Tue, 26 Jul 2016 17:06:17 +0800
Add multiply word to GPR instruction (mul) in MIPS assembler.
aoqi@1 | 1 | /* |
aoqi@1 | 2 | * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@1 | 3 | * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved. |
aoqi@1 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@1 | 5 | * |
aoqi@1 | 6 | * This code is free software; you can redistribute it and/or modify it |
aoqi@1 | 7 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@1 | 8 | * published by the Free Software Foundation. |
aoqi@1 | 9 | * |
aoqi@1 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@1 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@1 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@1 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@1 | 14 | * accompanied this code). |
aoqi@1 | 15 | * |
aoqi@1 | 16 | * You should have received a copy of the GNU General Public License version |
aoqi@1 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@1 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@1 | 19 | * |
aoqi@1 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@1 | 21 | * or visit www.oracle.com if you need additional information or have any |
aoqi@1 | 22 | * questions. |
aoqi@1 | 23 | * |
aoqi@1 | 24 | */ |
aoqi@1 | 25 | |
aoqi@1 | 26 | #include "precompiled.hpp" |
aoqi@1 | 27 | #include "asm/assembler.hpp" |
aoqi@1 | 28 | #include "c1/c1_Defs.hpp" |
aoqi@1 | 29 | #include "c1/c1_MacroAssembler.hpp" |
aoqi@1 | 30 | #include "c1/c1_Runtime1.hpp" |
aoqi@1 | 31 | #include "interpreter/interpreter.hpp" |
aoqi@1 | 32 | #include "nativeInst_mips.hpp" |
aoqi@1 | 33 | #include "oops/compiledICHolder.hpp" |
aoqi@1 | 34 | #include "oops/oop.inline.hpp" |
aoqi@1 | 35 | #include "prims/jvmtiExport.hpp" |
aoqi@1 | 36 | #include "register_mips.hpp" |
aoqi@1 | 37 | #include "runtime/sharedRuntime.hpp" |
aoqi@1 | 38 | #include "runtime/signature.hpp" |
aoqi@1 | 39 | #include "runtime/vframeArray.hpp" |
aoqi@1 | 40 | #include "vmreg_mips.inline.hpp" |
aoqi@1 | 41 | |
aoqi@1 | 42 | |
aoqi@1 | 43 | // Implementation of StubAssembler |
aoqi@1 | 44 | // this method will preserve the stack space for arguments as indicated by args_size |
aoqi@1 | 45 | // for stack alignment consideration, you cannot call this with argument in stack. |
aoqi@1 | 46 | // if you need >3 arguments, you must implement this method yourself. |
aoqi@1 | 47 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, int args_size) { |
aoqi@1 | 48 | // i use S7 for edi. |
aoqi@1 | 49 | // setup registers |
aoqi@1 | 50 | const Register thread = TREG; // is callee-saved register (Visual C++ calling conventions) |
aoqi@1 | 51 | assert(!(oop_result1->is_valid() || oop_result2->is_valid()) || oop_result1 != oop_result2, "registers must be different"); |
aoqi@1 | 52 | assert(oop_result1 != thread && oop_result2 != thread, "registers must be different"); |
aoqi@1 | 53 | assert(args_size >= 0, "illegal args_size"); |
aoqi@1 | 54 | |
aoqi@1 | 55 | set_num_rt_args(1 + args_size); |
aoqi@1 | 56 | |
aoqi@1 | 57 | |
aoqi@1 | 58 | // push java thread (becomes first argument of C function) |
aoqi@1 | 59 | #ifndef OPT_THREAD |
aoqi@1 | 60 | get_thread(thread); |
aoqi@1 | 61 | #endif |
aoqi@1 | 62 | move(A0, thread); |
aoqi@1 | 63 | |
aoqi@1 | 64 | set_last_Java_frame(thread, NOREG, FP, NULL); |
aoqi@1 | 65 | NOT_LP64(addi(SP, SP, - wordSize * (1+args_size))); |
aoqi@1 | 66 | move(AT, -(StackAlignmentInBytes)); |
aoqi@1 | 67 | andr(SP, SP, AT); |
aoqi@1 | 68 | |
aoqi@1 | 69 | relocate(relocInfo::internal_pc_type); |
aoqi@1 | 70 | { |
aoqi@1 | 71 | #ifndef _LP64 |
aoqi@1 | 72 | int save_pc = (int)pc() + 12 + NativeCall::return_address_offset; |
aoqi@1 | 73 | lui(AT, Assembler::split_high(save_pc)); |
aoqi@1 | 74 | addiu(AT, AT, Assembler::split_low(save_pc)); |
aoqi@1 | 75 | #else |
aoqi@1 | 76 | uintptr_t save_pc = (uintptr_t)pc() + NativeMovConstReg::instruction_size + 1 * BytesPerInstWord + NativeCall::return_address_offset; |
aoqi@1 | 77 | li48(AT, save_pc); |
aoqi@1 | 78 | #endif |
aoqi@1 | 79 | } |
aoqi@1 | 80 | st_ptr(AT, thread, in_bytes(JavaThread::last_Java_pc_offset())); |
aoqi@1 | 81 | |
aoqi@1 | 82 | // do the call |
aoqi@1 | 83 | //#define aoqi_test |
aoqi@1 | 84 | #ifdef aoqi_test |
aoqi@1 | 85 | tty->print_cr("StubRuntime::%s:%d entry: %lx", __func__, __LINE__, entry); |
aoqi@1 | 86 | #endif |
aoqi@1 | 87 | #ifndef _LP64 |
aoqi@1 | 88 | lui(T9, Assembler::split_high((int)entry)); |
aoqi@1 | 89 | addiu(T9, T9, Assembler::split_low((int)entry)); |
aoqi@1 | 90 | #else |
aoqi@1 | 91 | li48(T9, (intptr_t)entry); |
aoqi@1 | 92 | #endif |
aoqi@1 | 93 | jalr(T9); |
aoqi@1 | 94 | delayed()->nop(); |
aoqi@1 | 95 | int call_offset = offset(); |
aoqi@1 | 96 | |
aoqi@1 | 97 | // verify callee-saved register |
aoqi@1 | 98 | #ifdef ASSERT |
aoqi@1 | 99 | guarantee(thread != V0, "change this code"); |
aoqi@1 | 100 | push(V0); |
aoqi@1 | 101 | { |
aoqi@1 | 102 | Label L; |
aoqi@1 | 103 | get_thread(V0); |
aoqi@1 | 104 | beq(thread, V0, L); |
aoqi@1 | 105 | delayed()->nop(); |
aoqi@1 | 106 | int3(); |
aoqi@1 | 107 | stop("StubAssembler::call_RT: edi not callee saved?"); |
aoqi@1 | 108 | bind(L); |
aoqi@1 | 109 | } |
aoqi@1 | 110 | super_pop(V0); |
aoqi@1 | 111 | #endif |
aoqi@1 | 112 | // discard thread and arguments |
aoqi@1 | 113 | ld_ptr(SP, thread, in_bytes(JavaThread::last_Java_sp_offset())); //by yyq |
aoqi@1 | 114 | //FIXME , in x86 version , the second parameter is false, why true here? @jerome, 12/31, 06 |
aoqi@1 | 115 | // reset_last_Java_frame(thread, true); |
aoqi@1 | 116 | reset_last_Java_frame(thread, true, false); |
aoqi@1 | 117 | // check for pending exceptions |
aoqi@1 | 118 | { |
aoqi@1 | 119 | Label L; |
aoqi@1 | 120 | ld_ptr(AT, thread, in_bytes(Thread::pending_exception_offset())); |
aoqi@1 | 121 | beq(AT, R0, L); |
aoqi@1 | 122 | delayed()->nop(); |
aoqi@1 | 123 | // exception pending => remove activation and forward to exception handler |
aoqi@1 | 124 | // make sure that the vm_results are cleared |
aoqi@1 | 125 | if (oop_result1->is_valid()) { |
aoqi@1 | 126 | st_ptr(R0, thread, in_bytes(JavaThread::vm_result_offset())); |
aoqi@1 | 127 | } |
aoqi@1 | 128 | if (oop_result2->is_valid()) { |
aoqi@1 | 129 | st_ptr(R0, thread, in_bytes(JavaThread::vm_result_2_offset())); |
aoqi@1 | 130 | } |
aoqi@1 | 131 | // the leave() in x86 just pops ebp and remains the return address on the top |
aoqi@1 | 132 | // of stack |
aoqi@1 | 133 | // the return address will be needed by forward_exception_entry() |
aoqi@1 | 134 | if (frame_size() == no_frame_size) { |
aoqi@1 | 135 | addiu(SP, FP, wordSize); |
aoqi@1 | 136 | ld_ptr(FP, SP, (-1) * wordSize); |
aoqi@1 | 137 | jmp(StubRoutines::forward_exception_entry(), relocInfo::runtime_call_type); |
aoqi@1 | 138 | delayed()->nop(); |
aoqi@1 | 139 | } else if (_stub_id == Runtime1::forward_exception_id) { |
aoqi@1 | 140 | should_not_reach_here(); |
aoqi@1 | 141 | } else { |
aoqi@1 | 142 | jmp(Runtime1::entry_for(Runtime1::forward_exception_id), |
aoqi@1 | 143 | relocInfo::runtime_call_type); |
aoqi@1 | 144 | delayed()->nop(); |
aoqi@1 | 145 | } |
aoqi@1 | 146 | bind(L); |
aoqi@1 | 147 | } |
aoqi@1 | 148 | // get oop results if there are any and reset the values in the thread |
aoqi@1 | 149 | if (oop_result1->is_valid()) { |
aoqi@1 | 150 | ld_ptr(oop_result1, thread, in_bytes(JavaThread::vm_result_offset())); |
aoqi@1 | 151 | st_ptr(R0, thread, in_bytes(JavaThread::vm_result_offset())); |
aoqi@1 | 152 | verify_oop(oop_result1); |
aoqi@1 | 153 | } |
aoqi@1 | 154 | if (oop_result2->is_valid()) { |
aoqi@1 | 155 | ld_ptr(oop_result2, thread, in_bytes(JavaThread::vm_result_2_offset())); |
aoqi@1 | 156 | st_ptr(R0, thread, in_bytes(JavaThread::vm_result_2_offset())); |
aoqi@1 | 157 | verify_oop(oop_result2); |
aoqi@1 | 158 | } |
aoqi@1 | 159 | return call_offset; |
aoqi@1 | 160 | } |
aoqi@1 | 161 | |
aoqi@1 | 162 | |
aoqi@1 | 163 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1) { |
aoqi@1 | 164 | if (arg1 != A1) move(A1, arg1); |
aoqi@1 | 165 | return call_RT(oop_result1, oop_result2, entry, 1); |
aoqi@1 | 166 | } |
aoqi@1 | 167 | |
aoqi@1 | 168 | |
aoqi@1 | 169 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2) { |
aoqi@1 | 170 | if (arg1!=A1) move(A1, arg1); |
aoqi@1 | 171 | if (arg2!=A2) move(A2, arg2); assert(arg2 != A1, "smashed argument"); |
aoqi@1 | 172 | return call_RT(oop_result1, oop_result2, entry, 2); |
aoqi@1 | 173 | } |
aoqi@1 | 174 | |
aoqi@1 | 175 | |
aoqi@1 | 176 | int StubAssembler::call_RT(Register oop_result1, Register oop_result2, address entry, Register arg1, Register arg2, Register arg3) { |
aoqi@1 | 177 | if (arg1!=A1) move(A1, arg1); |
aoqi@1 | 178 | if (arg2!=A2) move(A2, arg2); assert(arg2 != A1, "smashed argument"); |
aoqi@1 | 179 | if (arg3!=A3) move(A3, arg3); assert(arg3 != A1 && arg3 != A2, "smashed argument"); |
aoqi@1 | 180 | return call_RT(oop_result1, oop_result2, entry, 3); |
aoqi@1 | 181 | } |
aoqi@1 | 182 | |
aoqi@1 | 183 | |
aoqi@1 | 184 | // Implementation of StubFrame |
aoqi@1 | 185 | |
aoqi@1 | 186 | class StubFrame: public StackObj { |
aoqi@1 | 187 | private: |
aoqi@1 | 188 | StubAssembler* _sasm; |
aoqi@1 | 189 | |
aoqi@1 | 190 | public: |
aoqi@1 | 191 | StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments); |
aoqi@1 | 192 | void load_argument(int offset_in_words, Register reg); |
aoqi@1 | 193 | ~StubFrame(); |
aoqi@1 | 194 | }; |
aoqi@1 | 195 | |
aoqi@1 | 196 | |
aoqi@1 | 197 | #define __ _sasm-> |
aoqi@1 | 198 | |
aoqi@1 | 199 | StubFrame::StubFrame(StubAssembler* sasm, const char* name, bool must_gc_arguments) { |
aoqi@1 | 200 | _sasm = sasm; |
aoqi@1 | 201 | __ set_info(name, must_gc_arguments); |
aoqi@1 | 202 | __ enter(); |
aoqi@1 | 203 | } |
aoqi@1 | 204 | |
aoqi@1 | 205 | |
aoqi@1 | 206 | //FIXME, I have no idea the frame architecture of mips |
aoqi@1 | 207 | // load parameters that were stored with LIR_Assembler::store_parameter |
aoqi@1 | 208 | // // Note: offsets for store_parameter and load_argument must match |
aoqi@1 | 209 | void StubFrame::load_argument(int offset_in_words, Register reg) { |
aoqi@1 | 210 | //ebp + 0: link |
aoqi@1 | 211 | // + 1: return address |
aoqi@1 | 212 | // + 2: argument with offset 0 |
aoqi@1 | 213 | // + 3: argument with offset 1 |
aoqi@1 | 214 | // + 4: ... |
aoqi@1 | 215 | //__ movl(reg, Address(ebp, (offset_in_words + 2) * BytesPerWord)); |
aoqi@1 | 216 | __ ld_ptr(reg, Address(FP, (offset_in_words + 2) * BytesPerWord)); |
