 1374 rdi_off, SLOT2(rdiH_off) | |
| 1375 // saved_rbp_off, SLOT2(saved_rbpH_off) | |
| 1376 return_off, SLOT2(returnH_off) | |
|
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1377 sup_k_off, SLOT2(sup_kH_off) |
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1378 klass_off, SLOT2(superH_off) |
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1379 framesize, |
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1380 result_off = klass_off // deepest argument is also the return value |
| 0 | 1381 }; |
| 1382 | |
| 1383 __ set_info("slow_subtype_check", dont_gc_arguments); | |
| 304 | 1384 __ push(rdi); |
| 1385 __ push(rsi); | |
| 1386 __ push(rcx); | |
| 1387 __ push(rax); | |
| 0 | 1388 |
| 304 | 1389 // This is called by pushing args and not with C abi |
|
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1390 __ movptr(rsi, Address(rsp, (klass_off) * VMRegImpl::stack_slot_size)); // subclass |
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1391 __ movptr(rax, Address(rsp, (sup_k_off) * VMRegImpl::stack_slot_size)); // superclass |
| 0 | 1392 |
| 1393 Label miss; | |
|
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1394 __ check_klass_subtype_slow_path(rsi, rax, rcx, rdi, NULL, &miss); |
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1395 |
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1396 // fallthrough on success: |
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1397 __ movptr(Address(rsp, (result_off) * VMRegImpl::stack_slot_size), 1); // result |
| 304 | 1398 __ pop(rax); |
| 1399 __ pop(rcx); | |
| 1400 __ pop(rsi); | |
| 1401 __ pop(rdi); | |
| 0 | 1402 __ ret(0); |
| 1403 | |
| 1404 __ bind(miss); | |
|
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1405 __ movptr(Address(rsp, (result_off) * VMRegImpl::stack_slot_size), NULL_WORD); // result |
| 304 | 1406 __ pop(rax); |
| 1407 __ pop(rcx); | |
| 1408 __ pop(rsi); | |
| 1409 __ pop(rdi); | |
| 0 | 1410 __ ret(0); |
| 1411 } | |
| 1412 break; | |
| 1413 | |
| 1414 case monitorenter_nofpu_id: | |
| 1415 save_fpu_registers = false; | |
| 1416 // fall through | |
| 1417 case monitorenter_id: | |
| 1418 { | |
| 1419 StubFrame f(sasm, "monitorenter", dont_gc_arguments); | |
| 1420 OopMap* map = save_live_registers(sasm, 3, save_fpu_registers); | |
| 1421 | |
| 304 | 1422 // Called with store_parameter and not C abi |
| 1423 | |
| 0 | 1424 f.load_argument(1, rax); // rax,: object |
| 1425 f.load_argument(0, rbx); // rbx,: lock address | |
| 1426 | |
| 1427 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), rax, rbx); | |
| 1428 | |
| 1429 oop_maps = new OopMapSet(); | |
| 1430 oop_maps->add_gc_map(call_offset, map); | |
| 1431 restore_live_registers(sasm, save_fpu_registers); | |
| 1432 } | |
| 1433 break; | |
| 1434 | |
| 1435 case monitorexit_nofpu_id: | |
| 1436 save_fpu_registers = false; | |
| 1437 // fall through | |
| 1438 case monitorexit_id: | |
| 1439 { | |
| 1440 StubFrame f(sasm, "monitorexit", dont_gc_arguments); | |
| 1441 OopMap* map = save_live_registers(sasm, 2, save_fpu_registers); | |
| 1442 | |
| 304 | 1443 // Called with store_parameter and not C abi |
| 1444 | |
| 0 | 1445 f.load_argument(0, rax); // rax,: lock address |
| 1446 | |
| 1447 // note: really a leaf routine but must setup last java sp | |
| 1448 // => use call_RT for now (speed can be improved by | |
| 1449 // doing last java sp setup manually) | |
| 1450 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), rax); | |
| 1451 | |
| 1452 oop_maps = new OopMapSet(); | |
| 1453 oop_maps->add_gc_map(call_offset, map); | |
| 1454 restore_live_registers(sasm, save_fpu_registers); | |
|
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1455 } |
|
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1456 break; |
| 0 | 1457 |
|
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1458 case deoptimize_id: |
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1459 { |
