Sync to trunk HEAD (r43416)

[reactos.git] / reactos / ntoskrnl / rtl / libsupp.c

diff --git a/reactos/ntoskrnl/rtl/libsupp.c b/reactos/ntoskrnl/rtl/libsupp.c
index ced25c1..e3c7e29 100644 (file)
--- a/reactos/ntoskrnl/rtl/libsupp.c
+++ b/reactos/ntoskrnl/rtl/libsupp.c
@@ -28,6 +28,30 @@ SIZE_T RtlpAllocDeallocQueryBufferSize = 128;
 
 /* FUNCTIONS *****************************************************************/
 
+PVOID
+NTAPI
+RtlpLookupModuleBase(
+    PVOID Address)
+{
+    PLDR_DATA_TABLE_ENTRY LdrEntry;
+    BOOLEAN InSystem;
+    PVOID p;
+
+    /* Get the base for this file */
+    if ((ULONG_PTR)Address > (ULONG_PTR)MmHighestUserAddress)
+    {
+        /* We are in kernel */
+        p = KiPcToFileHeader(Address, &LdrEntry, FALSE, &InSystem);
+    }
+    else
+    {
+        /* We are in user land */
+        p = KiRosPcToUserFileHeader(Address, &LdrEntry);
+    }
+
+    return p;
+}
+
 VOID
 NTAPI
 RtlInitializeRangeListPackage(VOID)
@@ -218,7 +242,7 @@ RtlpHandleDpcStackException(IN PEXCEPTION_REGISTRATION_RECORD RegistrationFrame,
     return FALSE;
 }
 
-#ifndef _ARM_
+#if !defined(_ARM_) && !defined(_AMD64_)
 
 BOOLEAN
 NTAPI
@@ -413,6 +437,19 @@ RtlWalkFrameChain(OUT PVOID *Callers,
 
 #endif
 
+#ifdef _AMD64_
+VOID
+NTAPI
+RtlpGetStackLimits(
+    OUT PULONG_PTR LowLimit,
+    OUT PULONG_PTR HighLimit)
+{
+    PKTHREAD CurrentThread = KeGetCurrentThread();
+    *HighLimit = (ULONG_PTR)CurrentThread->InitialStack;
+    *LowLimit = (ULONG_PTR)CurrentThread->StackLimit;
+}
+#endif
+
 /* RTL Atom Tables ************************************************************/
 
 NTSTATUS