[hpoussin] 28806: Swap boot sector on big endian systems, even if DEBUG is not defined. Debug and release builds should behave the same
3 Sep
2007
3 Sep
'07
8:17 a.m.
Author: hpoussin
Date: Mon Sep 3 12:17:55 2007
New Revision: 28806
URL: http://svn.reactos.org/svn/reactos?rev=28806&view=rev
Log:
Swap boot sector on big endian systems, even if DEBUG is not defined. Debug and release
builds should behave the same
Modified:
trunk/reactos/boot/freeldr/freeldr/fs/fat.c
Modified: trunk/reactos/boot/freeldr/freeldr/fs/fat.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/fs/fa…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/fs/fat.c (original)
+++ trunk/reactos/boot/freeldr/freeldr/fs/fat.c Mon Sep 3 12:17:55 2007
@@ -39,80 +39,80 @@
VOID FatSwapFatBootSector(PFAT_BOOTSECTOR Obj)
{
- SW(Obj, BytesPerSector);
- SW(Obj, ReservedSectors);
- SW(Obj, RootDirEntries);
- SW(Obj, TotalSectors);
- SW(Obj, SectorsPerFat);
- SW(Obj, SectorsPerTrack);
- SW(Obj, NumberOfHeads);
- SD(Obj, HiddenSectors);
- SD(Obj, TotalSectorsBig);
- SD(Obj, VolumeSerialNumber);
- SW(Obj, BootSectorMagic);
+ SW(Obj, BytesPerSector);
+ SW(Obj, ReservedSectors);
+ SW(Obj, RootDirEntries);
+ SW(Obj, TotalSectors);
+ SW(Obj, SectorsPerFat);
+ SW(Obj, SectorsPerTrack);
+ SW(Obj, NumberOfHeads);
+ SD(Obj, HiddenSectors);
+ SD(Obj, TotalSectorsBig);
+ SD(Obj, VolumeSerialNumber);
+ SW(Obj, BootSectorMagic);
}
VOID FatSwapFat32BootSector(PFAT32_BOOTSECTOR Obj)
{
- SW(Obj, BytesPerSector);
- SW(Obj, ReservedSectors);
- SW(Obj, RootDirEntries);
- SW(Obj, TotalSectors);
- SW(Obj, SectorsPerFat);
- SW(Obj, NumberOfHeads);
- SD(Obj, HiddenSectors);
- SD(Obj, TotalSectorsBig);
- SD(Obj, SectorsPerFatBig);
- SW(Obj, ExtendedFlags);
- SW(Obj, FileSystemVersion);
- SD(Obj, RootDirStartCluster);
- SW(Obj, FsInfo);
- SW(Obj, BackupBootSector);
- SD(Obj, VolumeSerialNumber);
- SW(Obj, BootSectorMagic);
+ SW(Obj, BytesPerSector);
+ SW(Obj, ReservedSectors);
+ SW(Obj, RootDirEntries);
+ SW(Obj, TotalSectors);
+ SW(Obj, SectorsPerFat);
+ SW(Obj, NumberOfHeads);
+ SD(Obj, HiddenSectors);
+ SD(Obj, TotalSectorsBig);
+ SD(Obj, SectorsPerFatBig);
+ SW(Obj, ExtendedFlags);
+ SW(Obj, FileSystemVersion);
+ SD(Obj, RootDirStartCluster);
+ SW(Obj, FsInfo);
+ SW(Obj, BackupBootSector);
+ SD(Obj, VolumeSerialNumber);
+ SW(Obj, BootSectorMagic);
}
VOID FatSwapFatXBootSector(PFATX_BOOTSECTOR Obj)
{
- SD(Obj, VolumeSerialNumber);
- SD(Obj, SectorsPerCluster);
- SW(Obj, NumberOfFats);
+ SD(Obj, VolumeSerialNumber);
+ SD(Obj, SectorsPerCluster);
+ SW(Obj, NumberOfFats);
}
VOID FatSwapDirEntry(PDIRENTRY Obj)
{
- SW(Obj, CreateTime);
- SW(Obj, CreateDate);
- SW(Obj, LastAccessDate);
- SW(Obj, ClusterHigh);
- SW(Obj, Time);
