Mon, 12 Mar 2012 15:28:07 -0700
7152957: VM crashes with assert(false) failed: bad AD file
Reviewed-by: kvn, never
Contributed-by: nils.eliasson@oracle.com
duke@435 | 1 | /* |
phh@2423 | 2 | * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "c1/c1_Defs.hpp" |
stefank@2314 | 27 | #include "c1/c1_MacroAssembler.hpp" |
stefank@2314 | 28 | #include "c1/c1_Runtime1.hpp" |
stefank@2314 | 29 | #include "interpreter/interpreter.hpp" |
stefank@2314 | 30 | #include "nativeInst_sparc.hpp" |
stefank@2314 | 31 | #include "oops/compiledICHolderOop.hpp" |
stefank@2314 | 32 | #include "oops/oop.inline.hpp" |
stefank@2314 | 33 | #include "prims/jvmtiExport.hpp" |
stefank@2314 | 34 | #include "register_sparc.hpp" |
stefank@2314 | 35 | #include "runtime/sharedRuntime.hpp" |
stefank@2314 | 36 | #include "runtime/signature.hpp" |
stefank@2314 | 37 | #include "runtime/vframeArray.hpp" |
stefank@2314 | 38 | #include "vmreg_sparc.inline.hpp" |
duke@435 | 39 | |
duke@435 | 40 | // Implementation of StubAssembler |
duke@435 | 41 | |
duke@435 | 42 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry_point, int number_of_arguments) { |
duke@435 | 43 | // for sparc changing the number of arguments doesn't change |
duke@435 | 44 | // anything about the frame size so we'll always lie and claim that |
duke@435 | 45 | // we are only passing 1 argument. |
duke@435 | 46 | set_num_rt_args(1); |
duke@435 | 47 | |
duke@435 | 48 | assert_not_delayed(); |
duke@435 | 49 | // bang stack before going to runtime |
duke@435 | 50 | set(-os::vm_page_size() + STACK_BIAS, G3_scratch); |
duke@435 | 51 | st(G0, SP, G3_scratch); |
duke@435 | 52 | |
duke@435 | 53 | // debugging support |
duke@435 | 54 | assert(number_of_arguments >= 0 , "cannot have negative number of arguments"); |
duke@435 | 55 | |
duke@435 | 56 | set_last_Java_frame(SP, noreg); |
duke@435 | 57 | if (VerifyThread) mov(G2_thread, O0); // about to be smashed; pass early |
duke@435 | 58 | save_thread(L7_thread_cache); |
duke@435 | 59 | // do the call |
duke@435 | 60 | call(entry_point, relocInfo::runtime_call_type); |
duke@435 | 61 | if (!VerifyThread) { |
duke@435 | 62 | delayed()->mov(G2_thread, O0); // pass thread as first argument |
duke@435 | 63 | } else { |
duke@435 | 64 | delayed()->nop(); // (thread already passed) |
duke@435 | 65 | } |
duke@435 | 66 | int call_offset = offset(); // offset of return address |
duke@435 | 67 | restore_thread(L7_thread_cache); |
duke@435 | 68 | reset_last_Java_frame(); |
duke@435 | 69 | |
duke@435 | 70 | // check for pending exceptions |
duke@435 | 71 | { Label L; |
twisti@1162 | 72 | Address exception_addr(G2_thread, Thread::pending_exception_offset()); |
duke@435 | 73 | ld_ptr(exception_addr, Gtemp); |
kvn@3037 | 74 | br_null_short(Gtemp, pt, L); |
twisti@1162 | 75 | Address vm_result_addr(G2_thread, JavaThread::vm_result_offset()); |
duke@435 | 76 | st_ptr(G0, vm_result_addr); |
twisti@1162 | 77 | Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset()); |
duke@435 | 78 | st_ptr(G0, vm_result_addr_2); |
duke@435 | 79 | |
duke@435 | 80 | if (frame_size() == no_frame_size) { |
duke@435 | 81 | // we use O7 linkage so that forward_exception_entry has the issuing PC |
duke@435 | 82 | call(StubRoutines::forward_exception_entry(), relocInfo::runtime_call_type); |
duke@435 | 83 | delayed()->restore(); |
duke@435 | 84 | } else if (_stub_id == Runtime1::forward_exception_id) { |
duke@435 | 85 | should_not_reach_here(); |
duke@435 | 86 | } else { |
twisti@1162 | 87 | AddressLiteral exc(Runtime1::entry_for(Runtime1::forward_exception_id)); |
twisti@1162 | 88 | jump_to(exc, G4); |
duke@435 | 89 | delayed()->nop(); |
duke@435 | 90 | } |
duke@435 | 91 | bind(L); |
duke@435 | 92 | } |
duke@435 | 93 | |
duke@435 | 94 | // get oop result if there is one and reset the value in the thread |
duke@435 | 95 | if (oop_result1->is_valid()) { // get oop result if there is one and reset it in the thread |
duke@435 | 96 | get_vm_result (oop_result1); |
duke@435 | 97 | } else { |
duke@435 | 98 | // be a little paranoid and clear the result |
twisti@1162 | 99 | Address vm_result_addr(G2_thread, JavaThread::vm_result_offset()); |
duke@435 | 100 | st_ptr(G0, vm_result_addr); |
duke@435 | 101 | } |
duke@435 | 102 | |
duke@435 | 103 | if (oop_result2->is_valid()) { |
duke@435 | 104 | get_vm_result_2(oop_result2); |
duke@435 | 105 | } else { |
duke@435 | 106 | // be a little paranoid and clear the result |
twisti@1162 | 107 | Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset()); |
duke@435 | 108 | st_ptr(G0, vm_result_addr_2); |
duke@435 | 109 | } |
duke@435 | 110 | |
duke@435 | 111 | return call_offset; |
duke@435 | 112 | } |
duke@435 | 113 | |
duke@435 | 114 | |
duke@435 | 115 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1) { |
duke@435 | 116 | // O0 is reserved for the thread |
duke@435 | 117 | mov(arg1, O1); |
duke@435 | 118 | return call_RT(oop_result1, oop_result2, entry, 1); |
duke@435 | 119 | } |
duke@435 | 120 | |
duke@435 | 121 | |
duke@435 | 122 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2) { |
duke@435 | 123 | // O0 is reserved for the thread |
duke@435 | 124 | mov(arg1, O1); |
duke@435 | 125 | mov(arg2, O2); assert(arg2 != O1, "smashed argument"); |
duke@435 | 126 | return call_RT(oop_result1, oop_result2, entry, 2); |
duke@435 | 127 | } |
duke@435 | 128 | |
duke@435 | 129 | |
duke@435 | 130 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2, Register arg3) { |
duke@435 | 131 | // O0 is reserved for the thread |
duke@435 | 132 | mov(arg1, O1); |
duke@435 | 133 | mov(arg2, O2); assert(arg2 != O1, "smashed argument"); |
duke@435 | 134 | mov(arg3, O3); assert(arg3 != O1 && arg3 != O2, "smashed argument"); |
duke@435 | 135 | return call_RT(oop_result1, oop_result2, entry, 3); |
duke@435 | 136 | } |
duke@435 | 137 | |
duke@435 | 138 | |
duke@435 | 139 | // Implementation of Runtime1 |
duke@435 | 140 | |
duke@435 | 141 | #define __ sasm-> |
duke@435 | 142 | |
duke@435 | 143 | static int cpu_reg_save_offsets[FrameMap::nof_cpu_regs]; |
duke@435 | 144 | static int fpu_reg_save_offsets[FrameMap::nof_fpu_regs]; |
duke@435 | 145 | static int reg_save_size_in_words; |
duke@435 | 146 | static int frame_size_in_bytes = -1; |
duke@435 | 147 | |
duke@435 | 148 | static OopMap* generate_oop_map(StubAssembler* sasm, bool save_fpu_registers) { |
duke@435 | 149 | assert(frame_size_in_bytes == __ total_frame_size_in_bytes(reg_save_size_in_words), |
twisti@2603 | 150 | "mismatch in calculation"); |
