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[RSYM]

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- Include string table in checksum calculation
CORE-7547 #resolve

svn path=/trunk/; revision=60852
This commit is contained in:
Thomas Faber 2013-11-03 19:01:03 +00:00
parent d5e5e58ebf
commit 16c4fe33fb
1 changed files with 45 additions and 29 deletions
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62
reactos/tools/rsym/rsym.c
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@ -901,6 +901,7 @@ CreateOutputFile(FILE *OutFile, void *InData,
ULONG StartOfRawData; ULONG StartOfRawData;
unsigned Section; unsigned Section;
void *OutHeader, *ProcessedRelocs, *PaddedRosSym, *Data; void *OutHeader, *ProcessedRelocs, *PaddedRosSym, *Data;
unsigned char *PaddedStringTable;
PIMAGE_DOS_HEADER OutDosHeader; PIMAGE_DOS_HEADER OutDosHeader;
PIMAGE_FILE_HEADER OutFileHeader; PIMAGE_FILE_HEADER OutFileHeader;
PIMAGE_OPTIONAL_HEADER OutOptHeader; PIMAGE_OPTIONAL_HEADER OutOptHeader;
@ -909,6 +910,7 @@ CreateOutputFile(FILE *OutFile, void *InData,
ULONG Length, i; ULONG Length, i;
ULONG ProcessedRelocsLength; ULONG ProcessedRelocsLength;
ULONG RosSymOffset, RosSymFileLength; ULONG RosSymOffset, RosSymFileLength;
ULONG PaddedStringTableLength;
int InRelocSectionIndex; int InRelocSectionIndex;
PIMAGE_SECTION_HEADER OutRelocSection; PIMAGE_SECTION_HEADER OutRelocSection;
/* Each coff symbol is 18 bytes and the string table follows */ /* Each coff symbol is 18 bytes and the string table follows */
@ -1014,7 +1016,7 @@ CreateOutputFile(FILE *OutFile, void *InData,
OutRelocSection = CurrentSectionHeader; OutRelocSection = CurrentSectionHeader;
} }
StringTableLocation = CurrentSectionHeader->PointerToRawData + CurrentSectionHeader->SizeOfRawData; StringTableLocation = CurrentSectionHeader->PointerToRawData + CurrentSectionHeader->SizeOfRawData;
(OutFileHeader->NumberOfSections)++; OutFileHeader->NumberOfSections++;
CurrentSectionHeader++; CurrentSectionHeader++;
} }
} }
@ -1058,7 +1060,7 @@ CreateOutputFile(FILE *OutFile, void *InData,
| IMAGE_SCN_LNK_REMOVE | IMAGE_SCN_TYPE_NOLOAD; | IMAGE_SCN_LNK_REMOVE | IMAGE_SCN_TYPE_NOLOAD;
OutOptHeader->SizeOfImage = ROUND_UP(CurrentSectionHeader->VirtualAddress + CurrentSectionHeader->Misc.VirtualSize, OutOptHeader->SizeOfImage = ROUND_UP(CurrentSectionHeader->VirtualAddress + CurrentSectionHeader->Misc.VirtualSize,
OutOptHeader->SectionAlignment); OutOptHeader->SectionAlignment);
(OutFileHeader->NumberOfSections)++; OutFileHeader->NumberOfSections++;
PaddedRosSym = malloc(RosSymFileLength); PaddedRosSym = malloc(RosSymFileLength);
if (PaddedRosSym == NULL) if (PaddedRosSym == NULL)
@ -1120,6 +1122,37 @@ CreateOutputFile(FILE *OutFile, void *InData,
} }
Length += OutSectionHeaders[Section].SizeOfRawData; Length += OutSectionHeaders[Section].SizeOfRawData;
} }
if (OutFileHeader->PointerToSymbolTable)
{
int PaddingFrom = (OutFileHeader->PointerToSymbolTable + StringTableLength) %
OutOptHeader->FileAlignment;
int PaddingSize = PaddingFrom ? OutOptHeader->FileAlignment - PaddingFrom : 0;
PaddedStringTableLength = StringTableLength + PaddingSize;
PaddedStringTable = malloc(PaddedStringTableLength);
/* COFF string section is preceeded by a length */
assert(sizeof(StringTableLength) == 4);
memcpy(PaddedStringTable, &StringTableLength, sizeof(StringTableLength));
/* We just copy enough of the string table to contain the strings we want
The string table length technically counts as part of the string table
space itself. */
memcpy(PaddedStringTable + 4, StringTable + 4, StringTableLength - 4);
memset(PaddedStringTable + StringTableLength, 0, PaddingSize);
assert(OutFileHeader->PointerToSymbolTable % 2 == 0);
for (i = 0; i < PaddedStringTableLength / 2; i++)
{
CheckSum += ((unsigned short*)PaddedStringTable)[i];
CheckSum = 0xffff & (CheckSum + (CheckSum >> 16));
}
Length += PaddedStringTableLength;
}
else
{
PaddedStringTable = NULL;
}
CheckSum += Length; CheckSum += Length;
OutOptHeader->CheckSum = CheckSum; OutOptHeader->CheckSum = CheckSum;
@ -1161,28 +1194,11 @@ CreateOutputFile(FILE *OutFile, void *InData,
} }
} }
if (OutFileHeader->PointerToSymbolTable) if (PaddedStringTable)
{ {
int PaddingFrom = (OutFileHeader->PointerToSymbolTable + StringTableLength) % fseek(OutFile, OutFileHeader->PointerToSymbolTable, SEEK_SET);
OutOptHeader->FileAlignment; fwrite(PaddedStringTable, 1, PaddedStringTableLength, OutFile);
fseek(OutFile, OutFileHeader->PointerToSymbolTable, 0); free(PaddedStringTable);
/* COFF string section is preceeded by a length */
assert(sizeof(StringTableLength) == 4);
fwrite((char*)&StringTableLength, 1, sizeof(StringTableLength), OutFile);
/* We just copy enough of the string table to contain the strings we want
The string table length technically counts as part of the string table
space itself. */
fwrite(StringTable + 4, 1, StringTableLength - 4, OutFile);
if (PaddingFrom)
{
int PaddingSize = OutOptHeader->FileAlignment - PaddingFrom;
char *Padding = (char *)malloc(PaddingSize);
memset(Padding, 0, PaddingFrom);
fwrite(Padding, 1, PaddingSize, OutFile);
free(Padding);
}
} }
if (PaddedRosSym) if (PaddedRosSym)