aoqi@1 | 217 | } |
aoqi@1 | 218 | StubFrame::~StubFrame() { |
aoqi@1 | 219 | __ leave(); |
aoqi@1 | 220 | __ jr(RA); |
aoqi@1 | 221 | __ delayed()->nop(); |
aoqi@1 | 222 | } |
aoqi@1 | 223 | |
aoqi@1 | 224 | #undef __ |
aoqi@1 | 225 | |
aoqi@1 | 226 | |
aoqi@1 | 227 | // Implementation of Runtime1 |
aoqi@1 | 228 | |
aoqi@1 | 229 | #define __ sasm-> |
aoqi@1 | 230 | |
aoqi@1 | 231 | //static OopMap* save_live_registers(MacroAssembler* sasm, int num_rt_args); |
aoqi@1 | 232 | //static void restore_live_registers(MacroAssembler* sasm); |
aoqi@1 | 233 | //DeoptimizationBlob* SharedRuntime::_deopt_blob = NULL; |
aoqi@1 | 234 | /* |
aoqi@1 | 235 | const int fpu_stack_as_doubles_size_in_words = 16; |
aoqi@1 | 236 | const int fpu_stack_as_doubles_size = 64; |
aoqi@1 | 237 | */ |
aoqi@1 | 238 | const int float_regs_as_doubles_size_in_words = 16; |
aoqi@1 | 239 | |
aoqi@1 | 240 | //FIXME, |
aoqi@1 | 241 | // Stack layout for saving/restoring all the registers needed during a runtime |
aoqi@1 | 242 | // call (this includes deoptimization) |
aoqi@1 | 243 | // Note: note that users of this frame may well have arguments to some runtime |
aoqi@1 | 244 | // while these values are on the stack. These positions neglect those arguments |
aoqi@1 | 245 | // but the code in save_live_registers will take the argument count into |
aoqi@1 | 246 | // account. |
aoqi@1 | 247 | // |
aoqi@1 | 248 | #ifdef _LP64 |
aoqi@1 | 249 | #define SLOT2(x) x, |
aoqi@1 | 250 | #define SLOT_PER_WORD 2 |
aoqi@1 | 251 | #else |
aoqi@1 | 252 | #define SLOT2(x) |
aoqi@1 | 253 | #define SLOT_PER_WORD 1 |
aoqi@1 | 254 | #endif // _LP64 |
aoqi@1 | 255 | |
aoqi@1 | 256 | enum reg_save_layout { |
aoqi@1 | 257 | #ifndef _LP64 |
aoqi@1 | 258 | T0_off = 0, |
aoqi@1 | 259 | S0_off = T0_off + SLOT_PER_WORD * 8, |
aoqi@1 | 260 | #else |
aoqi@1 | 261 | A4_off = 0, |
aoqi@1 | 262 | S0_off = A4_off + SLOT_PER_WORD * 8, |
aoqi@1 | 263 | #endif |
aoqi@1 | 264 | FP_off = S0_off + SLOT_PER_WORD * 8, SLOT2(FPH_off) |
aoqi@1 | 265 | T8_off, SLOT2(T8H_off) |
aoqi@1 | 266 | T9_off, SLOT2(T9H_off) |
aoqi@1 | 267 | SP_off, SLOT2(SPH_off) |
aoqi@1 | 268 | V0_off, SLOT2(V0H_off) |
aoqi@1 | 269 | V1_off, SLOT2(V1H_off) |
aoqi@1 | 270 | A0_off, SLOT2(A0H_off) |
aoqi@1 | 271 | A1_off, SLOT2(A1H_off) |
aoqi@1 | 272 | A2_off, SLOT2(A2H_off) |
aoqi@1 | 273 | A3_off, SLOT2(A3H_off) |
aoqi@1 | 274 | |
aoqi@1 | 275 | // Float registers |
aoqi@1 | 276 | /* FIXME: Jin: In MIPS64, F0~23 are all caller-saved registers */ |
aoqi@1 | 277 | #if 1 |
aoqi@1 | 278 | F0_off, SLOT2( F0H_off) |
aoqi@1 | 279 | F1_off, SLOT2( F1H_off) |
aoqi@1 | 280 | F2_off, SLOT2( F2H_off) |
aoqi@1 | 281 | F3_off, SLOT2( F3H_off) |
aoqi@1 | 282 | F4_off, SLOT2( F4H_off) |
aoqi@1 | 283 | F5_off, SLOT2( F5H_off) |
aoqi@1 | 284 | F6_off, SLOT2( F6H_off) |
aoqi@1 | 285 | F7_off, SLOT2( F7H_off) |
aoqi@1 | 286 | F8_off, SLOT2( F8H_off) |
aoqi@1 | 287 | F9_off, SLOT2( F9H_off) |
aoqi@1 | 288 | F10_off, SLOT2( F10H_off) |
aoqi@1 | 289 | F11_off, SLOT2( F11H_off) |
aoqi@1 | 290 | F12_off, SLOT2( F12H_off) |
aoqi@1 | 291 | F13_off, SLOT2( F13H_off) |
aoqi@1 | 292 | F14_off, SLOT2( F14H_off) |
aoqi@1 | 293 | F15_off, SLOT2( F15H_off) |
aoqi@1 | 294 | F16_off, SLOT2( F16H_off) |
aoqi@1 | 295 | F17_off, SLOT2( F17H_off) |
aoqi@1 | 296 | F18_off, SLOT2( F18H_off) |
aoqi@1 | 297 | F19_off, SLOT2( F19H_off) |
aoqi@1 | 298 | #endif |
aoqi@1 | 299 | |
aoqi@1 | 300 | GP_off, SLOT2( GPH_off) |
aoqi@1 | 301 | //temp_2_off, |
aoqi@1 | 302 | temp_1_off, SLOT2(temp_1H_off) |
aoqi@1 | 303 | saved_fp_off, SLOT2(saved_fpH_off) |
aoqi@1 | 304 | return_off, SLOT2(returnH_off) |
aoqi@1 | 305 | |
aoqi@1 | 306 | reg_save_frame_size, |
aoqi@1 | 307 | |
aoqi@1 | 308 | // illegal instruction handler |
aoqi@1 | 309 | continue_dest_off = temp_1_off, |
aoqi@1 | 310 | |
aoqi@1 | 311 | // deoptimization equates |
aoqi@1 | 312 | //deopt_type = temp_2_off, // slot for type of deopt in progress |
aoqi@1 | 313 | ret_type = temp_1_off // slot for return type |
aoqi@1 | 314 | }; |
aoqi@1 | 315 | |
aoqi@1 | 316 | // Save off registers which might be killed by calls into the runtime. |
aoqi@1 | 317 | // Tries to smart of about FP registers. In particular we separate |
aoqi@1 | 318 | // saving and describing the FPU registers for deoptimization since we |
aoqi@1 | 319 | // have to save the FPU registers twice if we describe them and on P4 |
aoqi@1 | 320 | // saving FPU registers which don't contain anything appears |
aoqi@1 | 321 | // expensive. The deopt blob is the only thing which needs to |
aoqi@1 | 322 | // describe FPU registers. In all other cases it should be sufficient |
aoqi@1 | 323 | // to simply save their current value. |
aoqi@1 | 324 | //FIXME, I have no idea which register should be saved . @jerome |
aoqi@1 | 325 | static OopMap* generate_oop_map(StubAssembler* sasm, int num_rt_args, |
aoqi@1 | 326 | bool save_fpu_registers = true, bool describe_fpu_registers = false) { |
aoqi@1 | 327 | |
aoqi@1 | 328 | /* Jin: num_rt_args is caculated by 8 bytes. */ |
aoqi@1 | 329 | int frame_size_in_slots = reg_save_frame_size + num_rt_args * wordSize / SLOT_PER_WORD; // args + thread |
aoqi@1 | 330 | sasm->set_frame_size(frame_size_in_slots / SLOT_PER_WORD); |
aoqi@1 | 331 | |
aoqi@1 | 332 | // record saved value locations in an OopMap |
aoqi@1 | 333 | // locations are offsets from sp after runtime call; num_rt_args is number of arguments |
aoqi@1 | 334 | // in call, including thread |
aoqi@1 | 335 | OopMap* map = new OopMap(reg_save_frame_size, 0); |
aoqi@1 | 336 | |
aoqi@1 | 337 | map->set_callee_saved(VMRegImpl::stack2reg(V0_off + num_rt_args), V0->as_VMReg()); |
aoqi@1 | 338 | map->set_callee_saved(VMRegImpl::stack2reg(V1_off + num_rt_args), V1->as_VMReg()); |
aoqi@1 | 339 | #ifdef _LP64 |
aoqi@1 | 340 | map->set_callee_saved(VMRegImpl::stack2reg(V0H_off + num_rt_args), V0->as_VMReg()->next()); |
aoqi@1 | 341 | map->set_callee_saved(VMRegImpl::stack2reg(V1H_off + num_rt_args), V1->as_VMReg()->next()); |
aoqi@1 | 342 | #endif |
aoqi@1 | 343 | |
aoqi@1 | 344 | int i = 0; |
aoqi@1 | 345 | #ifndef _LP64 |
aoqi@1 | 346 | for (Register r = T0; r != T7->successor(); r = r->successor() ) { |
aoqi@1 | 347 | map->set_callee_saved(VMRegImpl::stack2reg(T0_off + num_rt_args + i++), r->as_VMReg()); |
aoqi@1 | 348 | } |
aoqi@1 | 349 | #else |
aoqi@1 | 350 | for (Register r = A4; r != T3->successor(); r = r->successor() ) { |
aoqi@1 | 351 | map->set_callee_saved(VMRegImpl::stack2reg(A4_off + num_rt_args + i++), r->as_VMReg()); |
aoqi@1 | 352 | map->set_callee_saved(VMRegImpl::stack2reg(A4_off + num_rt_args + i++), r->as_VMReg()->next()); |
aoqi@1 | 353 | } |
aoqi@1 | 354 | #endif |
aoqi@1 | 355 | |
aoqi@1 | 356 | i = 0; |
aoqi@1 | 357 | for (Register r = S0; r != S7->successor(); r = r->successor() ) { |
aoqi@1 | 358 | map->set_callee_saved(VMRegImpl::stack2reg(S0_off + num_rt_args + i++), r->as_VMReg()); |
aoqi@1 | 359 | #ifdef _LP64 |
aoqi@1 | 360 | map->set_callee_saved(VMRegImpl::stack2reg(S0_off + num_rt_args + i++), r->as_VMReg()->next()); |
aoqi@1 | 361 | #endif |
aoqi@1 | 362 | } |
aoqi@1 | 363 | |
aoqi@1 | 364 | map->set_callee_saved(VMRegImpl::stack2reg(FP_off + num_rt_args), FP->as_VMReg()); |
aoqi@1 | 365 | map->set_callee_saved(VMRegImpl::stack2reg(GP_off + num_rt_args), GP->as_VMReg()); |
aoqi@1 | 366 | map->set_callee_saved(VMRegImpl::stack2reg(T8_off + num_rt_args), T8->as_VMReg()); |
aoqi@1 | 367 | map->set_callee_saved(VMRegImpl::stack2reg(T9_off + num_rt_args), T9->as_VMReg()); |
aoqi@1 | 368 | map->set_callee_saved(VMRegImpl::stack2reg(A0_off + num_rt_args), A0->as_VMReg()); |
aoqi@1 | 369 | map->set_callee_saved(VMRegImpl::stack2reg(A1_off + num_rt_args), A1->as_VMReg()); |
aoqi@1 | 370 | map->set_callee_saved(VMRegImpl::stack2reg(A2_off + num_rt_args), A2->as_VMReg()); |
aoqi@1 | 371 | map->set_callee_saved(VMRegImpl::stack2reg(A3_off + num_rt_args), A3->as_VMReg()); |
aoqi@1 | 372 | |
aoqi@1 | 373 | #if 1 |
aoqi@1 | 374 | map->set_callee_saved(VMRegImpl::stack2reg(F0_off + num_rt_args), F0->as_VMReg()); |
aoqi@1 | 375 | map->set_callee_saved(VMRegImpl::stack2reg(F1_off + num_rt_args), F1->as_VMReg()); |
aoqi@1 | 376 | map->set_callee_saved(VMRegImpl::stack2reg(F2_off + num_rt_args), F2->as_VMReg()); |
aoqi@1 | 377 | map->set_callee_saved(VMRegImpl::stack2reg(F3_off + num_rt_args), F1->as_VMReg()); |
aoqi@1 | 378 | map->set_callee_saved(VMRegImpl::stack2reg(F4_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 379 | map->set_callee_saved(VMRegImpl::stack2reg(F5_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 380 | map->set_callee_saved(VMRegImpl::stack2reg(F6_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 381 | map->set_callee_saved(VMRegImpl::stack2reg(F7_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 382 | map->set_callee_saved(VMRegImpl::stack2reg(F8_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 383 | map->set_callee_saved(VMRegImpl::stack2reg(F9_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 384 | map->set_callee_saved(VMRegImpl::stack2reg(F10_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 385 | map->set_callee_saved(VMRegImpl::stack2reg(F11_off + num_rt_args), F4->as_VMReg()); |
aoqi@1 | 386 | map->set_callee_saved(VMRegImpl::stack2reg(F12_off + num_rt_args), F12->as_VMReg()); |
aoqi@1 | 387 | map->set_callee_saved(VMRegImpl::stack2reg(F13_off + num_rt_args), F13->as_VMReg()); |
aoqi@1 | 388 | map->set_callee_saved(VMRegImpl::stack2reg(F14_off + num_rt_args), F14->as_VMReg()); |
aoqi@1 | 389 | map->set_callee_saved(VMRegImpl::stack2reg(F15_off + num_rt_args), F15->as_VMReg()); |
aoqi@1 | 390 | map->set_callee_saved(VMRegImpl::stack2reg(F16_off + num_rt_args), F16->as_VMReg()); |
aoqi@1 | 391 | map->set_callee_saved(VMRegImpl::stack2reg(F17_off + num_rt_args), F17->as_VMReg()); |
aoqi@1 | 392 | map->set_callee_saved(VMRegImpl::stack2reg(F18_off + num_rt_args), F18->as_VMReg()); |
aoqi@1 | 393 | map->set_callee_saved(VMRegImpl::stack2reg(F19_off + num_rt_args), F19->as_VMReg()); |
aoqi@1 | 394 | #endif |
aoqi@1 | 395 | |
aoqi@1 | 396 | #ifdef _LP64 |
aoqi@1 | 397 | map->set_callee_saved(VMRegImpl::stack2reg(FPH_off + num_rt_args), FP->as_VMReg()->next()); |
aoqi@1 | 398 | map->set_callee_saved(VMRegImpl::stack2reg(GPH_off + num_rt_args), GP->as_VMReg()->next()); |
aoqi@1 | 399 | map->set_callee_saved(VMRegImpl::stack2reg(T8H_off + num_rt_args), T8->as_VMReg()->next()); |
