• msaboff@apple.com's avatar
    JSC: There should be a disassembler for ARM Thumb 2 · ac9f0e52
    msaboff@apple.com authored
    https://bugs.webkit.org/show_bug.cgi?id=115827
    
    Reviewed by Filip Pizlo.
    
    Source/JavaScriptCore: 
    
    Added a new disassembler for ARMv7 Thumb2 instructions for use by the JSC debugging
    and profiling code.  The opcode coverage is currently not complete.  It covers all
    of the integer instructions JSC currently emits, but only a limited number of
    floating point opcodes.  Currently that is just the 64 bit vmov and vmsr instructions.
    
    The disassembler is structured as a base opcode class ARMv7DOpcode with sub-classes
    for each instruction group.  There is a public format method that does the bulk of
    the disassembly work.  There are two broad sub-classes, ARMv7D16BitOpcode and
    ARMv7D32BitOpcode, for the 16 bit and 32 bit opcodes.  There are sub-classes under
    those two classes for individual and related groups of opcodes.  Instructions are
    "dispatched" to the right subclass via two arrays of linked lists in the inner classes
    OpcodeGroup.  There is one such inner class for each ARMv7D16BitOpcode and ARMv7D32BitOpcode.
    Each OpcodeGroup has a mask and a pattern that it applies to the instruction to determine
    that it matches a particular group.  OpcodeGroup uses a static method to reinterpret_cast
    the Opcode object to the right base class for the instruction group for formatting.
    The cast eliminates the need of allocating an object for each decoded instruction.
    Unknown instructions are formatted as ".word 1234" or ".long 12345678" depending whether
    the instruction is 16 or 32 bit.
    
