qt-creator/share/qtcreator/dumper/lbridge.py

import inspect
import os
#import traceback

cdbLoaded = False
lldbLoaded = False
gdbLoaded = False

#######################################################################
#
# Helpers
#
#######################################################################

currentDir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
#print "DIR: %s " % currentDir

def warn(message):
    print "XXX: %s\n" % message.encode("latin1")

PointerCode = None
ArrayCode = None
StructCode = None
UnionCode = None
EnumCode = None
FlagsCode = None
FunctionCode = None
IntCode = None
FloatCode = None
VoidCode = None
SetCode = None
RangeCode = None
StringCode = None
BitStringCode = None
ErrorTypeCode = None
MethodCode = None
MethodPointerCode = None
MemberPointerCode = None
ReferenceCode = None
CharCode = None
BoolCode = None
ComplexCode = None
TypedefCode = None
NamespaceCode = None
SimpleValueCode = None # LLDB only


#warn("LOADING LLDB")

# Data members
SimpleValueCode = 100
StructCode = 101
PointerCode = 102

# Breakpoints. Keep synchronized with BreakpointType in breakpoint.h
UnknownType = 0
BreakpointByFileAndLine = 1
BreakpointByFunction = 2
BreakpointByAddress = 3
BreakpointAtThrow = 4
BreakpointAtCatch = 5
BreakpointAtMain = 6
BreakpointAtFork = 7
BreakpointAtExec = 8
BreakpointAtSysCall = 10
WatchpointAtAddress = 11
WatchpointAtExpression = 12
BreakpointOnQmlSignalEmit = 13
BreakpointAtJavaScriptThrow = 14


def registerCommand(name, func):
    pass

class Type:
    def __init__(self, var):
        self.raw = var
        if var.num_children == 0:
            self.code = SimpleValueCode
        else:
            self.code = StructCode
        self.value_type = var.value_type

    def __str__(self):
        #try:
            return self.raw.type.name
        #except:
        #    return "<illegal type>"

    def fieldCount(self):
        return self.raw.num_children

    def unqualified(self):
        return self

    def strip_typedefs(self):
        return self

class Value:
    def __init__(self, var):
        self.raw = var
        self.is_optimized_out = False
        self.address = var.addr
        self.type = Type(var)
        self.name = var.name

    def __str__(self):
        return str(self.raw.value)

    def __getitem__(self, name):
        return None if self.raw is None else  self.raw.GetChildMemberWithName(name)

    def fields(self):
        return [Value(self.raw.GetChildAtIndex(i)) for i in range(self.raw.num_children)]

def currentFrame():
    currentThread = lldb.process.GetThreadAtIndex(0)
    return currentThread.GetFrameAtIndex(0)

def listOfLocals(varList):
    items = []
    for var in currentFrame().variables:
        item = LocalItem()
        item.iname = "local." + var.name
        item.name = var.name
        item.value = Value(var)
        items.append(item)
    return items

def extractFields(value):
    return value.fields()

def fieldCount(type):
    return type.fieldCount();

def threadsData(options):
    result = "threads={threads=["
    for thread in lldb.process.threads:
        result += "{id=\"%d\"" % thread.id
        result += ",target-id=\"%s\"" % thread.id
        result += ",index=\"%s\"" % thread.idx
        result += ",stop-reason=\"%s\"" % thread.stop_reason

        if thread.IsSuspended():
            result += ",state=\"stopped\""
        else:
            result += ",state=\"running\""

        if not thread.name is None:
            result += ",name=\"%s\"" % thread.name

        result += ",frame={"
        frame = thread.GetFrameAtIndex(0)
        result += "pc=\"%s\"" % frame.pc
        result += ",addr=\"%s\"" % frame.pc
        result += ",fp=\"%s\"" % frame.fp
        result += ",func=\"%s\"" % frame.function.name
        result += ",line=\"%s\"" % frame.line_entry.line
        result += ",fullname=\"%s\"" % frame.line_entry.file
        result += ",file=\"%s\"" % frame.line_entry.file
        result += "}},"

    result += "],current-thread-id=\"%s\"}," % lldb.process.selected_thread.id
    return result