aoqi@1 | 400 | map->set_callee_saved(VMRegImpl::stack2reg(T9H_off + num_rt_args), T9->as_VMReg()->next()); |
aoqi@1 | 401 | map->set_callee_saved(VMRegImpl::stack2reg(A0H_off + num_rt_args), A0->as_VMReg()->next()); |
aoqi@1 | 402 | map->set_callee_saved(VMRegImpl::stack2reg(A1H_off + num_rt_args), A1->as_VMReg()->next()); |
aoqi@1 | 403 | map->set_callee_saved(VMRegImpl::stack2reg(A2H_off + num_rt_args), A2->as_VMReg()->next()); |
aoqi@1 | 404 | map->set_callee_saved(VMRegImpl::stack2reg(A3H_off + num_rt_args), A3->as_VMReg()->next()); |
aoqi@1 | 405 | #endif |
aoqi@1 | 406 | return map; |
aoqi@1 | 407 | } |
aoqi@1 | 408 | |
aoqi@1 | 409 | //FIXME, Is it enough to save this registers by yyq |
aoqi@1 | 410 | static OopMap* save_live_registers(StubAssembler* sasm, |
aoqi@1 | 411 | int num_rt_args, |
aoqi@1 | 412 | bool save_fpu_registers = true, |
aoqi@1 | 413 | bool describe_fpu_registers = false) { |
aoqi@1 | 414 | //const int reg_save_frame_size = return_off + 1 + num_rt_args; |
aoqi@1 | 415 | __ block_comment("save_live_registers"); |
aoqi@1 | 416 | |
aoqi@1 | 417 | // save all register state - int, fpu |
aoqi@1 | 418 | __ addi(SP, SP, -(reg_save_frame_size / SLOT_PER_WORD - 2)* wordSize); |
aoqi@1 | 419 | |
aoqi@1 | 420 | #ifndef _LP64 |
aoqi@1 | 421 | for (Register r = T0; r != T7->successor(); r = r->successor() ) { |
aoqi@1 | 422 | __ sw(r, SP, (r->encoding() - T0->encoding() + T0_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 423 | #else |
aoqi@1 | 424 | for (Register r = A4; r != T3->successor(); r = r->successor() ) { |
aoqi@1 | 425 | __ sd(r, SP, (r->encoding() - A4->encoding() + A4_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 426 | #endif |
aoqi@1 | 427 | } |
aoqi@1 | 428 | for (Register r = S0; r != S7->successor(); r = r->successor() ) { |
aoqi@1 | 429 | __ st_ptr(r, SP, (r->encoding() - S0->encoding() + S0_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 430 | } |
aoqi@1 | 431 | __ st_ptr(FP, SP, FP_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 432 | __ st_ptr(GP, SP, GP_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 433 | __ st_ptr(T8, SP, T8_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 434 | __ st_ptr(T9, SP, T9_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 435 | __ st_ptr(A0, SP, A0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 436 | __ st_ptr(A1, SP, A1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 437 | __ st_ptr(A2, SP, A2_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 438 | __ st_ptr(A3, SP, A3_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 439 | __ st_ptr(V0, SP, V0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 440 | __ st_ptr(V1, SP, V1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 441 | |
aoqi@1 | 442 | #if 1 |
aoqi@1 | 443 | __ sdc1(F0, SP, F0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 444 | __ sdc1(F1, SP, F1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 445 | __ sdc1(F2, SP, F2_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 446 | __ sdc1(F3, SP, F3_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 447 | __ sdc1(F4, SP, F4_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 448 | __ sdc1(F5, SP, F5_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 449 | __ sdc1(F6, SP, F6_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 450 | __ sdc1(F7, SP, F7_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 451 | __ sdc1(F8, SP, F8_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 452 | __ sdc1(F9, SP, F9_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 453 | __ sdc1(F10, SP, F10_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 454 | __ sdc1(F11, SP, F11_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 455 | __ sdc1(F12, SP, F12_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 456 | __ sdc1(F13, SP, F13_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 457 | __ sdc1(F14, SP, F14_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 458 | __ sdc1(F15, SP, F15_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 459 | __ sdc1(F16, SP, F16_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 460 | __ sdc1(F17, SP, F17_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 461 | __ sdc1(F18, SP, F18_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 462 | __ sdc1(F19, SP, F19_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 463 | #endif |
aoqi@1 | 464 | |
aoqi@1 | 465 | return generate_oop_map(sasm, num_rt_args, save_fpu_registers, describe_fpu_registers); |
aoqi@1 | 466 | } |
aoqi@1 | 467 | |
aoqi@1 | 468 | static void restore_fpu(StubAssembler* sasm, bool restore_fpu_registers = true) { |
aoqi@1 | 469 | //static void restore_live_registers(MacroAssembler* sasm) { |
aoqi@1 | 470 | #ifndef _LP64 |
aoqi@1 | 471 | for (Register r = T0; r != T7->successor(); r = r->successor() ) { |
aoqi@1 | 472 | __ lw(r, SP, (r->encoding() - T0->encoding() + T0_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 473 | #else |
aoqi@1 | 474 | for (Register r = A4; r != T3->successor(); r = r->successor() ) { |
aoqi@1 | 475 | __ ld(r, SP, (r->encoding() - A4->encoding() + A4_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 476 | #endif |
aoqi@1 | 477 | } |
aoqi@1 | 478 | for (Register r = S0; r != S7->successor(); r = r->successor() ) { |
aoqi@1 | 479 | __ ld_ptr(r, SP, (r->encoding() - S0->encoding() + S0_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 480 | } |
aoqi@1 | 481 | __ ld_ptr(FP, SP, FP_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 482 | __ ld_ptr(GP, SP, GP_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 483 | |
aoqi@1 | 484 | __ ld_ptr(T8, SP, T8_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 485 | __ ld_ptr(T9, SP, T9_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 486 | __ ld_ptr(A0, SP, A0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 487 | __ ld_ptr(A1, SP, A1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 488 | __ ld_ptr(A2, SP, A2_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 489 | __ ld_ptr(A3, SP, A3_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 490 | |
aoqi@1 | 491 | __ ld_ptr(V0, SP, V0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 492 | __ ld_ptr(V1, SP, V1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 493 | |
aoqi@1 | 494 | #if 1 |
aoqi@1 | 495 | __ ldc1(F0, SP, F0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 496 | __ ldc1(F1, SP, F1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 497 | __ ldc1(F2, SP, F2_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 498 | __ ldc1(F3, SP, F3_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 499 | __ ldc1(F4, SP, F4_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 500 | __ ldc1(F5, SP, F5_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 501 | __ ldc1(F6, SP, F6_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 502 | __ ldc1(F7, SP, F7_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 503 | __ ldc1(F8, SP, F8_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 504 | __ ldc1(F9, SP, F9_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 505 | __ ldc1(F10, SP, F10_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 506 | __ ldc1(F11, SP, F11_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 507 | __ ldc1(F12, SP, F12_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 508 | __ ldc1(F13, SP, F13_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 509 | __ ldc1(F14, SP, F14_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 510 | __ ldc1(F15, SP, F15_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 511 | __ ldc1(F16, SP, F16_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 512 | __ ldc1(F17, SP, F17_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 513 | __ ldc1(F18, SP, F18_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 514 | __ ldc1(F19, SP, F19_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 515 | #endif |
aoqi@1 | 516 | |
aoqi@1 | 517 | __ addiu(SP, SP, (reg_save_frame_size / SLOT_PER_WORD - 2) * wordSize); |
aoqi@1 | 518 | } |
aoqi@1 | 519 | |
aoqi@1 | 520 | static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true) { |
aoqi@1 | 521 | __ block_comment("restore_live_registers"); |
aoqi@1 | 522 | restore_fpu(sasm, restore_fpu_registers); |
aoqi@1 | 523 | } |
aoqi@1 | 524 | |
aoqi@1 | 525 | static void restore_live_registers_except_V0(StubAssembler* sasm, bool restore_fpu_registers = true) { |
aoqi@1 | 526 | //static void restore_live_registers(MacroAssembler* sasm) { |
aoqi@1 | 527 | //FIXME , maybe V1 need to be saved too |
aoqi@1 | 528 | __ block_comment("restore_live_registers except V0"); |
aoqi@1 | 529 | #ifndef _LP64 |
aoqi@1 | 530 | for (Register r = T0; r != T7->successor(); r = r->successor() ) { |
aoqi@1 | 531 | __ lw(r, SP, (r->encoding() - T0->encoding() + T0_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 532 | #else |
aoqi@1 | 533 | for (Register r = A4; r != T3->successor(); r = r->successor() ) { |
aoqi@1 | 534 | __ ld(r, SP, (r->encoding() - A4->encoding() + A4_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 535 | #endif |
aoqi@1 | 536 | } |
aoqi@1 | 537 | for (Register r = S0; r != S7->successor(); r = r->successor() ) { |
aoqi@1 | 538 | __ ld_ptr(r, SP, (r->encoding() - S0->encoding() + S0_off / SLOT_PER_WORD) * wordSize); |
aoqi@1 | 539 | } |
aoqi@1 | 540 | __ ld_ptr(FP, SP, FP_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 541 | __ ld_ptr(GP, SP, GP_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 542 | |
aoqi@1 | 543 | __ ld_ptr(T8, SP, T8_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 544 | __ ld_ptr(T9, SP, T9_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 545 | __ ld_ptr(A0, SP, A0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 546 | __ ld_ptr(A1, SP, A1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 547 | __ ld_ptr(A2, SP, A2_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 548 | __ ld_ptr(A3, SP, A3_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 549 | |
aoqi@1 | 550 | #if 1 |