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1460 StubFrame f(sasm, "deoptimize", dont_gc_arguments); |
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1461 const int num_rt_args = 1; // thread |
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1462 OopMap* oop_map = save_live_registers(sasm, num_rt_args); |
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1463 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize)); |
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1464 oop_maps = new OopMapSet(); |
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1465 oop_maps->add_gc_map(call_offset, oop_map); |
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1466 restore_live_registers(sasm); |
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1467 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
|
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1468 assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
|
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1469 __ leave(); |
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1470 __ jump(RuntimeAddress(deopt_blob->unpack_with_reexecution())); |
| 0 | 1471 } |
| 1472 break; | |
| 1473 | |
| 1474 case access_field_patching_id: | |
| 1475 { StubFrame f(sasm, "access_field_patching", dont_gc_arguments); | |
| 1476 // we should set up register map | |
| 1477 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching)); | |
| 1478 } | |
| 1479 break; | |
| 1480 | |
| 1481 case load_klass_patching_id: | |
| 1482 { StubFrame f(sasm, "load_klass_patching", dont_gc_arguments); | |
| 1483 // we should set up register map | |
| 1484 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching)); | |
| 1485 } | |
| 1486 break; | |
| 1487 | |
|
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1488 case load_mirror_patching_id: |
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1489 { StubFrame f(sasm, "load_mirror_patching", dont_gc_arguments); |
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1490 // we should set up register map |
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1491 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching)); |
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1492 } |
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1493 break; |
|
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1494 |
|
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1495 case load_appendix_patching_id: |
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1496 { StubFrame f(sasm, "load_appendix_patching", dont_gc_arguments); |
|
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1497 // we should set up register map |
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1498 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_appendix_patching)); |
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1499 } |
|
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1500 break; |
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1501 |
| 0 | 1502 case dtrace_object_alloc_id: |
| 1503 { // rax,: object | |
| 1504 StubFrame f(sasm, "dtrace_object_alloc", dont_gc_arguments); | |
| 1505 // we can't gc here so skip the oopmap but make sure that all | |
| 1506 // the live registers get saved. | |
| 1507 save_live_registers(sasm, 1); | |
| 1508 | |
| 304 | 1509 __ NOT_LP64(push(rax)) LP64_ONLY(mov(c_rarg0, rax)); |
| 0 | 1510 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc))); |
| 304 | 1511 NOT_LP64(__ pop(rax)); |
| 0 | 1512 |
| 1513 restore_live_registers(sasm); | |
| 1514 } | |
| 1515 break; | |
| 1516 | |
| 1517 case fpu2long_stub_id: | |
| 1518 { | |
| 1519 // rax, and rdx are destroyed, but should be free since the result is returned there | |
| 1520 // preserve rsi,ecx | |
| 304 | 1521 __ push(rsi); |
| 1522 __ push(rcx); | |
| 1523 LP64_ONLY(__ push(rdx);) | |
| 0 | 1524 |
| 1525 // check for NaN | |
| 1526 Label return0, do_return, return_min_jlong, do_convert; | |
| 1527 | |