duke@435 | 151 | sasm->set_frame_size(frame_size_in_bytes / BytesPerWord); |
duke@435 | 152 | int frame_size_in_slots = frame_size_in_bytes / sizeof(jint); |
duke@435 | 153 | OopMap* oop_map = new OopMap(frame_size_in_slots, 0); |
duke@435 | 154 | |
duke@435 | 155 | int i; |
duke@435 | 156 | for (i = 0; i < FrameMap::nof_cpu_regs; i++) { |
duke@435 | 157 | Register r = as_Register(i); |
duke@435 | 158 | if (r == G1 || r == G3 || r == G4 || r == G5) { |
duke@435 | 159 | int sp_offset = cpu_reg_save_offsets[i]; |
duke@435 | 160 | oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset), |
duke@435 | 161 | r->as_VMReg()); |
duke@435 | 162 | } |
duke@435 | 163 | } |
duke@435 | 164 | |
duke@435 | 165 | if (save_fpu_registers) { |
duke@435 | 166 | for (i = 0; i < FrameMap::nof_fpu_regs; i++) { |
duke@435 | 167 | FloatRegister r = as_FloatRegister(i); |
duke@435 | 168 | int sp_offset = fpu_reg_save_offsets[i]; |
duke@435 | 169 | oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset), |
duke@435 | 170 | r->as_VMReg()); |
duke@435 | 171 | } |
duke@435 | 172 | } |
duke@435 | 173 | return oop_map; |
duke@435 | 174 | } |
duke@435 | 175 | |
duke@435 | 176 | static OopMap* save_live_registers(StubAssembler* sasm, bool save_fpu_registers = true) { |
duke@435 | 177 | assert(frame_size_in_bytes == __ total_frame_size_in_bytes(reg_save_size_in_words), |
twisti@2603 | 178 | "mismatch in calculation"); |
duke@435 | 179 | __ save_frame_c1(frame_size_in_bytes); |
duke@435 | 180 | |
duke@435 | 181 | // Record volatile registers as callee-save values in an OopMap so their save locations will be |
duke@435 | 182 | // propagated to the caller frame's RegisterMap during StackFrameStream construction (needed for |
duke@435 | 183 | // deoptimization; see compiledVFrame::create_stack_value). The caller's I, L and O registers |
duke@435 | 184 | // are saved in register windows - I's and L's in the caller's frame and O's in the stub frame |
duke@435 | 185 | // (as the stub's I's) when the runtime routine called by the stub creates its frame. |
duke@435 | 186 | // OopMap frame sizes are in c2 stack slot sizes (sizeof(jint)) |
duke@435 | 187 | |
duke@435 | 188 | int i; |
duke@435 | 189 | for (i = 0; i < FrameMap::nof_cpu_regs; i++) { |
duke@435 | 190 | Register r = as_Register(i); |
duke@435 | 191 | if (r == G1 || r == G3 || r == G4 || r == G5) { |
duke@435 | 192 | int sp_offset = cpu_reg_save_offsets[i]; |
duke@435 | 193 | __ st_ptr(r, SP, (sp_offset * BytesPerWord) + STACK_BIAS); |
duke@435 | 194 | } |
duke@435 | 195 | } |
duke@435 | 196 | |
duke@435 | 197 | if (save_fpu_registers) { |
duke@435 | 198 | for (i = 0; i < FrameMap::nof_fpu_regs; i++) { |
duke@435 | 199 | FloatRegister r = as_FloatRegister(i); |
duke@435 | 200 | int sp_offset = fpu_reg_save_offsets[i]; |
duke@435 | 201 | __ stf(FloatRegisterImpl::S, r, SP, (sp_offset * BytesPerWord) + STACK_BIAS); |
duke@435 | 202 | } |
duke@435 | 203 | } |
duke@435 | 204 | |
duke@435 | 205 | return generate_oop_map(sasm, save_fpu_registers); |
duke@435 | 206 | } |
duke@435 | 207 | |
duke@435 | 208 | static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true) { |
duke@435 | 209 | for (int i = 0; i < FrameMap::nof_cpu_regs; i++) { |
duke@435 | 210 | Register r = as_Register(i); |
duke@435 | 211 | if (r == G1 || r == G3 || r == G4 || r == G5) { |
duke@435 | 212 | __ ld_ptr(SP, (cpu_reg_save_offsets[i] * BytesPerWord) + STACK_BIAS, r); |
duke@435 | 213 | } |
duke@435 | 214 | } |
duke@435 | 215 | |
duke@435 | 216 | if (restore_fpu_registers) { |
duke@435 | 217 | for (int i = 0; i < FrameMap::nof_fpu_regs; i++) { |
duke@435 | 218 | FloatRegister r = as_FloatRegister(i); |
duke@435 | 219 | __ ldf(FloatRegisterImpl::S, SP, (fpu_reg_save_offsets[i] * BytesPerWord) + STACK_BIAS, r); |
duke@435 | 220 | } |
duke@435 | 221 | } |
duke@435 | 222 | } |
duke@435 | 223 | |
duke@435 | 224 | |
duke@435 | 225 | void Runtime1::initialize_pd() { |
duke@435 | 226 | // compute word offsets from SP at which live (non-windowed) registers are captured by stub routines |
duke@435 | 227 | // |
duke@435 | 228 | // A stub routine will have a frame that is at least large enough to hold |
duke@435 | 229 | // a register window save area (obviously) and the volatile g registers |
duke@435 | 230 | // and floating registers. A user of save_live_registers can have a frame |
duke@435 | 231 | // that has more scratch area in it (although typically they will use L-regs). |
duke@435 | 232 | // in that case the frame will look like this (stack growing down) |
duke@435 | 233 | // |
duke@435 | 234 | // FP -> | | |
duke@435 | 235 | // | scratch mem | |
duke@435 | 236 | // | " " | |
duke@435 | 237 | // -------------- |
duke@435 | 238 | // | float regs | |
duke@435 | 239 | // | " " | |
duke@435 | 240 | // --------------- |
duke@435 | 241 | // | G regs | |
duke@435 | 242 | // | " " | |
duke@435 | 243 | // --------------- |
duke@435 | 244 | // | abi reg. | |
duke@435 | 245 | // | window save | |
duke@435 | 246 | // | area | |
duke@435 | 247 | // SP -> --------------- |
duke@435 | 248 | // |
duke@435 | 249 | int i; |
duke@435 | 250 | int sp_offset = round_to(frame::register_save_words, 2); // start doubleword aligned |
duke@435 | 251 | |
duke@435 | 252 | // only G int registers are saved explicitly; others are found in register windows |
duke@435 | 253 | for (i = 0; i < FrameMap::nof_cpu_regs; i++) { |
duke@435 | 254 | Register r = as_Register(i); |
duke@435 | 255 | if (r == G1 || r == G3 || r == G4 || r == G5) { |
duke@435 | 256 | cpu_reg_save_offsets[i] = sp_offset; |
duke@435 | 257 | sp_offset++; |
duke@435 | 258 | } |
duke@435 | 259 | } |
duke@435 | 260 | |
duke@435 | 261 | // all float registers are saved explicitly |
duke@435 | 262 | assert(FrameMap::nof_fpu_regs == 32, "double registers not handled here"); |
duke@435 | 263 | for (i = 0; i < FrameMap::nof_fpu_regs; i++) { |
duke@435 | 264 | fpu_reg_save_offsets[i] = sp_offset; |
duke@435 | 265 | sp_offset++; |
duke@435 | 266 | } |
duke@435 | 267 | reg_save_size_in_words = sp_offset - frame::memory_parameter_word_sp_offset; |
duke@435 | 268 | // this should match assembler::total_frame_size_in_bytes, which |
duke@435 | 269 | // isn't callable from this context. It's checked by an assert when |
duke@435 | 270 | // it's used though. |
duke@435 | 271 | frame_size_in_bytes = align_size_up(sp_offset * wordSize, 8); |
duke@435 | 272 | } |
duke@435 | 273 | |
duke@435 | 274 | |
duke@435 | 275 | OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) { |
