Mercurial > hg > truffle
annotate src/cpu/sparc/vm/c1_Runtime1_sparc.cpp @ 12835:69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
Summary: Add a StoreLoad barrier in the G1 post-barrier to fix a race with concurrent refinement. Also-reviewed-by: martin.doerr@sap.com
Reviewed-by: iveresov, tschatzl, brutisso, roland, kvn
| author | mgerdin |
|---|---|
| date | Tue, 08 Oct 2013 17:35:51 +0200 |
| parents | f98f5d48f511 |
| children | f50418dfb1b7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "c1/c1_Defs.hpp" | |
| 27 #include "c1/c1_MacroAssembler.hpp" | |
| 28 #include "c1/c1_Runtime1.hpp" | |
| 29 #include "interpreter/interpreter.hpp" | |
| 30 #include "nativeInst_sparc.hpp" | |
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31 #include "oops/compiledICHolder.hpp" |
| 1972 | 32 #include "oops/oop.inline.hpp" |
| 33 #include "prims/jvmtiExport.hpp" | |
| 34 #include "register_sparc.hpp" | |
| 35 #include "runtime/sharedRuntime.hpp" | |
| 36 #include "runtime/signature.hpp" | |
| 37 #include "runtime/vframeArray.hpp" | |
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38 #include "utilities/macros.hpp" |
| 1972 | 39 #include "vmreg_sparc.inline.hpp" |
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40 #if INCLUDE_ALL_GCS |
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41 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
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42 #endif |
| 0 | 43 |
| 44 // Implementation of StubAssembler | |
| 45 | |
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46 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry_point, int number_of_arguments) { |
| 0 | 47 // for sparc changing the number of arguments doesn't change |
| 48 // anything about the frame size so we'll always lie and claim that | |
| 49 // we are only passing 1 argument. | |
| 50 set_num_rt_args(1); | |
| 51 | |
| 52 assert_not_delayed(); | |
| 53 // bang stack before going to runtime | |
| 54 set(-os::vm_page_size() + STACK_BIAS, G3_scratch); | |
| 55 st(G0, SP, G3_scratch); | |
| 56 | |
| 57 // debugging support | |
| 58 assert(number_of_arguments >= 0 , "cannot have negative number of arguments"); | |
| 59 | |
| 60 set_last_Java_frame(SP, noreg); | |
| 61 if (VerifyThread) mov(G2_thread, O0); // about to be smashed; pass early | |
| 62 save_thread(L7_thread_cache); | |
| 63 // do the call | |
| 64 call(entry_point, relocInfo::runtime_call_type); | |
| 65 if (!VerifyThread) { | |
| 66 delayed()->mov(G2_thread, O0); // pass thread as first argument | |
| 67 } else { | |
| 68 delayed()->nop(); // (thread already passed) | |
| 69 } | |
| 70 int call_offset = offset(); // offset of return address | |
| 71 restore_thread(L7_thread_cache); | |
| 72 reset_last_Java_frame(); | |
| 73 | |
| 74 // check for pending exceptions | |
| 75 { Label L; | |
| 727 | 76 Address exception_addr(G2_thread, Thread::pending_exception_offset()); |
| 0 | 77 ld_ptr(exception_addr, Gtemp); |
| 3839 | 78 br_null_short(Gtemp, pt, L); |
| 727 | 79 Address vm_result_addr(G2_thread, JavaThread::vm_result_offset()); |
| 0 | 80 st_ptr(G0, vm_result_addr); |
| 727 | 81 Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset()); |
| 0 | 82 st_ptr(G0, vm_result_addr_2); |
| 83 | |
| 84 if (frame_size() == no_frame_size) { | |
| 85 // we use O7 linkage so that forward_exception_entry has the issuing PC | |
| 86 call(StubRoutines::forward_exception_entry(), relocInfo::runtime_call_type); | |
| 87 delayed()->restore(); | |
| 88 } else if (_stub_id == Runtime1::forward_exception_id) { | |
| 89 should_not_reach_here(); | |
| 90 } else { | |
| 727 | 91 AddressLiteral exc(Runtime1::entry_for(Runtime1::forward_exception_id)); |
| 92 jump_to(exc, G4); | |
| 0 | 93 delayed()->nop(); |
| 94 } | |
| 95 bind(L); | |
| 96 } | |
| 97 | |
| 98 // get oop result if there is one and reset the value in the thread | |
| 99 if (oop_result1->is_valid()) { // get oop result if there is one and reset it in the thread | |
| 100 get_vm_result (oop_result1); | |
| 101 } else { | |
| 102 // be a little paranoid and clear the result | |
| 727 | 103 Address vm_result_addr(G2_thread, JavaThread::vm_result_offset()); |
| 0 | 104 st_ptr(G0, vm_result_addr); |
| 105 } | |
| 106 | |
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107 // get second result if there is one and reset the value in the thread |
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108 if (metadata_result->is_valid()) { |
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109 get_vm_result_2 (metadata_result); |
| 0 | 110 } else { |
| 111 // be a little paranoid and clear the result | |
| 727 | 112 Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset()); |
| 0 | 113 st_ptr(G0, vm_result_addr_2); |
| 114 } | |
| 115 | |
| 116 return call_offset; | |
| 117 } | |
| 118 | |
| 119 | |
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120 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1) { |
| 0 | 121 // O0 is reserved for the thread |
| 122 mov(arg1, O1); | |
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123 return call_RT(oop_result1, metadata_result, entry, 1); |
| 0 | 124 } |
| 125 | |
| 126 | |
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127 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2) { |
| 0 | 128 // O0 is reserved for the thread |
| 129 mov(arg1, O1); | |
| 130 mov(arg2, O2); assert(arg2 != O1, "smashed argument"); | |
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131 return call_RT(oop_result1, metadata_result, entry, 2); |
| 0 | 132 } |
| 133 | |
| 134 | |
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135 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3) { |
| 0 | 136 // O0 is reserved for the thread |
| 137 mov(arg1, O1); | |
| 138 mov(arg2, O2); assert(arg2 != O1, "smashed argument"); | |
| 139 mov(arg3, O3); assert(arg3 != O1 && arg3 != O2, "smashed argument"); | |
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140 return call_RT(oop_result1, metadata_result, entry, 3); |
| 0 | 141 } |
| 142 | |
| 143 | |
| 144 // Implementation of Runtime1 | |
| 145 | |
| 146 #define __ sasm-> | |
| 147 | |
| 148 static int cpu_reg_save_offsets[FrameMap::nof_cpu_regs]; | |
| 149 static int fpu_reg_save_offsets[FrameMap::nof_fpu_regs]; | |
| 150 static int reg_save_size_in_words; | |
| 151 static int frame_size_in_bytes = -1; | |
| 152 | |
| 153 static OopMap* generate_oop_map(StubAssembler* sasm, bool save_fpu_registers) { | |
| 154 assert(frame_size_in_bytes == __ total_frame_size_in_bytes(reg_save_size_in_words), | |
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155 "mismatch in calculation"); |
| 0 | 156 sasm->set_frame_size(frame_size_in_bytes / BytesPerWord); |
| 157 int frame_size_in_slots = frame_size_in_bytes / sizeof(jint); | |
| 158 OopMap* oop_map = new OopMap(frame_size_in_slots, 0); | |
| 159 | |
| 160 int i; | |
| 161 for (i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 162 Register r = as_Register(i); | |
