internal static unsafe object[] DoUnwind(Unwinder u, UIntPtr exit_address, bool get_symbols = true)
{
System.Collections.ArrayList ret = new System.Collections.ArrayList();
UIntPtr pc;
while (u.CanContinue() && ((pc = u.GetInstructionPointer()) != exit_address))
{
void * offset;
string sym;
if (get_symbols)
{
sym = JitOperations.GetNameOfAddress((void *)pc, out offset);
}
else
{
offset = (void *)pc;
sym = "offset_0";
}
ret.Add(new UnwinderEntry {
ProgramCounter = pc, Symbol = sym, Offset = (UIntPtr)offset
});
u.UnwindOne();
}
return(ret.ToArray());
}
static System.Reflection.Assembly GetExecutingAssembly()
{
// Return the System.Reflection.Assembly object of the code which called this function
libsupcs.Unwinder u = Program.arch.GetUnwinder();
u.UnwindOne();
libsupcs.TysosMethod prev_method = u.GetMethodInfo();
if (prev_method == null || prev_method.DeclaringType == null)
{
/* We don't have enough information to determine the currently executing
* method (and therefore assembly), so return mscorlib instead */
return(ReinterpretAsAssembly(mscorlib_assembly));
}
return(prev_method.DeclaringType.Assembly);
}
static void GetExecutingAssembly(StackCrawlMarkHandle scmh, TysosModule.ObjectHandleOnStack ret)
{
int scm = *(int *)scmh.ptr;
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: scm: " + scm.ToString());
Unwinder u = OtherOperations.GetUnwinder();
u.UnwindOne();
u.UnwindOne(); // we are double-nested within coreclr so unwind this and calling method (GetExecutingAssembly(ref StackMarkHandle)) first
switch (scm)
{
case 0:
break;
case 1:
u.UnwindOne();
break;
case 2:
u.UnwindOne();
u.UnwindOne();
break;
default:
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: unsupported scm: " + scm.ToString());
throw new NotSupportedException();
}
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: requested pc " + ((ulong)u.GetInstructionPointer()).ToString("X"));
void *offset;
var name = JitOperations.GetNameOfAddress((void *)u.GetInstructionPointer(), out offset);
if (name == null)
{
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: symbol not found");
*ret.ptr = null;
return;
}
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: found method " + name);
var ts = Metadata.MSCorlib.DemangleObject(name);
if (ts == null)
{
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: demangler returned null");
*ret.ptr = null;
return;
}
var m = ts.Metadata;
if (m == null)
{
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: returned ts had no assembly");
*ret.ptr = null;
return;
}
var aptr = (m.file as Metadata.BinaryInterface).b;
var retm = TysosModule.GetModule(aptr, m.AssemblyName);
System.Diagnostics.Debugger.Log(0, "libsupcs", "TysosAssembly.GetExecutingAssembly: returning " + retm.ass.assemblyName);
*ret.ptr = CastOperations.ReinterpretAsPointer(retm.ass);
}