duke@435 | 276 | // make a frame and preserve the caller's caller-save registers |
duke@435 | 277 | OopMap* oop_map = save_live_registers(sasm); |
duke@435 | 278 | int call_offset; |
duke@435 | 279 | if (!has_argument) { |
duke@435 | 280 | call_offset = __ call_RT(noreg, noreg, target); |
duke@435 | 281 | } else { |
duke@435 | 282 | call_offset = __ call_RT(noreg, noreg, target, G4); |
duke@435 | 283 | } |
duke@435 | 284 | OopMapSet* oop_maps = new OopMapSet(); |
duke@435 | 285 | oop_maps->add_gc_map(call_offset, oop_map); |
duke@435 | 286 | |
duke@435 | 287 | __ should_not_reach_here(); |
duke@435 | 288 | return oop_maps; |
duke@435 | 289 | } |
duke@435 | 290 | |
duke@435 | 291 | |
duke@435 | 292 | OopMapSet* Runtime1::generate_stub_call(StubAssembler* sasm, Register result, address target, |
duke@435 | 293 | Register arg1, Register arg2, Register arg3) { |
duke@435 | 294 | // make a frame and preserve the caller's caller-save registers |
duke@435 | 295 | OopMap* oop_map = save_live_registers(sasm); |
duke@435 | 296 | |
duke@435 | 297 | int call_offset; |
duke@435 | 298 | if (arg1 == noreg) { |
duke@435 | 299 | call_offset = __ call_RT(result, noreg, target); |
duke@435 | 300 | } else if (arg2 == noreg) { |
duke@435 | 301 | call_offset = __ call_RT(result, noreg, target, arg1); |
duke@435 | 302 | } else if (arg3 == noreg) { |
duke@435 | 303 | call_offset = __ call_RT(result, noreg, target, arg1, arg2); |
duke@435 | 304 | } else { |
duke@435 | 305 | call_offset = __ call_RT(result, noreg, target, arg1, arg2, arg3); |
duke@435 | 306 | } |
duke@435 | 307 | OopMapSet* oop_maps = NULL; |
duke@435 | 308 | |
duke@435 | 309 | oop_maps = new OopMapSet(); |
duke@435 | 310 | oop_maps->add_gc_map(call_offset, oop_map); |
duke@435 | 311 | restore_live_registers(sasm); |
duke@435 | 312 | |
duke@435 | 313 | __ ret(); |
duke@435 | 314 | __ delayed()->restore(); |
duke@435 | 315 | |
duke@435 | 316 | return oop_maps; |
duke@435 | 317 | } |
duke@435 | 318 | |
duke@435 | 319 | |
duke@435 | 320 | OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) { |
duke@435 | 321 | // make a frame and preserve the caller's caller-save registers |
duke@435 | 322 | OopMap* oop_map = save_live_registers(sasm); |
duke@435 | 323 | |
duke@435 | 324 | // call the runtime patching routine, returns non-zero if nmethod got deopted. |
duke@435 | 325 | int call_offset = __ call_RT(noreg, noreg, target); |
duke@435 | 326 | OopMapSet* oop_maps = new OopMapSet(); |
duke@435 | 327 | oop_maps->add_gc_map(call_offset, oop_map); |
duke@435 | 328 | |
duke@435 | 329 | // re-execute the patched instruction or, if the nmethod was deoptmized, return to the |
duke@435 | 330 | // deoptimization handler entry that will cause re-execution of the current bytecode |
duke@435 | 331 | DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
duke@435 | 332 | assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
duke@435 | 333 | |
duke@435 | 334 | Label no_deopt; |
kvn@3037 | 335 | __ br_null_short(O0, Assembler::pt, no_deopt); |
duke@435 | 336 | |
duke@435 | 337 | // return to the deoptimization handler entry for unpacking and rexecute |
duke@435 | 338 | // if we simply returned the we'd deopt as if any call we patched had just |
duke@435 | 339 | // returned. |
duke@435 | 340 | |
duke@435 | 341 | restore_live_registers(sasm); |
iveresov@2476 | 342 | |
iveresov@2476 | 343 | AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
iveresov@2476 | 344 | __ jump_to(dest, O0); |
iveresov@2476 | 345 | __ delayed()->restore(); |
duke@435 | 346 | |
duke@435 | 347 | __ bind(no_deopt); |
duke@435 | 348 | restore_live_registers(sasm); |
duke@435 | 349 | __ ret(); |
duke@435 | 350 | __ delayed()->restore(); |
duke@435 | 351 | |
duke@435 | 352 | return oop_maps; |
duke@435 | 353 | } |
duke@435 | 354 | |
duke@435 | 355 | OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) { |
duke@435 | 356 | |
duke@435 | 357 | OopMapSet* oop_maps = NULL; |
duke@435 | 358 | // for better readability |
duke@435 | 359 | const bool must_gc_arguments = true; |
duke@435 | 360 | const bool dont_gc_arguments = false; |
duke@435 | 361 | |
duke@435 | 362 | // stub code & info for the different stubs |
duke@435 | 363 | switch (id) { |
duke@435 | 364 | case forward_exception_id: |
duke@435 | 365 | { |
twisti@2603 | 366 | oop_maps = generate_handle_exception(id, sasm); |
duke@435 | 367 | } |
duke@435 | 368 | break; |
duke@435 | 369 | |
duke@435 | 370 | case new_instance_id: |
duke@435 | 371 | case fast_new_instance_id: |
duke@435 | 372 | case fast_new_instance_init_check_id: |
duke@435 | 373 | { |
duke@435 | 374 | Register G5_klass = G5; // Incoming |
duke@435 | 375 | Register O0_obj = O0; // Outgoing |
duke@435 | 376 | |
duke@435 | 377 | if (id == new_instance_id) { |
duke@435 | 378 | __ set_info("new_instance", dont_gc_arguments); |
duke@435 | 379 | } else if (id == fast_new_instance_id) { |
duke@435 | 380 | __ set_info("fast new_instance", dont_gc_arguments); |
duke@435 | 381 | } else { |
duke@435 | 382 | assert(id == fast_new_instance_init_check_id, "bad StubID"); |
duke@435 | 383 | __ set_info("fast new_instance init check", dont_gc_arguments); |
duke@435 | 384 | } |
duke@435 | 385 | |
duke@435 | 386 | if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) && |
duke@435 | 387 | UseTLAB && FastTLABRefill) { |
duke@435 | 388 | Label slow_path; |
duke@435 | 389 | Register G1_obj_size = G1; |
duke@435 | 390 | Register G3_t1 = G3; |
duke@435 | 391 | Register G4_t2 = G4; |
duke@435 | 392 | assert_different_registers(G5_klass, G1_obj_size, G3_t1, G4_t2); |
duke@435 | 393 | |
duke@435 | 394 | // Push a frame since we may do dtrace notification for the |
duke@435 | 395 | // allocation which requires calling out and we don't want |
duke@435 | 396 | // to stomp the real return address. |
duke@435 | 397 | __ save_frame(0); |
duke@435 | 398 | |
duke@435 | 399 | if (id == fast_new_instance_init_check_id) { |
duke@435 | 400 | // make sure the klass is initialized |
kvn@3400 | 401 | __ ldub(G5_klass, in_bytes(instanceKlass::init_state_offset()), G3_t1); |
kvn@3037 | 402 | __ cmp_and_br_short(G3_t1, instanceKlass::fully_initialized, Assembler::notEqual, Assembler::pn, slow_path); |
duke@435 | 403 | } |
duke@435 | 404 | #ifdef ASSERT |
duke@435 | 405 | // assert object can be fast path allocated |
duke@435 | 406 | { |
duke@435 | 407 | Label ok, not_ok; |
stefank@3391 | 408 | __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
kvn@3037 | 409 | // make sure it's an instance (LH > 0) |