| 163 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 164 int sp_offset = cpu_reg_save_offsets[i]; | |
| 165 oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset), | |
| 166 r->as_VMReg()); | |
| 167 } | |
| 168 } | |
| 169 | |
| 170 if (save_fpu_registers) { | |
| 171 for (i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 172 FloatRegister r = as_FloatRegister(i); | |
| 173 int sp_offset = fpu_reg_save_offsets[i]; | |
| 174 oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset), | |
| 175 r->as_VMReg()); | |
| 176 } | |
| 177 } | |
| 178 return oop_map; | |
| 179 } | |
| 180 | |
| 181 static OopMap* save_live_registers(StubAssembler* sasm, bool save_fpu_registers = true) { | |
| 182 assert(frame_size_in_bytes == __ total_frame_size_in_bytes(reg_save_size_in_words), | |
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183 "mismatch in calculation"); |
| 0 | 184 __ save_frame_c1(frame_size_in_bytes); |
| 185 | |
| 186 // Record volatile registers as callee-save values in an OopMap so their save locations will be | |
| 187 // propagated to the caller frame's RegisterMap during StackFrameStream construction (needed for | |
| 188 // deoptimization; see compiledVFrame::create_stack_value). The caller's I, L and O registers | |
| 189 // are saved in register windows - I's and L's in the caller's frame and O's in the stub frame | |
| 190 // (as the stub's I's) when the runtime routine called by the stub creates its frame. | |
| 191 // OopMap frame sizes are in c2 stack slot sizes (sizeof(jint)) | |
| 192 | |
| 193 int i; | |
| 194 for (i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 195 Register r = as_Register(i); | |
| 196 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 197 int sp_offset = cpu_reg_save_offsets[i]; | |
| 198 __ st_ptr(r, SP, (sp_offset * BytesPerWord) + STACK_BIAS); | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 if (save_fpu_registers) { | |
| 203 for (i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 204 FloatRegister r = as_FloatRegister(i); | |
| 205 int sp_offset = fpu_reg_save_offsets[i]; | |
| 206 __ stf(FloatRegisterImpl::S, r, SP, (sp_offset * BytesPerWord) + STACK_BIAS); | |
| 207 } | |
| 208 } | |
| 209 | |
| 210 return generate_oop_map(sasm, save_fpu_registers); | |
| 211 } | |
| 212 | |
| 213 static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true) { | |
| 214 for (int i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 215 Register r = as_Register(i); | |
| 216 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 217 __ ld_ptr(SP, (cpu_reg_save_offsets[i] * BytesPerWord) + STACK_BIAS, r); | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 if (restore_fpu_registers) { | |
| 222 for (int i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 223 FloatRegister r = as_FloatRegister(i); | |
| 224 __ ldf(FloatRegisterImpl::S, SP, (fpu_reg_save_offsets[i] * BytesPerWord) + STACK_BIAS, r); | |
| 225 } | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 | |
| 230 void Runtime1::initialize_pd() { | |
| 231 // compute word offsets from SP at which live (non-windowed) registers are captured by stub routines | |
| 232 // | |
| 233 // A stub routine will have a frame that is at least large enough to hold | |
| 234 // a register window save area (obviously) and the volatile g registers | |
| 235 // and floating registers. A user of save_live_registers can have a frame | |
| 236 // that has more scratch area in it (although typically they will use L-regs). | |
| 237 // in that case the frame will look like this (stack growing down) | |
| 238 // | |
| 239 // FP -> | | | |
| 240 // | scratch mem | | |
| 241 // | " " | | |
| 242 // -------------- | |
| 243 // | float regs | | |
| 244 // | " " | | |
| 245 // --------------- | |
| 246 // | G regs | | |
| 247 // | " " | | |
| 248 // --------------- | |
| 249 // | abi reg. | | |
| 250 // | window save | | |
| 251 // | area | | |
| 252 // SP -> --------------- | |
| 253 // | |
| 254 int i; | |
| 255 int sp_offset = round_to(frame::register_save_words, 2); // start doubleword aligned | |
| 256 | |
| 257 // only G int registers are saved explicitly; others are found in register windows | |
| 258 for (i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 259 Register r = as_Register(i); | |
| 260 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 261 cpu_reg_save_offsets[i] = sp_offset; | |
| 262 sp_offset++; | |
| 263 } | |
| 264 } | |
| 265 | |
| 266 // all float registers are saved explicitly | |
| 267 assert(FrameMap::nof_fpu_regs == 32, "double registers not handled here"); | |
| 268 for (i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 269 fpu_reg_save_offsets[i] = sp_offset; | |
| 270 sp_offset++; | |
| 271 } | |
| 272 reg_save_size_in_words = sp_offset - frame::memory_parameter_word_sp_offset; | |
| 273 // this should match assembler::total_frame_size_in_bytes, which | |
| 274 // isn't callable from this context. It's checked by an assert when | |
| 275 // it's used though. | |
| 276 frame_size_in_bytes = align_size_up(sp_offset * wordSize, 8); | |
| 277 } | |
| 278 | |
| 279 | |
| 280 OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) { | |
| 281 // make a frame and preserve the caller's caller-save registers | |
| 282 OopMap* oop_map = save_live_registers(sasm); | |
| 283 int call_offset; | |
| 284 if (!has_argument) { | |
| 285 call_offset = __ call_RT(noreg, noreg, target); | |
| 286 } else { | |
| 287 call_offset = __ call_RT(noreg, noreg, target, G4); | |
| 288 } | |
| 289 OopMapSet* oop_maps = new OopMapSet(); | |
| 290 oop_maps->add_gc_map(call_offset, oop_map); | |
| 291 | |
| 292 __ should_not_reach_here(); | |
| 293 return oop_maps; | |
| 294 } | |
| 295 | |
| 296 | |
| 297 OopMapSet* Runtime1::generate_stub_call(StubAssembler* sasm, Register result, address target, | |
| 298 Register arg1, Register arg2, Register arg3) { | |
| 299 // make a frame and preserve the caller's caller-save registers | |
| 300 OopMap* oop_map = save_live_registers(sasm); | |
| 301 | |
| 302 int call_offset; | |
| 303 if (arg1 == noreg) { | |
| 304 call_offset = __ call_RT(result, noreg, target); | |
| 305 } else if (arg2 == noreg) { | |
| 306 call_offset = __ call_RT(result, noreg, target, arg1); | |
| 307 } else if (arg3 == noreg) { | |
| 308 call_offset = __ call_RT(result, noreg, target, arg1, arg2); | |
| 309 } else { | |
| 310 call_offset = __ call_RT(result, noreg, target, arg1, arg2, arg3); | |
| 311 } | |
| 312 OopMapSet* oop_maps = NULL; | |
| 313 | |
| 314 oop_maps = new OopMapSet(); | |
| 315 oop_maps->add_gc_map(call_offset, oop_map); | |
| 316 restore_live_registers(sasm); | |
| 317 | |
| 318 __ ret(); | |
| 319 __ delayed()->restore(); | |
| 320 | |
| 321 return oop_maps; | |
| 322 } | |
| 323 | |
| 324 | |
| 325 OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) { | |
| 326 // make a frame and preserve the caller's caller-save registers | |