    * JavaScriptCore.xcodeproj/project.pbxproj:
    * disassembler/ARMv7: Added.
    * disassembler/ARMv7/ARMv7DOpcode.cpp: Added.
    (ARMv7Disassembler):
    (OpcodeGroupInitializer):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::init):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::startITBlock):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::saveITConditionAt):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::fetchOpcode):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::disassemble):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::bufferPrintf):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendInstructionName):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendRegisterName):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendRegisterList):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendFPRegisterName):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::init):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::doDisassemble):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::defaultFormat):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddRegisterT2::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSPPlusImmediate::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate3::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate8::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchConditionalT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchExchangeT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchT2::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareImmediateT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareRegisterT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareRegisterT2::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegisterT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeGeneratePCRelativeAddress::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadFromLiteralPool::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterImmediate::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterOffsetT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterSPRelative::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLogicalImmediateT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscAddSubSP::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscBreakpointT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscByteHalfwordOps::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscCompareAndBranch::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscHint16::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscIfThenT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscPushPop::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMoveImmediateT1::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMoveRegisterT1::format):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::init):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::doDisassemble):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::defaultFormat):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeConditionalBranchT3::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchOrBranchLink::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingModifiedImmediate::appendModifiedImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingModifiedImmediate::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::appendImmShift):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::appendFPRegister):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegShift::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegExtend::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegParallel::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegMisc::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeHint32::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadRegister::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadSignedImmediate::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadUnsignedImmediate::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataPushPopSingle::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleImmediate12::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleImmediate8::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleRegister::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVDoublePrecision::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVSinglePrecision::format):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMSR::format):
    * disassembler/ARMv7/ARMv7DOpcode.h: Added.
    (ARMv7Disassembler):
    (ARMv7DOpcode):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::ARMv7DOpcode):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::is32BitInstruction):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::isFPInstruction):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::conditionName):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::shiftName):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::inITBlock):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::startingITBlock):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::endITBlock):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendInstructionNameNoITBlock):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendSeparator):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendCharacter):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendString):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendShiftType):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendSignedImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendUnsignedImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendPCRelativeOffset):
    (JSC::ARMv7Disassembler::ARMv7DOpcode::appendShiftAmount):
    (ARMv7D16BitOpcode):
    (OpcodeGroup):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::OpcodeGroup::OpcodeGroup):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::OpcodeGroup::setNext):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::OpcodeGroup::next):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::OpcodeGroup::matches):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::OpcodeGroup::format):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::rm):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::rd):
    (JSC::ARMv7Disassembler::ARMv7D16BitOpcode::opcodeGroupNumber):
    (ARMv7DOpcodeAddRegisterT2):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddRegisterT2::rdn):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddRegisterT2::rm):
    (ARMv7DOpcodeAddSPPlusImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSPPlusImmediate::rd):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSPPlusImmediate::immediate8):
    (ARMv7DOpcodeAddSubtract):
    (ARMv7DOpcodeAddSubtractT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractT1::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractT1::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractT1::rm):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractT1::rn):
    (ARMv7DOpcodeAddSubtractImmediate3):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate3::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate3::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate3::immediate3):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate3::rn):
    (ARMv7DOpcodeAddSubtractImmediate8):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate8::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate8::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate8::rdn):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeAddSubtractImmediate8::immediate8):
    (ARMv7DOpcodeBranchConditionalT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchConditionalT1::condition):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchConditionalT1::offset):
    (ARMv7DOpcodeBranchExchangeT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchExchangeT1::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchExchangeT1::rm):
    (ARMv7DOpcodeBranchT2):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchT2::immediate11):
    (ARMv7DOpcodeCompareImmediateT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareImmediateT1::rn):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareImmediateT1::immediate8):
    (ARMv7DOpcodeCompareRegisterT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareRegisterT1::rn):
    (ARMv7DOpcodeCompareRegisterT2):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareRegisterT2::rn):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeCompareRegisterT2::rm):
    (ARMv7DOpcodeDataProcessingRegisterT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegisterT1::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegisterT1::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegisterT1::rm):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegisterT1::rdn):
    (ARMv7DOpcodeGeneratePCRelativeAddress):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeGeneratePCRelativeAddress::rd):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeGeneratePCRelativeAddress::immediate8):
    (ARMv7DOpcodeLoadFromLiteralPool):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadFromLiteralPool::rt):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadFromLiteralPool::immediate8):
    (ARMv7DOpcodeLoadStoreRegisterImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterImmediate::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterImmediate::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterImmediate::immediate5):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterImmediate::rn):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterImmediate::rt):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterImmediate::scale):
    (ARMv7DOpcodeLoadStoreRegisterImmediateWordAndByte):
    (ARMv7DOpcodeLoadStoreRegisterImmediateHalfWord):
    (ARMv7DOpcodeLoadStoreRegisterOffsetT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterOffsetT1::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterOffsetT1::opB):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterOffsetT1::rm):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterOffsetT1::rn):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterOffsetT1::rt):
