int getGlobalVariableOffset() {
int* symbolTableCursor;
symbolTableCursor = getSymbolTableEntry();
if (symbolTableCursor != 0) {
symbolTableCursor = symbolTableCursor + 2;
return *symbolTableCursor;
} else
// variable not found but who cares,
// just create entry in symbol table,
// allocate space for global variable,
// and return its offset
return createSymbolTableEntry(allocateGlobalVariable());
}
char MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
char Char;
switch (Entry->Type & macho::STF_TypeMask) {
case macho::STT_Undefined:
Char = 'u';
break;
case macho::STT_Absolute:
case macho::STT_Section:
Char = 's';
break;
default:
Char = '?';
break;
}
if (Entry->Flags & (macho::STF_External | macho::STF_PrivateExtern))
Char = toupper(Char);
return Char;
}
int setProcedureAddress() {
int* symbolTableCursor;
int savedAddress;
symbolTableCursor = getSymbolTableEntry();
if (symbolTableCursor != 0) {
symbolTableCursor = symbolTableCursor + 2;
savedAddress = *symbolTableCursor;
if (getOpcodeFromCode(savedAddress) == BSR)
// save address of next instruction which may point to
// the new head of an existing fixup chain
// or the beginning of a procedure body
*symbolTableCursor = codeLength;
return savedAddress;
} else
// procedure not found but who cares,
// just create entry in symbol table,
// and save address of next instruction
return createSymbolTableEntry(codeLength);
}
bool MachOObjectFile::isSymbolInternal(DataRefImpl DRI) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
return Entry->Flags & macho::STF_StabsEntryMask;
}
uint64_t MachOObjectFile::getSymbolAddress(DataRefImpl DRI) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
return Entry->Value;
}
StringRef MachOObjectFile::getSymbolName(DataRefImpl DRI) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
return MachOObj->getStringAtIndex(Entry->StringIndex);
}