| 327 OopMap* oop_map = save_live_registers(sasm); | |
| 328 | |
| 329 // call the runtime patching routine, returns non-zero if nmethod got deopted. | |
| 330 int call_offset = __ call_RT(noreg, noreg, target); | |
| 331 OopMapSet* oop_maps = new OopMapSet(); | |
| 332 oop_maps->add_gc_map(call_offset, oop_map); | |
| 333 | |
| 334 // re-execute the patched instruction or, if the nmethod was deoptmized, return to the | |
| 335 // deoptimization handler entry that will cause re-execution of the current bytecode | |
| 336 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); | |
| 337 assert(deopt_blob != NULL, "deoptimization blob must have been created"); | |
| 338 | |
| 339 Label no_deopt; | |
| 3839 | 340 __ br_null_short(O0, Assembler::pt, no_deopt); |
| 0 | 341 |
| 342 // return to the deoptimization handler entry for unpacking and rexecute | |
| 343 // if we simply returned the we'd deopt as if any call we patched had just | |
| 344 // returned. | |
| 345 | |
| 346 restore_live_registers(sasm); | |
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347 |
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348 AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
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349 __ jump_to(dest, O0); |
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350 __ delayed()->restore(); |
| 0 | 351 |
| 352 __ bind(no_deopt); | |
| 353 restore_live_registers(sasm); | |
| 354 __ ret(); | |
| 355 __ delayed()->restore(); | |
| 356 | |
| 357 return oop_maps; | |
| 358 } | |
| 359 | |
| 360 OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) { | |
| 361 | |
| 362 OopMapSet* oop_maps = NULL; | |
| 363 // for better readability | |
| 364 const bool must_gc_arguments = true; | |
| 365 const bool dont_gc_arguments = false; | |
| 366 | |
| 367 // stub code & info for the different stubs | |
| 368 switch (id) { | |
| 369 case forward_exception_id: | |
| 370 { | |
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371 oop_maps = generate_handle_exception(id, sasm); |
| 0 | 372 } |
| 373 break; | |
| 374 | |
| 375 case new_instance_id: | |
| 376 case fast_new_instance_id: | |
| 377 case fast_new_instance_init_check_id: | |
| 378 { | |
| 379 Register G5_klass = G5; // Incoming | |
| 380 Register O0_obj = O0; // Outgoing | |
| 381 | |
| 382 if (id == new_instance_id) { | |
| 383 __ set_info("new_instance", dont_gc_arguments); | |
| 384 } else if (id == fast_new_instance_id) { | |
| 385 __ set_info("fast new_instance", dont_gc_arguments); | |
| 386 } else { | |
| 387 assert(id == fast_new_instance_init_check_id, "bad StubID"); | |
| 388 __ set_info("fast new_instance init check", dont_gc_arguments); | |
| 389 } | |
| 390 | |
| 391 if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) && | |
| 392 UseTLAB && FastTLABRefill) { | |
| 393 Label slow_path; | |
| 394 Register G1_obj_size = G1; | |
| 395 Register G3_t1 = G3; | |
| 396 Register G4_t2 = G4; | |
| 397 assert_different_registers(G5_klass, G1_obj_size, G3_t1, G4_t2); | |
| 398 | |
| 399 // Push a frame since we may do dtrace notification for the | |
| 400 // allocation which requires calling out and we don't want | |
| 401 // to stomp the real return address. | |
| 402 __ save_frame(0); | |
| 403 | |
| 404 if (id == fast_new_instance_init_check_id) { | |
| 405 // make sure the klass is initialized | |
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406 __ ldub(G5_klass, in_bytes(InstanceKlass::init_state_offset()), G3_t1); |
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407 __ cmp_and_br_short(G3_t1, InstanceKlass::fully_initialized, Assembler::notEqual, Assembler::pn, slow_path); |
| 0 | 408 } |
| 409 #ifdef ASSERT | |
| 410 // assert object can be fast path allocated | |
| 411 { | |
| 412 Label ok, not_ok; | |
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413 __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
| 3839 | 414 // make sure it's an instance (LH > 0) |
| 415 __ cmp_and_br_short(G1_obj_size, 0, Assembler::lessEqual, Assembler::pn, not_ok); | |
| 0 | 416 __ btst(Klass::_lh_instance_slow_path_bit, G1_obj_size); |
| 417 __ br(Assembler::zero, false, Assembler::pn, ok); | |
| 418 __ delayed()->nop(); | |
| 419 __ bind(not_ok); | |
| 420 __ stop("assert(can be fast path allocated)"); | |
| 421 __ should_not_reach_here(); | |
| 422 __ bind(ok); | |
| 423 } | |
| 424 #endif // ASSERT | |
| 425 // if we got here then the TLAB allocation failed, so try | |
| 426 // refilling the TLAB or allocating directly from eden. | |
| 427 Label retry_tlab, try_eden; | |
| 428 __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G5_klass | |
| 429 | |
| 430 __ bind(retry_tlab); | |
| 431 | |
| 432 // get the instance size | |
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433 __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
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434 |
| 0 | 435 __ tlab_allocate(O0_obj, G1_obj_size, 0, G3_t1, slow_path); |
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436 |
| 0 | 437 __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2); |
| 438 __ verify_oop(O0_obj); | |
| 439 __ mov(O0, I0); | |
| 440 __ ret(); | |
| 441 __ delayed()->restore(); | |
| 442 | |
| 443 __ bind(try_eden); | |
| 444 // get the instance size | |
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445 __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
| 0 | 446 __ eden_allocate(O0_obj, G1_obj_size, 0, G3_t1, G4_t2, slow_path); |
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447 __ incr_allocated_bytes(G1_obj_size, G3_t1, G4_t2); |
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448 |
| 0 | 449 __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2); |
| 450 __ verify_oop(O0_obj); | |
| 451 __ mov(O0, I0); | |
| 452 __ ret(); | |
| 453 __ delayed()->restore(); | |
| 454 | |
| 455 __ bind(slow_path); | |
| 456 | |
| 457 // pop this frame so generate_stub_call can push it's own | |
| 458 __ restore(); | |
| 459 } | |
| 460 | |
| 461 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_instance), G5_klass); | |
| 462 // I0->O0: new instance | |
| 463 } | |
| 464 | |
| 465 break; | |
| 466 | |
| 467 case counter_overflow_id: | |
| 1783 | 468 // G4 contains bci, G5 contains method |
| 469 oop_maps = generate_stub_call(sasm, noreg, CAST_FROM_FN_PTR(address, counter_overflow), G4, G5); | |
| 0 | 470 break; |
| 471 | |
| 472 case new_type_array_id: | |
| 473 case new_object_array_id: | |
| 474 { | |
| 475 Register G5_klass = G5; // Incoming | |
| 476 Register G4_length = G4; // Incoming | |
| 477 Register O0_obj = O0; // Outgoing | |
| 478 | |
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479 Address klass_lh(G5_klass, Klass::layout_helper_offset()); |
| 0 | 480 assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); |
| 481 assert(Klass::_lh_header_size_mask == 0xFF, "bytewise"); | |
| 482 // Use this offset to pick out an individual byte of the layout_helper: | |