aoqi@1 | 551 | __ ldc1(F0, SP, F0_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 552 | __ ldc1(F1, SP, F1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 553 | __ ldc1(F2, SP, F2_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 554 | __ ldc1(F3, SP, F3_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 555 | __ ldc1(F4, SP, F4_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 556 | __ ldc1(F5, SP, F5_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 557 | __ ldc1(F6, SP, F6_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 558 | __ ldc1(F7, SP, F7_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 559 | __ ldc1(F8, SP, F8_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 560 | __ ldc1(F9, SP, F9_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 561 | __ ldc1(F10, SP, F10_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 562 | __ ldc1(F11, SP, F11_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 563 | __ ldc1(F12, SP, F12_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 564 | __ ldc1(F13, SP, F13_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 565 | __ ldc1(F14, SP, F14_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 566 | __ ldc1(F15, SP, F15_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 567 | __ ldc1(F16, SP, F16_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 568 | __ ldc1(F17, SP, F17_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 569 | __ ldc1(F18, SP, F18_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 570 | __ ldc1(F19, SP, F19_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 571 | #endif |
aoqi@1 | 572 | |
aoqi@1 | 573 | __ ld_ptr(V1, SP, V1_off * wordSize / SLOT_PER_WORD); |
aoqi@1 | 574 | |
aoqi@1 | 575 | __ addiu(SP, SP, (reg_save_frame_size / SLOT_PER_WORD - 2) * wordSize); |
aoqi@1 | 576 | } |
aoqi@1 | 577 | |
aoqi@1 | 578 | void Runtime1::initialize_pd() { |
aoqi@1 | 579 | // nothing to do |
aoqi@1 | 580 | } |
aoqi@1 | 581 | |
aoqi@1 | 582 | // target: the entry point of the method that creates and posts the exception oop |
aoqi@1 | 583 | // has_argument: true if the exception needs an argument (passed on stack because registers must be preserved) |
aoqi@1 | 584 | OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) { |
aoqi@1 | 585 | // preserve all registers |
aoqi@1 | 586 | OopMap* oop_map = save_live_registers(sasm, 0); |
aoqi@1 | 587 | |
aoqi@1 | 588 | // now all registers are saved and can be used freely |
aoqi@1 | 589 | // verify that no old value is used accidentally |
aoqi@1 | 590 | //all reigster are saved , I think mips do not need this |
aoqi@1 | 591 | |
aoqi@1 | 592 | // registers used by this stub |
aoqi@1 | 593 | const Register temp_reg = T3; |
aoqi@1 | 594 | // load argument for exception that is passed as an argument into the stub |
aoqi@1 | 595 | if (has_argument) { |
aoqi@1 | 596 | __ ld_ptr(temp_reg, Address(FP, 2*BytesPerWord)); |
aoqi@1 | 597 | } |
aoqi@1 | 598 | int call_offset; |
aoqi@1 | 599 | if (has_argument) |
aoqi@1 | 600 | call_offset = __ call_RT(noreg, noreg, target, temp_reg); |
aoqi@1 | 601 | else |
aoqi@1 | 602 | call_offset = __ call_RT(noreg, noreg, target); |
aoqi@1 | 603 | |
aoqi@1 | 604 | OopMapSet* oop_maps = new OopMapSet(); |
aoqi@1 | 605 | oop_maps->add_gc_map(call_offset, oop_map); |
aoqi@1 | 606 | |
aoqi@1 | 607 | __ stop("should not reach here"); |
aoqi@1 | 608 | |
aoqi@1 | 609 | return oop_maps; |
aoqi@1 | 610 | } |
aoqi@1 | 611 | |
aoqi@1 | 612 | //FIXME I do not know which reigster to use.should use T3 as real_return_addr @jerome |
aoqi@1 | 613 | OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler *sasm) { |
aoqi@1 | 614 | __ block_comment("generate_handle_exception"); |
aoqi@1 | 615 | // incoming parameters |
aoqi@1 | 616 | const Register exception_oop = V0; |
aoqi@1 | 617 | const Register exception_pc = V1; |
aoqi@1 | 618 | // other registers used in this stub |
aoqi@1 | 619 | // const Register real_return_addr = T3; |
aoqi@1 | 620 | const Register thread = T8; |
aoqi@1 | 621 | // Save registers, if required. |
aoqi@1 | 622 | OopMapSet* oop_maps = new OopMapSet(); |
aoqi@1 | 623 | OopMap* oop_map = NULL; |
aoqi@1 | 624 | switch (id) { |
aoqi@1 | 625 | case forward_exception_id: |
aoqi@1 | 626 | // We're handling an exception in the context of a compiled frame. |
aoqi@1 | 627 | // The registers have been saved in the standard places. Perform |
aoqi@1 | 628 | // an exception lookup in the caller and dispatch to the handler |
aoqi@1 | 629 | // if found. Otherwise unwind and dispatch to the callers |
aoqi@1 | 630 | // exception handler. |
aoqi@1 | 631 | oop_map = generate_oop_map(sasm, 1 /*thread*/); |
aoqi@1 | 632 | |
aoqi@1 | 633 | // load and clear pending exception oop into RAX |
aoqi@1 | 634 | __ ld(exception_oop, Address(thread, Thread::pending_exception_offset())); |
aoqi@1 | 635 | __ sw(R0,Address(thread, Thread::pending_exception_offset())); |
aoqi@1 | 636 | |
aoqi@1 | 637 | // load issuing PC (the return address for this stub) into rdx |
aoqi@1 | 638 | __ ld(exception_pc, Address(FP, 1*BytesPerWord)); |
aoqi@1 | 639 | |
aoqi@1 | 640 | // make sure that the vm_results are cleared (may be unnecessary) |
aoqi@1 | 641 | __ sw(R0,Address(thread, JavaThread::vm_result_offset())); |
aoqi@1 | 642 | __ sw(R0,Address(thread, JavaThread::vm_result_2_offset())); |
aoqi@1 | 643 | break; |
aoqi@1 | 644 | case handle_exception_nofpu_id: |
aoqi@1 | 645 | case handle_exception_id: |
aoqi@1 | 646 | // At this point all registers MAY be live. |
aoqi@1 | 647 | oop_map = save_live_registers(sasm, 1 /*thread*/, id == handle_exception_nofpu_id); |
aoqi@1 | 648 | break; |
aoqi@1 | 649 | case handle_exception_from_callee_id: { |
aoqi@1 | 650 | // At this point all registers except exception oop (RAX) and |
aoqi@1 | 651 | // exception pc (RDX) are dead. |
aoqi@1 | 652 | const int frame_size = 2 /*BP, return address*/ NOT_LP64(+ 1 /*thread*/) WIN64_ONLY(+ frame::arg_reg_save_area_by tes / BytesPerWord); |
aoqi@1 | 653 | oop_map = new OopMap(frame_size * VMRegImpl::slots_per_word, 0); |
aoqi@1 | 654 | sasm->set_frame_size(frame_size); |
aoqi@1 | 655 | WIN64_ONLY(__ subq(rsp, frame::arg_reg_save_area_bytes)); |
aoqi@1 | 656 | break; |
aoqi@1 | 657 | } |
aoqi@1 | 658 | default: ShouldNotReachHere(); |
aoqi@1 | 659 | } |
aoqi@1 | 660 | |
aoqi@1 | 661 | #ifdef TIERED |
aoqi@1 | 662 | // C2 can leave the fpu stack dirty |
aoqi@1 | 663 | __ empty_FPU_stack(); |
aoqi@1 | 664 | //} |
aoqi@1 | 665 | #endif // TIERED |
aoqi@1 | 666 | |
aoqi@1 | 667 | // verify that only V0 and V1 is valid at this time |
aoqi@1 | 668 | // verify that V0 contains a valid exception |
aoqi@1 | 669 | __ verify_not_null_oop(exception_oop); |
aoqi@1 | 670 | |
aoqi@1 | 671 | // load address of JavaThread object for thread-local data |
aoqi@1 | 672 | __ get_thread(thread); |
aoqi@1 | 673 | |
aoqi@1 | 674 | #ifdef ASSERT |
aoqi@1 | 675 | // check that fields in JavaThread for exception oop and issuing pc are |
aoqi@1 | 676 | // empty before writing to them |
aoqi@1 | 677 | Label oop_empty; |
aoqi@1 | 678 | __ ld_ptr(AT, Address(thread, in_bytes(JavaThread::exception_oop_offset()))); |
aoqi@1 | 679 | __ beq(AT, R0, oop_empty); |
aoqi@1 | 680 | __ delayed()->nop(); |
aoqi@1 | 681 | __ stop("exception oop already set"); |
aoqi@1 | 682 | __ bind(oop_empty); |
aoqi@1 | 683 | Label pc_empty; |
aoqi@1 | 684 | __ ld_ptr(AT, Address(thread, in_bytes(JavaThread::exception_pc_offset()))); |
aoqi@1 | 685 | __ beq(AT, R0, pc_empty); |
aoqi@1 | 686 | __ delayed()->nop(); |
aoqi@1 | 687 | __ stop("exception pc already set"); |
aoqi@1 | 688 | __ bind(pc_empty); |
aoqi@1 | 689 | #endif |
aoqi@1 | 690 | |
aoqi@1 | 691 | // save exception oop and issuing pc into JavaThread |
aoqi@1 | 692 | // (exception handler will load it from here) |
aoqi@1 | 693 | __ st_ptr(exception_oop, Address(thread, in_bytes(JavaThread::exception_oop_offset()))); |
aoqi@1 | 694 | __ st_ptr(exception_pc, Address(thread, in_bytes(JavaThread::exception_pc_offset()))); |
aoqi@1 | 695 | |
aoqi@1 | 696 | // save real return address (pc that called this stub) |
aoqi@1 | 697 | // __ ld_ptr(real_return_addr, FP, 1*BytesPerWord); |
aoqi@1 | 698 | // __ st_ptr(real_return_addr, SP, temp_1_off * BytesPerWord / SLOT_PER_WORD); |
aoqi@1 | 699 | |
aoqi@1 | 700 | // patch throwing pc into return address (has bci & oop map) |
aoqi@1 | 701 | __ st_ptr(exception_pc, FP, 1*BytesPerWord); |
aoqi@1 | 702 | // compute the exception handler. |
aoqi@1 | 703 | // the exception oop and the throwing pc are read from the fields in JavaThread |
aoqi@1 | 704 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, |
aoqi@1 | 705 | exception_handler_for_pc)); |
aoqi@1 | 706 | oop_maps->add_gc_map(call_offset, oop_map); |
aoqi@1 | 707 | // V0: handler address or NULL if no handler exists |
aoqi@1 | 708 | // will be the deopt blob if nmethod was deoptimized while we looked up |
aoqi@1 | 709 | // handler regardless of whether handler existed in the nmethod. |
aoqi@1 | 710 | |
aoqi@1 | 711 | // only V0 is valid at this time, all other registers have been destroyed by the |
aoqi@1 | 712 | // runtime call |
aoqi@1 | 713 | |
aoqi@1 | 714 | // Do we have an exception handler in the nmethod? |
aoqi@1 | 715 | /*Label no_handler; |
aoqi@1 | 716 | Label done; |
aoqi@1 | 717 | __ beq(V0, R0, no_handler); |
aoqi@1 | 718 | __ delayed()->nop(); */ |
aoqi@1 | 719 | // exception handler found |
aoqi@1 | 720 | // patch the return address -> the stub will directly return to the exception handler |
aoqi@1 | 721 | __ st_ptr(V0, FP, 1 * BytesPerWord); |
aoqi@1 | 722 | |
aoqi@1 | 723 | // restore registers |
aoqi@1 | 724 | // restore_live_registers(sasm, save_fpu_registers); |
aoqi@1 | 725 | |
aoqi@1 | 726 | // return to exception handler |
aoqi@1 | 727 | // __ leave(); |
aoqi@1 | 728 | // __ jr(RA); |
aoqi@1 | 729 | // __ delayed()->nop(); |
aoqi@1 | 730 | // __ bind(no_handler); |
aoqi@1 | 731 | // no exception handler found in this method, so the exception is |
aoqi@1 | 732 | // forwarded to the caller (using the unwind code of the nmethod) |
aoqi@1 | 733 | // there is no need to restore the registers |
aoqi@1 | 734 | |
aoqi@1 | 735 | // restore the real return address that was saved before the RT-call |
aoqi@1 | 736 | // __ ld_ptr(real_return_addr, SP, temp_1_off * BytesPerWord / SLOT_PER_WORD); |
aoqi@1 | 737 | // __ st_ptr(real_return_addr, FP, 1 * BytesPerWord); |
aoqi@1 | 738 | // load address of JavaThread object for thread-local data |
aoqi@1 | 739 | // __ get_thread(thread); |
aoqi@1 | 740 | // restore exception oop into eax (convention for unwind code) |
aoqi@1 | 741 | // __ ld_ptr(exception_oop, thread, in_bytes(JavaThread::exception_oop_offset())); |
aoqi@1 | 742 | |
aoqi@1 | 743 | // clear exception fields in JavaThread because they are no longer needed |
aoqi@1 | 744 | // (fields must be cleared because they are processed by GC otherwise) |
