Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/mips/vm/macroAssembler_mips.cpp
src/cpu/mips/vm/macroAssembler_mips.cpp
- changeset 8862
- fd13a567f179
- parent 8019
- 3fb3ceb7398f
- child 8865
- ffcdff41a92f
equal
deleted
inserted
replaced
| 8861:2a33b32dd03c | 8862:fd13a567f179 |
|---|---|
| 93 } | 93 } |
| 94 | 94 |
| 95 | 95 |
| 96 void MacroAssembler::pd_patch_instruction(address branch, address target) { | 96 void MacroAssembler::pd_patch_instruction(address branch, address target) { |
| 97 jint& stub_inst = *(jint*) branch; | 97 jint& stub_inst = *(jint*) branch; |
| 98 jint *pc = (jint *)branch; | |
| 98 | 99 |
| 99 /* * | 100 /* * |
| 100 move(AT, RA); // dadd | 101 move(AT, RA); // dadd |
| 101 emit_long(insn_ORRI(regimm_op, 0, bgezal_op, 1)); | 102 emit_long(insn_ORRI(regimm_op, 0, bgezal_op, 1)); |
| 102 nop(); | 103 nop(); |
| 104 ori(T9, 0); | 105 ori(T9, 0); |
| 105 daddu(T9, T9, RA); | 106 daddu(T9, T9, RA); |
| 106 move(RA, AT); | 107 move(RA, AT); |
| 107 jr(T9); | 108 jr(T9); |
| 108 */ | 109 */ |
| 109 if(special(stub_inst) == dadd_op) { | 110 if((opcode(stub_inst) == special_op) && (special(stub_inst) == dadd_op)) { |
| 110 jint *pc = (jint *)branch; | |
| 111 | 111 |
| 112 assert(opcode(pc[3]) == lui_op | 112 assert(opcode(pc[3]) == lui_op |
| 113 && opcode(pc[4]) == ori_op | 113 && opcode(pc[4]) == ori_op |
| 114 && special(pc[5]) == daddu_op, "Not a branch label patch"); | 114 && special(pc[5]) == daddu_op, "Not a branch label patch"); |
| 115 if(!(opcode(pc[3]) == lui_op | 115 if(!(opcode(pc[3]) == lui_op |
| 133 __ nop(); | 133 __ nop(); |
| 134 __ nop(); | 134 __ nop(); |
| 135 __ nop(); | 135 __ nop(); |
| 136 } | 136 } |
| 137 return; | 137 return; |
| 138 } else if (special(pc[4]) == jr_op | |
| 139 && opcode(pc[4]) == special_op | |
| 140 && (((opcode(pc[0]) == lui_op) || opcode(pc[0]) == daddiu_op) || (opcode(pc[0]) == ori_op))) { | |
| 141 | |
| 142 CodeBuffer cb(branch, 4 * 4); | |
| 143 MacroAssembler masm(&cb); | |
| 144 masm.patchable_set48(T9, (long)(target)); | |
| 145 return; | |
| 138 } | 146 } |
| 139 | 147 |
| 140 #ifndef PRODUCT | 148 #ifndef PRODUCT |
| 141 if (!is_simm16((target - branch - 4) >> 2)) { | 149 if (!is_simm16((target - branch - 4) >> 2)) { |
| 142 tty->print_cr("Illegal patching: target=0x%lx", target); | 150 tty->print_cr("Illegal patching: target=0x%lx", target); |
| 328 delayed()->nop(); | 336 delayed()->nop(); |
| 329 | 337 |
| 330 bind(not_jump); | 338 bind(not_jump); |
| 331 has_delay_slot(); | 339 has_delay_slot(); |
| 332 } | 340 } |
| 341 } | |
| 342 | |
| 343 void MacroAssembler::beq_long(Register rs, Register rt, Label& L) { | |
| 344 Label not_taken; | |
| 345 | |
| 346 bne(rs, rt, not_taken); | |
| 347 nop(); | |
| 348 | |
| 349 jmp_far(L); | |
| 350 | |
| 351 bind(not_taken); | |
| 352 } | |
| 353 | |
| 354 void MacroAssembler::bne_long(Register rs, Register rt, Label& L) { | |
| 355 Label not_taken; | |
| 356 | |
| 357 beq(rs, rt, not_taken); | |
| 358 nop(); | |
| 359 | |
| 360 jmp_far(L); | |
| 361 | |
| 362 bind(not_taken); | |
| 363 } | |
| 364 | |
| 365 void MacroAssembler::bc1t_long(Label& L) { | |
| 366 Label not_taken; | |
| 367 | |
| 368 bc1f(not_taken); | |
| 369 nop(); | |
| 370 | |
| 371 jmp_far(L); | |
| 372 | |
| 373 bind(not_taken); | |
| 374 } | |
| 375 | |
| 376 void MacroAssembler::bc1f_long(Label& L) { | |
| 377 Label not_taken; | |
| 378 | |
| 379 bc1t(not_taken); | |
| 380 nop(); | |
| 381 | |
| 382 jmp_far(L); | |
| 383 | |
| 384 bind(not_taken); | |
| 333 } | 385 } |
| 334 | 386 |
| 335 void MacroAssembler::b_far(Label& L) { | 387 void MacroAssembler::b_far(Label& L) { |
| 336 if (L.is_bound()) { | 388 if (L.is_bound()) { |
| 337 b_far(target(L)); | 389 b_far(target(L)); |
| 743 patchable_set48(T9, (long)entry); | 795 patchable_set48(T9, (long)entry); |
| 744 jr(T9); | 796 jr(T9); |
| 745 } | 797 } |
| 746 break; | 798 break; |
| 747 } | 799 } |
| 800 } | |
| 801 | |
| 802 void MacroAssembler::jmp_far(Label& L) { | |
| 803 if (L.is_bound()) { | |
| 804 address entry = target(L); | |
| 805 assert(entry != NULL, "jmp most probably wrong"); | |
| 806 InstructionMark im(this); | |
| 807 | |
| 808 relocate(relocInfo::internal_word_type); | |
| 809 patchable_set48(T9, (long)entry); | |
| 810 } else { | |
| 811 InstructionMark im(this); | |
| 812 L.add_patch_at(code(), locator()); | |
| 813 | |
| 814 relocate(relocInfo::internal_word_type); | |
| 815 patchable_set48(T9, (long)pc()); | |
| 816 } | |
| 817 | |
| 818 jr(T9); | |
| 819 nop(); | |
| 748 } | 820 } |
| 749 | 821 |
| 750 void MacroAssembler::call(address entry) { | 822 void MacroAssembler::call(address entry) { |
| 751 // c/c++ code assume T9 is entry point, so we just always move entry to t9 | 823 // c/c++ code assume T9 is entry point, so we just always move entry to t9 |
| 752 // maybe there is some more graceful method to handle this. FIXME | 824 // maybe there is some more graceful method to handle this. FIXME |