| 483 const int klass_lh_header_size_offset = ((BytesPerInt - 1) // 3 - 2 selects byte {0,1,0,0} | |
| 484 - Klass::_lh_header_size_shift / BitsPerByte); | |
| 485 | |
| 486 if (id == new_type_array_id) { | |
| 487 __ set_info("new_type_array", dont_gc_arguments); | |
| 488 } else { | |
| 489 __ set_info("new_object_array", dont_gc_arguments); | |
| 490 } | |
| 491 | |
| 492 #ifdef ASSERT | |
| 493 // assert object type is really an array of the proper kind | |
| 494 { | |
| 495 Label ok; | |
| 496 Register G3_t1 = G3; | |
| 497 __ ld(klass_lh, G3_t1); | |
| 498 __ sra(G3_t1, Klass::_lh_array_tag_shift, G3_t1); | |
| 499 int tag = ((id == new_type_array_id) | |
| 500 ? Klass::_lh_array_tag_type_value | |
| 501 : Klass::_lh_array_tag_obj_value); | |
| 3839 | 502 __ cmp_and_brx_short(G3_t1, tag, Assembler::equal, Assembler::pt, ok); |
| 0 | 503 __ stop("assert(is an array klass)"); |
| 504 __ should_not_reach_here(); | |
| 505 __ bind(ok); | |
| 506 } | |
| 507 #endif // ASSERT | |
| 508 | |
| 509 if (UseTLAB && FastTLABRefill) { | |
| 510 Label slow_path; | |
| 511 Register G1_arr_size = G1; | |
| 512 Register G3_t1 = G3; | |
| 513 Register O1_t2 = O1; | |
| 514 assert_different_registers(G5_klass, G4_length, G1_arr_size, G3_t1, O1_t2); | |
| 515 | |
| 516 // check that array length is small enough for fast path | |
| 517 __ set(C1_MacroAssembler::max_array_allocation_length, G3_t1); | |
| 3839 | 518 __ cmp_and_br_short(G4_length, G3_t1, Assembler::greaterUnsigned, Assembler::pn, slow_path); |
| 0 | 519 |
| 520 // if we got here then the TLAB allocation failed, so try | |
| 521 // refilling the TLAB or allocating directly from eden. | |
| 522 Label retry_tlab, try_eden; | |
| 523 __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G4_length and G5_klass | |
| 524 | |
| 525 __ bind(retry_tlab); | |
| 526 | |
| 527 // get the allocation size: (length << (layout_helper & 0x1F)) + header_size | |
| 528 __ ld(klass_lh, G3_t1); | |
| 529 __ sll(G4_length, G3_t1, G1_arr_size); | |
| 530 __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1); | |
| 531 __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1); | |
| 532 __ add(G1_arr_size, G3_t1, G1_arr_size); | |
| 533 __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size); // align up | |
| 534 __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size); | |
| 535 | |
| 536 __ tlab_allocate(O0_obj, G1_arr_size, 0, G3_t1, slow_path); // preserves G1_arr_size | |
| 537 | |
| 538 __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2); | |
| 539 __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset); | |
| 540 __ sub(G1_arr_size, G3_t1, O1_t2); // body length | |
| 541 __ add(O0_obj, G3_t1, G3_t1); // body start | |
| 542 __ initialize_body(G3_t1, O1_t2); | |
| 543 __ verify_oop(O0_obj); | |
| 544 __ retl(); | |
| 545 __ delayed()->nop(); | |
| 546 | |
| 547 __ bind(try_eden); | |
| 548 // get the allocation size: (length << (layout_helper & 0x1F)) + header_size | |
| 549 __ ld(klass_lh, G3_t1); | |
| 550 __ sll(G4_length, G3_t1, G1_arr_size); | |
| 551 __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1); | |
| 552 __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1); | |
| 553 __ add(G1_arr_size, G3_t1, G1_arr_size); | |
| 554 __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size); | |
| 555 __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size); | |
| 556 | |
| 557 __ eden_allocate(O0_obj, G1_arr_size, 0, G3_t1, O1_t2, slow_path); // preserves G1_arr_size | |
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558 __ incr_allocated_bytes(G1_arr_size, G3_t1, O1_t2); |
| 0 | 559 |
| 560 __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2); | |
| 561 __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset); | |
| 562 __ sub(G1_arr_size, G3_t1, O1_t2); // body length | |
| 563 __ add(O0_obj, G3_t1, G3_t1); // body start | |
| 564 __ initialize_body(G3_t1, O1_t2); | |
| 565 __ verify_oop(O0_obj); | |
| 566 __ retl(); | |
| 567 __ delayed()->nop(); | |
| 568 | |
| 569 __ bind(slow_path); | |
| 570 } | |
| 571 | |
| 572 if (id == new_type_array_id) { | |
| 573 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_type_array), G5_klass, G4_length); | |
| 574 } else { | |
| 575 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_object_array), G5_klass, G4_length); | |
| 576 } | |
| 577 // I0 -> O0: new array | |
| 578 } | |
| 579 break; | |
| 580 | |
| 581 case new_multi_array_id: | |
| 582 { // O0: klass | |
| 583 // O1: rank | |
| 584 // O2: address of 1st dimension | |
| 585 __ set_info("new_multi_array", dont_gc_arguments); | |
| 586 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_multi_array), I0, I1, I2); | |
| 587 // I0 -> O0: new multi array | |
| 588 } | |
| 589 break; | |
| 590 | |
| 591 case register_finalizer_id: | |
| 592 { | |
| 593 __ set_info("register_finalizer", dont_gc_arguments); | |
| 594 | |
| 595 // load the klass and check the has finalizer flag | |
| 596 Label register_finalizer; | |
| 597 Register t = O1; | |
| 2002 | 598 __ load_klass(O0, t); |
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599 __ ld(t, in_bytes(Klass::access_flags_offset()), t); |
| 0 | 600 __ set(JVM_ACC_HAS_FINALIZER, G3); |
| 601 __ andcc(G3, t, G0); | |
| 602 __ br(Assembler::notZero, false, Assembler::pt, register_finalizer); | |
| 603 __ delayed()->nop(); | |
| 604 | |
| 605 // do a leaf return | |
| 606 __ retl(); | |
| 607 __ delayed()->nop(); | |
| 608 | |
| 609 __ bind(register_finalizer); | |
| 610 OopMap* oop_map = save_live_registers(sasm); | |
| 611 int call_offset = __ call_RT(noreg, noreg, | |
| 612 CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), I0); | |
| 613 oop_maps = new OopMapSet(); | |
| 614 oop_maps->add_gc_map(call_offset, oop_map); | |
| 615 | |
| 616 // Now restore all the live registers | |
| 617 restore_live_registers(sasm); | |
| 618 | |
| 619 __ ret(); | |
| 620 __ delayed()->restore(); | |
| 621 } | |
| 622 break; | |
| 623 | |
| 624 case throw_range_check_failed_id: | |
| 625 { __ set_info("range_check_failed", dont_gc_arguments); // arguments will be discarded | |
| 626 // G4: index | |
| 627 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true); | |
| 628 } | |
| 629 break; | |
| 630 | |
| 631 case throw_index_exception_id: | |
| 632 { __ set_info("index_range_check_failed", dont_gc_arguments); // arguments will be discarded | |
| 633 // G4: index | |
| 634 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true); | |
| 635 } | |
| 636 break; | |
| 637 | |
| 638 case throw_div0_exception_id: | |
| 639 { __ set_info("throw_div0_exception", dont_gc_arguments); | |
| 640 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false); | |
| 641 } | |
| 642 break; | |
| 643 | |
| 644 case throw_null_pointer_exception_id: | |
| 645 { __ set_info("throw_null_pointer_exception", dont_gc_arguments); | |
| 646 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false); | |
| 647 } | |
| 648 break; | |
| 649 | |
