public string GetGuestStackTrace(ARMeilleure.State.ExecutionContext context)
{
EnsureLoaded();
StringBuilder trace = new StringBuilder();
void AppendTrace(long address)
{
Image image = GetImage(address, out int imageIndex);
if (image == null || !TryGetSubName(image, address, out string subName))
{
subName = $"Sub{address:x16}";
}
else if (subName.StartsWith("_Z"))
{
subName = Demangler.Parse(subName);
}
if (image != null)
{
long offset = address - image.BaseAddress;
string imageName = GetGuessedNsoNameFromIndex(imageIndex);
trace.AppendLine($" {imageName}:0x{offset:x8} {subName}");
}
else
{
trace.AppendLine($" ??? {subName}");
}
}
// TODO: ARM32.
long framePointer = (long)context.GetX(29);
trace.AppendLine($"Process: {_owner.Name}, PID: {_owner.Pid}");
while (framePointer != 0)
{
if ((framePointer & 7) != 0 ||
!_owner.CpuMemory.IsMapped(framePointer) ||
!_owner.CpuMemory.IsMapped(framePointer + 8))
{
break;
}
// Note: This is the return address, we need to subtract one instruction
// worth of bytes to get the branch instruction address.
AppendTrace(_owner.CpuMemory.ReadInt64(framePointer + 8) - 4);
framePointer = _owner.CpuMemory.ReadInt64(framePointer);
}
return(trace.ToString());
}
public string GetGuestStackTrace(ARMeilleure.State.ExecutionContext context)
{
EnsureLoaded();
StringBuilder trace = new StringBuilder();
void AppendTrace(ulong address)
{
Image image = GetImage(address, out int imageIndex);
if (image == null || !TryGetSubName(image, address, out string subName))
{
subName = $"Sub{address:x16}";
}
else if (subName.StartsWith("_Z"))
{
subName = Demangler.Parse(subName);
}
if (image != null)
{
ulong offset = address - image.BaseAddress;
string imageName = GetGuessedNsoNameFromIndex(imageIndex);
trace.AppendLine($" {imageName}:0x{offset:x8} {subName}");
}
else
{
trace.AppendLine($" ??? {subName}");
}
}
trace.AppendLine($"Process: {_owner.Name}, PID: {_owner.Pid}");
if (context.IsAarch32)
{
ulong framePointer = context.GetX(11);
while (framePointer != 0)
{
if ((framePointer & 3) != 0 ||
!_owner.CpuMemory.IsMapped(framePointer) ||
!_owner.CpuMemory.IsMapped(framePointer + 4))
{
break;
}
AppendTrace(_owner.CpuMemory.Read <uint>(framePointer + 4));
framePointer = _owner.CpuMemory.Read <uint>(framePointer);
}
}
else
{
ulong framePointer = context.GetX(29);
while (framePointer != 0)
{
if ((framePointer & 7) != 0 ||
!_owner.CpuMemory.IsMapped(framePointer) ||
!_owner.CpuMemory.IsMapped(framePointer + 8))
{
break;
}
AppendTrace(_owner.CpuMemory.Read <ulong>(framePointer + 8));
framePointer = _owner.CpuMemory.Read <ulong>(framePointer);
}
}
return(trace.ToString());
}
public KernelResult Initialize(
ulong entrypoint,
ulong argsPtr,
ulong stackTop,
int priority,
int defaultCpuCore,
KProcess owner,
ThreadType type = ThreadType.User)
{
if ((uint)type > 3)
{
throw new ArgumentException($"Invalid thread type \"{type}\".");
}
PreferredCore = defaultCpuCore;
AffinityMask |= 1L << defaultCpuCore;
SchedFlags = type == ThreadType.Dummy
? ThreadSchedState.Running
: ThreadSchedState.None;
CurrentCore = PreferredCore;
DynamicPriority = priority;
BasePriority = priority;
ObjSyncResult = KernelResult.ThreadNotStarted;
_entrypoint = entrypoint;
if (type == ThreadType.User)
{
if (owner.AllocateThreadLocalStorage(out _tlsAddress) != KernelResult.Success)
{
return(KernelResult.OutOfMemory);
}
TlsDramAddress = owner.MemoryManager.GetDramAddressFromVa(_tlsAddress);
MemoryHelper.FillWithZeros(owner.CpuMemory, (long)_tlsAddress, KTlsPageInfo.TlsEntrySize);
}
bool is64Bits;
if (owner != null)
{
Owner = owner;
owner.IncrementReferenceCount();
owner.IncrementThreadCount();
is64Bits = (owner.MmuFlags & 1) != 0;
}
else
{
is64Bits = true;
}
HostThread = new Thread(() => ThreadStart(entrypoint));
Context = new ARMeilleure.State.ExecutionContext();
bool isAarch32 = (Owner.MmuFlags & 1) == 0;
Context.IsAarch32 = isAarch32;
Context.SetX(0, argsPtr);
if (isAarch32)
{
Context.SetX(13, (uint)stackTop);
}
else
{
Context.SetX(31, stackTop);
}
Context.CntfrqEl0 = 19200000;
Context.Tpidr = (long)_tlsAddress;
owner.SubscribeThreadEventHandlers(Context);
ThreadUid = System.GetThreadUid();
_hasBeenInitialized = true;
if (owner != null)
{
owner.AddThread(this);
if (owner.IsPaused)
{
System.CriticalSection.Enter();
if (ShallBeTerminated || SchedFlags == ThreadSchedState.TerminationPending)
{
System.CriticalSection.Leave();
return(KernelResult.Success);
}
_forcePauseFlags |= ThreadSchedState.ProcessPauseFlag;
CombineForcePauseFlags();
System.CriticalSection.Leave();
}
}
return(KernelResult.Success);
}