kvn@3037 | 410 | __ cmp_and_br_short(G1_obj_size, 0, Assembler::lessEqual, Assembler::pn, not_ok); |
duke@435 | 411 | __ btst(Klass::_lh_instance_slow_path_bit, G1_obj_size); |
duke@435 | 412 | __ br(Assembler::zero, false, Assembler::pn, ok); |
duke@435 | 413 | __ delayed()->nop(); |
duke@435 | 414 | __ bind(not_ok); |
duke@435 | 415 | __ stop("assert(can be fast path allocated)"); |
duke@435 | 416 | __ should_not_reach_here(); |
duke@435 | 417 | __ bind(ok); |
duke@435 | 418 | } |
duke@435 | 419 | #endif // ASSERT |
duke@435 | 420 | // if we got here then the TLAB allocation failed, so try |
duke@435 | 421 | // refilling the TLAB or allocating directly from eden. |
duke@435 | 422 | Label retry_tlab, try_eden; |
duke@435 | 423 | __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G5_klass |
duke@435 | 424 | |
duke@435 | 425 | __ bind(retry_tlab); |
duke@435 | 426 | |
duke@435 | 427 | // get the instance size |
stefank@3391 | 428 | __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
phh@2423 | 429 | |
duke@435 | 430 | __ tlab_allocate(O0_obj, G1_obj_size, 0, G3_t1, slow_path); |
phh@2423 | 431 | |
duke@435 | 432 | __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2); |
duke@435 | 433 | __ verify_oop(O0_obj); |
duke@435 | 434 | __ mov(O0, I0); |
duke@435 | 435 | __ ret(); |
duke@435 | 436 | __ delayed()->restore(); |
duke@435 | 437 | |
duke@435 | 438 | __ bind(try_eden); |
duke@435 | 439 | // get the instance size |
stefank@3391 | 440 | __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
duke@435 | 441 | __ eden_allocate(O0_obj, G1_obj_size, 0, G3_t1, G4_t2, slow_path); |
phh@2447 | 442 | __ incr_allocated_bytes(G1_obj_size, G3_t1, G4_t2); |
phh@2423 | 443 | |
duke@435 | 444 | __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2); |
duke@435 | 445 | __ verify_oop(O0_obj); |
duke@435 | 446 | __ mov(O0, I0); |
duke@435 | 447 | __ ret(); |
duke@435 | 448 | __ delayed()->restore(); |
duke@435 | 449 | |
duke@435 | 450 | __ bind(slow_path); |
duke@435 | 451 | |
duke@435 | 452 | // pop this frame so generate_stub_call can push it's own |
duke@435 | 453 | __ restore(); |
duke@435 | 454 | } |
duke@435 | 455 | |
duke@435 | 456 | oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_instance), G5_klass); |
duke@435 | 457 | // I0->O0: new instance |
duke@435 | 458 | } |
duke@435 | 459 | |
duke@435 | 460 | break; |
duke@435 | 461 | |
duke@435 | 462 | case counter_overflow_id: |
iveresov@2138 | 463 | // G4 contains bci, G5 contains method |
iveresov@2138 | 464 | oop_maps = generate_stub_call(sasm, noreg, CAST_FROM_FN_PTR(address, counter_overflow), G4, G5); |
duke@435 | 465 | break; |
duke@435 | 466 | |
duke@435 | 467 | case new_type_array_id: |
duke@435 | 468 | case new_object_array_id: |
duke@435 | 469 | { |
duke@435 | 470 | Register G5_klass = G5; // Incoming |
duke@435 | 471 | Register G4_length = G4; // Incoming |
duke@435 | 472 | Register O0_obj = O0; // Outgoing |
duke@435 | 473 | |
stefank@3391 | 474 | Address klass_lh(G5_klass, Klass::layout_helper_offset()); |
duke@435 | 475 | assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); |
duke@435 | 476 | assert(Klass::_lh_header_size_mask == 0xFF, "bytewise"); |
duke@435 | 477 | // Use this offset to pick out an individual byte of the layout_helper: |
duke@435 | 478 | const int klass_lh_header_size_offset = ((BytesPerInt - 1) // 3 - 2 selects byte {0,1,0,0} |
duke@435 | 479 | - Klass::_lh_header_size_shift / BitsPerByte); |
duke@435 | 480 | |
duke@435 | 481 | if (id == new_type_array_id) { |
duke@435 | 482 | __ set_info("new_type_array", dont_gc_arguments); |
duke@435 | 483 | } else { |
duke@435 | 484 | __ set_info("new_object_array", dont_gc_arguments); |
duke@435 | 485 | } |
duke@435 | 486 | |
duke@435 | 487 | #ifdef ASSERT |
duke@435 | 488 | // assert object type is really an array of the proper kind |
duke@435 | 489 | { |
duke@435 | 490 | Label ok; |
duke@435 | 491 | Register G3_t1 = G3; |
duke@435 | 492 | __ ld(klass_lh, G3_t1); |
duke@435 | 493 | __ sra(G3_t1, Klass::_lh_array_tag_shift, G3_t1); |
duke@435 | 494 | int tag = ((id == new_type_array_id) |
duke@435 | 495 | ? Klass::_lh_array_tag_type_value |
duke@435 | 496 | : Klass::_lh_array_tag_obj_value); |
kvn@3037 | 497 | __ cmp_and_brx_short(G3_t1, tag, Assembler::equal, Assembler::pt, ok); |
duke@435 | 498 | __ stop("assert(is an array klass)"); |
duke@435 | 499 | __ should_not_reach_here(); |
duke@435 | 500 | __ bind(ok); |
duke@435 | 501 | } |
duke@435 | 502 | #endif // ASSERT |
duke@435 | 503 | |
duke@435 | 504 | if (UseTLAB && FastTLABRefill) { |
duke@435 | 505 | Label slow_path; |
duke@435 | 506 | Register G1_arr_size = G1; |
duke@435 | 507 | Register G3_t1 = G3; |
duke@435 | 508 | Register O1_t2 = O1; |
duke@435 | 509 | assert_different_registers(G5_klass, G4_length, G1_arr_size, G3_t1, O1_t2); |
duke@435 | 510 | |
duke@435 | 511 | // check that array length is small enough for fast path |
duke@435 | 512 | __ set(C1_MacroAssembler::max_array_allocation_length, G3_t1); |
kvn@3037 | 513 | __ cmp_and_br_short(G4_length, G3_t1, Assembler::greaterUnsigned, Assembler::pn, slow_path); |
duke@435 | 514 | |
duke@435 | 515 | // if we got here then the TLAB allocation failed, so try |
duke@435 | 516 | // refilling the TLAB or allocating directly from eden. |
duke@435 | 517 | Label retry_tlab, try_eden; |
duke@435 | 518 | __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G4_length and G5_klass |
duke@435 | 519 | |
duke@435 | 520 | __ bind(retry_tlab); |
duke@435 | 521 | |
duke@435 | 522 | // get the allocation size: (length << (layout_helper & 0x1F)) + header_size |
duke@435 | 523 | __ ld(klass_lh, G3_t1); |
duke@435 | 524 | __ sll(G4_length, G3_t1, G1_arr_size); |
duke@435 | 525 | __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1); |
duke@435 | 526 | __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1); |
duke@435 | 527 | __ add(G1_arr_size, G3_t1, G1_arr_size); |
duke@435 | 528 | __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size); // align up |
duke@435 | 529 | __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size); |
duke@435 | 530 | |
duke@435 | 531 | __ tlab_allocate(O0_obj, G1_arr_size, 0, G3_t1, slow_path); // preserves G1_arr_size |
duke@435 | 532 | |
duke@435 | 533 | __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2); |
duke@435 | 534 | __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset); |
duke@435 | 535 | __ sub(G1_arr_size, G3_t1, O1_t2); // body length |