# See lldb.StateType
stateNames = ["invalid", "unloaded", "connected", "attaching", "launching", "stopped",
    "running", "stepping", "crashed", "detached", "exited", "suspended" ]

def stateData(options):
    state = lldb.process.GetState()
    return "state=\"%s\"," % stateNames[state]

def locationData(options):
    thread = lldb.process.GetSelectedThread()
    frame = thread.GetFrameAtIndex(0)
    return "location={file=\"%s\",line=\"%s\",addr=\"%s\"}," \
        % (frame.line_entry.file, frame.line_entry.line, frame.pc)

def stackData(options, threadId):
    try:
        thread = lldb.process.GetThreadById(threadId)
    except:
        thread = lldb.process.GetThreadAtIndex(0)
    result = "stack={frames=["
    for frame in thread.frames:
        result += "{pc=\"%s\"" % frame.pc
        result += ",level=\"%d\"" % frame.idx
        result += ",addr=\"%s\"" % frame.pc
        result += ",fp=\"%s\"" % frame.fp
        result += ",func=\"%s\"" % frame.function.name
        result += ",line=\"%s\"" % frame.line_entry.line
        result += ",fullname=\"%s\"" % frame.line_entry.file
        result += ",usable=\"1\""
        result += ",file=\"%s\"}," % frame.line_entry.file

    hasmore = "0"
    result += "],hasmore=\"%s\"}, " % hasmore
    return result

def listModules():
    result = "result={modules=["
    for module in lldb.target.modules:
        result += "{file=\"%s\"" % module.file.fullpath
        result += ",name=\"%s\"" % module.file.basename
        #result += ",addrsize=\"%s\"" % module.addr_size
        #result += ",triple=\"%s\"" % module.triple
        #result += ",sections={"
        #for section in module.sections:
        #    result += "[name=\"%s\"" % section.name
        #    result += ",addr=\"%s\"" % section.addr
        #    result += ",size=\"%s\"]," % section.size
        #result += "}"
        result += "},"
    result += "]}"
    return result

def breakpoint_function_wrapper(baton, process, frame, bp_loc):
    result = "*stopped"
    result += ",line=\"%s\"" % frame.line_entry.line
    result += ",file=\"%s\"" % frame.line_entry.file
    warn("WRAPPER: %s " %result)
    return result

def initLldb():
    pass

def dumpBreakpoint(bp, modelId):
    cond = bp.GetCondition()
    result  = "{lldbid=\"%s\"" % bp.GetID()
    result += ",modelid=\"%s\"" % modelId
    result += ",hitcount=\"%s\"" % bp.GetHitCount()
    result += ",threadid=\"%s\"" % bp.GetThreadID()
    result += ",oneshot=\"%s\"" % (1 if bp.IsOneShot() else 0)
    result += ",enabled=\"%s\"" % (1 if bp.IsEnabled() else 0)
    result += ",valid=\"%s\"" % (1 if bp.IsValid() else 0)
    result += ",condition=\"%s\"" % ("" if cond is None else cond)
    result += ",ignorecount=\"%s\"" % bp.GetIgnoreCount()
    result += ",locations=["
    for i in range(bp.GetNumLocations()):
        loc = bp.GetLocationAtIndex(i)
        addr = loc.GetAddress()
        result += "{locid=\"%s\"" % loc.GetID()
        result += ",func=\"%s\"" % addr.GetFunction().GetName()
        result += ",enabled=\"%s\"" % (1 if loc.IsEnabled() else 0)
        result += ",resolved=\"%s\"" % (1 if loc.IsResolved() else 0)
        result += ",valid=\"%s\"" % (1 if loc.IsValid() else 0)
        result += ",ignorecount=\"%s\"" % loc.GetIgnoreCount()
        result += ",addr=\"%s\"}," % loc.GetLoadAddress()
    result += "]},"
    return result

def onBreak():
    lldb.debugger.HandleCommand("settings set frame-format ''")
    lldb.debugger.HandleCommand("settings set thread-format ''")
    result = "*stopped,frame={....}"
    print result

def handleBreakpoints(options, toAdd, toChange, toRemove):
    #target = lldb.debugger.CreateTargetWithFileAndArch (exe, lldb.LLDB_ARCH_DEFAULT)
    target = lldb.debugger.GetTargetAtIndex(0)

    result = "result={bkpts={added=["

    for bp in toAdd:
        bpType = bp["type"]
        if bpType == BreakpointByFileAndLine:
            bpNew = target.BreakpointCreateByLocation(str(bp["file"]), int(bp["line"]))
        elif bpType == BreakpointByFunction:
            bpNew = target.BreakpointCreateByName(bp["function"])
        elif bpType == BreakpointAtMain:
            bpNew = target.BreakpointCreateByName("main", target.GetExecutable().GetFilename())
        bpNew.SetIgnoreCount(int(bp["ignorecount"]))
        bpNew.SetCondition(str(bp["condition"]))
        bpNew.SetEnabled(int(bp["enabled"]))
        bpNew.SetOneShot(int(bp["oneshot"]))
        #bpNew.SetCallback(breakpoint_function_wrapper, None)
        #bpNew.SetCallback(breakpoint_function_wrapper, None)
        #"breakpoint command add 1 -o \"import time; print time.asctime()\"
        #cmd = "script print(11111111)"
        cmd = "continue"
        #lldb.debugger.HandleCommand(
        #    "breakpoint command add -o 'script onBreak()' %s" % bpNew.GetID())