aoqi@1 | 745 | // __ st_ptr(R0, thread, in_bytes(JavaThread::exception_oop_offset())); |
aoqi@1 | 746 | // __ st_ptr(R0,thread, in_bytes(JavaThread::exception_pc_offset())); |
aoqi@1 | 747 | // pop the stub frame off |
aoqi@1 | 748 | // __ leave(); |
aoqi@1 | 749 | // generate_unwind_exception(sasm); |
aoqi@1 | 750 | // __ stop("should not reach here"); |
aoqi@1 | 751 | //} |
aoqi@1 | 752 | switch (id) { |
aoqi@1 | 753 | case forward_exception_id: |
aoqi@1 | 754 | case handle_exception_nofpu_id: |
aoqi@1 | 755 | case handle_exception_id: |
aoqi@1 | 756 | // Restore the registers that were saved at the beginning. |
aoqi@1 | 757 | restore_live_registers(sasm, id == handle_exception_nofpu_id); |
aoqi@1 | 758 | break; |
aoqi@1 | 759 | case handle_exception_from_callee_id: |
aoqi@1 | 760 | // WIN64_ONLY: No need to add frame::arg_reg_save_area_bytes to SP |
aoqi@1 | 761 | // since we do a leave anyway. |
aoqi@1 | 762 | |
aoqi@1 | 763 | // Pop the return address since we are possibly changing SP (restoring from BP). |
aoqi@1 | 764 | __ leave(); |
aoqi@1 | 765 | // Restore SP from BP if the exception PC is a method handle call site. |
aoqi@1 | 766 | NOT_LP64(__ get_thread(thread);) |
aoqi@1 | 767 | /*__ ld(AT, Address(thread, JavaThread::is_method_handle_return_offset())); |
aoqi@1 | 768 | __ beq(AT, R0, done); |
aoqi@1 | 769 | __ move(SP, rbp_mh_SP_save); |
aoqi@1 | 770 | __ bind(done); |
aoqi@1 | 771 | __ jr(RA); // jump to exception handler |
aoqi@1 | 772 | __ delayed()->nop();*/ |
aoqi@1 | 773 | // 759 __ cmpl(Address(thread, JavaThread::is_method_handle_return_offset()), 0); |
aoqi@1 | 774 | // 760 __ cmovptr(Assembler::notEqual, rsp, rbp_mh_SP_save); |
aoqi@1 | 775 | // 761 __ jmp(rcx); // jump to exception handler |
aoqi@1 | 776 | |
aoqi@1 | 777 | break; |
aoqi@1 | 778 | default: ShouldNotReachHere(); |
aoqi@1 | 779 | } |
aoqi@1 | 780 | |
aoqi@1 | 781 | return oop_maps; |
aoqi@1 | 782 | } |
aoqi@1 | 783 | |
aoqi@1 | 784 | |
aoqi@1 | 785 | |
aoqi@1 | 786 | |
aoqi@1 | 787 | |
aoqi@1 | 788 | void Runtime1::generate_unwind_exception(StubAssembler *sasm) { |
aoqi@1 | 789 | // incoming parameters |
aoqi@1 | 790 | const Register exception_oop = V0; |
aoqi@1 | 791 | // other registers used in this stub |
aoqi@1 | 792 | const Register exception_pc = V1; |
aoqi@1 | 793 | const Register handler_addr = T3; |
aoqi@1 | 794 | const Register thread = T8; |
aoqi@1 | 795 | |
aoqi@1 | 796 | // verify that only eax is valid at this time |
aoqi@1 | 797 | // __ invalidate_registers(false, true, true, true, true, true); |
aoqi@1 | 798 | |
aoqi@1 | 799 | #ifdef ASSERT |
aoqi@1 | 800 | // check that fields in JavaThread for exception oop and issuing pc are empty |
aoqi@1 | 801 | __ get_thread(thread); |
aoqi@1 | 802 | Label oop_empty; |
aoqi@1 | 803 | __ ld_ptr(AT, thread, in_bytes(JavaThread::exception_oop_offset())); |
aoqi@1 | 804 | __ beq(AT, R0, oop_empty); |
aoqi@1 | 805 | __ delayed()->nop(); |
aoqi@1 | 806 | __ stop("exception oop must be empty"); |
aoqi@1 | 807 | __ bind(oop_empty); |
aoqi@1 | 808 | |
aoqi@1 | 809 | Label pc_empty; |
aoqi@1 | 810 | __ ld_ptr(AT, thread, in_bytes(JavaThread::exception_pc_offset())); |
aoqi@1 | 811 | __ beq(AT,R0, pc_empty); |
aoqi@1 | 812 | __ delayed()->nop(); |
aoqi@1 | 813 | __ stop("exception pc must be empty"); |
aoqi@1 | 814 | __ bind(pc_empty); |
aoqi@1 | 815 | #endif |
aoqi@1 | 816 | // clear the FPU stack in case any FPU results are left behind |
aoqi@1 | 817 | __ empty_FPU_stack(); |
aoqi@1 | 818 | |
aoqi@1 | 819 | // leave activation of nmethod |
aoqi@1 | 820 | __ addi(SP, FP, wordSize); |
aoqi@1 | 821 | __ ld_ptr(FP, SP, - wordSize); |
aoqi@1 | 822 | // store return address (is on top of stack after leave) |
aoqi@1 | 823 | __ ld_ptr(exception_pc, SP, 0); |
aoqi@1 | 824 | __ verify_oop(exception_oop); |
aoqi@1 | 825 | |
aoqi@1 | 826 | // save exception oop from eax to stack before call |
aoqi@1 | 827 | __ push(exception_oop); |
aoqi@1 | 828 | // search the exception handler address of the caller (using the return address) |
aoqi@1 | 829 | __ call_VM_leaf(CAST_FROM_FN_PTR(address, |
aoqi@1 | 830 | SharedRuntime::exception_handler_for_return_address), exception_pc); |
aoqi@1 | 831 | // eax: exception handler address of the caller |
aoqi@1 | 832 | |
aoqi@1 | 833 | // only eax is valid at this time, all other registers have been destroyed by the call |
aoqi@1 | 834 | |
aoqi@1 | 835 | // move result of call into correct register |
aoqi@1 | 836 | __ move(handler_addr, V0); |
aoqi@1 | 837 | // restore exception oop in eax (required convention of exception handler) |
aoqi@1 | 838 | __ super_pop(exception_oop); |
aoqi@1 | 839 | |
aoqi@1 | 840 | __ verify_oop(exception_oop); |
aoqi@1 | 841 | |
aoqi@1 | 842 | // get throwing pc (= return address). |
aoqi@1 | 843 | // edx has been destroyed by the call, so it must be set again |
aoqi@1 | 844 | // the pop is also necessary to simulate the effect of a ret(0) |
aoqi@1 | 845 | __ super_pop(exception_pc); |
aoqi@1 | 846 | // verify that that there is really a valid exception in eax |
aoqi@1 | 847 | __ verify_not_null_oop(exception_oop); |
aoqi@1 | 848 | |
aoqi@1 | 849 | // continue at exception handler (return address removed) |
aoqi@1 | 850 | // note: do *not* remove arguments when unwinding the |
aoqi@1 | 851 | // activation since the caller assumes having |
aoqi@1 | 852 | // all arguments on the stack when entering the |
aoqi@1 | 853 | // runtime to determine the exception handler |
aoqi@1 | 854 | // (GC happens at call site with arguments!) |
aoqi@1 | 855 | // eax: exception oop |
aoqi@1 | 856 | // edx: throwing pc |
aoqi@1 | 857 | // ebx: exception handler |
aoqi@1 | 858 | __ jr(handler_addr); |
aoqi@1 | 859 | __ delayed()->nop(); |
aoqi@1 | 860 | } |
aoqi@1 | 861 | |
aoqi@1 | 862 | |
aoqi@1 | 863 | |
aoqi@1 | 864 | |
aoqi@1 | 865 | //static address deopt_with_exception_entry_for_patch = NULL; |
aoqi@1 | 866 | |
aoqi@1 | 867 | OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) { |
aoqi@1 | 868 | |
aoqi@1 | 869 | // use the maximum number of runtime-arguments here because it is difficult to |
aoqi@1 | 870 | // distinguish each RT-Call. |
aoqi@1 | 871 | // Note: This number affects also the RT-Call in generate_handle_exception because |
aoqi@1 | 872 | // the oop-map is shared for all calls. |
aoqi@1 | 873 | |
aoqi@1 | 874 | |
aoqi@1 | 875 | |
aoqi@1 | 876 | |
aoqi@1 | 877 | DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
aoqi@1 | 878 | assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
aoqi@1 | 879 | // assert(deopt_with_exception_entry_for_patch != NULL, |
aoqi@1 | 880 | // "deoptimization blob must have been created"); |
aoqi@1 | 881 | |
aoqi@1 | 882 | //OopMap* oop_map = save_live_registers(sasm, num_rt_args); |
aoqi@1 | 883 | OopMap* oop_map = save_live_registers(sasm, 0); |
aoqi@1 | 884 | #ifndef OPT_THREAD |
aoqi@1 | 885 | const Register thread = T8; |
aoqi@1 | 886 | // push java thread (becomes first argument of C function) |
aoqi@1 | 887 | __ get_thread(thread); |
aoqi@1 | 888 | #else |
aoqi@1 | 889 | const Register thread = TREG; |
aoqi@1 | 890 | #endif |
aoqi@1 | 891 | __ move(A0, thread); |
aoqi@1 | 892 | |
aoqi@1 | 893 | |
aoqi@1 | 894 | /* |
aoqi@1 | 895 | * NOTE: this frame should be compiled frame, but at this point, the pc in frame-anchor |
aoqi@1 | 896 | * is contained in interpreter. It should be wrong, and should be cleared but is not. |
aoqi@1 | 897 | * even if we cleared the wrong pc in anchor, the default way to get caller pc in class frame |
aoqi@1 | 898 | * is not right. It depends on that the caller pc is stored in *(sp - 1) but it's not the case |
aoqi@1 | 899 | */ |
aoqi@1 | 900 | __ set_last_Java_frame(thread, NOREG, FP, NULL); |
aoqi@1 | 901 | NOT_LP64(__ addiu(SP, SP, (-1) * wordSize)); |
aoqi@1 | 902 | __ move(AT, -(StackAlignmentInBytes)); |
aoqi@1 | 903 | __ andr(SP, SP, AT); |
aoqi@1 | 904 | __ relocate(relocInfo::internal_pc_type); |
aoqi@1 | 905 | { |
aoqi@1 | 906 | #ifndef _LP64 |
aoqi@1 | 907 | int save_pc = (int)__ pc() + 12 + NativeCall::return_address_offset; |
aoqi@1 | 908 | __ lui(AT, Assembler::split_high(save_pc)); |
aoqi@1 | 909 | __ addiu(AT, AT, Assembler::split_low(save_pc)); |
aoqi@1 | 910 | #else |
aoqi@1 | 911 | uintptr_t save_pc = (uintptr_t)__ pc() + NativeMovConstReg::instruction_size + 1 * BytesPerInstWord + NativeCall::return_address_offset; |
aoqi@1 | 912 | __ li48(AT, save_pc); |
aoqi@1 | 913 | #endif |
aoqi@1 | 914 | } |
aoqi@1 | 915 | __ st_ptr(AT, thread, in_bytes(JavaThread::last_Java_pc_offset())); |
aoqi@1 | 916 | |
aoqi@1 | 917 | // do the call |
aoqi@1 | 918 | #ifndef _LP64 |
aoqi@1 | 919 | __ lui(T9, Assembler::split_high((int)target)); |
aoqi@1 | 920 | __ addiu(T9, T9, Assembler::split_low((int)target)); |
aoqi@1 | 921 | #else |
aoqi@1 | 922 | __ li48(T9, (intptr_t)target); |
aoqi@1 | 923 | #endif |
aoqi@1 | 924 | __ jalr(T9); |
aoqi@1 | 925 | __ delayed()->nop(); |
aoqi@1 | 926 | OopMapSet* oop_maps = new OopMapSet(); |
aoqi@1 | 927 | oop_maps->add_gc_map(__ offset(), oop_map); |
aoqi@1 | 928 | |
aoqi@1 | 929 | #ifndef OPT_THREAD |
aoqi@1 | 930 | __ get_thread(thread); |
aoqi@1 | 931 | #endif |
aoqi@1 | 932 | |
aoqi@1 | 933 | __ ld_ptr (SP, thread, in_bytes(JavaThread::last_Java_sp_offset())); |
aoqi@1 | 934 | __ reset_last_Java_frame(thread, true,true); |
aoqi@1 | 935 | // discard thread arg |
aoqi@1 | 936 | // check for pending exceptions |
aoqi@1 | 937 | { |
aoqi@1 | 938 | Label L, skip; |
aoqi@1 | 939 | //Label no_deopt; |
aoqi@1 | 940 | __ ld_ptr(AT, thread, in_bytes(Thread::pending_exception_offset())); |
aoqi@1 | 941 | __ beq(AT, R0, L); |
aoqi@1 | 942 | __ delayed()->nop(); |
aoqi@1 | 943 | // exception pending => remove activation and forward to exception handler |
aoqi@1 | 944 | |
aoqi@1 | 945 | __ bne(V0,R0, skip); |
aoqi@1 | 946 | __ delayed()->nop(); |
aoqi@1 | 947 | // relocInfo::runtime_call_type); |
aoqi@1 | 948 | __ jmp(Runtime1::entry_for(Runtime1::forward_exception_id), |
aoqi@1 | 949 | relocInfo::runtime_call_type); |
aoqi@1 | 950 | __ delayed()->nop(); |
aoqi@1 | 951 | __ bind(skip); |
aoqi@1 | 952 | |
aoqi@1 | 953 | // the deopt blob expects exceptions in the special fields of |
aoqi@1 | 954 | // JavaThread, so copy and clear pending exception. |
aoqi@1 | 955 | |
aoqi@1 | 956 | // load and clear pending exception |
aoqi@1 | 957 | __ ld_ptr(V0, Address(thread,in_bytes(Thread::pending_exception_offset()))); |