duke@435 | 536 | __ add(O0_obj, G3_t1, G3_t1); // body start |
duke@435 | 537 | __ initialize_body(G3_t1, O1_t2); |
duke@435 | 538 | __ verify_oop(O0_obj); |
duke@435 | 539 | __ retl(); |
duke@435 | 540 | __ delayed()->nop(); |
duke@435 | 541 | |
duke@435 | 542 | __ bind(try_eden); |
duke@435 | 543 | // get the allocation size: (length << (layout_helper & 0x1F)) + header_size |
duke@435 | 544 | __ ld(klass_lh, G3_t1); |
duke@435 | 545 | __ sll(G4_length, G3_t1, G1_arr_size); |
duke@435 | 546 | __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1); |
duke@435 | 547 | __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1); |
duke@435 | 548 | __ add(G1_arr_size, G3_t1, G1_arr_size); |
duke@435 | 549 | __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size); |
duke@435 | 550 | __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size); |
duke@435 | 551 | |
duke@435 | 552 | __ eden_allocate(O0_obj, G1_arr_size, 0, G3_t1, O1_t2, slow_path); // preserves G1_arr_size |
phh@2447 | 553 | __ incr_allocated_bytes(G1_arr_size, G3_t1, O1_t2); |
duke@435 | 554 | |
duke@435 | 555 | __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2); |
duke@435 | 556 | __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset); |
duke@435 | 557 | __ sub(G1_arr_size, G3_t1, O1_t2); // body length |
duke@435 | 558 | __ add(O0_obj, G3_t1, G3_t1); // body start |
duke@435 | 559 | __ initialize_body(G3_t1, O1_t2); |
duke@435 | 560 | __ verify_oop(O0_obj); |
duke@435 | 561 | __ retl(); |
duke@435 | 562 | __ delayed()->nop(); |
duke@435 | 563 | |
duke@435 | 564 | __ bind(slow_path); |
duke@435 | 565 | } |
duke@435 | 566 | |
duke@435 | 567 | if (id == new_type_array_id) { |
duke@435 | 568 | oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_type_array), G5_klass, G4_length); |
duke@435 | 569 | } else { |
duke@435 | 570 | oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_object_array), G5_klass, G4_length); |
duke@435 | 571 | } |
duke@435 | 572 | // I0 -> O0: new array |
duke@435 | 573 | } |
duke@435 | 574 | break; |
duke@435 | 575 | |
duke@435 | 576 | case new_multi_array_id: |
duke@435 | 577 | { // O0: klass |
duke@435 | 578 | // O1: rank |
duke@435 | 579 | // O2: address of 1st dimension |
duke@435 | 580 | __ set_info("new_multi_array", dont_gc_arguments); |
duke@435 | 581 | oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_multi_array), I0, I1, I2); |
duke@435 | 582 | // I0 -> O0: new multi array |
duke@435 | 583 | } |
duke@435 | 584 | break; |
duke@435 | 585 | |
duke@435 | 586 | case register_finalizer_id: |
duke@435 | 587 | { |
duke@435 | 588 | __ set_info("register_finalizer", dont_gc_arguments); |
duke@435 | 589 | |
duke@435 | 590 | // load the klass and check the has finalizer flag |
duke@435 | 591 | Label register_finalizer; |
duke@435 | 592 | Register t = O1; |
iveresov@2344 | 593 | __ load_klass(O0, t); |
stefank@3391 | 594 | __ ld(t, in_bytes(Klass::access_flags_offset()), t); |
duke@435 | 595 | __ set(JVM_ACC_HAS_FINALIZER, G3); |
duke@435 | 596 | __ andcc(G3, t, G0); |
duke@435 | 597 | __ br(Assembler::notZero, false, Assembler::pt, register_finalizer); |
duke@435 | 598 | __ delayed()->nop(); |
duke@435 | 599 | |
duke@435 | 600 | // do a leaf return |
duke@435 | 601 | __ retl(); |
duke@435 | 602 | __ delayed()->nop(); |
duke@435 | 603 | |
duke@435 | 604 | __ bind(register_finalizer); |
duke@435 | 605 | OopMap* oop_map = save_live_registers(sasm); |
duke@435 | 606 | int call_offset = __ call_RT(noreg, noreg, |
duke@435 | 607 | CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), I0); |
duke@435 | 608 | oop_maps = new OopMapSet(); |
duke@435 | 609 | oop_maps->add_gc_map(call_offset, oop_map); |
duke@435 | 610 | |
duke@435 | 611 | // Now restore all the live registers |
duke@435 | 612 | restore_live_registers(sasm); |
duke@435 | 613 | |
duke@435 | 614 | __ ret(); |
duke@435 | 615 | __ delayed()->restore(); |
duke@435 | 616 | } |
duke@435 | 617 | break; |
duke@435 | 618 | |
duke@435 | 619 | case throw_range_check_failed_id: |
duke@435 | 620 | { __ set_info("range_check_failed", dont_gc_arguments); // arguments will be discarded |
duke@435 | 621 | // G4: index |
duke@435 | 622 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true); |
duke@435 | 623 | } |
duke@435 | 624 | break; |
duke@435 | 625 | |
duke@435 | 626 | case throw_index_exception_id: |
duke@435 | 627 | { __ set_info("index_range_check_failed", dont_gc_arguments); // arguments will be discarded |
duke@435 | 628 | // G4: index |
duke@435 | 629 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true); |
duke@435 | 630 | } |
duke@435 | 631 | break; |
duke@435 | 632 | |
duke@435 | 633 | case throw_div0_exception_id: |
duke@435 | 634 | { __ set_info("throw_div0_exception", dont_gc_arguments); |
duke@435 | 635 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false); |
duke@435 | 636 | } |
duke@435 | 637 | break; |
duke@435 | 638 | |
duke@435 | 639 | case throw_null_pointer_exception_id: |
duke@435 | 640 | { __ set_info("throw_null_pointer_exception", dont_gc_arguments); |
duke@435 | 641 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false); |
duke@435 | 642 | } |
duke@435 | 643 | break; |
duke@435 | 644 | |
duke@435 | 645 | case handle_exception_id: |
twisti@2603 | 646 | { __ set_info("handle_exception", dont_gc_arguments); |
twisti@2603 | 647 | oop_maps = generate_handle_exception(id, sasm); |
twisti@2603 | 648 | } |
twisti@2603 | 649 | break; |
duke@435 | 650 | |
twisti@2603 | 651 | case handle_exception_from_callee_id: |
twisti@2603 | 652 | { __ set_info("handle_exception_from_callee", dont_gc_arguments); |
twisti@2603 | 653 | oop_maps = generate_handle_exception(id, sasm); |
duke@435 | 654 | } |
duke@435 | 655 | break; |
duke@435 | 656 | |
duke@435 | 657 | case unwind_exception_id: |
duke@435 | 658 | { |
duke@435 | 659 | // O0: exception |
duke@435 | 660 | // I7: address of call to this method |
duke@435 | 661 | |
duke@435 | 662 | __ set_info("unwind_exception", dont_gc_arguments); |
duke@435 | 663 | __ mov(Oexception, Oexception->after_save()); |
duke@435 | 664 | __ add(I7, frame::pc_return_offset, Oissuing_pc->after_save()); |
duke@435 | 665 | |
duke@435 | 666 | __ call_VM_leaf(L7_thread_cache, CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), |
twisti@1730 | 667 | G2_thread, Oissuing_pc->after_save()); |
duke@435 | 668 | __ verify_not_null_oop(Oexception->after_save()); |
twisti@1919 | 669 | |
twisti@2603 | 670 | // Restore SP from L7 if the exception PC is a method handle call site. |
