[tkreuzer] 43980: use RtlPcToFileHeader instead of RtlpLookupModuleBase

Author: tkreuzer
Date: Thu Nov  5 21:57:53 2009
New Revision: 43980

URL: http://svn.reactos.org/svn/reactos?rev=43980&view=rev
Log:
use RtlPcToFileHeader instead of RtlpLookupModuleBase

Modified:
    branches/ros-amd64-bringup/reactos/dll/ntdll/rtl/libsupp.c
    branches/ros-amd64-bringup/reactos/lib/rtl/amd64/unwind.c
    branches/ros-amd64-bringup/reactos/ntoskrnl/rtl/libsupp.c

Modified: branches/ros-amd64-bringup/reactos/dll/ntdll/rtl/libsupp.c
URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/dll/nt...
==============================================================================
--- branches/ros-amd64-bringup/reactos/dll/ntdll/rtl/libsupp.c [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/dll/ntdll/rtl/libsupp.c [iso-8859-1] Thu Nov  5 21:57:53 2009
@@ -384,63 +384,6 @@

return NULL;
 }
-
-PVOID
-NTAPI
-RtlpLookupModuleBase(
-    PVOID Address)
-{
-    NTSTATUS Status;
-    MEMORY_BASIC_INFORMATION MemoryInformation;
-    ULONG_PTR Base, Limit;
-    PIMAGE_DOS_HEADER DosHeader;
-    PIMAGE_NT_HEADERS NtHeader;
-
-    Status = NtQueryVirtualMemory(NtCurrentProcess(),
-                                  Address,
-                                  MemoryBasicInformation,
-                                  &MemoryInformation,
-                                  sizeof(MEMORY_BASIC_INFORMATION),
-                                  NULL);
-    if (!NT_SUCCESS(Status))
-    {
-        return NULL;
-    }
-
-    /* FIXME: remove these checks? */
-    Base = (ULONG_PTR)MemoryInformation.BaseAddress;
-    Limit = Base + MemoryInformation.RegionSize;
-    if ( ((ULONG_PTR)Address < Base) ||
-         ((ULONG_PTR)Address >= Limit) )
-    {
-        /* WTF? */
-        return NULL;
-    }
-
-    /* Check if we got the right kind of memory */
-    if ( (MemoryInformation.State != MEM_COMMIT) ||
-         (MemoryInformation.Type != MEM_IMAGE) )
-    {
-        return NULL;
-    }
-
-    /* Check DOS magic */
-    DosHeader = MemoryInformation.AllocationBase;
-    if (DosHeader->e_magic != IMAGE_DOS_MAGIC)
-    {
-        return NULL;
-    }
-
-    /* Check NT header */
-    NtHeader = (PVOID)((ULONG_PTR)DosHeader + DosHeader->e_lfanew);
-    if (NtHeader->Signature != IMAGE_PE_MAGIC)
-    {
-        return NULL;
-    }
-
-    return MemoryInformation.AllocationBase;
-}
-

/*
  * Ldr Resource support code

Modified: branches/ros-amd64-bringup/reactos/lib/rtl/amd64/unwind.c
URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/lib/rt...
==============================================================================
--- branches/ros-amd64-bringup/reactos/lib/rtl/amd64/unwind.c [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/lib/rtl/amd64/unwind.c [iso-8859-1] Thu Nov  5 21:57:53 2009
@@ -58,11 +58,6 @@
 */
 } UNWIND_INFO, *PUNWIND_INFO;

-PVOID
-NTAPI
-RtlpLookupModuleBase(
-    PVOID Address);
-
 /* FUNCTIONS *****************************************************************/

PRUNTIME_FUNCTION
@@ -77,8 +72,7 @@
     PIMAGE_DATA_DIRECTORY Directory;

/* Find ModuleBase */
-    DosHeader = RtlpLookupModuleBase((PVOID)ControlPc);
-    if (!DosHeader)
+    if (!RtlPcToFileHeader((PVOID)ControlPc, (PVOID*)&DosHeader))
     {
         return NULL;
     }

Modified: branches/ros-amd64-bringup/reactos/ntoskrnl/rtl/libsupp.c
URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/ntoskr...
==============================================================================
--- branches/ros-amd64-bringup/reactos/ntoskrnl/rtl/libsupp.c [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/ntoskrnl/rtl/libsupp.c [iso-8859-1] Thu Nov  5 21:57:53 2009
@@ -30,26 +30,26 @@

PVOID
 NTAPI
-RtlpLookupModuleBase(
-    PVOID Address)
+RtlPcToFileHeader(
+    IN  PVOID PcValue,
+    OUT PVOID *BaseOfImage)
 {
     PLDR_DATA_TABLE_ENTRY LdrEntry;
     BOOLEAN InSystem;
-    PVOID p;

/* Get the base for this file */
-    if ((ULONG_PTR)Address > (ULONG_PTR)MmHighestUserAddress)
+    if ((ULONG_PTR)PcValue > (ULONG_PTR)MmHighestUserAddress)
     {
         /* We are in kernel */
-        p = KiPcToFileHeader(Address, &LdrEntry, FALSE, &InSystem);
+        *BaseOfImage = KiPcToFileHeader(PcValue, &LdrEntry, FALSE, &InSystem);
     }
     else
     {
         /* We are in user land */
-        p = KiRosPcToUserFileHeader(Address, &LdrEntry);
-    }
-
-    return p;
+        *BaseOfImage = KiRosPcToUserFileHeader(PcValue, &LdrEntry);
+    }
+
+    return *BaseOfImage;
 }

VOID