aoqi@1 | 958 | __ st_ptr(R0, Address(thread, in_bytes(Thread::pending_exception_offset()))); |
aoqi@1 | 959 | |
aoqi@1 | 960 | // check that there is really a valid exception |
aoqi@1 | 961 | __ verify_not_null_oop(V0); |
aoqi@1 | 962 | |
aoqi@1 | 963 | // load throwing pc: this is the return address of the stub |
aoqi@1 | 964 | __ ld_ptr(V1, Address(SP, return_off * BytesPerWord)); |
aoqi@1 | 965 | |
aoqi@1 | 966 | |
aoqi@1 | 967 | #ifdef ASSERT |
aoqi@1 | 968 | // check that fields in JavaThread for exception oop and issuing pc are empty |
aoqi@1 | 969 | Label oop_empty; |
aoqi@1 | 970 | __ ld_ptr(AT, Address(thread, in_bytes(JavaThread::exception_oop_offset()))); |
aoqi@1 | 971 | __ beq(AT,R0,oop_empty); |
aoqi@1 | 972 | __ delayed()->nop(); |
aoqi@1 | 973 | __ stop("exception oop must be empty"); |
aoqi@1 | 974 | __ bind(oop_empty); |
aoqi@1 | 975 | |
aoqi@1 | 976 | Label pc_empty; |
aoqi@1 | 977 | __ ld_ptr(AT, Address(thread, in_bytes(JavaThread::exception_pc_offset()))); |
aoqi@1 | 978 | __ beq(AT,R0,pc_empty); |
aoqi@1 | 979 | __ delayed()->nop(); |
aoqi@1 | 980 | __ stop("exception pc must be empty"); |
aoqi@1 | 981 | __ bind(pc_empty); |
aoqi@1 | 982 | #endif |
aoqi@1 | 983 | |
aoqi@1 | 984 | // store exception oop and throwing pc to JavaThread |
aoqi@1 | 985 | __ st_ptr(V0,Address(thread, in_bytes(JavaThread::exception_oop_offset()))); |
aoqi@1 | 986 | __ st_ptr(V1,Address(thread, in_bytes(JavaThread::exception_pc_offset()))); |
aoqi@1 | 987 | |
aoqi@1 | 988 | restore_live_registers(sasm); |
aoqi@1 | 989 | |
aoqi@1 | 990 | __ leave(); |
aoqi@1 | 991 | |
aoqi@1 | 992 | // Forward the exception directly to deopt blob. We can blow no |
aoqi@1 | 993 | // registers and must leave throwing pc on the stack. A patch may |
aoqi@1 | 994 | // have values live in registers so the entry point with the |
aoqi@1 | 995 | // exception in tls. |
aoqi@1 | 996 | __ jmp(deopt_blob->unpack_with_exception_in_tls(), relocInfo::runtime_call_type); |
aoqi@1 | 997 | __ delayed()->nop(); |
aoqi@1 | 998 | |
aoqi@1 | 999 | __ bind(L); |
aoqi@1 | 1000 | } |
aoqi@1 | 1001 | |
aoqi@1 | 1002 | // Runtime will return true if the nmethod has been deoptimized during |
aoqi@1 | 1003 | // the patching process. In that case we must do a deopt reexecute instead. |
aoqi@1 | 1004 | |
aoqi@1 | 1005 | Label reexecuteEntry, cont; |
aoqi@1 | 1006 | |
aoqi@1 | 1007 | __ beq(V0, R0, cont); // have we deoptimized? |
aoqi@1 | 1008 | __ delayed()->nop(); |
aoqi@1 | 1009 | |
aoqi@1 | 1010 | // Will reexecute. Proper return address is already on the stack we just restore |
aoqi@1 | 1011 | // registers, pop all of our frame but the return address and jump to the deopt blob |
aoqi@1 | 1012 | restore_live_registers(sasm); |
aoqi@1 | 1013 | |
aoqi@1 | 1014 | __ leave(); |
aoqi@1 | 1015 | __ jmp(deopt_blob->unpack_with_reexecution(), relocInfo::runtime_call_type); |
aoqi@1 | 1016 | __ delayed()->nop(); |
aoqi@1 | 1017 | |
aoqi@1 | 1018 | __ bind(cont); |
aoqi@1 | 1019 | restore_live_registers(sasm); |
aoqi@1 | 1020 | |
aoqi@1 | 1021 | __ leave(); |
aoqi@1 | 1022 | __ jr(RA); |
aoqi@1 | 1023 | __ delayed()->nop(); |
aoqi@1 | 1024 | |
aoqi@1 | 1025 | return oop_maps; |
aoqi@1 | 1026 | } |
aoqi@1 | 1027 | |
aoqi@1 | 1028 | |
aoqi@1 | 1029 | OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) { |
aoqi@1 | 1030 | // for better readability |
aoqi@1 | 1031 | const bool must_gc_arguments = true; |
aoqi@1 | 1032 | const bool dont_gc_arguments = false; |
aoqi@1 | 1033 | |
aoqi@1 | 1034 | |
aoqi@1 | 1035 | // default value; overwritten for some optimized stubs that are called |
aoqi@1 | 1036 | // from methods that do not use the fpu |
aoqi@1 | 1037 | bool save_fpu_registers = true; |
aoqi@1 | 1038 | |
aoqi@1 | 1039 | |
aoqi@1 | 1040 | // stub code & info for the different stubs |
aoqi@1 | 1041 | OopMapSet* oop_maps = NULL; |
aoqi@1 | 1042 | |
aoqi@1 | 1043 | switch (id) { |
aoqi@1 | 1044 | case forward_exception_id: |
aoqi@1 | 1045 | { |
aoqi@1 | 1046 | // we're handling an exception in the context of a compiled |
aoqi@1 | 1047 | // frame. The registers have been saved in the standard |
aoqi@1 | 1048 | // places. Perform an exception lookup in the caller and |
aoqi@1 | 1049 | // dispatch to the handler if found. Otherwise unwind and |
aoqi@1 | 1050 | // dispatch to the callers exception handler. |
aoqi@1 | 1051 | |
aoqi@1 | 1052 | const Register exception_oop = V0; |
aoqi@1 | 1053 | const Register exception_pc = V1; |
aoqi@1 | 1054 | #ifndef OPT_THREAD |
aoqi@1 | 1055 | const Register thread = T8; |
aoqi@1 | 1056 | __ get_thread(thread); |
aoqi@1 | 1057 | #else |
aoqi@1 | 1058 | const Register thread = TREG; |
aoqi@1 | 1059 | #endif |
aoqi@1 | 1060 | // load pending exception oop into eax |
aoqi@1 | 1061 | __ ld_ptr(exception_oop, thread, in_bytes(Thread::pending_exception_offset())); |
aoqi@1 | 1062 | // clear pending exception |
aoqi@1 | 1063 | __ st_ptr(R0, thread, in_bytes(Thread::pending_exception_offset())); |
aoqi@1 | 1064 | |
aoqi@1 | 1065 | // load issuing PC (the return address for this stub) into V1 |
aoqi@1 | 1066 | __ ld_ptr(exception_pc, FP, 1*BytesPerWord); |
aoqi@1 | 1067 | |
aoqi@1 | 1068 | // make sure that the vm_results are cleared (may be unnecessary) |
aoqi@1 | 1069 | __ st_ptr(R0, Address(thread, in_bytes(JavaThread::vm_result_offset()))); |
aoqi@1 | 1070 | __ st_ptr(R0, Address(thread, in_bytes(JavaThread::vm_result_2_offset()))); |
aoqi@1 | 1071 | |
aoqi@1 | 1072 | // verify that that there is really a valid exception in eax |
aoqi@1 | 1073 | __ verify_not_null_oop(exception_oop); |
aoqi@1 | 1074 | |
aoqi@1 | 1075 | |
aoqi@1 | 1076 | oop_maps = new OopMapSet(); |
aoqi@1 | 1077 | OopMap* oop_map = generate_oop_map(sasm, 0); |
aoqi@1 | 1078 | generate_handle_exception(id, sasm); |
aoqi@1 | 1079 | __ stop("should not reach here"); |
aoqi@1 | 1080 | } |
aoqi@1 | 1081 | break; |
aoqi@1 | 1082 | |
aoqi@1 | 1083 | case new_instance_id: |
aoqi@1 | 1084 | case fast_new_instance_id: |
aoqi@1 | 1085 | case fast_new_instance_init_check_id: |
aoqi@1 | 1086 | { |
aoqi@1 | 1087 | // i use T4 as klass register, V0 as result register. MUST accord with NewInstanceStub::emit_code |
aoqi@1 | 1088 | #ifndef _LP64 |
aoqi@1 | 1089 | Register klass = T4; // Incoming |
aoqi@1 | 1090 | #else |
aoqi@1 | 1091 | Register klass = A4; // Incoming |
aoqi@1 | 1092 | #endif |
aoqi@1 | 1093 | Register obj = V0; // Result |
aoqi@1 | 1094 | |
aoqi@1 | 1095 | if (id == new_instance_id) { |
aoqi@1 | 1096 | __ set_info("new_instance", dont_gc_arguments); |
aoqi@1 | 1097 | } else if (id == fast_new_instance_id) { |
aoqi@1 | 1098 | __ set_info("fast new_instance", dont_gc_arguments); |
aoqi@1 | 1099 | } else { |
aoqi@1 | 1100 | assert(id == fast_new_instance_init_check_id, "bad StubID"); |
aoqi@1 | 1101 | __ set_info("fast new_instance init check", dont_gc_arguments); |
aoqi@1 | 1102 | } |
aoqi@1 | 1103 | |
aoqi@1 | 1104 | if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) |
aoqi@1 | 1105 | && UseTLAB && FastTLABRefill) { |
aoqi@1 | 1106 | Label slow_path; |
aoqi@1 | 1107 | Register obj_size = T0; |
aoqi@1 | 1108 | Register t1 = T2; |
aoqi@1 | 1109 | Register t2 = T3; |
aoqi@1 | 1110 | assert_different_registers(klass, obj, obj_size, t1, t2); |
aoqi@1 | 1111 | if (id == fast_new_instance_init_check_id) { |
aoqi@1 | 1112 | // make sure the klass is initialized |
aoqi@1 | 1113 | __ lw(AT, klass, in_bytes(InstanceKlass::init_state_offset())); |
aoqi@1 | 1114 | __ move(t1, InstanceKlass::fully_initialized); |
aoqi@1 | 1115 | __ bne(AT, t1, slow_path); |
aoqi@1 | 1116 | __ delayed()->nop(); |
aoqi@1 | 1117 | } |
aoqi@1 | 1118 | #ifdef ASSERT |
aoqi@1 | 1119 | // assert object can be fast path allocated |
aoqi@1 | 1120 | { |
aoqi@1 | 1121 | Label ok, not_ok; |
aoqi@1 | 1122 | __ lw(obj_size, klass, in_bytes(Klass::layout_helper_offset())); |
aoqi@1 | 1123 | __ blez(obj_size, not_ok); |
aoqi@1 | 1124 | __ delayed()->nop(); |
aoqi@1 | 1125 | __ andi(t1 , obj_size, Klass::_lh_instance_slow_path_bit); |
aoqi@1 | 1126 | __ beq(t1, R0, ok); |
aoqi@1 | 1127 | __ delayed()->nop(); |
aoqi@1 | 1128 | __ bind(not_ok); |
aoqi@1 | 1129 | __ stop("assert(can be fast path allocated)"); |
aoqi@1 | 1130 | __ should_not_reach_here(); |
aoqi@1 | 1131 | __ bind(ok); |
aoqi@1 | 1132 | } |
aoqi@1 | 1133 | #endif // ASSERT |
aoqi@1 | 1134 | // if we got here then the TLAB allocation failed, so try |
aoqi@1 | 1135 | // refilling the TLAB or allocating directly from eden. |
aoqi@1 | 1136 | |
aoqi@1 | 1137 | Label retry_tlab, try_eden; |
aoqi@1 | 1138 | __ tlab_refill(retry_tlab, try_eden, slow_path); // does not destroy edx (klass) |
aoqi@1 | 1139 | |
aoqi@1 | 1140 | __ bind(retry_tlab); |
aoqi@1 | 1141 | |
aoqi@1 | 1142 | // get the instance size |
aoqi@1 | 1143 | __ lw(obj_size, klass, in_bytes(Klass::layout_helper_offset())); |
aoqi@1 | 1144 | __ tlab_allocate(obj, obj_size, 0, t1, t2, slow_path); |
aoqi@1 | 1145 | __ initialize_object(obj, klass, obj_size, 0, t1, t2); |
aoqi@1 | 1146 | __ verify_oop(obj); |
aoqi@1 | 1147 | __ jr(RA); |
aoqi@1 | 1148 | __ delayed()->nop(); |
aoqi@1 | 1149 | |
aoqi@1 | 1150 | __ bind(try_eden); |
aoqi@1 | 1151 | |
aoqi@1 | 1152 | // get the instance size |
aoqi@1 | 1153 | __ lw(obj_size, klass, in_bytes(Klass::layout_helper_offset())); |
aoqi@1 | 1154 | __ eden_allocate(obj, obj_size, 0, t1, t2, slow_path); |
aoqi@1 | 1155 | __ initialize_object(obj, klass, obj_size, 0, t1, t2); |
aoqi@1 | 1156 | __ verify_oop(obj); |
aoqi@1 | 1157 | __ jr(RA); |
aoqi@1 | 1158 | __ delayed()->nop(); |
aoqi@1 | 1159 | |
aoqi@1 | 1160 | __ bind(slow_path); |
aoqi@1 | 1161 | } |
aoqi@1 | 1162 | __ enter(); |
aoqi@1 | 1163 | OopMap* map = save_live_registers(sasm, 0); |
aoqi@1 | 1164 | int call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_instance), klass); |
aoqi@1 | 1165 | oop_maps = new OopMapSet(); |
aoqi@1 | 1166 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1167 | restore_live_registers_except_V0(sasm); |
aoqi@1 | 1168 | __ verify_oop(obj); |
aoqi@1 | 1169 | __ leave(); |
aoqi@1 | 1170 | __ jr(RA); |
aoqi@1 | 1171 | __ delayed()->nop(); |
aoqi@1 | 1172 | |
aoqi@1 | 1173 | // V0: new instance |
aoqi@1 | 1174 | } |
aoqi@1 | 1175 | break; |
aoqi@1 | 1176 | |
aoqi@1 | 1177 | |
aoqi@1 | 1178 | #ifdef TIERED |
aoqi@1 | 1179 | //FIXME, I hava no idea which register to use |
aoqi@1 | 1180 | case counter_overflow_id: |
aoqi@1 | 1181 | { |
aoqi@1 | 1182 | #ifndef _LP64 |
aoqi@1 | 1183 | Register bci = T5; |
aoqi@1 | 1184 | #else |