- SW(Obj, Date);
- SW(Obj, ClusterLow);
- SD(Obj, Size);
+ SW(Obj, CreateTime);
+ SW(Obj, CreateDate);
+ SW(Obj, LastAccessDate);
+ SW(Obj, ClusterHigh);
+ SW(Obj, Time);
+ SW(Obj, Date);
+ SW(Obj, ClusterLow);
+ SD(Obj, Size);
}
VOID FatSwapLFNDirEntry(PLFN_DIRENTRY Obj)
{
- int i;
- SW(Obj, StartCluster);
- for(i = 0; i < 5; i++)
- Obj->Name0_4[i] = SWAPW(Obj->Name0_4[i]);
- for(i = 0; i < 6; i++)
- Obj->Name5_10[i] = SWAPW(Obj->Name5_10[i]);
- for(i = 0; i < 2; i++)
- Obj->Name11_12[i] = SWAPW(Obj->Name11_12[i]);
+ int i;
+ SW(Obj, StartCluster);
+ for(i = 0; i < 5; i++)
+ Obj->Name0_4[i] = SWAPW(Obj->Name0_4[i]);
+ for(i = 0; i < 6; i++)
+ Obj->Name5_10[i] = SWAPW(Obj->Name5_10[i]);
+ for(i = 0; i < 2; i++)
+ Obj->Name11_12[i] = SWAPW(Obj->Name11_12[i]);
}
VOID FatSwapFatXDirEntry(PFATX_DIRENTRY Obj)
{
- SD(Obj, StartCluster);
- SD(Obj, Size);
- SW(Obj, Time);
- SW(Obj, Date);
- SW(Obj, CreateTime);
- SW(Obj, CreateDate);
- SW(Obj, LastAccessTime);
- SW(Obj, LastAccessDate);
+ SD(Obj, StartCluster);
+ SD(Obj, Size);
+ SW(Obj, Time);
+ SW(Obj, Date);
+ SW(Obj, CreateTime);
+ SW(Obj, CreateDate);
+ SW(Obj, LastAccessTime);
+ SW(Obj, LastAccessDate);
}
BOOLEAN FatOpenVolume(ULONG DriveNumber, ULONG VolumeStartSector, ULONG
PartitionSectorCount)
@@ -153,17 +153,14 @@
}
RtlCopyMemory(FatVolumeBootSector, (PVOID)DISKREADBUFFER, 512);
-
// Get the FAT type
FatType = FatDetermineFatType(FatVolumeBootSector, PartitionSectorCount);
-#ifdef DEBUG
-
+ // Dump boot sector (and swap it for big endian systems)
DbgPrint((DPRINT_FILESYSTEM, "Dumping boot sector:\n"));
-
if (ISFATX(FatType))
{
- FatSwapFatXBootSector(FatXVolumeBootSector);
+ FatSwapFatXBootSector(FatXVolumeBootSector);
DbgPrint((DPRINT_FILESYSTEM, "sizeof(FATX_BOOTSECTOR) =
0x%x.\n", sizeof(FATX_BOOTSECTOR)));
DbgPrint((DPRINT_FILESYSTEM, "FileSystemType: %c%c%c%c.\n",
FatXVolumeBootSector->FileSystemType[0], FatXVolumeBootSector->FileSystemType[1],
FatXVolumeBootSector->FileSystemType[2], FatXVolumeBootSector->FileSystemType[3]));
@@ -177,7 +174,7 @@
}
else if (FatType == FAT32)
{
- FatSwapFat32BootSector(Fat32VolumeBootSector);
+ FatSwapFat32BootSector(Fat32VolumeBootSector);
DbgPrint((DPRINT_FILESYSTEM, "sizeof(FAT32_BOOTSECTOR) =
0x%x.\n", sizeof(FAT32_BOOTSECTOR)));
DbgPrint((DPRINT_FILESYSTEM, "JumpBoot: 0x%x 0x%x 0x%x\n",
Fat32VolumeBootSector->JumpBoot[0], Fat32VolumeBootSector->JumpBoot[1],
Fat32VolumeBootSector->JumpBoot[2]));
@@ -211,7 +208,7 @@
}
else
{
- FatSwapFatBootSector(FatVolumeBootSector);
+ FatSwapFatBootSector(FatVolumeBootSector);
DbgPrint((DPRINT_FILESYSTEM, "sizeof(FAT_BOOTSECTOR) = 0x%x.\n",
sizeof(FAT_BOOTSECTOR)));
DbgPrint((DPRINT_FILESYSTEM, "JumpBoot: 0x%x 0x%x 0x%x\n",
