예제 #1
0
파일: UbiNode.cpp 프로젝트: mmatyas/mozjs
bool
RootList::init(HandleObject debuggees)
{
    MOZ_ASSERT(debuggees && JS::dbg::IsDebugger(ObjectValue(*debuggees)));
    js::Debugger *dbg = js::Debugger::fromJSObject(debuggees);

    ZoneSet debuggeeZones;
    if (!debuggeeZones.init())
        return false;

    for (js::WeakGlobalObjectSet::Range r = dbg->allDebuggees(); !r.empty(); r.popFront()) {
        if (!debuggeeZones.put(r.front()->zone()))
            return false;
    }

    if (!init(debuggeeZones))
        return false;

    // Ensure that each of our debuggee globals are in the root list.
    for (js::WeakGlobalObjectSet::Range r = dbg->allDebuggees(); !r.empty(); r.popFront()) {
        if (!addRoot(JS::ubi::Node(static_cast<JSObject *>(r.front())),
                     MOZ_UTF16("debuggee global")))
        {
            return false;
        }
    }

    return true;
}
예제 #2
0
// If we are only taking a snapshot of the heap affected by the given set of
// globals, find the set of zones the globals are allocated within. Returns
// false on OOM failure.
static bool
PopulateZonesWithGlobals(ZoneSet& zones, AutoObjectVector& globals)
{
  if (!zones.init())
    return false;

  unsigned length = globals.length();
  for (unsigned i = 0; i < length; i++) {
    if (!zones.put(GetObjectZone(globals[i])))
      return false;
  }

  return true;
}
예제 #3
0
bool
RootList::init(CompartmentSet& debuggees)
{
    EdgeVector allRootEdges;
    EdgeVectorTracer tracer(rt, &allRootEdges, wantNames);

    ZoneSet debuggeeZones;
    if (!debuggeeZones.init())
        return false;
    for (auto range = debuggees.all(); !range.empty(); range.popFront()) {
        if (!debuggeeZones.put(range.front()->zone()))
            return false;
    }

    js::TraceRuntime(&tracer);
    if (!tracer.okay)
        return false;
    TraceIncomingCCWs(&tracer, debuggees);
    if (!tracer.okay)
        return false;

    for (EdgeVector::Range r = allRootEdges.all(); !r.empty(); r.popFront()) {
        Edge& edge = r.front();

        JSCompartment* compartment = edge.referent.compartment();
        if (compartment && !debuggees.has(compartment))
            continue;

        Zone* zone = edge.referent.zone();
        if (zone && !debuggeeZones.has(zone))
            continue;

        if (!edges.append(mozilla::Move(edge)))
            return false;
    }

    noGC.emplace(rt);
    return true;
}