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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 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528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 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""" register info set for armv8 64 bit architecture""" register_info = { 'sets' : ['GPR'], 'registers': [ {'name': 'x0' , 'bitsize':64, 'offset': 0, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 0, 'dwarf': 0, 'alt-name':'arg1', 'generic':'arg1'}, {'name': 'x1' , 'bitsize':64, 'offset': 8, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 1, 'dwarf': 1, 'alt-name':'arg2', 'generic':'arg2'}, {'name': 'x2' , 'bitsize':64, 'offset': 16, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 2, 'dwarf': 2, 'alt-name':'arg3', 'generic':'arg3'}, {'name': 'x3' , 'bitsize':64, 'offset': 24, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 3, 'dwarf': 3, 'alt-name':'arg4', 'generic':'arg4'}, {'name': 'x4' , 'bitsize':64, 'offset': 32, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 4, 'dwarf': 4, 'alt-name':'arg5', 'generic':'arg5'}, {'name': 'x5' , 'bitsize':64, 'offset': 40, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 5, 'dwarf': 5, 'alt-name':'arg6', 'generic':'arg6'}, {'name': 'x6' , 'bitsize':64, 'offset': 48, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 6, 'dwarf': 6, 'alt-name':'arg7', 'generic':'arg7'}, {'name': 'x7' , 'bitsize':64, 'offset': 56, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 7, 'dwarf': 7, 'alt-name':'arg8', 'generic':'arg8'}, {'name': 'x8' , 'bitsize':64, 'offset': 64, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 8, 'dwarf': 8}, {'name': 'x9' , 'bitsize':64, 'offset': 72, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 9, 'dwarf': 9}, {'name': 'x10' , 'bitsize':64, 'offset': 80, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':10, 'dwarf':10}, {'name': 'x11' , 'bitsize':64, 'offset': 88, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':11, 'dwarf':11}, {'name': 'x12' , 'bitsize':64, 'offset': 96, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':12, 'dwarf':12}, {'name': 'x13' , 'bitsize':64, 'offset':104, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':13, 'dwarf':13}, {'name': 'x14' , 'bitsize':64, 'offset':112, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':14, 'dwarf':14}, {'name': 'x15' , 'bitsize':64, 'offset':120, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':15, 'dwarf':15}, {'name': 'x16' , 'bitsize':64, 'offset':128, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':16, 'dwarf':16}, {'name': 'x17' , 'bitsize':64, 'offset':136, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':17, 'dwarf':17}, {'name': 'x18' , 'bitsize':64, 'offset':144, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':18, 'dwarf':18}, {'name': 'x19' , 'bitsize':64, 'offset':152, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':19, 'dwarf':19}, {'name': 'x20' , 'bitsize':64, 'offset':160, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':20, 'dwarf':20}, {'name': 'x21' , 'bitsize':64, 'offset':168, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':21, 'dwarf':21}, {'name': 'x22' , 'bitsize':64, 'offset':176, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':22, 'dwarf':22}, {'name': 'x23' , 'bitsize':64, 'offset':184, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':23, 'dwarf':23}, {'name': 'x24' , 'bitsize':64, 'offset':192, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':24, 'dwarf':24}, {'name': 'x25' , 'bitsize':64, 'offset':200, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':25, 'dwarf':25}, {'name': 'x26' , 'bitsize':64, 'offset':208, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':26, 'dwarf':26}, {'name': 'x27' , 'bitsize':64, 'offset':216, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':27, 'dwarf':27}, {'name': 'x28' , 'bitsize':64, 'offset':224, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':28, 'dwarf':28}, {'name': 'fp' , 'bitsize':64, 'offset':232, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':29, 'dwarf':29, 'alt-name': 'fp', 'generic':'fp'}, {'name': 'lr' , 'bitsize':64, 'offset':240, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':30, 'dwarf':30, 'alt-name': 'lr', 'generic':'lr'}, {'name': 'sp' , 'bitsize':64, 'offset':248, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':31, 'dwarf':31, 'alt-name': 'sp', 'generic':'sp'}, {'name': 'pc' , 'bitsize':64, 'offset':256, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':32, 'dwarf':32, 'alt-name': 'pc', 'generic':'pc'}, {'name': 'far' , 'bitsize':64, 'offset':264, 'encoding':'uint', 'format':'hex', 'set':0}, {'name': 'cpsr', 'bitsize':32, 'offset':272, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':33, 'dwarf':33, 'generic':'flags'}, {'name': 'esr' , 'bitsize':32, 'offset':276, 'encoding':'uint', 'format':'hex', 'set':0}, ] } def __init__(self): self.switch_context_address = osplugin_target_obj.FindSymbols('Switch_context')[0].GetSymbol().GetStartAddress().GetLoadAddress(osplugin_target_obj) self.ResetRegisterValues() def ResetRegisterValues(self): self.x0 = 0 self.x1 = 0 self.x2 = 0 self.x3 = 0 self.x4 = 0 self.x5 = 0 self.x6 = 0 self.x7 = 0 self.x8 = 0 self.x9 = 0 self.x10 = 0 self.x11 = 0 self.x12 = 0 self.x13 = 0 