FatVolumeBootSector->JumpBoot[0], FatVolumeBootSector->JumpBoot[1],
FatVolumeBootSector->JumpBoot[2]));
@@ -237,9 +234,9 @@
DbgPrint((DPRINT_FILESYSTEM, "BootSectorMagic: 0x%x\n",
FatVolumeBootSector->BootSectorMagic));
}
-#endif // defined DEBUG
-
- //
+#endif // !defined NDEBUG
+
+ //
// Set the correct partition offset
//
FatVolumeStartSector = VolumeStartSector;
@@ -250,7 +247,7 @@
if (! ISFATX(FatType) && SWAPW(FatVolumeBootSector->BootSectorMagic) !=
0xaa55)
{
sprintf(ErrMsg, "Invalid boot sector magic on drive 0x%x (expected
0xaa55 found 0x%x)",
- DriveNumber, FatVolumeBootSector->BootSectorMagic);
+ DriveNumber, FatVolumeBootSector->BootSectorMagic);
FileSystemError(ErrMsg);
MmFreeMemory(FatVolumeBootSector);
return FALSE;
@@ -261,7 +258,7 @@
// We do not support clusters bigger than 64k
//
if ((ISFATX(FatType) && 64 * 1024 <
FatXVolumeBootSector->SectorsPerCluster * 512) ||
- (! ISFATX(FatType) && 64 * 1024 <
FatVolumeBootSector->SectorsPerCluster * FatVolumeBootSector->BytesPerSector))
+ (! ISFATX(FatType) && 64 * 1024 <
FatVolumeBootSector->SectorsPerCluster * FatVolumeBootSector->BytesPerSector))
{
FileSystemError("This file system has cluster sizes bigger than
64k.\nFreeLoader does not support this.");
MmFreeMemory(FatVolumeBootSector);
@@ -342,7 +339,6 @@
//
// Initialize the disk cache for this drive
//
- printf("About to do cache init\n");
if (!CacheInitializeDrive(DriveNumber))
{
return FALSE;
@@ -502,7 +498,7 @@
for (CurrentEntry=0; CurrentEntry<EntryCount; CurrentEntry++, DirectoryBuffer =
((PDIRENTRY)DirectoryBuffer)+1)
{
- OurLfnDirEntry = *((PLFN_DIRENTRY) DirectoryBuffer);
+ OurLfnDirEntry = *((PLFN_DIRENTRY) DirectoryBuffer);
FatSwapLFNDirEntry(LfnDirEntry);
OurDirEntry = *((PDIRENTRY) DirectoryBuffer);
FatSwapDirEntry(DirEntry);
@@ -518,7 +514,7 @@
//
if (DirEntry->FileName[0] == '\0')
{
- return FALSE;
+ return FALSE;
}
//
@@ -701,7 +697,7 @@
ULONG EntryCount;
ULONG CurrentEntry;
ULONG FileNameLen;
- FATX_DIRENTRY OurDirEntry;
+ FATX_DIRENTRY OurDirEntry;
PFATX_DIRENTRY DirEntry = &OurDirEntry;
EntryCount = DirectorySize / sizeof(FATX_DIRENTRY);
@@ -712,8 +708,8 @@
for (CurrentEntry = 0; CurrentEntry < EntryCount; CurrentEntry++,
DirectoryBuffer = ((PFATX_DIRENTRY)DirectoryBuffer)+1)
{
- OurDirEntry = *(PFATX_DIRENTRY) DirectoryBuffer;
- FatSwapFatXDirEntry(&OurDirEntry);
+ OurDirEntry = *(PFATX_DIRENTRY) DirectoryBuffer;
+ FatSwapFatXDirEntry(&OurDirEntry);
if (0xff == DirEntry->FileNameSize)
{
break;
@@ -811,7 +807,6 @@
// Buffer the directory contents
//
DirectoryBuffer = FatBufferDirectory(DirectoryStartCluster,
&DirectorySize, (i == 0) );
-
if (DirectoryBuffer == NULL)
{
return FALSE;
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