| 650 case handle_exception_id: | |
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651 { __ set_info("handle_exception", dont_gc_arguments); |
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652 oop_maps = generate_handle_exception(id, sasm); |
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653 } |
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654 break; |
| 0 | 655 |
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656 case handle_exception_from_callee_id: |
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657 { __ set_info("handle_exception_from_callee", dont_gc_arguments); |
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658 oop_maps = generate_handle_exception(id, sasm); |
| 0 | 659 } |
| 660 break; | |
| 661 | |
| 662 case unwind_exception_id: | |
| 663 { | |
| 664 // O0: exception | |
| 665 // I7: address of call to this method | |
| 666 | |
| 667 __ set_info("unwind_exception", dont_gc_arguments); | |
| 668 __ mov(Oexception, Oexception->after_save()); | |
| 669 __ add(I7, frame::pc_return_offset, Oissuing_pc->after_save()); | |
| 670 | |
| 671 __ call_VM_leaf(L7_thread_cache, CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 672 G2_thread, Oissuing_pc->after_save()); |
| 0 | 673 __ verify_not_null_oop(Oexception->after_save()); |
| 1564 | 674 |
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675 // Restore SP from L7 if the exception PC is a method handle call site. |
| 1564 | 676 __ mov(O0, G5); // Save the target address. |
| 677 __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), L0); | |
| 678 __ tst(L0); // Condition codes are preserved over the restore. | |
| 679 __ restore(); | |
| 680 | |
| 681 __ jmp(G5, 0); | |
| 682 __ delayed()->movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP); // Restore SP if required. | |
| 0 | 683 } |
| 684 break; | |
| 685 | |
| 686 case throw_array_store_exception_id: | |
| 687 { | |
| 688 __ set_info("throw_array_store_exception", dont_gc_arguments); | |
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689 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true); |
| 0 | 690 } |
| 691 break; | |
| 692 | |
| 693 case throw_class_cast_exception_id: | |
| 694 { | |
| 695 // G4: object | |
| 696 __ set_info("throw_class_cast_exception", dont_gc_arguments); | |
| 697 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true); | |
| 698 } | |
| 699 break; | |
| 700 | |
| 701 case throw_incompatible_class_change_error_id: | |
| 702 { | |
| 703 __ set_info("throw_incompatible_class_cast_exception", dont_gc_arguments); | |
| 704 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false); | |
| 705 } | |
| 706 break; | |
| 707 | |
| 708 case slow_subtype_check_id: | |
| 709 { // Support for uint StubRoutine::partial_subtype_check( Klass sub, Klass super ); | |
| 710 // Arguments : | |
| 711 // | |
| 712 // ret : G3 | |
| 713 // sub : G3, argument, destroyed | |
| 714 // super: G1, argument, not changed | |
| 715 // raddr: O7, blown by call | |
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716 Label miss; |
| 0 | 717 |
| 718 __ save_frame(0); // Blow no registers! | |
| 719 | |
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720 __ check_klass_subtype_slow_path(G3, G1, L0, L1, L2, L4, NULL, &miss); |
| 0 | 721 |
| 722 __ mov(1, G3); | |
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723 __ ret(); // Result in G5 is 'true' |
| 0 | 724 __ delayed()->restore(); // free copy or add can go here |
| 725 | |
| 726 __ bind(miss); | |
| 727 __ mov(0, G3); | |
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728 __ ret(); // Result in G5 is 'false' |
| 0 | 729 __ delayed()->restore(); // free copy or add can go here |
| 730 } | |
| 731 | |
| 732 case monitorenter_nofpu_id: | |
| 733 case monitorenter_id: | |
| 734 { // G4: object | |
| 735 // G5: lock address | |
| 736 __ set_info("monitorenter", dont_gc_arguments); | |
| 737 | |
| 738 int save_fpu_registers = (id == monitorenter_id); | |
| 739 // make a frame and preserve the caller's caller-save registers | |
| 740 OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); | |
| 741 | |
| 742 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), G4, G5); | |
| 743 | |
| 744 oop_maps = new OopMapSet(); | |
| 745 oop_maps->add_gc_map(call_offset, oop_map); | |
| 746 restore_live_registers(sasm, save_fpu_registers); | |
| 747 | |
| 748 __ ret(); | |
| 749 __ delayed()->restore(); | |
| 750 } | |
| 751 break; | |
| 752 | |
| 753 case monitorexit_nofpu_id: | |
| 754 case monitorexit_id: | |
| 755 { // G4: lock address | |
| 756 // note: really a leaf routine but must setup last java sp | |
| 757 // => use call_RT for now (speed can be improved by | |
| 758 // doing last java sp setup manually) | |
| 759 __ set_info("monitorexit", dont_gc_arguments); | |
| 760 | |
| 761 int save_fpu_registers = (id == monitorexit_id); | |
| 762 // make a frame and preserve the caller's caller-save registers | |
| 763 OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); | |
| 764 | |
| 765 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), G4); | |
| 766 | |
| 767 oop_maps = new OopMapSet(); | |
| 768 oop_maps->add_gc_map(call_offset, oop_map); | |
| 769 restore_live_registers(sasm, save_fpu_registers); | |
| 770 | |
| 771 __ ret(); | |
| 772 __ delayed()->restore(); | |
|
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7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
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|
773 } |
|
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|
774 break; |
| 0 | 775 |
|
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|
776 case deoptimize_id: |
|
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|
777 { |
|
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|
778 __ set_info("deoptimize", dont_gc_arguments); |
|
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7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
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779 OopMap* oop_map = save_live_registers(sasm); |
|
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780 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize)); |
|
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781 oop_maps = new OopMapSet(); |
|
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782 oop_maps->add_gc_map(call_offset, oop_map); |
|
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783 restore_live_registers(sasm); |
|
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|
784 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
|
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785 assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
|
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786 AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
|
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|
787 __ jump_to(dest, O0); |
|
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|
788 __ delayed()->restore(); |