twisti@1919 | 671 | __ mov(O0, G5); // Save the target address. |
twisti@1919 | 672 | __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), L0); |
twisti@1919 | 673 | __ tst(L0); // Condition codes are preserved over the restore. |
twisti@1919 | 674 | __ restore(); |
twisti@1919 | 675 | |
twisti@1919 | 676 | __ jmp(G5, 0); |
twisti@1919 | 677 | __ delayed()->movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP); // Restore SP if required. |
duke@435 | 678 | } |
duke@435 | 679 | break; |
duke@435 | 680 | |
duke@435 | 681 | case throw_array_store_exception_id: |
duke@435 | 682 | { |
duke@435 | 683 | __ set_info("throw_array_store_exception", dont_gc_arguments); |
never@2488 | 684 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true); |
duke@435 | 685 | } |
duke@435 | 686 | break; |
duke@435 | 687 | |
duke@435 | 688 | case throw_class_cast_exception_id: |
duke@435 | 689 | { |
duke@435 | 690 | // G4: object |
duke@435 | 691 | __ set_info("throw_class_cast_exception", dont_gc_arguments); |
duke@435 | 692 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true); |
duke@435 | 693 | } |
duke@435 | 694 | break; |
duke@435 | 695 | |
duke@435 | 696 | case throw_incompatible_class_change_error_id: |
duke@435 | 697 | { |
duke@435 | 698 | __ set_info("throw_incompatible_class_cast_exception", dont_gc_arguments); |
duke@435 | 699 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false); |
duke@435 | 700 | } |
duke@435 | 701 | break; |
duke@435 | 702 | |
duke@435 | 703 | case slow_subtype_check_id: |
duke@435 | 704 | { // Support for uint StubRoutine::partial_subtype_check( Klass sub, Klass super ); |
duke@435 | 705 | // Arguments : |
duke@435 | 706 | // |
duke@435 | 707 | // ret : G3 |
duke@435 | 708 | // sub : G3, argument, destroyed |
duke@435 | 709 | // super: G1, argument, not changed |
duke@435 | 710 | // raddr: O7, blown by call |
jrose@1079 | 711 | Label miss; |
duke@435 | 712 | |
duke@435 | 713 | __ save_frame(0); // Blow no registers! |
duke@435 | 714 | |
jrose@1079 | 715 | __ check_klass_subtype_slow_path(G3, G1, L0, L1, L2, L4, NULL, &miss); |
duke@435 | 716 | |
duke@435 | 717 | __ mov(1, G3); |
jrose@1079 | 718 | __ ret(); // Result in G5 is 'true' |
duke@435 | 719 | __ delayed()->restore(); // free copy or add can go here |
duke@435 | 720 | |
duke@435 | 721 | __ bind(miss); |
duke@435 | 722 | __ mov(0, G3); |
jrose@1079 | 723 | __ ret(); // Result in G5 is 'false' |
duke@435 | 724 | __ delayed()->restore(); // free copy or add can go here |
duke@435 | 725 | } |
duke@435 | 726 | |
duke@435 | 727 | case monitorenter_nofpu_id: |
duke@435 | 728 | case monitorenter_id: |
duke@435 | 729 | { // G4: object |
duke@435 | 730 | // G5: lock address |
duke@435 | 731 | __ set_info("monitorenter", dont_gc_arguments); |
duke@435 | 732 | |
duke@435 | 733 | int save_fpu_registers = (id == monitorenter_id); |
duke@435 | 734 | // make a frame and preserve the caller's caller-save registers |
duke@435 | 735 | OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); |
duke@435 | 736 | |
duke@435 | 737 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), G4, G5); |
duke@435 | 738 | |
duke@435 | 739 | oop_maps = new OopMapSet(); |
duke@435 | 740 | oop_maps->add_gc_map(call_offset, oop_map); |
duke@435 | 741 | restore_live_registers(sasm, save_fpu_registers); |
duke@435 | 742 | |
duke@435 | 743 | __ ret(); |
duke@435 | 744 | __ delayed()->restore(); |
duke@435 | 745 | } |
duke@435 | 746 | break; |
duke@435 | 747 | |
duke@435 | 748 | case monitorexit_nofpu_id: |
duke@435 | 749 | case monitorexit_id: |
duke@435 | 750 | { // G4: lock address |
duke@435 | 751 | // note: really a leaf routine but must setup last java sp |
duke@435 | 752 | // => use call_RT for now (speed can be improved by |
duke@435 | 753 | // doing last java sp setup manually) |
duke@435 | 754 | __ set_info("monitorexit", dont_gc_arguments); |
duke@435 | 755 | |
duke@435 | 756 | int save_fpu_registers = (id == monitorexit_id); |
duke@435 | 757 | // make a frame and preserve the caller's caller-save registers |
duke@435 | 758 | OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); |
duke@435 | 759 | |
duke@435 | 760 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), G4); |
duke@435 | 761 | |
duke@435 | 762 | oop_maps = new OopMapSet(); |
duke@435 | 763 | oop_maps->add_gc_map(call_offset, oop_map); |
duke@435 | 764 | restore_live_registers(sasm, save_fpu_registers); |
duke@435 | 765 | |
duke@435 | 766 | __ ret(); |
duke@435 | 767 | __ delayed()->restore(); |
twisti@3244 | 768 | } |
twisti@3244 | 769 | break; |
duke@435 | 770 | |
twisti@3244 | 771 | case deoptimize_id: |
twisti@3244 | 772 | { |
twisti@3244 | 773 | __ set_info("deoptimize", dont_gc_arguments); |
twisti@3244 | 774 | OopMap* oop_map = save_live_registers(sasm); |
twisti@3244 | 775 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize)); |
twisti@3244 | 776 | oop_maps = new OopMapSet(); |
twisti@3244 | 777 | oop_maps->add_gc_map(call_offset, oop_map); |
twisti@3244 | 778 | restore_live_registers(sasm); |
twisti@3244 | 779 | DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
twisti@3244 | 780 | assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
twisti@3244 | 781 | AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
twisti@3244 | 782 | __ jump_to(dest, O0); |
twisti@3244 | 783 | __ delayed()->restore(); |
duke@435 | 784 | } |
duke@435 | 785 | break; |
duke@435 | 786 | |
duke@435 | 787 | case access_field_patching_id: |
duke@435 | 788 | { __ set_info("access_field_patching", dont_gc_arguments); |
duke@435 | 789 | oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching)); |
duke@435 | 790 | } |
duke@435 | 791 | break; |
duke@435 | 792 | |
duke@435 | 793 | case load_klass_patching_id: |
duke@435 | 794 | { __ set_info("load_klass_patching", dont_gc_arguments); |
duke@435 | 795 | oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching)); |
duke@435 | 796 | } |
duke@435 | 797 | break; |
duke@435 | 798 | |
duke@435 | 799 | case dtrace_object_alloc_id: |
duke@435 | 800 | { // O0: object |
duke@435 | 801 | __ set_info("dtrace_object_alloc", dont_gc_arguments); |
duke@435 | 802 | // we can't gc here so skip the oopmap but make sure that all |
duke@435 | 803 | // the live registers get saved. |
duke@435 | 804 | save_live_registers(sasm); |
duke@435 | 805 | |
duke@435 | 806 | __ save_thread(L7_thread_cache); |
duke@435 | 807 | __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), |