self.x14 = 0 self.x15 = 0 self.x16 = 0 self.x17 = 0 self.x18 = 0 self.x19 = 0 self.x20 = 0 self.x21 = 0 self.x22 = 0 self.x23 = 0 self.x24 = 0 self.x25 = 0 self.x26 = 0 self.x27 = 0 self.x28 = 0 self.fp = 0 self.lr = 0 self.sp = 0 self.pc = 0 self.far = 0 self.cpsr = 0 self.esr = 0 def __str__(self): return """ pc = """ def GetPackedRegisterState(self): return struct.pack('34QII', self.x0, self.x1, self.x2, self.x3, self.x4, self.x5, self.x6, self.x7, self.x8, self.x9, self.x10, self.x11, self.x12, self.x13, self.x14, self.x15, self.x16, self.x17, self.x18, self.x19, self.x20, self.x21, self.x22, self.x23, self.x24, self.x25, self.x26, self.x27, self.x28, self.fp, self.lr, self.sp, self.pc, self.far, self.cpsr, self.esr) def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version): """ Setup register values from KDP saved information. """ saved_state = kernel_version.CreateValueFromExpression(None, '(struct arm_saved_state64 *) ' + str(kdp_state.GetValueAsUnsigned())) saved_state = saved_state.Dereference() saved_state = PluginValue(saved_state) self.ResetRegisterValues() self.x0 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(0).GetValueAsUnsigned() self.x1 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(1).GetValueAsUnsigned() self.x2 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(2).GetValueAsUnsigned() self.x3 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(3).GetValueAsUnsigned() self.x4 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(4).GetValueAsUnsigned() self.x5 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(5).GetValueAsUnsigned() self.x6 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(6).GetValueAsUnsigned() self.x7 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(7).GetValueAsUnsigned() self.x8 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(8).GetValueAsUnsigned() self.x9 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(9).GetValueAsUnsigned() self.x10 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(10).GetValueAsUnsigned() self.x11 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(11).GetValueAsUnsigned() self.x12 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(12).GetValueAsUnsigned() self.x13 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(13).GetValueAsUnsigned() self.x14 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(14).GetValueAsUnsigned() self.x15 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(15).GetValueAsUnsigned() self.x16 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(16).GetValueAsUnsigned() self.x17 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(17).GetValueAsUnsigned() self.x18 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(18).GetValueAsUnsigned() self.x19 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(19).GetValueAsUnsigned() self.x20 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(20).GetValueAsUnsigned() self.x21 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(21).GetValueAsUnsigned() self.x22 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(22).GetValueAsUnsigned() self.x23 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(23).GetValueAsUnsigned() self.x24 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(24).GetValueAsUnsigned() self.x25 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(25).GetValueAsUnsigned() self.x26 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(26).GetValueAsUnsigned() self.x27 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(27).GetValueAsUnsigned() self.x28 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(28).GetValueAsUnsigned() self.fp = saved_state.GetChildMemberWithName('fp').GetValueAsUnsigned() self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned() self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned() self.pc = saved_state.GetChildMemberWithName('pc').GetValueAsUnsigned() self.far = saved_state.GetChildMemberWithName('far').GetValueAsUnsigned() self.cpsr = saved_state.GetChildMemberWithName('cpsr').GetValueAsUnsigned() self.esr = saved_state.GetChildMemberWithName('esr').GetValueAsUnsigned() return self def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version): saved_state = kernel_version.CreateValueFromExpression(None, '(arm_kernel_saved_state_t *) '+ str(kstack_saved_state_addr)) saved_state = saved_state.Dereference() saved_state = PluginValue(saved_state) self.ResetRegisterValues() self.x19 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(0).GetValueAsUnsigned() self.x20 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(1).GetValueAsUnsigned() self.x21 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(2).GetValueAsUnsigned() self.x22 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(3).GetValueAsUnsigned() self.x23 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(4).GetValueAsUnsigned() self.x24 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(5).GetValueAsUnsigned() self.x25 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(6).GetValueAsUnsigned() self.x26 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(7).GetValueAsUnsigned() self.x27 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(8).GetValueAsUnsigned() self.x28 = saved_state.GetChildMemberWithName('x').GetChildAtIndex(9).GetValueAsUnsigned() self.fp = saved_state.GetChildMemberWithName('fp').GetValueAsUnsigned() self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned() self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned() # pc for a blocked thread is treated to be the next instruction it would run after thread switch. self.pc = self.switch_context_address return self def ReadRegisterDataFromContinuation(self, continuation_ptr): self.ResetRegisterValues() self.pc = continuation_ptr return self @classmethod def GetRegisterInfo(cls, regnum): if regnum < 0 or regnum > len(cls.register_info['registers']): return '' reginfo = cls.register_info['registers'][regnum] retval = '' for i in list(reginfo.keys()): v_str = str(reginfo[i]) if i == 'set': v_str = 'General Purpose Registers' retval += "%s:%s;" % (str(i), v_str) return retval class Armv7_RegisterSet(object): """ register info set for armv7 32 bit architecture """ register_info = { 'sets' : ['GPR'], 'registers': [ { 'name':'r0' , 'bitsize' : 32, 'offset' : 0, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 0, 'dwarf' : 0}, { 'name':'r1' , 'bitsize' : 32, 'offset' : 4, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 1, 'dwarf' : 1}, { 'name':'r2' , 'bitsize' : 32, 'offset' : 8, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 2, 'dwarf' : 2}, { 'name':'r3' , 'bitsize' : 32, 'offset' : 12, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 3, 'dwarf' : 3}, { 'name':'r4' , 'bitsize' : 32, 'offset' : 16, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 4, 'dwarf' : 4}, { 'name':'r5' , 'bitsize' : 32, 'offset' : 20, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 5, 'dwarf' : 5}, { 'name':'r6' , 'bitsize' : 32, 'offset' : 24, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 6, 'dwarf' : 6}, { 'name':'r7' , 'bitsize' : 32, 'offset' : 28, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 7, 'dwarf' : 7}, { 'name':'r8' , 'bitsize' : 32, 'offset' : 32, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 8, 'dwarf' : 8}, { 'name':'r9' , 'bitsize' : 32, 'offset' : 36, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc': 9, 'dwarf' : 9}, { 'name':'r10' , 'bitsize' : 32, 'offset' : 40, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':10, 'dwarf' :10}, { 'name':'r11' , 'bitsize' : 32, 'offset' : 44, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':11, 'dwarf' :11, 'alt-name': 'fp', 'generic': 'fp'}, { 'name':'r12' , 'bitsize' : 32, 'offset' : 48, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':12, 'dwarf' :12}, { 'name':'sp' , 'bitsize' : 32, 'offset' : 52, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':13, 'dwarf' :13, 'generic': 'sp'}, { 'name':'lr' , 'bitsize' : 32, 'offset' : 56, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':14, 'dwarf' :14, 'generic': 'lr'}, { 'name':'pc' , 'bitsize' : 32, 'offset' : 60, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':15, 'dwarf' :15, 'generic': 'pc'}, { 'name':'cpsr' , 'bitsize' : 32, 'offset' : 64, 'encoding':'uint', 'format':'hex', 'set':0, 'gcc':16, 'dwarf' :16, 'generic':'flags'}, { 'name':'fsr' , 'bitsize' : 32, 'offset' : 68, 'encoding':'uint', 'format':'hex', 'set':0}, { 'name':'far' , 'bitsize' : 32, 'offset' : 72, 'encoding':'uint', 'format':'hex', 'set':0} ] } def __init__(self): self.switch_context_address = osplugin_target_obj.FindSymbols('load_reg')[0].GetSymbol().GetStartAddress().GetLoadAddress(osplugin_target_obj) + 8 self.ResetRegisterValues() @classmethod def GetRegisterInfo(cls, regnum): if regnum < 0 or regnum > len(cls.register_info['registers']): return '' reginfo = cls.register_info['registers'][regnum] retval = '' for i in list(reginfo.keys()): v_str = str(reginfo[i]) if i == 'set': v_str = 'General Purpose Registers' retval += "%s:%s;" % (str(i), v_str) return retval def ResetRegisterValues(self): self.r0 = 0 self.r1 = 0 self.r2 = 0 self.r3 = 0 self.r4 = 0 self.r5 = 0 self.r6 = 0 self.r7 = 0 self.r8 = 0 self.r9 = 0 self.r10 = 0 self.r11 = 0 self.r12 = 0 self.sp = 0 self.lr = 0 self.pc = 0 self.cpsr = 0 self.fsr = 0 self.far = 0 def __str__(self): return """ r0 = {o.r0: <#010x} r1 = {o.r1: <#010x} r2 = {o.r2: <#010x} r3 = {o.r3: <#010x} r4 = {o.r4: <#010x} r5 = {o.r5: <#010x} r6 = {o.r6: <#010x} r7 = {o.r7: <#010x} r8 = {o.r8: <#010x} r9 = {o.r9: <#010x} r10 = {o.r10: <#010x} r11 = {o.r11: <#010x} r12 = {o.r12: <#010x} sp = {o.sp: <#010x} lr = {o.lr: <#010x} pc = {o.pc: <#010x} cpsr = {o.cpsr: <#010x} fsr = {o.fsr : <#010x} far = {o.far : <#010x} """.format(o=self) def GetPackedRegisterState(self): return struct.pack('19I', self.r0, self.r1, self.r2, self.r3, self.r4, self.r5, self.r6, self.r7, self.r8, self.r9, self.r10, self.r11, self.r12, self.sp, self.lr, self.pc, self.cpsr, self.fsr, self.far) def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version): saved_state = kernel_version.CreateValueFromExpression(None, '(struct arm_saved_state *) ' + str(kdp_state.GetValueAsUnsigned())) saved_state = saved_state.Dereference() saved_state = PluginValue(saved_state) self.ResetRegisterValues() self.r0 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(0).GetValueAsUnsigned() self.r1 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(1).GetValueAsUnsigned() self.r2 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(2).GetValueAsUnsigned() self.r3 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(3).GetValueAsUnsigned() self.r4 