        result += dumpBreakpoint(bpNew, bp["modelid"])

    result += "],changed=["

    for bp in toChange:
        bpChange = target.FindBreakpointByID(int(bp["lldbid"]))
        bpChange.SetIgnoreCount(int(bp["ignorecount"]))
        bpChange.SetCondition(str(bp["condition"]))
        bpChange.SetEnabled(int(bp["enabled"]))
        bpChange.SetOneShot(int(bp["oneshot"]))
        result += dumpBreakpoint(bpChange, bp["modelid"])

    result += "],removed=["

    for bp in toRemove:
        bpDead = target.BreakpointDelete(int(bp["lldbid"]))
        result += "{modelid=\"%s\"}" % bp["modelid"]

    result += "]}}"
    return result

def createStoppedReport(options):
    result = "result={"
    result += bb(options["locals"]) + ","
    result += stackData(options["stack"], lldb.process.selected_thread.id)
    result += threadsData({})
    result += stateData({})
    result += locationData({})
    result += "token=\"%s\"," % options["token"]
    result += "}"
    return result

def createRunReport(options):
    result = "result={"
    #result += stateData({})
    result += "state=\"running\","
    result += "token=\"%s\"," % options["token"]
    result += "}"
    return result

def createReport(options):
    return createStoppedReport(options)

def executeNext(options):
    lldb.thread.StepOver()
    return createRunReport(options)

def executeNextI(options):
    lldb.thread.StepOver()
    return createRunReport(options)

def executeStep(options):
    lldb.thread.StepInto()
    return createRunReport(options)

def executeStepI(options):
    lldb.thread.StepInstOver()
    return createRunReport(options)

def executeStepOut(options):
    #lldb.thread.StepOutOfFrame(None)
    msg = lldb.debugger.HandleCommand("thread step-out")
    # Currently results in
    # "Couldn't find thread plan to implement step type"
    return createRunReport(options)

def executeRunToLine(options, file, line):
    lldb.thread.StepOverUntil(file, line)
    return createRunReport(options)

def executeJumpToLine(options):
    return "result={error={msg='Not implemented'},state='stopped'}"

def continueInferior(options):
    lldb.process.Continue()
    return "result={state=\"running\"}"

def interruptInferior(options):
    lldb.process.Stop()
    return "result={state=\"interrupting\"}"

def setupInferior(options, fileName):
    msg = lldb.debugger.HandleCommand("target create '%s'" % fileName)
    return "result={state=\"inferiorsetupok\",msg=\"%s\"}" % msg

def runEngine(options):
    msg = lldb.debugger.HandleCommand("process launch")
    return "result={state=\"enginerunok\",msg=\"%s\"}" % msg

def activateFrame(options, frame):
    lldb.debugger.HandleCommand("frame select " + frame)
    return createStoppedReport(options)

def selectThread(options, thread):
    lldb.debugger.HandleCommand("thread select " + thread)
    return createStoppedReport(options)

def requestModuleSymbols(options, frame):
    lldb.debugger.HandleCommand("target module list " + frame)

def executeDebuggerCommand(options, command):
    msg = lldb.debugger.HandleCommand(command)
    result = "result={"
    result += bb(options["locals"]) + ","
    result += stackData(options["stack"], lldb.process.selected_thread.id)
    result += threadsData({})
    result += stateData({})
    result += locationData({})
    result += "token=\"%s\"," % options["token"]
    result += "msg=\"%s\"" % msg
    result += "}"
    return result


lldb.debugger.HandleCommand("settings set auto-confirm on")
#lldb.debugger.HandleCommand("settings set interpreter.prompt-on-quit off")
lldb.debugger.HandleCommand("settings set frame-format ''")
lldb.debugger.HandleCommand("settings set thread-format ''")

execfile(os.path.join(currentDir, "dumper.py"))
execfile(os.path.join(currentDir, "qttypes.py"))

def importPlainDumpers(args):
    pass

def bbsetup(args = ''):
    global qqDumpers, qqFormats, qqEditable
    typeCache = {}

    items = globals()
    for key in items:
        registerDumper(items[key])

bbsetup()

lldbLoaded = True

print "result={state=\"enginesetupok\",dumpers=%s}" % str(qqDumpers.keys()).replace("'", '"')