| 0 | 789 } |
| 790 break; | |
| 791 | |
| 792 case access_field_patching_id: | |
| 793 { __ set_info("access_field_patching", dont_gc_arguments); | |
| 794 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching)); | |
| 795 } | |
| 796 break; | |
| 797 | |
| 798 case load_klass_patching_id: | |
| 799 { __ set_info("load_klass_patching", dont_gc_arguments); | |
| 800 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching)); | |
| 801 } | |
| 802 break; | |
| 803 | |
|
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804 case load_mirror_patching_id: |
|
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805 { __ set_info("load_mirror_patching", dont_gc_arguments); |
|
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806 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching)); |
|
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|
807 } |
|
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|
808 break; |
|
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|
809 |
|
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7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
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|
810 case load_appendix_patching_id: |
|
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|
811 { __ set_info("load_appendix_patching", dont_gc_arguments); |
|
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812 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_appendix_patching)); |
|
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|
813 } |
|
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|
814 break; |
|
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|
815 |
| 0 | 816 case dtrace_object_alloc_id: |
| 817 { // O0: object | |
| 818 __ set_info("dtrace_object_alloc", dont_gc_arguments); | |
| 819 // we can't gc here so skip the oopmap but make sure that all | |
| 820 // the live registers get saved. | |
| 821 save_live_registers(sasm); | |
| 822 | |
| 823 __ save_thread(L7_thread_cache); | |
| 824 __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), | |
| 825 relocInfo::runtime_call_type); | |
| 826 __ delayed()->mov(I0, O0); | |
| 827 __ restore_thread(L7_thread_cache); | |
| 828 | |
| 829 restore_live_registers(sasm); | |
| 830 __ ret(); | |
| 831 __ delayed()->restore(); | |
| 832 } | |
| 833 break; | |
| 834 | |
|
8001
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8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
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diff
changeset
|
835 #if INCLUDE_ALL_GCS |
| 342 | 836 case g1_pre_barrier_slow_id: |
| 837 { // G4: previous value of memory | |
| 838 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 839 if (bs->kind() != BarrierSet::G1SATBCTLogging) { | |
| 840 __ save_frame(0); | |
| 841 __ set((int)id, O1); | |
| 842 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0); | |
| 843 __ should_not_reach_here(); | |
| 844 break; | |
| 845 } | |
| 846 | |
| 847 __ set_info("g1_pre_barrier_slow_id", dont_gc_arguments); | |
| 848 | |
| 849 Register pre_val = G4; | |
| 850 Register tmp = G1_scratch; | |
| 851 Register tmp2 = G3_scratch; | |
| 852 | |
| 853 Label refill, restart; | |
| 854 bool with_frame = false; // I don't know if we can do with-frame. | |
| 855 int satb_q_index_byte_offset = | |
| 856 in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 857 PtrQueue::byte_offset_of_index()); | |
| 858 int satb_q_buf_byte_offset = | |
| 859 in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 860 PtrQueue::byte_offset_of_buf()); | |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
changeset
|
861 |
| 342 | 862 __ bind(restart); |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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3839
diff
changeset
|
863 // Load the index into the SATB buffer. PtrQueue::_index is a |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
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|
864 // size_t so ld_ptr is appropriate |
| 342 | 865 __ ld_ptr(G2_thread, satb_q_index_byte_offset, tmp); |
| 866 | |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
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diff
changeset
|
867 // index == 0? |
|
4fe626cbf0bf
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diff
changeset
|
868 __ cmp_and_brx_short(tmp, G0, Assembler::equal, Assembler::pn, refill); |
| 342 | 869 |
|
3888
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johnc
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diff
changeset
|
870 __ ld_ptr(G2_thread, satb_q_buf_byte_offset, tmp2); |
| 342 | 871 __ sub(tmp, oopSize, tmp); |
| 872 | |
| 873 __ st_ptr(pre_val, tmp2, tmp); // [_buf + index] := <address_of_card> | |
| 874 // Use return-from-leaf | |
| 875 __ retl(); | |
| 876 __ delayed()->st_ptr(tmp, G2_thread, satb_q_index_byte_offset); | |
| 877 | |
| 878 __ bind(refill); | |
| 879 __ save_frame(0); | |
| 880 | |
| 881 __ mov(pre_val, L0); | |
| 882 __ mov(tmp, L1); | |
| 883 __ mov(tmp2, L2); | |
| 884 | |
| 885 __ call_VM_leaf(L7_thread_cache, | |
| 886 CAST_FROM_FN_PTR(address, | |
| 887 SATBMarkQueueSet::handle_zero_index_for_thread), | |
| 888 G2_thread); | |
| 889 | |
| 890 __ mov(L0, pre_val); | |
| 891 __ mov(L1, tmp); | |
| 892 __ mov(L2, tmp2); | |
| 893 | |
| 894 __ br(Assembler::always, /*annul*/false, Assembler::pt, restart); | |
| 895 __ delayed()->restore(); | |
| 896 } | |
| 897 break; | |
| 898 | |
| 899 case g1_post_barrier_slow_id: | |
| 900 { | |
| 901 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 902 if (bs->kind() != BarrierSet::G1SATBCTLogging) { | |
| 903 __ save_frame(0); | |
| 904 __ set((int)id, O1); | |
| 905 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0); | |
| 906 __ should_not_reach_here(); | |
| 907 break; | |
| 908 } | |
| 909 | |
| 910 __ set_info("g1_post_barrier_slow_id", dont_gc_arguments); | |
| 911 | |
| 912 Register addr = G4; | |
| 913 Register cardtable = G5; | |
| 914 Register tmp = G1_scratch; | |
| 915 Register tmp2 = G3_scratch; | |
| 916 jbyte* byte_map_base = ((CardTableModRefBS*)bs)->byte_map_base; | |
| 917 | |
|
12835
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8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
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diff
changeset
|
918 Label not_already_dirty, restart, refill, young_card; |
| 342 | 919 |
| 920 #ifdef _LP64 | |
| 921 __ srlx(addr, CardTableModRefBS::card_shift, addr); | |
| 922 #else | |
| 923 __ srl(addr, CardTableModRefBS::card_shift, addr); | |
| 924 #endif | |
| 925 | |
| 727 | 926 AddressLiteral rs(byte_map_base); |
| 927 __ set(rs, cardtable); // cardtable := <card table base> | |
| 342 | 928 __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable] |
| 929 | |
|
12835
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8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
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12160
diff
changeset
|