| 304 | 1528 Address value_high_word(rsp, wordSize + 4); |
| 1529 Address value_low_word(rsp, wordSize); | |
| 1530 Address result_high_word(rsp, 3*wordSize + 4); | |
| 1531 Address result_low_word(rsp, 3*wordSize); | |
| 0 | 1532 |
| 304 | 1533 __ subptr(rsp, 32); // more than enough on 32bit |
| 0 | 1534 __ fst_d(value_low_word); |
| 1535 __ movl(rax, value_high_word); | |
| 1536 __ andl(rax, 0x7ff00000); | |
| 1537 __ cmpl(rax, 0x7ff00000); | |
| 1538 __ jcc(Assembler::notEqual, do_convert); | |
| 1539 __ movl(rax, value_high_word); | |
| 1540 __ andl(rax, 0xfffff); | |
| 1541 __ orl(rax, value_low_word); | |
| 1542 __ jcc(Assembler::notZero, return0); | |
| 1543 | |
| 1544 __ bind(do_convert); | |
| 1545 __ fnstcw(Address(rsp, 0)); | |
| 304 | 1546 __ movzwl(rax, Address(rsp, 0)); |
| 0 | 1547 __ orl(rax, 0xc00); |
| 1548 __ movw(Address(rsp, 2), rax); | |
| 1549 __ fldcw(Address(rsp, 2)); | |
| 1550 __ fwait(); | |
| 1551 __ fistp_d(result_low_word); | |
| 1552 __ fldcw(Address(rsp, 0)); | |
| 1553 __ fwait(); | |
| 304 | 1554 // This gets the entire long in rax on 64bit |
| 1555 __ movptr(rax, result_low_word); | |
| 1556 // testing of high bits | |
| 0 | 1557 __ movl(rdx, result_high_word); |
| 304 | 1558 __ mov(rcx, rax); |
| 0 | 1559 // What the heck is the point of the next instruction??? |
| 1560 __ xorl(rcx, 0x0); | |
| 1561 __ movl(rsi, 0x80000000); | |
| 1562 __ xorl(rsi, rdx); | |
| 1563 __ orl(rcx, rsi); | |
| 1564 __ jcc(Assembler::notEqual, do_return); | |
| 1565 __ fldz(); | |
| 1566 __ fcomp_d(value_low_word); | |
| 1567 __ fnstsw_ax(); | |
| 304 | 1568 #ifdef _LP64 |
| 1569 __ testl(rax, 0x4100); // ZF & CF == 0 | |
| 1570 __ jcc(Assembler::equal, return_min_jlong); | |
| 1571 #else | |
| 0 | 1572 __ sahf(); |
| 1573 __ jcc(Assembler::above, return_min_jlong); | |
| 304 | 1574 #endif // _LP64 |
| 0 | 1575 // return max_jlong |
| 304 | 1576 #ifndef _LP64 |
| 0 | 1577 __ movl(rdx, 0x7fffffff); |
| 1578 __ movl(rax, 0xffffffff); | |
| 304 | 1579 #else |
| 1580 __ mov64(rax, CONST64(0x7fffffffffffffff)); | |
| 1581 #endif // _LP64 | |
| 0 | 1582 __ jmp(do_return); |
| 1583 | |
| 1584 __ bind(return_min_jlong); | |
| 304 | 1585 #ifndef _LP64 |
| 0 | 1586 __ movl(rdx, 0x80000000); |
| 1587 __ xorl(rax, rax); | |
| 304 | 1588 #else |
| 1589 __ mov64(rax, CONST64(0x8000000000000000)); | |
| 1590 #endif // _LP64 | |
| 0 | 1591 __ jmp(do_return); |
| 1592 | |
| 1593 __ bind(return0); | |
| 1594 __ fpop(); | |
| 304 | 1595 #ifndef _LP64 |
| 1596 __ xorptr(rdx,rdx); | |
| 1597 __ xorptr(rax,rax); | |
| 1598 #else | |
| 1599 __ xorptr(rax, rax); | |
| 1600 #endif // _LP64 | |
| 0 | 1601 |
| 1602 __ bind(do_return); | |
| 304 | 1603 __ addptr(rsp, 32); |
| 1604 LP64_ONLY(__ pop(rdx);) | |
| 1605 __ pop(rcx); | |
| 1606 __ pop(rsi); | |
| 0 | 1607 __ ret(0); |
| 1608 } | |
| 1609 break; | |
| 1610 | |
|
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1611 #if INCLUDE_ALL_GCS |
| 342 | 1612 case g1_pre_barrier_slow_id: |
| 1613 { | |
| 1614 StubFrame f(sasm, "g1_pre_barrier", dont_gc_arguments); | |
| 1615 // arg0 : previous value of memory | |
| 1616 | |
| 1617 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 1618 if (bs->kind() != BarrierSet::G1SATBCTLogging) { | |
| 362 | 1619 __ movptr(rax, (int)id); |
| 342 | 1620 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), rax); |
| 1621 __ should_not_reach_here(); | |
| 1622 break; | |
| 1623 } | |
| 362 | 1624 __ push(rax); |
| 1625 __ push(rdx); | |
| 342 | 1626 |
| 1627 const Register pre_val = rax; | |
| 362 | 1628 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread); |
| 342 | 1629 const Register tmp = rdx; |
| 1630 | |
| 362 | 1631 NOT_LP64(__ get_thread(thread);) |
| 342 | 1632 |
| 1633 Address in_progress(thread, in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1634 PtrQueue::byte_offset_of_active())); | |
| 1635 | |
| 1636 Address queue_index(thread, in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1637 PtrQueue::byte_offset_of_index())); | |
