internal static unsafe void MarkThreadStack(Thread thread)
{
int stackVariable;
UIntPtr stackBase = PageTable.PagePad(new UIntPtr(&stackVariable));
CallStack.SetStackBase(thread, stackBase);
UIntPtr topPageAddr =
PageTable.PageAlign(CallStack.StackBase(thread) - 1);
SetStackPages(topPageAddr, CallStack.StackBase(thread), thread);
UIntPtr regionAddr, regionSize;
bool fUsed = MemoryManager.QueryMemory(topPageAddr,
out regionAddr,
out regionSize);
VTable.Assert(fUsed);
SetStackPages(regionAddr, topPageAddr, thread);
}
internal static unsafe void ClearThreadStack(Thread thread)
{
short threadIndex = (short)thread.threadIndex;
UIntPtr endPage = PageTable.Page(CallStack.StackBase(thread));
UIntPtr startPage = endPage - 1;
VTable.Assert(PageTable.IsStackPage(PageTable.Type(startPage)));
VTable.Assert(PageTable.Extra(startPage) == threadIndex);
while (startPage > 0 &&
PageTable.IsStackPage(PageTable.Type(startPage - 1)) &&
PageTable.Extra(startPage - 1) == threadIndex)
{
startPage--;
}
UIntPtr startAddr = PageTable.PageAddr(startPage);
UIntPtr size = PageTable.RegionSize(endPage - startPage);
SetUnallocatedPages(startAddr, size);
}
internal unsafe static void ReportStackDetails()
{
VTable.DebugPrint("\nStack details:\n");
VTable.DebugPrint("\tTotal number of reserved pages: {0}",
__arglist(TotalNumPages(PageType.Stack)));
for (int i = 0; i < Thread.threadTable.Length; i++)
{
traceablePtrs.Initialize();
traceablePinnedPtrs.Initialize();
Thread t = Thread.threadTable[i];
if (t == null)
{
continue;
}
uint numStackFrames =
CallStack.ScanStack(t, traceablePtrs,
traceablePinnedPtrs);
VTable.DebugPrint("\n\tThread: {0}",
__arglist(i));
VTable.DebugPrint("\n\t\tStack frame count: {0}",
__arglist(numStackFrames));
VTable.DebugPrint("\n\t\tManaged ptrs to static data: {0}",
__arglist
(traceablePtrs.managedPtrsToStaticData));
VTable.DebugPrint("\n\t\tManaged ptrs to stack: {0}",
__arglist(traceablePtrs.managedPtrsToStack));
VTable.DebugPrint("\n\t\tExterior managed heap ptrs: {0}",
__arglist
(traceablePtrs.exteriorManagedHeapPtrs));
VTable.DebugPrint("\n\t\tInterior managed heap ptrs: {0}",
__arglist
(traceablePtrs.interiorManagedHeapPtrs));
#if !SINGULARITY
UIntPtr stackTop = (UIntPtr)CallStack.StackMarker(t);
uint stackSize = 0;
if (stackTop != UIntPtr.Zero)
{
VTable.Assert(CallStack.StackBase(t) > stackTop,
@"t.asmStackBase > stackTop");
stackSize = (uint)(CallStack.StackBase(t) - stackTop);
}
VTable.DebugPrint("\n\t\tApprox. stack size: {0}B",
__arglist(stackSize));
#endif
// REVIEW: Why are these here?
VTable.Assert(traceablePinnedPtrs.
managedPtrsToStaticData == 0,
@"traceablePinnedPtrs.
managedPtrsToStaticData == 0");
VTable.Assert(traceablePinnedPtrs.
managedPtrsToStack == 0,
@"traceablePinnedPtrs.
managedPtrsToStack == 0");
VTable.DebugPrint("\n\t\tPinned managed heap ptrs: {0}",
__arglist
(traceablePinnedPtrs.exteriorManagedHeapPtrs +
traceablePinnedPtrs.interiorManagedHeapPtrs));
}
VTable.DebugPrint("\n");
}