930 __ cmp_and_br_short(tmp, G1SATBCardTableModRefBS::g1_young_card_val(), Assembler::equal, Assembler::pt, young_card); |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
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diff
changeset
|
931 |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
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diff
changeset
|
932 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
12160
diff
changeset
|
933 __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable] |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
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diff
changeset
|
934 |
|
3888
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diff
changeset
|
935 assert(CardTableModRefBS::dirty_card_val() == 0, "otherwise check this code"); |
|
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diff
changeset
|
936 __ cmp_and_br_short(tmp, G0, Assembler::notEqual, Assembler::pt, not_already_dirty); |
| 342 | 937 |
|
12835
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diff
changeset
|
938 __ bind(young_card); |
| 342 | 939 // We didn't take the branch, so we're already dirty: return. |
| 940 // Use return-from-leaf | |
| 941 __ retl(); | |
| 942 __ delayed()->nop(); | |
| 943 | |
| 944 // Not dirty. | |
| 945 __ bind(not_already_dirty); | |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
changeset
|
946 |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
changeset
|
947 // Get cardtable + tmp into a reg by itself |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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parents:
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diff
changeset
|
948 __ add(addr, cardtable, tmp2); |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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parents:
3839
diff
changeset
|
949 |
| 342 | 950 // First, dirty it. |
| 951 __ stb(G0, tmp2, 0); // [cardPtr] := 0 (i.e., dirty). | |
| 952 | |
| 953 Register tmp3 = cardtable; | |
| 954 Register tmp4 = tmp; | |
| 955 | |
| 956 // these registers are now dead | |
| 957 addr = cardtable = tmp = noreg; | |
| 958 | |
| 959 int dirty_card_q_index_byte_offset = | |
| 960 in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 961 PtrQueue::byte_offset_of_index()); | |
| 962 int dirty_card_q_buf_byte_offset = | |
| 963 in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 964 PtrQueue::byte_offset_of_buf()); | |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
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diff
changeset
|
965 |
| 342 | 966 __ bind(restart); |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
967 |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
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diff
changeset
|
968 // Get the index into the update buffer. PtrQueue::_index is |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
changeset
|
969 // a size_t so ld_ptr is appropriate here. |
| 342 | 970 __ ld_ptr(G2_thread, dirty_card_q_index_byte_offset, tmp3); |
| 971 | |
|
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johnc
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diff
changeset
|
972 // index == 0? |
|
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diff
changeset
|
973 __ cmp_and_brx_short(tmp3, G0, Assembler::equal, Assembler::pn, refill); |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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parents:
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diff
changeset
|
974 |
|
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johnc
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changeset
|
975 __ ld_ptr(G2_thread, dirty_card_q_buf_byte_offset, tmp4); |
| 342 | 976 __ sub(tmp3, oopSize, tmp3); |
| 977 | |
| 978 __ st_ptr(tmp2, tmp4, tmp3); // [_buf + index] := <address_of_card> | |
| 979 // Use return-from-leaf | |
| 980 __ retl(); | |
| 981 __ delayed()->st_ptr(tmp3, G2_thread, dirty_card_q_index_byte_offset); | |
| 982 | |
| 983 __ bind(refill); | |
| 984 __ save_frame(0); | |
| 985 | |
| 986 __ mov(tmp2, L0); | |
| 987 __ mov(tmp3, L1); | |
| 988 __ mov(tmp4, L2); | |
| 989 | |
| 990 __ call_VM_leaf(L7_thread_cache, | |
| 991 CAST_FROM_FN_PTR(address, | |
| 992 DirtyCardQueueSet::handle_zero_index_for_thread), | |
| 993 G2_thread); | |
| 994 | |
| 995 __ mov(L0, tmp2); | |
| 996 __ mov(L1, tmp3); | |
| 997 __ mov(L2, tmp4); | |
| 998 | |
| 999 __ br(Assembler::always, /*annul*/false, Assembler::pt, restart); | |
| 1000 __ delayed()->restore(); | |
| 1001 } | |
| 1002 break; | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
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6725
diff
changeset
|
1003 #endif // INCLUDE_ALL_GCS |
| 342 | 1004 |
| 8860 | 1005 case predicate_failed_trap_id: |
| 1006 { | |
| 1007 __ set_info("predicate_failed_trap", dont_gc_arguments); | |
| 1008 OopMap* oop_map = save_live_registers(sasm); | |
| 1009 | |
| 1010 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap)); | |
| 1011 | |
| 1012 oop_maps = new OopMapSet(); | |
| 1013 oop_maps->add_gc_map(call_offset, oop_map); | |
| 1014 | |
| 1015 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); | |
| 1016 assert(deopt_blob != NULL, "deoptimization blob must have been created"); | |
| 1017 restore_live_registers(sasm); | |
|
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8011582: assert(nbits == 32 || (-(1 << nbits-1) <= x && x < ( 1 << nbits-1))) failed: value out of range
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|
1018 |
|
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8011582: assert(nbits == 32 || (-(1 << nbits-1) <= x && x < ( 1 << nbits-1))) failed: value out of range
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|
1019 AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
|
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|
1020 __ jump_to(dest, O0); |
|
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8011582: assert(nbits == 32 || (-(1 << nbits-1) <= x && x < ( 1 << nbits-1))) failed: value out of range
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|
1021 __ delayed()->restore(); |
| 8860 | 1022 } |
| 1023 break; | |
| 1024 | |
| 0 | 1025 default: |
| 1026 { __ set_info("unimplemented entry", dont_gc_arguments); | |
| 1027 __ save_frame(0); | |
| 1028 __ set((int)id, O1); | |
| 1029 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), O1); | |
| 1030 __ should_not_reach_here(); | |
| 1031 } | |
| 1032 break; | |
| 1033 } | |
| 1034 return oop_maps; | |
| 1035 } | |
| 1036 | |
| 1037 | |
|
2321
1b4e6a5d98e0
7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
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2170
diff
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|
1038 OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler* sasm) { |
|
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1039 __ block_comment("generate_handle_exception"); |
