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- Fixed the calculation of some offset values.

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- Used the correct flag for testing of a bss section.

svn path=/trunk/; revision=15870
This commit is contained in:
Hartmut Birr 2005-06-12 10:25:49 +00:00
parent b2f1b36fd9
commit 95aa074b1e
1 changed files with 17 additions and 12 deletions
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29
reactos/ntoskrnl/mm/section.c
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@ -657,7 +657,8 @@ MmNotPresentFaultSectionView(PMADDRESS_SPACE AddressSpace,
}
PAddress = MM_ROUND_DOWN(Address, PAGE_SIZE);
Offset = (ULONG_PTR)PAddress - (ULONG_PTR)MemoryArea->StartingAddress;
Offset = (ULONG_PTR)PAddress - (ULONG_PTR)MemoryArea->StartingAddress
+ MemoryArea->Data.SectionData.ViewOffset;
Segment = MemoryArea->Data.SectionData.Segment;
Section = MemoryArea->Data.SectionData.Section;
@ -864,7 +865,7 @@ MmNotPresentFaultSectionView(PMADDRESS_SPACE AddressSpace,
/*
* Just map the desired physical page
*/
Page = (Offset + MemoryArea->Data.SectionData.ViewOffset) >> PAGE_SHIFT;
Page = Offset >> PAGE_SHIFT;
Status = MmCreateVirtualMappingUnsafe(AddressSpace->Process,
Address,
Region->Protect,
@ -940,7 +941,6 @@ MmNotPresentFaultSectionView(PMADDRESS_SPACE AddressSpace,
/*
* Get the entry corresponding to the offset within the section
*/
Offset += MemoryArea->Data.SectionData.ViewOffset;
Entry = MmGetPageEntrySectionSegment(Segment, Offset);
if (Entry == 0)
@ -1172,7 +1172,8 @@ MmAccessFaultSectionView(PMADDRESS_SPACE AddressSpace,
* Find the offset of the page
*/
PAddress = MM_ROUND_DOWN(Address, PAGE_SIZE);
Offset = (ULONG_PTR)PAddress - (ULONG_PTR)MemoryArea->StartingAddress;
Offset = (ULONG_PTR)PAddress - (ULONG_PTR)MemoryArea->StartingAddress
+ MemoryArea->Data.SectionData.ViewOffset;
Segment = MemoryArea->Data.SectionData.Segment;
Section = MemoryArea->Data.SectionData.Section;
@ -1371,7 +1372,8 @@ MmPageOutSectionView(PMADDRESS_SPACE AddressSpace,
Context.Segment = MemoryArea->Data.SectionData.Segment;
Context.Section = MemoryArea->Data.SectionData.Section;
Context.Offset = (ULONG_PTR)Address - (ULONG_PTR)MemoryArea->StartingAddress;
Context.Offset = (ULONG_PTR)Address - (ULONG_PTR)MemoryArea->StartingAddress
+ MemoryArea->Data.SectionData.ViewOffset;
FileOffset = Context.Offset + Context.Segment->FileOffset;
IsImageSection = Context.Section->AllocationAttributes & SEC_IMAGE ? TRUE : FALSE;
@ -1425,7 +1427,7 @@ MmPageOutSectionView(PMADDRESS_SPACE AddressSpace,
* Prepare the context structure for the rmap delete call.
*/
Context.WasDirty = FALSE;
if (Context.Segment->Characteristics & IMAGE_SCN_LNK_OTHER ||
if (Context.Segment->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA ||
IS_SWAP_FROM_SSE(Entry) ||
PFN_FROM_SSE(Entry) != Page)
{
@ -1711,7 +1713,8 @@ MmWritePageSectionView(PMADDRESS_SPACE AddressSpace,
Address = (PVOID)PAGE_ROUND_DOWN(Address);
Offset = (ULONG_PTR)Address - (ULONG_PTR)MemoryArea->StartingAddress;
Offset = (ULONG_PTR)Address - (ULONG_PTR)MemoryArea->StartingAddress
+ MemoryArea->Data.SectionData.ViewOffset;
/*
* Get the segment and section.
@ -1767,7 +1770,7 @@ MmWritePageSectionView(PMADDRESS_SPACE AddressSpace,
/*
* Check for a private (COWed) page.
*/
if (Segment->Characteristics & IMAGE_SCN_LNK_OTHER ||
if (Segment->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA ||
IS_SWAP_FROM_SSE(Entry) ||
PFN_FROM_SSE(Entry) != Page)
{
@ -1790,7 +1793,7 @@ MmWritePageSectionView(PMADDRESS_SPACE AddressSpace,
if (DirectMapped && !Private)
{
ASSERT(SwapEntry == 0);
CcRosMarkDirtyCacheSegment(Bcb, Offset + MemoryArea->Data.SectionData.ViewOffset);
CcRosMarkDirtyCacheSegment(Bcb, Offset + Segment->FileOffset);
PageOp->Status = STATUS_SUCCESS;
MmspCompleteAndReleasePageOp(PageOp);
return(STATUS_SUCCESS);
@ -1875,12 +1878,13 @@ MmAlterViewAttributes(PMADDRESS_SPACE AddressSpace,
ULONG Entry;
PFN_TYPE Page;
Offset = (ULONG_PTR)Address - (ULONG_PTR)MemoryArea->StartingAddress;
Offset = (ULONG_PTR)Address - (ULONG_PTR)MemoryArea->StartingAddress
+ MemoryArea->Data.SectionData.ViewOffset;
Entry = MmGetPageEntrySectionSegment(Segment, Offset);
Page = MmGetPfnForProcess(AddressSpace->Process, Address);
Protect = PAGE_READONLY;
if (Segment->Characteristics & IMAGE_SCN_LNK_OTHER ||
if (Segment->Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA ||
IS_SWAP_FROM_SSE(Entry) ||
PFN_FROM_SSE(Entry) != Page)
{
@ -2125,6 +2129,7 @@ MmCreatePhysicalMemorySection(VOID)
ObDereferenceObject(PhysSection);
}
PhysSection->AllocationAttributes |= SEC_PHYSICALMEMORY;
PhysSection->Segment->Flags &= ~MM_PAGEFILE_SEGMENT;
return(STATUS_SUCCESS);
}
@ -3730,7 +3735,7 @@ MmFreeSectionPage(PVOID Context, MEMORY_AREA* MemoryArea, PVOID Address,
{
FileObject = MemoryArea->Data.SectionData.Section->FileObject;
Bcb = FileObject->SectionObjectPointer->SharedCacheMap;
CcRosMarkDirtyCacheSegment(Bcb, Offset);
CcRosMarkDirtyCacheSegment(Bcb, Offset + Segment->FileOffset);
ASSERT(SwapEntry == 0);
}
}