| 1638 Address buffer(thread, in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 1639 PtrQueue::byte_offset_of_buf())); | |
| 1640 | |
| 1641 | |
| 1642 Label done; | |
| 1643 Label runtime; | |
| 1644 | |
| 1645 // Can we store original value in the thread's buffer? | |
| 1646 | |
| 362 | 1647 #ifdef _LP64 |
| 1572 | 1648 __ movslq(tmp, queue_index); |
| 362 | 1649 __ cmpq(tmp, 0); |
| 1650 #else | |
| 342 | 1651 __ cmpl(queue_index, 0); |
| 362 | 1652 #endif |
| 342 | 1653 __ jcc(Assembler::equal, runtime); |
| 362 | 1654 #ifdef _LP64 |
| 1655 __ subq(tmp, wordSize); | |
| 1656 __ movl(queue_index, tmp); | |
| 1657 __ addq(tmp, buffer); | |
| 1658 #else | |
| 342 | 1659 __ subl(queue_index, wordSize); |
| 1660 __ movl(tmp, buffer); | |
| 1661 __ addl(tmp, queue_index); | |
| 362 | 1662 #endif |
| 1663 | |
| 342 | 1664 // prev_val (rax) |
| 1665 f.load_argument(0, pre_val); | |
| 362 | 1666 __ movptr(Address(tmp, 0), pre_val); |
| 342 | 1667 __ jmp(done); |
| 1668 | |
| 1669 __ bind(runtime); | |
| 1572 | 1670 __ push(rcx); |
| 1671 #ifdef _LP64 | |
| 1672 __ push(r8); | |
| 1673 __ push(r9); | |
| 1674 __ push(r10); | |
| 1675 __ push(r11); | |
| 1676 # ifndef _WIN64 | |
| 1677 __ push(rdi); | |
| 1678 __ push(rsi); | |
| 1679 # endif | |
| 1680 #endif | |
| 342 | 1681 // load the pre-value |
| 1682 f.load_argument(0, rcx); | |
| 1683 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_pre), rcx, thread); | |
| 1572 | 1684 #ifdef _LP64 |
| 1685 # ifndef _WIN64 | |
| 1686 __ pop(rsi); | |
| 1687 __ pop(rdi); | |
| 1688 # endif | |
| 1689 __ pop(r11); | |
| 1690 __ pop(r10); | |
| 1691 __ pop(r9); | |
| 1692 __ pop(r8); | |
| 1693 #endif | |
| 362 | 1694 __ pop(rcx); |
| 1572 | 1695 __ bind(done); |
| 342 | 1696 |
| 362 | 1697 __ pop(rdx); |
| 1698 __ pop(rax); | |
| 342 | 1699 } |
| 1700 break; | |
| 1701 | |
| 1702 case g1_post_barrier_slow_id: | |
| 1703 { | |
| 1704 StubFrame f(sasm, "g1_post_barrier", dont_gc_arguments); | |
| 1705 | |
| 1706 | |
| 1707 // arg0: store_address | |
| 1708 Address store_addr(rbp, 2*BytesPerWord); | |
| 1709 | |
| 1710 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 1711 CardTableModRefBS* ct = (CardTableModRefBS*)bs; | |
|
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1712 assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code"); |
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1713 |
| 342 | 1714 Label done; |
| 1715 Label runtime; | |
| 1716 | |
|
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1717 // At this point we know new_value is non-NULL and the new_value crosses regions. |
| 342 | 1718 // Must check to see if card is already dirty |
| 1719 | |
| 362 | 1720 const Register thread = NOT_LP64(rax) LP64_ONLY(r15_thread); |
| 342 | 1721 |
| 1722 Address queue_index(thread, in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 1723 PtrQueue::byte_offset_of_index())); | |
| 1724 Address buffer(thread, in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 1725 PtrQueue::byte_offset_of_buf())); | |
| 1726 | |
| 362 | 1727 __ push(rax); |
| 1572 | 1728 __ push(rcx); |
| 342 | 1729 |
|
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1730 const Register cardtable = rax; |
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1731 const Register card_addr = rcx; |
| 342 | 1732 |
| 362 | 1733 f.load_argument(0, card_addr); |
|
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1734 __ shrptr(card_addr, CardTableModRefBS::card_shift); |
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1735 // Do not use ExternalAddress to load 'byte_map_base', since 'byte_map_base' is NOT |
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1736 // a valid address and therefore is not properly handled by the relocation code. |
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1737 __ movptr(cardtable, (intptr_t)ct->byte_map_base); |