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(4).GetValueAsUnsigned() self.r5 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(5).GetValueAsUnsigned() self.r6 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(6).GetValueAsUnsigned() self.r7 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(7).GetValueAsUnsigned() self.r8 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(8).GetValueAsUnsigned() self.r9 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(9).GetValueAsUnsigned() self.r10 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(10).GetValueAsUnsigned() self.r11 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(11).GetValueAsUnsigned() self.r12 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(12).GetValueAsUnsigned() self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned() self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned() self.pc = saved_state.GetChildMemberWithName('pc').GetValueAsUnsigned() self.cpsr = saved_state.GetChildMemberWithName('cpsr').GetValueAsUnsigned() self.fsr = saved_state.GetChildMemberWithName('fsr').GetValueAsUnsigned() self.far = saved_state.GetChildMemberWithName('far').GetValueAsUnsigned() return self def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version): saved_state = kernel_version.CreateValueFromExpression(None, '(struct arm_saved_state *) '+ str(kstack_saved_state_addr)) saved_state = saved_state.Dereference() saved_state = PluginValue(saved_state) self.ResetRegisterValues() self.r0 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(0).GetValueAsUnsigned() self.r1 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(1).GetValueAsUnsigned() self.r2 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(2).GetValueAsUnsigned() self.r3 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(3).GetValueAsUnsigned() self.r4 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(4).GetValueAsUnsigned() self.r5 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(5).GetValueAsUnsigned() self.r6 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(6).GetValueAsUnsigned() self.r7 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(7).GetValueAsUnsigned() self.r8 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(8).GetValueAsUnsigned() self.r9 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(9).GetValueAsUnsigned() self.r10 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(10).GetValueAsUnsigned() self.r11 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(11).GetValueAsUnsigned() self.r12 = saved_state.GetChildMemberWithName('r').GetChildAtIndex(12).GetValueAsUnsigned() self.sp = saved_state.GetChildMemberWithName('sp').GetValueAsUnsigned() self.lr = saved_state.GetChildMemberWithName('lr').GetValueAsUnsigned() # pc for a blocked thread is treated to be the next instruction it would run after thread switch. self.pc = self.switch_context_address self.cpsr = saved_state.GetChildMemberWithName('cpsr').GetValueAsUnsigned() self.fsr = saved_state.GetChildMemberWithName('fsr').GetValueAsUnsigned() self.far = saved_state.GetChildMemberWithName('far').GetValueAsUnsigned() return self def ReadRegisterDataFromContinuation(self, continuation_ptr): self.ResetRegisterValues() self.pc = continuation_ptr return self class I386_RegisterSet(object): """ register info set for i386 architecture """ register_info = { 'sets' : ['GPR'], 'registers': [ { 'name': 'eax' , 'bitsize': 32, 'offset' : 0, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 0, 'dwarf': 0}, { 'name': 'ebx' , 'bitsize': 32, 'offset' : 4, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 3, 'dwarf': 3}, { 'name': 'ecx' , 'bitsize': 32, 'offset' : 8, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 1, 'dwarf': 1}, { 'name': 'edx' , 'bitsize': 32, 'offset' :12, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 2, 'dwarf': 2}, { 'name': 'edi' , 'bitsize': 32, 'offset' :16, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 7, 'dwarf': 7}, { 'name': 'esi' , 'bitsize': 32, 'offset' :20, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 6, 'dwarf': 6}, { 'name': 'ebp' , 'bitsize': 32, 'offset' :24, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 4, 'dwarf': 5, 'generic': 'fp', 'alt-name': 'fp'}, { 'name': 'esp' , 'bitsize': 32, 'offset' :28, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 5, 'dwarf': 4, 'generic': 'sp', 'alt-name': 'sp'}, { 'name': 'ss' , 'bitsize': 32, 'offset' :32, 'encoding': 'uint' , 'format':'hex' , 'set': 0}, { 'name': 'eflags', 'bitsize': 32, 'offset' :36, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' : 9, 'dwarf': 9, 'generic': 'flags'}, { 'name': 'eip' , 'bitsize': 32, 'offset' :40, 'encoding': 'uint' , 'format':'hex' , 'set': 0, 'gcc' :8, 'dwarf':8, 'generic': 'pc', 'alt-name': 'pc'}, { 'name': 'cs' , 'bitsize': 32, 'offset' :44, 'encoding': 'uint' , 'format':'hex' , 'set': 0}, { 'name': 'ds' , 'bitsize': 32, 'offset' :48, 'encoding': 'uint' , 'format':'hex' , 'set': 0}, { 'name': 'es' , 'bitsize': 32, 'offset' :52, 'encoding': 'uint' , 'format':'hex' , 'set': 0}, { 'name': 'fs' , 'bitsize': 32, 'offset' :56, 'encoding': 'uint' , 'format':'hex' , 'set': 0}, { 'name': 'gs' , 'bitsize': 32, 'offset' :60, 'encoding': 'uint' , 'format':'hex' , 'set': 0}, ] } def __init__(self): self.ResetRegisterValues() @classmethod def GetRegisterInfo(cls, regnum): if regnum < 0 or regnum > len(cls.register_info['registers']): return '' reginfo = cls.register_info['registers'][regnum] retval = '' for i in list(reginfo.keys()): v_str = str(reginfo[i]) if i == 'set': v_str = 'General Purpose Registers' retval += "%s:%s;" % (str(i), v_str) return retval def ResetRegisterValues(self): """ set all registers to zero """ self.eax = 0 self.ebx = 0 self.ecx = 0 self.edx = 0 self.edi = 0 self.esi = 0 self.ebp = 0 self.esp = 0 self.ss = 0 self.eflags = 0 self.eip = 0 self.cs = 0 self.ds = 0 self.es = 0 self.fs = 0 self.gs = 0 def __str__(self): return """ eax = {o.eax: #010x} ebx = {o.ebx: #010x} ecx = {o.ecx: #010x} edx = {o.edx: #010x} edi = {o.edi: #010x} esi = {o.esi: #010x} ebp = {o.ebp: #010x} esp = {o.esp: #010x} ss = {o.ss: #010x} eflags = {o.eflags: #010x} eip = {o.eip: #010x} cs = {o.cs: #010x} ds = {o.ds: #010x} es = {o.es: #010x} fs = {o.fs: #010x} gs = {o.gs: #010x} """.format(o=self) def GetPackedRegisterState(self): """ get a struct.pack register data """ return struct.pack('16I', self.eax, self.ebx, self.ecx, self.edx, self.edi, self.esi, self.ebp, self.esp, self.ss, self.eflags, self.eip, self.cs, self.ds, self.es, self.fs, self.gs ) def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version): """ to be implemented""" return None def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version): """ to be implemented """ return None def ReadRegisterDataFromContinuation(self, continuation_ptr): self.ResetRegisterValues() self.eip = continuation_ptr return self class X86_64RegisterSet(object): """ register info set for x86_64 architecture """ register_info = { 'sets' : ['GPR'], 'registers': [ { 'name':'rax' , 'bitsize' : 64, 'offset' : 0, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 0, 'dwarf' : 0}, { 'name':'rbx' , 'bitsize' : 64, 'offset' : 8, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 3, 'dwarf' : 3}, { 'name':'rcx' , 'bitsize' : 64, 'offset' : 16, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 2, 'dwarf' : 2, 'generic':'arg4', 'alt-name':'arg4', }, { 'name':'rdx' , 'bitsize' : 64, 'offset' : 24, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 1, 'dwarf' : 1, 'generic':'arg3', 'alt-name':'arg3', }, { 'name':'rdi' , 'bitsize' : 64, 'offset' : 32, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 5, 'dwarf' : 5, 'generic':'arg1', 'alt-name':'arg1', }, { 'name':'rsi' , 'bitsize' : 64, 'offset' : 40, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 4, 'dwarf' : 4, 'generic':'arg2', 'alt-name':'arg2', }, { 'name':'rbp' , 'bitsize' : 64, 'offset' : 48, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 6, 'dwarf' : 6, 'generic':'fp' , 'alt-name':'fp', }, { 'name':'rsp' , 'bitsize' : 64, 'offset' : 56, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 7, 'dwarf' : 7, 'generic':'sp' , 'alt-name':'sp', }, { 'name':'r8' , 'bitsize' : 64, 'offset' : 64, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 8, 'dwarf' : 8, 'generic':'arg5', 'alt-name':'arg5', }, { 'name':'r9' , 'bitsize' : 64, 'offset' : 72, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 9, 'dwarf' : 9, 'generic':'arg6', 'alt-name':'arg6', }, { 'name':'r10' , 'bitsize' : 64, 'offset' : 80, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 10, 'dwarf' : 10}, { 'name':'r11' , 'bitsize' : 64, 'offset' : 88, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 11, 'dwarf' : 11}, { 'name':'r12' , 'bitsize' : 64, 'offset' : 96, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 12, 'dwarf' : 12}, { 'name':'r13' , 'bitsize' : 64, 'offset' : 104, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 13, 'dwarf' : 13}, { 'name':'r14' , 'bitsize' : 64, 'offset' : 112, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 14, 'dwarf' : 14}, { 'name':'r15' , 'bitsize' : 64, 'offset' : 120, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 15, 'dwarf' : 15}, { 'name':'rip' , 'bitsize' : 64, 'offset' : 128, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'gcc' : 16, 'dwarf' : 16, 'generic':'pc', 'alt-name':'pc' }, { 'name':'rflags' , 'bitsize' : 64, 'offset' : 136, 'encoding':'uint' , 'format':'hex' , 'set': 0, 'generic':'flags', 'alt-name':'flags' }, { 'name':'cs' , 'bitsize' : 64, 'offset' : 144, 'encoding':'uint' , 'format':'hex' , 'set': 0 }, { 'name':'fs' , 'bitsize' : 64, 'offset' : 152, 'encoding':'uint' , 'format':'hex' , 'set': 0 }, { 'name':'gs' , 'bitsize' : 64, 'offset' : 160, 'encoding':'uint' , 'format':'hex' , 'set': 0 }, ] } def __init__(self): self.ResetRegisterValues() @classmethod def GetRegisterInfo(cls, regnum): if regnum < 0 or regnum > len(cls.register_info['registers']): return '' reginfo = cls.register_info['registers'][regnum] retval = '' for i in list(reginfo.keys()): v_str = str(reginfo[i]) if i == 'set': v_str = 'General Purpose Registers' retval += "%s:%s;" % (str(i), v_str) return retval def ResetRegisterValues(self): """ set all the registers to zero. """ self.rax = 0 self.rbx = 0 self.rcx = 0 self.rdx = 0 self.rdi = 0 self.rsi = 0 self.rbp = 0 self.rsp = 0 self.r8 = 0 self.r9 = 0 self.r10 = 0 self.r11 = 0 self.r12 = 0 self.r13 = 0 self.r14 = 0 self.r15 = 0 self.rip = 0 self.rflags = 0 self.cs = 0 self.fs = 0 self.gs = 0 def __str__(self): return """ rax = {o.rax: <#018x} rbx = {o.rbx: <#018x} rcx = {o.rcx: <#018x} rdx = {o.rdx: <#018x} rdi = {o.rdi: <#018x} rsi = {o.rsi: <#018x} rbp = {o.rbp: <#018x} rsp = {o.rsp: <#018x} r8 = {o.r8: <#018x} r9 = {o.r9: <#018x} r10 = {o.r10: <#018x} r11 = {o.r11: <#018x} r12 = {o.r12: <#018x} r13 = {o.r13: <#018x} r14 = {o.r14: <#018x} r15 = {o.r15: <#018x} rip = {o.rip: <#018x} rflags = {o.rflags: <#018x} cs = {o.cs: <#018x} fs = {o.fs: <#018x} gs = {o.gs: <#018x} """.format(o=self) def GetPackedRegisterState(self): """ get a struct.pack register data for passing to C constructs """ return struct.pack('21Q', self.rax, self.rbx, self.rcx, self.rdx, self.rdi, self.rsi, self.rbp, self.rsp, self.r8, self.r9, self.r10, self.r11, self.r12, self.r13, self.r14, self.r15, self.rip, self.rflags, self.cs, self.fs, self.gs) def ReadRegisterDataFromKDPSavedState(self, kdp_state, kernel_version): saved_state = kernel_version.CreateValueFromExpression(None, '(struct x86_saved_state64 *) '+ str(kdp_state.GetValueAsUnsigned())) saved_state = saved_state.Dereference() saved_state = PluginValue(saved_state) self.ResetRegisterValues() self.rdi = saved_state.GetChildMemberWithName('rdi').GetValueAsUnsigned() self.rsi = saved_state.GetChildMemberWithName('rsi').GetValueAsUnsigned() self.rdx = saved_state.GetChildMemberWithName('rdx').GetValueAsUnsigned() self.r10 = saved_state.GetChildMemberWithName('r10').GetValueAsUnsigned() self.r8 = saved_state.GetChildMemberWithName('r8').GetValueAsUnsigned() self.r9 = saved_state.GetChildMemberWithName('r9').GetValueAsUnsigned() self.r15 = saved_state.GetChildMemberWithName('r15').GetValueAsUnsigned() self.r14 = saved_state.GetChildMemberWithName('r14').GetValueAsUnsigned() self.r13 = saved_state.GetChildMemberWithName('r13').GetValueAsUnsigned() self.r12 = saved_state.GetChildMemberWithName('r12').GetValueAsUnsigned() self.r11 = saved_state.GetChildMemberWithName('r11').GetValueAsUnsigned() self.rbp = saved_state.GetChildMemberWithName('rbp').GetValueAsUnsigned() self.rbx = saved_state.GetChildMemberWithName('rbx').GetValueAsUnsigned() self.rcx = saved_state.GetChildMemberWithName('rcx').GetValueAsUnsigned() self.rax = saved_state.GetChildMemberWithName('rax').GetValueAsUnsigned() self.rip = saved_state.GetChildMemberWithName('isf').GetChildMemberWithName('rip').GetValueAsUnsigned() self.rflags = saved_state.GetChildMemberWithName('isf').GetChildMemberWithName('rflags').GetValueAsUnsigned() self.rsp = saved_state.GetChildMemberWithName('isf').GetChildMemberWithName('rsp').GetValueAsUnsigned() return self def ReadRegisterDataFromKernelStack(self, kstack_saved_state_addr, kernel_version): saved_state = kernel_version.CreateValueFromExpression(None, '(struct x86_kernel_state *) '+ str(kstack_saved_state_addr)) saved_state = saved_state.Dereference() saved_state = PluginValue(saved_state) self.ResetRegisterValues() self.rbx = saved_state.GetChildMemberWithName('k_rbx').GetValueAsUnsigned() self.rsp = saved_state.GetChildMemberWithName('k_rsp').GetValueAsUnsigned() self.rbp = saved_state.GetChildMemberWithName('k_rbp').GetValueAsUnsigned() self.r12 = saved_state.GetChildMemberWithName('k_r12').GetValueAsUnsigned() self.r13 = saved_state.GetChildMemberWithName('k_r13').GetValueAsUnsigned() self.r14 = saved_state.GetChildMemberWithName('k_r14').GetValueAsUnsigned() self.r15 = saved_state.GetChildMemberWithName('k_r15').GetValueAsUnsigned() self.rip = saved_state.GetChildMemberWithName('k_rip').GetValueAsUnsigned() return self def ReadRegisterDataFromContinuation(self, continuation_ptr): self.ResetRegisterValues() self.rip = continuation_ptr return self def IterateQueue(queue_head, element_ptr_type, element_field_name): """ iterate over a queue in kernel of type queue_head_t. refer to osfmk/kern/queue.h params: queue_head - lldb.SBValue : Value object for queue_head. element_type - lldb.SBType : a pointer type of the element 'next' points to. Typically its structs like thread, task etc.. element_field_name - str : name of the field in target struct. returns: A generator does not return. It is used for iterating. SBValue : an object thats of type (element_type) queue_head->next. Always a pointer object """ queue_head_addr = 0x0 if queue_head.TypeIsPointerType(): queue_head_addr = queue_head.GetValueAsUnsigned() else: queue_head_addr = queue_head.GetAddress().GetLoadAddress(osplugin_target_obj) cur_elt = queue_head.GetChildMemberWithName('next') while True: if not cur_elt.IsValid() or cur_elt.GetValueAsUnsigned() == 0 or cur_elt.GetValueAsUnsigned() == queue_head_addr: break elt = cur_elt.Cast(element_ptr_type) yield elt cur_elt = elt.GetChildMemberWithName(element_field_name).GetChildMemberWithName('next') def GetUniqueSessionID(process_obj): """ Create a unique session identifier. params: process_obj: lldb.SBProcess object refering to connected process. returns: int - a unique number identified by processid and stopid. """ session_key_str = "" if hasattr(process_obj, "GetUniqueID"): session_key_str += str(process_obj.GetUniqueID()) + ":" else: session_key_str += "0:" if hasattr(process_obj, "GetStopID"): session_key_str += str(process_obj.GetStopID()) else: session_key_str +="1" return hash(session_key_str) (archX86_64, archARMv7, archI386, archARMv8) = ("x86_64", "armv7", "i386", "arm64") class OperatingSystemPlugIn(object): """Class that