aoqi@1 | 1185 | Register bci = A5; |
aoqi@1 | 1186 | #endif |
aoqi@1 | 1187 | __ enter(); |
aoqi@1 | 1188 | OopMap* map = save_live_registers(sasm, 0); |
aoqi@1 | 1189 | // Retrieve bci |
aoqi@1 | 1190 | __ lw(bci, Address(FP, 2*BytesPerWord));// FIXME:wuhui.ebp==?? |
aoqi@1 | 1191 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, counter_overflow), bci); |
aoqi@1 | 1192 | oop_maps = new OopMapSet(); |
aoqi@1 | 1193 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1194 | restore_live_registers(sasm); |
aoqi@1 | 1195 | __ leave(); |
aoqi@1 | 1196 | __ jr(RA); |
aoqi@1 | 1197 | __ delayed()->nop(); |
aoqi@1 | 1198 | } |
aoqi@1 | 1199 | break; |
aoqi@1 | 1200 | #endif // TIERED |
aoqi@1 | 1201 | |
aoqi@1 | 1202 | |
aoqi@1 | 1203 | |
aoqi@1 | 1204 | case new_type_array_id: |
aoqi@1 | 1205 | case new_object_array_id: |
aoqi@1 | 1206 | { |
aoqi@1 | 1207 | // i use T2 as length register, T4 as klass register, V0 as result register. |
aoqi@1 | 1208 | // MUST accord with NewTypeArrayStub::emit_code, NewObjectArrayStub::emit_code |
aoqi@1 | 1209 | Register length = T2; // Incoming |
aoqi@1 | 1210 | #ifndef _LP64 |
aoqi@1 | 1211 | Register klass = T4; // Incoming |
aoqi@1 | 1212 | #else |
aoqi@1 | 1213 | Register klass = A4; // Incoming |
aoqi@1 | 1214 | #endif |
aoqi@1 | 1215 | Register obj = V0; // Result |
aoqi@1 | 1216 | |
aoqi@1 | 1217 | if (id == new_type_array_id) { |
aoqi@1 | 1218 | __ set_info("new_type_array", dont_gc_arguments); |
aoqi@1 | 1219 | } else { |
aoqi@1 | 1220 | __ set_info("new_object_array", dont_gc_arguments); |
aoqi@1 | 1221 | } |
aoqi@1 | 1222 | |
aoqi@1 | 1223 | if (UseTLAB && FastTLABRefill) { |
aoqi@1 | 1224 | Register arr_size = T0; |
aoqi@1 | 1225 | Register t1 = T1; |
aoqi@1 | 1226 | Register t2 = T3; |
aoqi@1 | 1227 | Label slow_path; |
aoqi@1 | 1228 | assert_different_registers(length, klass, obj, arr_size, t1, t2); |
aoqi@1 | 1229 | |
aoqi@1 | 1230 | // check that array length is small enough for fast path |
aoqi@1 | 1231 | __ move(AT, C1_MacroAssembler::max_array_allocation_length); |
aoqi@1 | 1232 | __ sltu(AT, AT, length); |
aoqi@1 | 1233 | __ bne(AT, R0, slow_path); |
aoqi@1 | 1234 | __ delayed()->nop(); |
aoqi@1 | 1235 | |
aoqi@1 | 1236 | // if we got here then the TLAB allocation failed, so try |
aoqi@1 | 1237 | // refilling the TLAB or allocating directly from eden. |
aoqi@1 | 1238 | Label retry_tlab, try_eden; |
aoqi@1 | 1239 | //T0,T1,T5,T8 have changed! |
aoqi@1 | 1240 | __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves T2 & T4 |
aoqi@1 | 1241 | |
aoqi@1 | 1242 | __ bind(retry_tlab); |
aoqi@1 | 1243 | |
aoqi@1 | 1244 | // get the allocation size: (length << (layout_helper & 0x1F)) + header_size |
aoqi@1 | 1245 | __ lw(t1, klass, in_bytes(Klass::layout_helper_offset())); |
aoqi@1 | 1246 | __ andi(AT, t1, 0x1f); |
aoqi@1 | 1247 | __ sllv(arr_size, length, AT); |
aoqi@1 | 1248 | __ srl(t1, t1, Klass::_lh_header_size_shift); |
aoqi@1 | 1249 | __ andi(t1, t1, Klass::_lh_header_size_mask); |
aoqi@1 | 1250 | __ add(arr_size, t1, arr_size); |
aoqi@1 | 1251 | __ addi(arr_size, arr_size, MinObjAlignmentInBytesMask); // align up |
aoqi@1 | 1252 | __ move(AT, ~MinObjAlignmentInBytesMask); |
aoqi@1 | 1253 | __ andr(arr_size, arr_size, AT); |
aoqi@1 | 1254 | |
aoqi@1 | 1255 | |
aoqi@1 | 1256 | __ tlab_allocate(obj, arr_size, 0, t1, t2, slow_path); // preserves arr_size |
aoqi@1 | 1257 | __ initialize_header(obj, klass, length,t1,t2); |
aoqi@1 | 1258 | __ lbu(t1, Address(klass, in_bytes(Klass::layout_helper_offset()) |
aoqi@1 | 1259 | + (Klass::_lh_header_size_shift / BitsPerByte))); |
aoqi@1 | 1260 | assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); |
aoqi@1 | 1261 | assert(Klass::_lh_header_size_mask <= 0xFF, "bytewise"); |
aoqi@1 | 1262 | __ andi(t1, t1, Klass::_lh_header_size_mask); |
aoqi@1 | 1263 | __ sub(arr_size, arr_size, t1); // body length |
aoqi@1 | 1264 | __ add(t1, t1, obj); // body start |
aoqi@1 | 1265 | __ initialize_body(t1, arr_size, 0, t2); |
aoqi@1 | 1266 | __ verify_oop(obj); |
aoqi@1 | 1267 | __ jr(RA); |
aoqi@1 | 1268 | __ delayed()->nop(); |
aoqi@1 | 1269 | |
aoqi@1 | 1270 | __ bind(try_eden); |
aoqi@1 | 1271 | // get the allocation size: (length << (layout_helper & 0x1F)) + header_size |
aoqi@1 | 1272 | __ lw(t1, klass, in_bytes(Klass::layout_helper_offset())); |
aoqi@1 | 1273 | __ andi(AT, t1, 0x1f); |
aoqi@1 | 1274 | __ sllv(arr_size, length, AT); |
aoqi@1 | 1275 | __ srl(t1, t1, Klass::_lh_header_size_shift); |
aoqi@1 | 1276 | __ andi(t1, t1, Klass::_lh_header_size_mask); |
aoqi@1 | 1277 | __ add(arr_size, t1, arr_size); |
aoqi@1 | 1278 | __ addi(arr_size, arr_size, MinObjAlignmentInBytesMask); // align up |
aoqi@1 | 1279 | __ move(AT, ~MinObjAlignmentInBytesMask); |
aoqi@1 | 1280 | __ andr(arr_size, arr_size, AT); |
aoqi@1 | 1281 | __ eden_allocate(obj, arr_size, 0, t1, t2, slow_path); // preserves arr_size |
aoqi@1 | 1282 | __ initialize_header(obj, klass, length,t1,t2); |
aoqi@1 | 1283 | __ lbu(t1, Address(klass, in_bytes(Klass::layout_helper_offset()) |
aoqi@1 | 1284 | + (Klass::_lh_header_size_shift / BitsPerByte))); |
aoqi@1 | 1285 | __ andi(t1, t1, Klass::_lh_header_size_mask); |
aoqi@1 | 1286 | __ sub(arr_size, arr_size, t1); // body length |
aoqi@1 | 1287 | __ add(t1, t1, obj); // body start |
aoqi@1 | 1288 | |
aoqi@1 | 1289 | __ initialize_body(t1, arr_size, 0, t2); |
aoqi@1 | 1290 | __ verify_oop(obj); |
aoqi@1 | 1291 | __ jr(RA); |
aoqi@1 | 1292 | __ delayed()->nop(); |
aoqi@1 | 1293 | __ bind(slow_path); |
aoqi@1 | 1294 | } |
aoqi@1 | 1295 | |
aoqi@1 | 1296 | |
aoqi@1 | 1297 | __ enter(); |
aoqi@1 | 1298 | OopMap* map = save_live_registers(sasm, 0); |
aoqi@1 | 1299 | int call_offset; |
aoqi@1 | 1300 | if (id == new_type_array_id) { |
aoqi@1 | 1301 | call_offset = __ call_RT(obj, noreg, |
aoqi@1 | 1302 | CAST_FROM_FN_PTR(address, new_type_array), klass, length); |
aoqi@1 | 1303 | } else { |
aoqi@1 | 1304 | call_offset = __ call_RT(obj, noreg, |
aoqi@1 | 1305 | CAST_FROM_FN_PTR(address, new_object_array), klass, length); |
aoqi@1 | 1306 | } |
aoqi@1 | 1307 | |
aoqi@1 | 1308 | oop_maps = new OopMapSet(); |
aoqi@1 | 1309 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1310 | restore_live_registers_except_V0(sasm); |
aoqi@1 | 1311 | __ verify_oop(obj); |
aoqi@1 | 1312 | __ leave(); |
aoqi@1 | 1313 | __ jr(RA); |
aoqi@1 | 1314 | __ delayed()->nop(); |
aoqi@1 | 1315 | } |
aoqi@1 | 1316 | break; |
aoqi@1 | 1317 | |
aoqi@1 | 1318 | case new_multi_array_id: |
aoqi@1 | 1319 | { |
aoqi@1 | 1320 | StubFrame f(sasm, "new_multi_array", dont_gc_arguments); |
aoqi@1 | 1321 | //refer to c1_LIRGenerate_mips.cpp:do_NewmultiArray |
aoqi@1 | 1322 | // V0: klass |
aoqi@1 | 1323 | // T2: rank |
aoqi@1 | 1324 | // T0: address of 1st dimension |
aoqi@1 | 1325 | //__ call_RT(V0, noreg, CAST_FROM_FN_PTR(address, new_multi_array), A1, A2, A3); |
aoqi@1 | 1326 | //OopMap* map = save_live_registers(sasm, 4); |
aoqi@1 | 1327 | OopMap* map = save_live_registers(sasm, 0); |
aoqi@1 | 1328 | int call_offset = __ call_RT(V0, noreg, CAST_FROM_FN_PTR(address, new_multi_array), |
aoqi@1 | 1329 | V0,T2,T0); |
aoqi@1 | 1330 | oop_maps = new OopMapSet(); |
aoqi@1 | 1331 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1332 | //FIXME |
aoqi@1 | 1333 | restore_live_registers_except_V0(sasm); |
aoqi@1 | 1334 | // V0: new multi array |
aoqi@1 | 1335 | __ verify_oop(V0); |
aoqi@1 | 1336 | } |
aoqi@1 | 1337 | break; |
aoqi@1 | 1338 | |
aoqi@1 | 1339 | |
aoqi@1 | 1340 | case register_finalizer_id: |
aoqi@1 | 1341 | { |
aoqi@1 | 1342 | __ set_info("register_finalizer", dont_gc_arguments); |
aoqi@1 | 1343 | |
aoqi@1 | 1344 | // The object is passed on the stack and we haven't pushed a |
aoqi@1 | 1345 | // frame yet so it's one work away from top of stack. |
aoqi@1 | 1346 | //reference to LIRGenerator::do_RegisterFinalizer, call_runtime |
aoqi@1 | 1347 | __ move(V0, A0); |
aoqi@1 | 1348 | __ verify_oop(V0); |
aoqi@1 | 1349 | // load the klass and check the has finalizer flag |
aoqi@1 | 1350 | Label register_finalizer; |
aoqi@1 | 1351 | #ifndef _LP64 |
aoqi@1 | 1352 | Register t = T5; |
aoqi@1 | 1353 | #else |
aoqi@1 | 1354 | Register t = A5; |
aoqi@1 | 1355 | #endif |
aoqi@1 | 1356 | //__ ld_ptr(t, Address(V0, oopDesc::klass_offset_in_bytes())); |
aoqi@1 | 1357 | __ load_klass(t, V0); |
aoqi@1 | 1358 | __ lw(t, Address(t, Klass::access_flags_offset())); |
aoqi@1 | 1359 | __ move(AT, JVM_ACC_HAS_FINALIZER); |
aoqi@1 | 1360 | __ andr(AT, AT, t); |
aoqi@1 | 1361 | |
aoqi@1 | 1362 | __ bne(AT, R0, register_finalizer); |
aoqi@1 | 1363 | __ delayed()->nop(); |
aoqi@1 | 1364 | __ jr(RA); |
aoqi@1 | 1365 | __ delayed()->nop(); |
aoqi@1 | 1366 | __ bind(register_finalizer); |
aoqi@1 | 1367 | __ enter(); |
aoqi@1 | 1368 | OopMap* map = save_live_registers(sasm, 0 /*num_rt_args */); |
aoqi@1 | 1369 | |
aoqi@1 | 1370 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1371 | SharedRuntime::register_finalizer), V0); |
aoqi@1 | 1372 | oop_maps = new OopMapSet(); |
aoqi@1 | 1373 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1374 | |
aoqi@1 | 1375 | // Now restore all the live registers |
aoqi@1 | 1376 | restore_live_registers(sasm); |
aoqi@1 | 1377 | |
aoqi@1 | 1378 | __ leave(); |
aoqi@1 | 1379 | __ jr(RA); |
aoqi@1 | 1380 | __ delayed()->nop(); |
aoqi@1 | 1381 | } |
aoqi@1 | 1382 | break; |
aoqi@1 | 1383 | |
aoqi@1 | 1384 | // case range_check_failed_id: |
aoqi@1 | 1385 | case throw_range_check_failed_id: |
aoqi@1 | 1386 | { StubFrame f(sasm, "range_check_failed", dont_gc_arguments); |
aoqi@1 | 1387 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1388 | throw_range_check_exception),true); |
aoqi@1 | 1389 | } |
aoqi@1 | 1390 | break; |
aoqi@1 | 1391 | |
aoqi@1 | 1392 | case throw_index_exception_id: |
aoqi@1 | 1393 | { |
aoqi@1 | 1394 | // i use A1 as the index register, for this will be the first argument, see call_RT |
aoqi@1 | 1395 | StubFrame f(sasm, "index_range_check_failed", dont_gc_arguments); |
aoqi@1 | 1396 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1397 | throw_index_exception), true); |
aoqi@1 | 1398 | } |
aoqi@1 | 1399 | break; |
aoqi@1 | 1400 | |
aoqi@1 | 1401 | case throw_div0_exception_id: |
aoqi@1 | 1402 | { StubFrame f(sasm, "throw_div0_exception", dont_gc_arguments); |
aoqi@1 | 1403 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1404 | throw_div0_exception), false); |
aoqi@1 | 1405 | } |
aoqi@1 | 1406 | break; |
aoqi@1 | 1407 | |