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1040 |
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1041 // Save registers, if required. |
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1042 OopMapSet* oop_maps = new OopMapSet(); |
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1043 OopMap* oop_map = NULL; |
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1044 switch (id) { |
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1045 case forward_exception_id: |
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1046 // We're handling an exception in the context of a compiled frame. |
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1047 // The registers have been saved in the standard places. Perform |
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1048 // an exception lookup in the caller and dispatch to the handler |
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1049 // if found. Otherwise unwind and dispatch to the callers |
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1050 // exception handler. |
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1051 oop_map = generate_oop_map(sasm, true); |
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1052 |
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1053 // transfer the pending exception to the exception_oop |
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1054 __ ld_ptr(G2_thread, in_bytes(JavaThread::pending_exception_offset()), Oexception); |
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1055 __ ld_ptr(Oexception, 0, G0); |
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1056 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::pending_exception_offset())); |
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1057 __ add(I7, frame::pc_return_offset, Oissuing_pc); |
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1058 break; |
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1059 case handle_exception_id: |
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1060 // At this point all registers MAY be live. |
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1061 oop_map = save_live_registers(sasm); |
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1062 __ mov(Oexception->after_save(), Oexception); |
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1063 __ mov(Oissuing_pc->after_save(), Oissuing_pc); |
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1064 break; |
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1065 case handle_exception_from_callee_id: |
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1066 // At this point all registers except exception oop (Oexception) |
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1067 // and exception pc (Oissuing_pc) are dead. |
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1068 oop_map = new OopMap(frame_size_in_bytes / sizeof(jint), 0); |
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1069 sasm->set_frame_size(frame_size_in_bytes / BytesPerWord); |
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1070 __ save_frame_c1(frame_size_in_bytes); |
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1071 __ mov(Oexception->after_save(), Oexception); |
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1072 __ mov(Oissuing_pc->after_save(), Oissuing_pc); |
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1073 break; |
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1074 default: ShouldNotReachHere(); |
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1075 } |
| 0 | 1076 |
| 1077 __ verify_not_null_oop(Oexception); | |
| 1078 | |
| 1079 // save the exception and issuing pc in the thread | |
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1080 __ st_ptr(Oexception, G2_thread, in_bytes(JavaThread::exception_oop_offset())); |
| 0 | 1081 __ st_ptr(Oissuing_pc, G2_thread, in_bytes(JavaThread::exception_pc_offset())); |
| 1082 | |
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1083 // use the throwing pc as the return address to lookup (has bci & oop map) |
| 0 | 1084 __ mov(Oissuing_pc, I7); |
| 1085 __ sub(I7, frame::pc_return_offset, I7); | |
| 1086 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc)); | |
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1087 oop_maps->add_gc_map(call_offset, oop_map); |
| 0 | 1088 |
| 1089 // Note: if nmethod has been deoptimized then regardless of | |
| 1090 // whether it had a handler or not we will deoptimize | |
| 1091 // by entering the deopt blob with a pending exception. | |
| 1092 | |
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1093 // Restore the registers that were saved at the beginning, remove |
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1094 // the frame and jump to the exception handler. |
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1095 switch (id) { |
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1096 case forward_exception_id: |
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1097 case handle_exception_id: |
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1098 restore_live_registers(sasm); |
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1099 __ jmp(O0, 0); |
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1100 __ delayed()->restore(); |
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1101 break; |
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1102 case handle_exception_from_callee_id: |
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1103 // Restore SP from L7 if the exception PC is a method handle call site. |
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1104 __ mov(O0, G5); // Save the target address. |
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1105 __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), L0); |
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1106 __ tst(L0); // Condition codes are preserved over the restore. |
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1107 __ restore(); |
| 0 | 1108 |
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1109 __ jmp(G5, 0); // jump to the exception handler |
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1110 __ delayed()->movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP); // Restore SP if required. |
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1111 break; |
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1112 default: ShouldNotReachHere(); |
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1113 } |
| 0 | 1114 |
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1115 return oop_maps; |
| 0 | 1116 } |
| 1117 | |
| 1118 | |
| 1119 #undef __ | |
| 1120 | |
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1121 const char *Runtime1::pd_name_for_address(address entry) { |
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1122 return "<unknown function>"; |
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1123 } |