provides data for an instance of a LLDB 'OperatingSystemPython' plug-in class""" def __init__(self, process): '''Initialization needs a valid.SBProcess object''' self.process = None self.registers = None self.threads = None self.thread_cache = {} self.current_session_id = 0 self.kdp_thread = None if type(process) is lldb.SBProcess and process.IsValid(): global osplugin_target_obj self.process = process self._target = process.target osplugin_target_obj = self._target self.current_session_id = GetUniqueSessionID(self.process) self.version = self._target.FindGlobalVariables('version', 1).GetValueAtIndex(0) self.kasan_tbi = self._target.FindGlobalVariables('kasan_tbi_enabled', 1).GetValueAtIndex(0) self.kernel_stack_size = self._target.FindGlobalVariables('kernel_stack_size', 1).GetValueAtIndex(0).GetValueAsUnsigned() self.kernel_context_size = 0 self.connected_over_kdp = False # connected_to_debugserver signifies if we are connected to astris or other gdbserver instance # that has the correct thread state for on core threads. For kdp and coredumps we rely on in memory # state of threads. self.connected_to_debugserver = True plugin_string = self.process.GetPluginName().lower() if plugin_string.find("kdp") >=0: self.connected_over_kdp = True self.connected_to_debugserver = False #print "version", self.version, "kernel_stack_size", self.kernel_stack_size, "context_size", self.kernel_context_size self.threads = None # Will be an dictionary containing info for each thread triple = self.process.target.triple arch = triple.split('-')[0].lower() self.target_arch = "" self.kernel_context_size = 0 if arch == archX86_64 : self.target_arch = archX86_64 print("Target arch: x86_64") self.register_set = X86_64RegisterSet() self.kernel_context_size = self._target.FindFirstType('x86_kernel_state').GetByteSize() self.kernel_thread_state_size = self._target.FindFirstType('struct thread_kernel_state').GetByteSize() elif arch.startswith(archARMv7) : self.target_arch = arch print("Target arch: " + self.target_arch) self.register_set = Armv7_RegisterSet() elif arch.startswith(archARMv8): self.target_arch = arch print("Target arch: " + self.target_arch) self.register_set = Armv8_RegisterSet() # connection intel arm # kdp Memory Memory # gdb Server Server # coredump Memory Server if not self.connected_over_kdp : if plugin_string.find('core') >= 0 and self.target_arch == archX86_64: self.connected_to_debugserver = False self.registers = self.register_set.register_info if self.connected_to_debugserver: print("Connected to live debugserver or arm core. Will associate on-core threads to registers reported by server.") else: print("Instantiating threads completely from saved state in memory.") def create_thread(self, tid, context): def strip_tbi(v): if self.kasan_tbi and v != 0: v |= (0xFF << 56) return v # Strip TBI explicitly in case create_thread() is called externally. context = strip_tbi(context) # tid == deadbeef means its a custom thread which kernel does not know of. if tid == 0xdeadbeef : # tid manipulation should be the same as in "switchtoregs" code in lldbmacros/process.py . tid = 0xdead0000 | (context & ~0xffff0000) tid = tid & 0xdeadffff thread_obj = { 'tid' : tid, 'ptr' : context, 'name' : 'switchtoregs' + hex(context), 'queue' : 'None', 'state' : 'stopped', 'stop_reason' : 'none' } self.thread_cache[tid] = thread_obj return thread_obj th_ptr = context th = self.version.CreateValueFromExpression(str(th_ptr), '(struct thread *)' + str(th_ptr)) thread_id = th.GetChildMemberWithName('thread_id').GetValueAsUnsigned() if tid != thread_id: print("FATAL ERROR: Creating thread from memory 0x%x with tid in mem=%d when requested tid = %d " % (context, thread_id, tid)) return None wait_queue = strip_tbi(th.GetChildMemberWithName('wait_queue').GetValueAsUnsigned()) thread_obj = { 'tid' : thread_id, 'ptr' : th.GetValueAsUnsigned(), 'name' : hex(th.GetValueAsUnsigned()).rstrip('L'), 'queue' : hex(wait_queue).rstrip('L'), 'state' : 'stopped', 'stop_reason' : 'none' } if self.current_session_id != GetUniqueSessionID(self.process): self.thread_cache = {} self.current_session_id = GetUniqueSessionID(self.process) self.thread_cache[tid] = thread_obj return thread_obj def get_thread_info(self): self.kdp_thread = None self.kdp_state = None if self.connected_over_kdp : kdp = self._target.FindGlobalVariables('kdp',1).GetValueAtIndex(0) kdp_state = kdp.GetChildMemberWithName('saved_state') kdp_thread = self._strip_thread_tbi(kdp.GetChildMemberWithName('kdp_thread')) if kdp_thread and kdp_thread.GetValueAsUnsigned() != 0: self.kdp_thread = kdp_thread self.kdp_state = kdp_state kdp_thid = kdp_thread.GetChildMemberWithName('thread_id').GetValueAsUnsigned() self.create_thread(kdp_thid, kdp_thread.GetValueAsUnsigned()) self.thread_cache[kdp_thid]['core']=0 retval = [self.thread_cache[kdp_thid]] return retval else: print("FATAL FAILURE: Unable to find kdp_thread state for this connection.") return [] num_threads = self._target.FindGlobalVariables('threads_count',1).GetValueAtIndex(0).GetValueAsUnsigned() #In case we are caught before threads are initialized. Fallback to threads known by astris/gdb server. if num_threads <=0 : return [] self.current_session_id = GetUniqueSessionID(self.process) self.threads = [] self.thread_cache = {} self.processors = [] try: processor_list_val = PluginValue(self._target.FindGlobalVariables('processor_list',1).GetValueAtIndex(0)) while processor_list_val.IsValid() and processor_list_val.GetValueAsUnsigned() !