duke@435 | 808 | relocInfo::runtime_call_type); |
duke@435 | 809 | __ delayed()->mov(I0, O0); |
duke@435 | 810 | __ restore_thread(L7_thread_cache); |
duke@435 | 811 | |
duke@435 | 812 | restore_live_registers(sasm); |
duke@435 | 813 | __ ret(); |
duke@435 | 814 | __ delayed()->restore(); |
duke@435 | 815 | } |
duke@435 | 816 | break; |
duke@435 | 817 | |
ysr@777 | 818 | #ifndef SERIALGC |
ysr@777 | 819 | case g1_pre_barrier_slow_id: |
ysr@777 | 820 | { // G4: previous value of memory |
ysr@777 | 821 | BarrierSet* bs = Universe::heap()->barrier_set(); |
ysr@777 | 822 | if (bs->kind() != BarrierSet::G1SATBCTLogging) { |
ysr@777 | 823 | __ save_frame(0); |
ysr@777 | 824 | __ set((int)id, O1); |
ysr@777 | 825 | __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0); |
ysr@777 | 826 | __ should_not_reach_here(); |
ysr@777 | 827 | break; |
ysr@777 | 828 | } |
ysr@777 | 829 | |
ysr@777 | 830 | __ set_info("g1_pre_barrier_slow_id", dont_gc_arguments); |
ysr@777 | 831 | |
ysr@777 | 832 | Register pre_val = G4; |
ysr@777 | 833 | Register tmp = G1_scratch; |
ysr@777 | 834 | Register tmp2 = G3_scratch; |
ysr@777 | 835 | |
ysr@777 | 836 | Label refill, restart; |
ysr@777 | 837 | bool with_frame = false; // I don't know if we can do with-frame. |
ysr@777 | 838 | int satb_q_index_byte_offset = |
ysr@777 | 839 | in_bytes(JavaThread::satb_mark_queue_offset() + |
ysr@777 | 840 | PtrQueue::byte_offset_of_index()); |
ysr@777 | 841 | int satb_q_buf_byte_offset = |
ysr@777 | 842 | in_bytes(JavaThread::satb_mark_queue_offset() + |
ysr@777 | 843 | PtrQueue::byte_offset_of_buf()); |
johnc@3088 | 844 | |
ysr@777 | 845 | __ bind(restart); |
johnc@3088 | 846 | // Load the index into the SATB buffer. PtrQueue::_index is a |
johnc@3088 | 847 | // size_t so ld_ptr is appropriate |
ysr@777 | 848 | __ ld_ptr(G2_thread, satb_q_index_byte_offset, tmp); |
ysr@777 | 849 | |
johnc@3088 | 850 | // index == 0? |
johnc@3088 | 851 | __ cmp_and_brx_short(tmp, G0, Assembler::equal, Assembler::pn, refill); |
ysr@777 | 852 | |
johnc@3088 | 853 | __ ld_ptr(G2_thread, satb_q_buf_byte_offset, tmp2); |
ysr@777 | 854 | __ sub(tmp, oopSize, tmp); |
ysr@777 | 855 | |
ysr@777 | 856 | __ st_ptr(pre_val, tmp2, tmp); // [_buf + index] := <address_of_card> |
ysr@777 | 857 | // Use return-from-leaf |
ysr@777 | 858 | __ retl(); |
ysr@777 | 859 | __ delayed()->st_ptr(tmp, G2_thread, satb_q_index_byte_offset); |
ysr@777 | 860 | |
ysr@777 | 861 | __ bind(refill); |
ysr@777 | 862 | __ save_frame(0); |
ysr@777 | 863 | |
ysr@777 | 864 | __ mov(pre_val, L0); |
ysr@777 | 865 | __ mov(tmp, L1); |
ysr@777 | 866 | __ mov(tmp2, L2); |
ysr@777 | 867 | |
ysr@777 | 868 | __ call_VM_leaf(L7_thread_cache, |
ysr@777 | 869 | CAST_FROM_FN_PTR(address, |
ysr@777 | 870 | SATBMarkQueueSet::handle_zero_index_for_thread), |
ysr@777 | 871 | G2_thread); |
ysr@777 | 872 | |
ysr@777 | 873 | __ mov(L0, pre_val); |
ysr@777 | 874 | __ mov(L1, tmp); |
ysr@777 | 875 | __ mov(L2, tmp2); |
ysr@777 | 876 | |
ysr@777 | 877 | __ br(Assembler::always, /*annul*/false, Assembler::pt, restart); |
ysr@777 | 878 | __ delayed()->restore(); |
ysr@777 | 879 | } |
ysr@777 | 880 | break; |
ysr@777 | 881 | |
ysr@777 | 882 | case g1_post_barrier_slow_id: |
ysr@777 | 883 | { |
ysr@777 | 884 | BarrierSet* bs = Universe::heap()->barrier_set(); |
ysr@777 | 885 | if (bs->kind() != BarrierSet::G1SATBCTLogging) { |
ysr@777 | 886 | __ save_frame(0); |
ysr@777 | 887 | __ set((int)id, O1); |
ysr@777 | 888 | __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0); |
ysr@777 | 889 | __ should_not_reach_here(); |
ysr@777 | 890 | break; |
ysr@777 | 891 | } |
ysr@777 | 892 | |
ysr@777 | 893 | __ set_info("g1_post_barrier_slow_id", dont_gc_arguments); |
ysr@777 | 894 | |
ysr@777 | 895 | Register addr = G4; |
ysr@777 | 896 | Register cardtable = G5; |
ysr@777 | 897 | Register tmp = G1_scratch; |
ysr@777 | 898 | Register tmp2 = G3_scratch; |
ysr@777 | 899 | jbyte* byte_map_base = ((CardTableModRefBS*)bs)->byte_map_base; |
ysr@777 | 900 | |
ysr@777 | 901 | Label not_already_dirty, restart, refill; |
ysr@777 | 902 | |
ysr@777 | 903 | #ifdef _LP64 |
ysr@777 | 904 | __ srlx(addr, CardTableModRefBS::card_shift, addr); |
ysr@777 | 905 | #else |
ysr@777 | 906 | __ srl(addr, CardTableModRefBS::card_shift, addr); |
ysr@777 | 907 | #endif |
ysr@777 | 908 | |
twisti@1162 | 909 | AddressLiteral rs(byte_map_base); |
twisti@1162 | 910 | __ set(rs, cardtable); // cardtable := <card table base> |
ysr@777 | 911 | __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable] |
ysr@777 | 912 | |
johnc@3088 | 913 | assert(CardTableModRefBS::dirty_card_val() == 0, "otherwise check this code"); |
johnc@3088 | 914 | __ cmp_and_br_short(tmp, G0, Assembler::notEqual, Assembler::pt, not_already_dirty); |
ysr@777 | 915 | |
ysr@777 | 916 | // We didn't take the branch, so we're already dirty: return. |
ysr@777 | 917 | // Use return-from-leaf |
ysr@777 | 918 | __ retl(); |
ysr@777 | 919 | __ delayed()->nop(); |
ysr@777 | 920 | |
ysr@777 | 921 | // Not dirty. |
ysr@777 | 922 | __ bind(not_already_dirty); |
johnc@3088 | 923 | |
johnc@3088 | 924 | // Get cardtable + tmp into a reg by itself |
johnc@3088 | 925 | __ add(addr, cardtable, tmp2); |
johnc@3088 | 926 | |
ysr@777 | 927 | // First, dirty it. |
ysr@777 | 928 | __ stb(G0, tmp2, 0); // [cardPtr] := 0 (i.e., dirty). |
ysr@777 | 929 | |
ysr@777 | 930 | Register tmp3 = cardtable; |
ysr@777 | 931 | Register tmp4 = tmp; |
ysr@777 | 932 | |
ysr@777 | 933 | // these registers are now dead |
ysr@777 | 934 | addr = cardtable = tmp = noreg; |
ysr@777 | 935 | |
ysr@777 | 936 | int dirty_card_q_index_byte_offset = |
ysr@777 | 937 | in_bytes(JavaThread::dirty_card_queue_offset() + |
ysr@777 | 938 | PtrQueue::byte_offset_of_index()); |
ysr@777 | 939 | int dirty_card_q_buf_byte_offset = |
ysr@777 | 940 | in_bytes(JavaThread::dirty_card_queue_offset() + |
ysr@777 | 941 | PtrQueue::byte_offset_of_buf()); |
johnc@3088 | 942 | |
ysr@777 | 943 | __ bind(restart); |
johnc@3088 | 944 | |
johnc@3088 | 945 | // Get the index into the update buffer. PtrQueue::_index is |
johnc@3088 | 946 | // a size_t so ld_ptr is appropriate here. |
ysr@777 | 947 | __ ld_ptr(G2_thread, dirty_card_q_index_byte_offset, tmp3); |
ysr@777 | 948 | |
johnc@3088 | 949 | // index == 0? |
johnc@3088 | 950 | __ cmp_and_brx_short(tmp3, G0, Assembler::equal, Assembler::pn, refill); |
johnc@3088 | 951 | |
johnc@3088 | 952 | __ ld_ptr(G2_thread, dirty_card_q_buf_byte_offset, tmp4); |
ysr@777 | 953 | __ sub(tmp3, oopSize, tmp3); |