    (ARMv7DOpcodeLoadStoreRegisterSPRelative):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterSPRelative::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterSPRelative::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterSPRelative::rt):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadStoreRegisterSPRelative::immediate8):
    (ARMv7DOpcodeLogicalImmediateT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLogicalImmediateT1::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLogicalImmediateT1::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLogicalImmediateT1::immediate5):
    (ARMv7DOpcodeMiscAddSubSP):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscAddSubSP::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscAddSubSP::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscAddSubSP::immediate7):
    (ARMv7DOpcodeMiscByteHalfwordOps):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscByteHalfwordOps::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscByteHalfwordOps::op):
    (ARMv7DOpcodeMiscBreakpointT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscBreakpointT1::immediate8):
    (ARMv7DOpcodeMiscCompareAndBranch):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscCompareAndBranch::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscCompareAndBranch::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscCompareAndBranch::immediate6):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscCompareAndBranch::rn):
    (ARMv7DOpcodeMiscHint16):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscHint16::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscHint16::opA):
    (ARMv7DOpcodeMiscIfThenT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscIfThenT1::firstCondition):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscIfThenT1::mask):
    (ARMv7DOpcodeMiscPushPop):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscPushPop::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscPushPop::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMiscPushPop::registerMask):
    (ARMv7DOpcodeMoveImmediateT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMoveImmediateT1::rd):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMoveImmediateT1::immediate8):
    (ARMv7DOpcodeMoveRegisterT1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMoveRegisterT1::rd):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeMoveRegisterT1::rm):
    (ARMv7D32BitOpcode):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::OpcodeGroup::OpcodeGroup):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::OpcodeGroup::setNext):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::OpcodeGroup::next):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::OpcodeGroup::matches):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::OpcodeGroup::format):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::rd):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::rm):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::rn):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::rt):
    (JSC::ARMv7Disassembler::ARMv7D32BitOpcode::opcodeGroupNumber):
    (ARMv7DOpcodeBranchRelative):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchRelative::sBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchRelative::j1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchRelative::j2):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchRelative::immediate11):
    (ARMv7DOpcodeConditionalBranchT3):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeConditionalBranchT3::offset):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeConditionalBranchT3::condition):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeConditionalBranchT3::immediate6):
    (ARMv7DOpcodeBranchOrBranchLink):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchOrBranchLink::offset):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchOrBranchLink::immediate10):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeBranchOrBranchLink::isBL):
    (ARMv7DOpcodeDataProcessingLogicalAndRithmetic):
    (ARMv7DOpcodeDataProcessingModifiedImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingModifiedImmediate::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingModifiedImmediate::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingModifiedImmediate::sBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingModifiedImmediate::immediate12):
    (ARMv7DOpcodeDataProcessingShiftedReg):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::sBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::immediate5):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::type):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::tbBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingShiftedReg::tBit):
    (ARMv7DOpcodeDataProcessingReg):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingReg::op1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingReg::op2):
    (ARMv7DOpcodeDataProcessingRegShift):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegShift::opName):
    (ARMv7DOpcodeDataProcessingRegExtend):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegExtend::opExtendName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegExtend::opExtendAndAddName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegExtend::rotate):
    (ARMv7DOpcodeDataProcessingRegParallel):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegParallel::opName):
    (ARMv7DOpcodeDataProcessingRegMisc):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataProcessingRegMisc::opName):
    (ARMv7DOpcodeHint32):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeHint32::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeHint32::isDebugHint):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeHint32::debugOption):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeHint32::op):
    (ARMv7DOpcodeFPTransfer):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::opH):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::opL):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::rt):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::opC):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::opB):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::vd):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeFPTransfer::vn):
    (ARMv7DOpcodeDataLoad):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataLoad::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataLoad::op):
    (ARMv7DOpcodeLoadRegister):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadRegister::immediate2):
    (ARMv7DOpcodeLoadSignedImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadSignedImmediate::pBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadSignedImmediate::uBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadSignedImmediate::wBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadSignedImmediate::immediate8):
    (ARMv7DOpcodeLoadUnsignedImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLoadUnsignedImmediate::immediate12):
    (ARMv7DOpcodeLongMultipleDivide):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::smlalOpName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::smlaldOpName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::smlsldOpName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::rdLo):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::rdHi):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::op1):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::op2):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::nBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeLongMultipleDivide::mBit):
    (ARMv7DOpcodeDataPushPopSingle):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataPushPopSingle::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataPushPopSingle::op):
    (ARMv7DOpcodeDataStoreSingle):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataStoreSingle::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeDataStoreSingle::op):
    (ARMv7DOpcodeStoreSingleImmediate12):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleImmediate12::immediate12):
    (ARMv7DOpcodeStoreSingleImmediate8):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleImmediate8::pBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleImmediate8::uBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleImmediate8::wBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleImmediate8::immediate8):
    (ARMv7DOpcodeStoreSingleRegister):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeStoreSingleRegister::immediate2):
    (ARMv7DOpcodeUnmodifiedImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::opName):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::shBit):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::bitNumOrSatImmediate):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::immediate5):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::immediate12):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeUnmodifiedImmediate::immediate16):
    (ARMv7DOpcodeVMOVDoublePrecision):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVDoublePrecision::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVDoublePrecision::rt2):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVDoublePrecision::rt):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVDoublePrecision::vm):
    (ARMv7DOpcodeVMOVSinglePrecision):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVSinglePrecision::op):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVSinglePrecision::rt2):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVSinglePrecision::rt):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMOVSinglePrecision::vm):
    (ARMv7DOpcodeVMSR):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMSR::opL):
    (JSC::ARMv7Disassembler::ARMv7DOpcodeVMSR::rt):
    * disassembler/ARMv7Disassembler.cpp: Added.
    (JSC::tryToDisassemble):
    
    Source/WTF: 
    
    Added a new disassembler for ARMv7 Thumb2 instructions for use by the JSC debugging
    and profiling code.  Enabled the disassembler for IOS bulds.
    
    * wtf/Platform.h:
    
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149821 268f45cc-cd09-0410-ab3c-d52691b4dbfc
    ac9f0e52