=0 : th = self._strip_thread_tbi(processor_list_val.GetChildMemberWithName('active_thread')) th_id = th.GetChildMemberWithName('thread_id').GetValueAsUnsigned() cpu_id = processor_list_val.GetChildMemberWithName('cpu_id').GetValueAsUnsigned() self.processors.append({'active_thread': th.GetValueAsUnsigned(), 'cpu_id': cpu_id}) self.create_thread(th_id, th.GetValueAsUnsigned()) if self.connected_to_debugserver: self.thread_cache[th_id]['core'] = cpu_id self.thread_cache[th_id]['queue'] = "cpu-%d" % int(cpu_id) nth = self.thread_cache[th_id] self.threads.append(nth) self.thread_cache[nth['tid']] = nth processor_list_val = processor_list_val.GetChildMemberWithName('processor_list') except KeyboardInterrupt as ke: print("OS Plugin Interrupted during thread loading process. \nWARNING:Thread registers and backtraces may not be accurate.") return self.threads if hasattr(self.process, 'CreateOSPluginThread'): return self.threads # FIXME remove legacy code try: thread_q_head = self._target.FindGlobalVariables('threads', 1).GetValueAtIndex(0) thread_type = self._target.FindFirstType('thread') thread_ptr_type = thread_type.GetPointerType() for th in IterateQueue(thread_q_head, thread_ptr_type, 'threads'): th = self._strip_thread_tbi(th) th_id = th.GetChildMemberWithName('thread_id').GetValueAsUnsigned() self.create_thread(th_id, th.GetValueAsUnsigned()) nth = self.thread_cache[th_id] for cputhread in self.processors: if cputhread['active_thread'] == nth['ptr']: nth['core'] = cputhread['cpu_id'] self.threads.append( nth ) except KeyboardInterrupt as ke: print("OS Plugin Interrupted during thread loading process. \nWARNING:Thread registers and backtraces may not be accurate.") return self.threads # end legacy code return self.threads def get_register_info(self): if self.registers == None: print("Register Information not found ") return self.register_set.register_info def get_register_data(self, tid): thobj = None try: regs = self.register_set if self.current_session_id != GetUniqueSessionID(self.process): self.thread_cache = {} self.current_session_id = GetUniqueSessionID(self.process) if tid in self.thread_cache: #Check if the thread is a fake one. Then create and return registers directly if self.thread_cache[tid]['name'].find('switchtoregs') == 0: savedstateobj = self.version.CreateValueFromExpression(None, '(uintptr_t *) ' + str(self.thread_cache[tid]['ptr'])) regs.ReadRegisterDataFromKDPSavedState(savedstateobj, self.version) return regs.GetPackedRegisterState() thobj = self.version.CreateValueFromExpression(self.thread_cache[tid]['name'], '(struct thread *)' + str(self.thread_cache[tid]['ptr'])) if thobj == None : print("FATAL ERROR: Could not find thread with id %d" % tid) regs.ResetRegisterValues() return regs.GetPackedRegisterState() if self.kdp_thread and self.kdp_thread.GetValueAsUnsigned() == thobj.GetValueAsUnsigned(): regs.ReadRegisterDataFromKDPSavedState(self.kdp_state, self.version) return regs.GetPackedRegisterState() if int(PluginValue(thobj).GetChildMemberWithName('kernel_stack').GetValueAsUnsigned()) != 0 : if self.target_arch == archX86_64 : # we do have a stack so lets get register information saved_state_addr = PluginValue(thobj).GetChildMemberWithName('kernel_stack').GetValueAsUnsigned() + self.kernel_stack_size - self.kernel_thread_state_size regs.ReadRegisterDataFromKernelStack(saved_state_addr, self.version) return regs.GetPackedRegisterState() elif self.target_arch.startswith(archARMv7) and int(PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsUnsigned()) != 0: #we have stack on the machine.kstackptr. saved_state_addr = PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsUnsigned() regs.ReadRegisterDataFromKernelStack(saved_state_addr, self.version) return regs.GetPackedRegisterState() elif self.target_arch.startswith(archARMv8) and int(PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsUnsigned()) != 0: saved_state_addr = PluginValue(thobj).GetChildMemberWithName('machine').GetChildMemberWithName('kstackptr').GetValueAsAddress() arm_ctx = PluginValue(self.version.CreateValueFromExpression(None, '(struct arm_kernel_context *) ' + str(saved_state_addr))) arm_ss_addr = arm_ctx.GetChildMemberWithName('ss').GetLoadAddress() regs.ReadRegisterDataFromKernelStack(arm_ss_addr, self.version) return regs.GetPackedRegisterState() elif self.target_arch == archX86_64 or self.target_arch.startswith(archARMv7) or self.target_arch.startswith(archARMv8): regs.ReadRegisterDataFromContinuation( PluginValue(thobj).GetChildMemberWithName('continuation').GetValueAsAddress()) return regs.GetPackedRegisterState() #incase we failed very miserably except KeyboardInterrupt as ke: print("OS Plugin Interrupted during thread register load. \nWARNING:Thread registers and backtraces may not be accurate. for tid = %d" % tid) regs.ResetRegisterValues() print("FATAL ERROR: Failed to get register state for thread id 0x%x " % tid) print(thobj) return regs.GetPackedRegisterState() def _strip_thread_tbi(self, th): if not self.kasan_tbi: return th addr = th.GetValueAsAddress() return self.version.CreateValueFromExpression(str(addr), '(struct thread *)' + str(addr)) |