ysr@777 | 954 | |
ysr@777 | 955 | __ st_ptr(tmp2, tmp4, tmp3); // [_buf + index] := <address_of_card> |
ysr@777 | 956 | // Use return-from-leaf |
ysr@777 | 957 | __ retl(); |
ysr@777 | 958 | __ delayed()->st_ptr(tmp3, G2_thread, dirty_card_q_index_byte_offset); |
ysr@777 | 959 | |
ysr@777 | 960 | __ bind(refill); |
ysr@777 | 961 | __ save_frame(0); |
ysr@777 | 962 | |
ysr@777 | 963 | __ mov(tmp2, L0); |
ysr@777 | 964 | __ mov(tmp3, L1); |
ysr@777 | 965 | __ mov(tmp4, L2); |
ysr@777 | 966 | |
ysr@777 | 967 | __ call_VM_leaf(L7_thread_cache, |
ysr@777 | 968 | CAST_FROM_FN_PTR(address, |
ysr@777 | 969 | DirtyCardQueueSet::handle_zero_index_for_thread), |
ysr@777 | 970 | G2_thread); |
ysr@777 | 971 | |
ysr@777 | 972 | __ mov(L0, tmp2); |
ysr@777 | 973 | __ mov(L1, tmp3); |
ysr@777 | 974 | __ mov(L2, tmp4); |
ysr@777 | 975 | |
ysr@777 | 976 | __ br(Assembler::always, /*annul*/false, Assembler::pt, restart); |
ysr@777 | 977 | __ delayed()->restore(); |
ysr@777 | 978 | } |
ysr@777 | 979 | break; |
ysr@777 | 980 | #endif // !SERIALGC |
ysr@777 | 981 | |
duke@435 | 982 | default: |
duke@435 | 983 | { __ set_info("unimplemented entry", dont_gc_arguments); |
duke@435 | 984 | __ save_frame(0); |
duke@435 | 985 | __ set((int)id, O1); |
duke@435 | 986 | __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), O1); |
duke@435 | 987 | __ should_not_reach_here(); |
duke@435 | 988 | } |
duke@435 | 989 | break; |
duke@435 | 990 | } |
duke@435 | 991 | return oop_maps; |
duke@435 | 992 | } |
duke@435 | 993 | |
duke@435 | 994 | |
twisti@2603 | 995 | OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler* sasm) { |
twisti@2603 | 996 | __ block_comment("generate_handle_exception"); |
twisti@2603 | 997 | |
twisti@2603 | 998 | // Save registers, if required. |
twisti@2603 | 999 | OopMapSet* oop_maps = new OopMapSet(); |
twisti@2603 | 1000 | OopMap* oop_map = NULL; |
twisti@2603 | 1001 | switch (id) { |
twisti@2603 | 1002 | case forward_exception_id: |
twisti@2603 | 1003 | // We're handling an exception in the context of a compiled frame. |
twisti@2603 | 1004 | // The registers have been saved in the standard places. Perform |
twisti@2603 | 1005 | // an exception lookup in the caller and dispatch to the handler |
twisti@2603 | 1006 | // if found. Otherwise unwind and dispatch to the callers |
twisti@2603 | 1007 | // exception handler. |
twisti@2603 | 1008 | oop_map = generate_oop_map(sasm, true); |
twisti@2603 | 1009 | |
twisti@2603 | 1010 | // transfer the pending exception to the exception_oop |
twisti@2603 | 1011 | __ ld_ptr(G2_thread, in_bytes(JavaThread::pending_exception_offset()), Oexception); |
twisti@2603 | 1012 | __ ld_ptr(Oexception, 0, G0); |
twisti@2603 | 1013 | __ st_ptr(G0, G2_thread, in_bytes(JavaThread::pending_exception_offset())); |
twisti@2603 | 1014 | __ add(I7, frame::pc_return_offset, Oissuing_pc); |
twisti@2603 | 1015 | break; |
twisti@2603 | 1016 | case handle_exception_id: |
twisti@2603 | 1017 | // At this point all registers MAY be live. |
twisti@2603 | 1018 | oop_map = save_live_registers(sasm); |
twisti@2603 | 1019 | __ mov(Oexception->after_save(), Oexception); |
twisti@2603 | 1020 | __ mov(Oissuing_pc->after_save(), Oissuing_pc); |
twisti@2603 | 1021 | break; |
twisti@2603 | 1022 | case handle_exception_from_callee_id: |
twisti@2603 | 1023 | // At this point all registers except exception oop (Oexception) |
twisti@2603 | 1024 | // and exception pc (Oissuing_pc) are dead. |
twisti@2603 | 1025 | oop_map = new OopMap(frame_size_in_bytes / sizeof(jint), 0); |
twisti@2603 | 1026 | sasm->set_frame_size(frame_size_in_bytes / BytesPerWord); |
twisti@2603 | 1027 | __ save_frame_c1(frame_size_in_bytes); |
twisti@2603 | 1028 | __ mov(Oexception->after_save(), Oexception); |
twisti@2603 | 1029 | __ mov(Oissuing_pc->after_save(), Oissuing_pc); |
twisti@2603 | 1030 | break; |
twisti@2603 | 1031 | default: ShouldNotReachHere(); |
twisti@2603 | 1032 | } |
duke@435 | 1033 | |
duke@435 | 1034 | __ verify_not_null_oop(Oexception); |
duke@435 | 1035 | |
duke@435 | 1036 | // save the exception and issuing pc in the thread |
twisti@2603 | 1037 | __ st_ptr(Oexception, G2_thread, in_bytes(JavaThread::exception_oop_offset())); |
duke@435 | 1038 | __ st_ptr(Oissuing_pc, G2_thread, in_bytes(JavaThread::exception_pc_offset())); |
duke@435 | 1039 | |
twisti@2603 | 1040 | // use the throwing pc as the return address to lookup (has bci & oop map) |
duke@435 | 1041 | __ mov(Oissuing_pc, I7); |
duke@435 | 1042 | __ sub(I7, frame::pc_return_offset, I7); |
duke@435 | 1043 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc)); |
twisti@2603 | 1044 | oop_maps->add_gc_map(call_offset, oop_map); |
duke@435 | 1045 | |
duke@435 | 1046 | // Note: if nmethod has been deoptimized then regardless of |
duke@435 | 1047 | // whether it had a handler or not we will deoptimize |
duke@435 | 1048 | // by entering the deopt blob with a pending exception. |
duke@435 | 1049 | |
twisti@2603 | 1050 | // Restore the registers that were saved at the beginning, remove |
twisti@2603 | 1051 | // the frame and jump to the exception handler. |
twisti@2603 | 1052 | switch (id) { |
twisti@2603 | 1053 | case forward_exception_id: |
twisti@2603 | 1054 | case handle_exception_id: |
twisti@2603 | 1055 | restore_live_registers(sasm); |
twisti@2603 | 1056 | __ jmp(O0, 0); |
twisti@2603 | 1057 | __ delayed()->restore(); |
twisti@2603 | 1058 | break; |
twisti@2603 | 1059 | case handle_exception_from_callee_id: |
twisti@2603 | 1060 | // Restore SP from L7 if the exception PC is a method handle call site. |
twisti@2603 | 1061 | __ mov(O0, G5); // Save the target address. |
twisti@2603 | 1062 | __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), L0); |
twisti@2603 | 1063 | __ tst(L0); // Condition codes are preserved over the restore. |
twisti@2603 | 1064 | __ restore(); |
duke@435 | 1065 | |
twisti@2603 | 1066 | __ jmp(G5, 0); // jump to the exception handler |
twisti@2603 | 1067 | __ delayed()->movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP); // Restore SP if required. |
twisti@2603 | 1068 | break; |
twisti@2603 | 1069 | default: ShouldNotReachHere(); |
twisti@2603 | 1070 | } |
duke@435 | 1071 | |
twisti@2603 | 1072 | return oop_maps; |
duke@435 | 1073 | } |
duke@435 | 1074 | |
duke@435 | 1075 | |
duke@435 | 1076 | #undef __ |
duke@435 | 1077 | |
bobv@2036 | 1078 | const char *Runtime1::pd_name_for_address(address entry) { |
bobv@2036 | 1079 | return "<unknown function>"; |
bobv@2036 | 1080 | } |