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1738 __ addptr(card_addr, cardtable); |
| 362 | 1739 |
|
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1740 NOT_LP64(__ get_thread(thread);) |
| 362 | 1741 |
|
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1742 __ cmpb(Address(card_addr, 0), (int)G1SATBCardTableModRefBS::g1_young_card_val()); |
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1743 __ jcc(Assembler::equal, done); |
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1744 |
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1745 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); |
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1746 __ cmpb(Address(card_addr, 0), (int)CardTableModRefBS::dirty_card_val()); |
| 342 | 1747 __ jcc(Assembler::equal, done); |
| 1748 | |
| 1749 // storing region crossing non-NULL, card is clean. | |
| 1750 // dirty card and log. | |
| 1751 | |
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1752 __ movb(Address(card_addr, 0), (int)CardTableModRefBS::dirty_card_val()); |
| 342 | 1753 |
| 1754 __ cmpl(queue_index, 0); | |
| 1755 __ jcc(Assembler::equal, runtime); | |
| 1756 __ subl(queue_index, wordSize); | |
| 1757 | |
| 1758 const Register buffer_addr = rbx; | |
| 362 | 1759 __ push(rbx); |
| 1760 | |
| 1761 __ movptr(buffer_addr, buffer); | |
| 342 | 1762 |
| 362 | 1763 #ifdef _LP64 |
| 1764 __ movslq(rscratch1, queue_index); | |
| 1765 __ addptr(buffer_addr, rscratch1); | |
| 1766 #else | |
| 1767 __ addptr(buffer_addr, queue_index); | |
| 1768 #endif | |
| 1769 __ movptr(Address(buffer_addr, 0), card_addr); | |
| 1770 | |
| 1771 __ pop(rbx); | |
| 342 | 1772 __ jmp(done); |
| 1773 | |
| 1774 __ bind(runtime); | |
| 1572 | 1775 __ push(rdx); |
| 1776 #ifdef _LP64 | |
| 1777 __ push(r8); | |
| 1778 __ push(r9); | |
| 1779 __ push(r10); | |
| 1780 __ push(r11); | |
| 1781 # ifndef _WIN64 | |
| 1782 __ push(rdi); | |
| 1783 __ push(rsi); | |
| 1784 # endif | |
| 1785 #endif | |
| 342 | 1786 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_post), card_addr, thread); |
| 1572 | 1787 #ifdef _LP64 |
| 1788 # ifndef _WIN64 | |
| 1789 __ pop(rsi); | |
| 1790 __ pop(rdi); | |
| 1791 # endif | |
| 1792 __ pop(r11); | |
| 1793 __ pop(r10); | |
| 1794 __ pop(r9); | |
| 1795 __ pop(r8); | |
| 1796 #endif | |
| 1797 __ pop(rdx); | |
| 1798 __ bind(done); | |
| 342 | 1799 |
| 1572 | 1800 __ pop(rcx); |
| 362 | 1801 __ pop(rax); |
| 342 | 1802 |
| 1803 } | |
| 1804 break; | |
|
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1805 #endif // INCLUDE_ALL_GCS |
| 342 | 1806 |
| 8860 | 1807 case predicate_failed_trap_id: |
| 1808 { | |
| 1809 StubFrame f(sasm, "predicate_failed_trap", dont_gc_arguments); | |
| 1810 | |
| 1811 OopMap* map = save_live_registers(sasm, 1); | |
| 1812 | |
| 1813 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap)); | |
| 1814 oop_maps = new OopMapSet(); | |
| 1815 oop_maps->add_gc_map(call_offset, map); | |
| 1816 restore_live_registers(sasm); | |
| 1817 __ leave(); | |
| 1818 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); | |
| 1819 assert(deopt_blob != NULL, "deoptimization blob must have been created"); | |
| 1820 | |
| 1821 __ jump(RuntimeAddress(deopt_blob->unpack_with_reexecution())); | |
| 1822 } | |
| 1823 break; | |
| 1824 | |
| 0 | 1825 default: |
| 1826 { StubFrame f(sasm, "unimplemented entry", dont_gc_arguments); | |
| 304 | 1827 __ movptr(rax, (int)id); |
| 0 | 1828 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), rax); |
| 1829 __ should_not_reach_here(); | |
| 1830 } | |
| 1831 break; | |
| 1832 } | |
| 1833 return oop_maps; | |
| 1834 } | |
| 1835 | |
| 1836 #undef __ | |
|
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1837 |
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1838 const char *Runtime1::pd_name_for_address(address entry) { |
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1839 return "<unknown function>"; |
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1840 } |