aoqi@1 | 1408 | case throw_null_pointer_exception_id: |
aoqi@1 | 1409 | { StubFrame f(sasm, "throw_null_pointer_exception", dont_gc_arguments); |
aoqi@1 | 1410 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1411 | throw_null_pointer_exception),false); |
aoqi@1 | 1412 | } |
aoqi@1 | 1413 | break; |
aoqi@1 | 1414 | |
aoqi@1 | 1415 | case handle_exception_nofpu_id: |
aoqi@1 | 1416 | save_fpu_registers = false; |
aoqi@1 | 1417 | // fall through |
aoqi@1 | 1418 | case handle_exception_id: |
aoqi@1 | 1419 | { |
aoqi@1 | 1420 | |
aoqi@1 | 1421 | |
aoqi@1 | 1422 | StubFrame f(sasm, "handle_exception", dont_gc_arguments); |
aoqi@1 | 1423 | |
aoqi@1 | 1424 | //OopMap* oop_map = save_live_registers(sasm, 1, save_fpu_registers); |
aoqi@1 | 1425 | oop_maps = generate_handle_exception(id, sasm); |
aoqi@1 | 1426 | } |
aoqi@1 | 1427 | break; |
aoqi@1 | 1428 | case handle_exception_from_callee_id: |
aoqi@1 | 1429 | { |
aoqi@1 | 1430 | StubFrame f(sasm, "handle_exception_from_callee", dont_gc_arguments); |
aoqi@1 | 1431 | oop_maps = generate_handle_exception(id, sasm); |
aoqi@1 | 1432 | } |
aoqi@1 | 1433 | break; |
aoqi@1 | 1434 | case unwind_exception_id: |
aoqi@1 | 1435 | { |
aoqi@1 | 1436 | __ set_info("unwind_exception", dont_gc_arguments); |
aoqi@1 | 1437 | |
aoqi@1 | 1438 | generate_unwind_exception(sasm); |
aoqi@1 | 1439 | } |
aoqi@1 | 1440 | break; |
aoqi@1 | 1441 | |
aoqi@1 | 1442 | |
aoqi@1 | 1443 | case throw_array_store_exception_id: |
aoqi@1 | 1444 | { StubFrame f(sasm, "throw_array_store_exception", dont_gc_arguments); |
aoqi@1 | 1445 | // tos + 0: link |
aoqi@1 | 1446 | // + 1: return address |
aoqi@1 | 1447 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1448 | throw_array_store_exception), false); |
aoqi@1 | 1449 | } |
aoqi@1 | 1450 | break; |
aoqi@1 | 1451 | |
aoqi@1 | 1452 | case throw_class_cast_exception_id: |
aoqi@1 | 1453 | { StubFrame f(sasm, "throw_class_cast_exception", dont_gc_arguments); |
aoqi@1 | 1454 | oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1455 | throw_class_cast_exception), V0); |
aoqi@1 | 1456 | } |
aoqi@1 | 1457 | break; |
aoqi@1 | 1458 | |
aoqi@1 | 1459 | case throw_incompatible_class_change_error_id: |
aoqi@1 | 1460 | { |
aoqi@1 | 1461 | StubFrame f(sasm, "throw_incompatible_class_cast_exception", dont_gc_arguments); |
aoqi@1 | 1462 | oop_maps = generate_exception_throw(sasm, |
aoqi@1 | 1463 | CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false); |
aoqi@1 | 1464 | } |
aoqi@1 | 1465 | break; |
aoqi@1 | 1466 | |
aoqi@1 | 1467 | case slow_subtype_check_id: |
aoqi@1 | 1468 | { |
aoqi@1 | 1469 | //actually , We do not use it |
aoqi@1 | 1470 | // A0:klass_RInfo sub |
aoqi@1 | 1471 | // A1:k->encoding() super |
aoqi@1 | 1472 | __ set_info("slow_subtype_check", dont_gc_arguments); |
aoqi@1 | 1473 | __ st_ptr(T0, SP, (-1) * wordSize); |
aoqi@1 | 1474 | __ st_ptr(T1, SP, (-2) * wordSize); |
aoqi@1 | 1475 | __ addiu(SP, SP, (-2) * wordSize); |
aoqi@1 | 1476 | |
aoqi@1 | 1477 | //+ Klass::secondary_supers_offset_in_bytes())); |
aoqi@1 | 1478 | __ ld_ptr(AT, A0, in_bytes( Klass::secondary_supers_offset())); |
aoqi@1 | 1479 | __ lw(T1, AT, arrayOopDesc::length_offset_in_bytes()); |
aoqi@1 | 1480 | __ addiu(AT, AT, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
aoqi@1 | 1481 | |
aoqi@1 | 1482 | Label miss, hit, loop; |
aoqi@1 | 1483 | // T1:count, AT:array, A1:sub maybe supper |
aoqi@1 | 1484 | __ bind(loop); |
aoqi@1 | 1485 | __ beq(T1, R0, miss); |
aoqi@1 | 1486 | #ifndef _LP64 |
aoqi@1 | 1487 | __ delayed()->lw(T0, AT, 0); |
aoqi@1 | 1488 | #else |
aoqi@1 | 1489 | __ delayed()->ld(T0, AT, 0); |
aoqi@1 | 1490 | #endif |
aoqi@1 | 1491 | __ beq(T0, A1, hit); |
aoqi@1 | 1492 | __ delayed(); |
aoqi@1 | 1493 | __ addiu(T1, T1, -1); |
aoqi@1 | 1494 | __ b(loop); |
aoqi@1 | 1495 | __ delayed(); |
aoqi@1 | 1496 | __ addiu(AT, AT, 4); |
aoqi@1 | 1497 | |
aoqi@1 | 1498 | __ bind(hit); |
aoqi@1 | 1499 | //+ Klass::secondary_super_cache_offset_in_bytes()), eax); |
aoqi@1 | 1500 | __ st_ptr(A1, A0, |
aoqi@1 | 1501 | in_bytes( Klass::secondary_super_cache_offset())); |
aoqi@1 | 1502 | __ addiu(V0, R0, 1); |
aoqi@1 | 1503 | __ addiu(SP, SP, 2 * wordSize); |
aoqi@1 | 1504 | __ ld_ptr(T0, SP, (-1) * wordSize); |
aoqi@1 | 1505 | __ ld_ptr(T1, SP, (-2) * wordSize); |
aoqi@1 | 1506 | __ jr(RA); |
aoqi@1 | 1507 | __ delayed()->nop(); |
aoqi@1 | 1508 | |
aoqi@1 | 1509 | |
aoqi@1 | 1510 | __ bind(miss); |
aoqi@1 | 1511 | __ move(V0, R0); |
aoqi@1 | 1512 | __ addiu(SP, SP, 2 * wordSize); |
aoqi@1 | 1513 | __ ld_ptr(T0, SP, (-1) * wordSize); |
aoqi@1 | 1514 | __ ld_ptr(T1, SP, (-2) * wordSize); |
aoqi@1 | 1515 | __ jr(RA); |
aoqi@1 | 1516 | __ delayed()->nop(); |
aoqi@1 | 1517 | } |
aoqi@1 | 1518 | break; |
aoqi@1 | 1519 | |
aoqi@1 | 1520 | case monitorenter_nofpu_id: |
aoqi@1 | 1521 | save_fpu_registers = false;// fall through |
aoqi@1 | 1522 | |
aoqi@1 | 1523 | case monitorenter_id: |
aoqi@1 | 1524 | { |
aoqi@1 | 1525 | StubFrame f(sasm, "monitorenter", dont_gc_arguments); |
aoqi@1 | 1526 | OopMap* map = save_live_registers(sasm, 0, save_fpu_registers); |
aoqi@1 | 1527 | |
aoqi@1 | 1528 | f.load_argument(1, V0); // V0: object |
aoqi@1 | 1529 | #ifndef _LP64 |
aoqi@1 | 1530 | f.load_argument(0, T6); // T6: lock address |
aoqi@1 | 1531 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1532 | monitorenter), V0, T6); |
aoqi@1 | 1533 | #else |
aoqi@1 | 1534 | f.load_argument(0, A6); // A6: lock address |
aoqi@1 | 1535 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1536 | monitorenter), V0, A6); |
aoqi@1 | 1537 | #endif |
aoqi@1 | 1538 | |
aoqi@1 | 1539 | oop_maps = new OopMapSet(); |
aoqi@1 | 1540 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1541 | restore_live_registers(sasm, save_fpu_registers); |
aoqi@1 | 1542 | } |
aoqi@1 | 1543 | break; |
aoqi@1 | 1544 | |
aoqi@1 | 1545 | case monitorexit_nofpu_id: |
aoqi@1 | 1546 | save_fpu_registers = false; |
aoqi@1 | 1547 | // fall through |
aoqi@1 | 1548 | case monitorexit_id: |
aoqi@1 | 1549 | { |
aoqi@1 | 1550 | StubFrame f(sasm, "monitorexit", dont_gc_arguments); |
aoqi@1 | 1551 | OopMap* map = save_live_registers(sasm, 0, save_fpu_registers); |
aoqi@1 | 1552 | |
aoqi@1 | 1553 | #ifndef _LP64 |
aoqi@1 | 1554 | f.load_argument(0, T6); // eax: lock address |
aoqi@1 | 1555 | #else |
aoqi@1 | 1556 | f.load_argument(0, A6); // A6: lock address |
aoqi@1 | 1557 | #endif |
aoqi@1 | 1558 | // note: really a leaf routine but must setup last java sp |
aoqi@1 | 1559 | // => use call_RT for now (speed can be improved by |
aoqi@1 | 1560 | // doing last java sp setup manually) |
aoqi@1 | 1561 | #ifndef _LP64 |
aoqi@1 | 1562 | int call_offset = __ call_RT(noreg, noreg, |
aoqi@1 | 1563 | CAST_FROM_FN_PTR(address, monitorexit), T6); |
aoqi@1 | 1564 | #else |
aoqi@1 | 1565 | int call_offset = __ call_RT(noreg, noreg, |
aoqi@1 | 1566 | CAST_FROM_FN_PTR(address, monitorexit), A6); |
aoqi@1 | 1567 | #endif |
aoqi@1 | 1568 | oop_maps = new OopMapSet(); |
aoqi@1 | 1569 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1570 | restore_live_registers(sasm, save_fpu_registers); |
aoqi@1 | 1571 | |
aoqi@1 | 1572 | } |
aoqi@1 | 1573 | break; |
aoqi@1 | 1574 | // case init_check_patching_id: |
aoqi@1 | 1575 | case access_field_patching_id: |
aoqi@1 | 1576 | { |
aoqi@1 | 1577 | StubFrame f(sasm, "access_field_patching", dont_gc_arguments); |
aoqi@1 | 1578 | // we should set up register map |
aoqi@1 | 1579 | oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching)); |
aoqi@1 | 1580 | |
aoqi@1 | 1581 | } |
aoqi@1 | 1582 | break; |
aoqi@1 | 1583 | |
aoqi@1 | 1584 | case load_klass_patching_id: |
aoqi@1 | 1585 | { |
aoqi@1 | 1586 | StubFrame f(sasm, "load_klass_patching", dont_gc_arguments); |
aoqi@1 | 1587 | // we should set up register map |
aoqi@1 | 1588 | oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1589 | move_klass_patching)); |
aoqi@1 | 1590 | } |
aoqi@1 | 1591 | break; |
aoqi@1 | 1592 | /* case jvmti_exception_throw_id: |
aoqi@1 | 1593 | { |
aoqi@1 | 1594 | // V0: exception oop |
aoqi@1 | 1595 | // V1: exception pc |
aoqi@1 | 1596 | StubFrame f(sasm, "jvmti_exception_throw", dont_gc_arguments); |
aoqi@1 | 1597 | // Preserve all registers across this potentially blocking call |
aoqi@1 | 1598 | const int num_rt_args = 2; // thread, exception oop |
aoqi@1 | 1599 | //OopMap* map = save_live_registers(sasm, num_rt_args); |
aoqi@1 | 1600 | OopMap* map = save_live_registers(sasm, 0); |
aoqi@1 | 1601 | int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, |
aoqi@1 | 1602 | Runtime1::post_jvmti_exception_throw), V0); |
aoqi@1 | 1603 | oop_maps = new OopMapSet(); |
aoqi@1 | 1604 | oop_maps->add_gc_map(call_offset, map); |
aoqi@1 | 1605 | restore_live_registers(sasm); |
aoqi@1 | 1606 | }*/ |
aoqi@1 | 1607 | case load_mirror_patching_id: |
aoqi@1 | 1608 | { |
aoqi@1 | 1609 | StubFrame f(sasm, "load_mirror_patching" , dont_gc_arguments); |
aoqi@1 | 1610 | oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching)); |
aoqi@1 | 1611 | } |
aoqi@1 | 1612 | break; |
aoqi@1 | 1613 | case dtrace_object_alloc_id: |
aoqi@1 | 1614 | { |
aoqi@1 | 1615 | // V0:object |
aoqi@1 | 1616 | StubFrame f(sasm, "dtrace_object_alloc", dont_gc_arguments); |
aoqi@1 | 1617 | // we can't gc here so skip the oopmap but make sure that all |
aoqi@1 | 1618 | // the live registers get saved. |
aoqi@1 | 1619 | save_live_registers(sasm, 0); |
aoqi@1 | 1620 | |
aoqi@1 | 1621 | __ push_reg(V0); |
aoqi@1 | 1622 | __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), |
aoqi@1 | 1623 | relocInfo::runtime_call_type); |
aoqi@1 | 1624 | __ super_pop(V0); |
aoqi@1 | 1625 | |
aoqi@1 | 1626 | restore_live_registers(sasm); |
aoqi@1 | 1627 | } |
aoqi@1 | 1628 | break; |
aoqi@1 | 1629 | case fpu2long_stub_id: |
aoqi@1 | 1630 | { |
aoqi@1 | 1631 | //FIXME, I hava no idea how to port this |
aoqi@1 | 1632 | } |
aoqi@1 | 1633 | default: |
aoqi@1 | 1634 | { StubFrame f(sasm, "unimplemented entry", dont_gc_arguments); |
aoqi@1 | 1635 | __ move(A1, (int)id); |
aoqi@1 | 1636 | __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), A1); |
aoqi@1 | 1637 | __ should_not_reach_here(); |
aoqi@1 | 1638 | } |
aoqi@1 | 1639 | break; |
aoqi@1 | 1640 | } |
aoqi@1 | 1641 | return oop_maps; |
aoqi@1 | 1642 | } |
aoqi@1 | 1643 | |
aoqi@1 | 1644 | #undef __ |
aoqi@1 | 1645 | |
aoqi@1 | 1646 | const char *Runtime1::pd_name_for_address(address entry) { |
aoqi@1 | 1647 | return "<unknown function>"; |
aoqi@1 | 1648 | } |
aoqi@1 | 1649 |