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MachOObjectFile: Get symbol functions ready for 64 bit.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135282 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2011-07-15 17:32:45 +00:00
parent 037a60f909
commit 32fb2af679
1 changed files with 58 additions and 13 deletions
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71
lib/Object/MachOObjectFile.cpp
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@ -68,6 +68,8 @@ private:
void moveToNextSection(DataRefImpl &DRI) const;
void getSymbolTableEntry(DataRefImpl DRI,
InMemoryStruct<macho::SymbolTableEntry> &Res) const;
void getSymbol64TableEntry(DataRefImpl DRI,
InMemoryStruct<macho::Symbol64TableEntry> &Res) const;
void moveToNextSymbol(DataRefImpl &DRI) const;
void getSection(DataRefImpl DRI, InMemoryStruct<macho::Section> &Res) const;
void getSection64(DataRefImpl DRI,
@ -116,6 +118,21 @@ void MachOObjectFile::getSymbolTableEntry(DataRefImpl DRI,
Res);
}
void MachOObjectFile::getSymbol64TableEntry(DataRefImpl DRI,
InMemoryStruct<macho::Symbol64TableEntry> &Res) const {
InMemoryStruct<macho::SymtabLoadCommand> SymtabLoadCmd;
LoadCommandInfo LCI = MachOObj->getLoadCommandInfo(DRI.d.a);
MachOObj->ReadSymtabLoadCommand(LCI, SymtabLoadCmd);
if (RegisteredStringTable != DRI.d.a) {
MachOObj->RegisterStringTable(*SymtabLoadCmd);
RegisteredStringTable = DRI.d.a;
}
MachOObj->ReadSymbol64TableEntry(SymtabLoadCmd->SymbolTableOffset, DRI.d.b,
Res);
}
error_code MachOObjectFile::getSymbolNext(DataRefImpl DRI,
SymbolRef &Result) const {
@ -127,17 +144,29 @@ error_code MachOObjectFile::getSymbolNext(DataRefImpl DRI,
error_code MachOObjectFile::getSymbolName(DataRefImpl DRI,
StringRef &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
Result = MachOObj->getStringAtIndex(Entry->StringIndex);
if (MachOObj->is64Bit()) {
InMemoryStruct<macho::Symbol64TableEntry> Entry;
getSymbol64TableEntry(DRI, Entry);
Result = MachOObj->getStringAtIndex(Entry->StringIndex);
} else {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
Result = MachOObj->getStringAtIndex(Entry->StringIndex);
}
return object_error::success;
}
error_code MachOObjectFile::getSymbolAddress(DataRefImpl DRI,
uint64_t &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
Result = Entry->Value;
if (MachOObj->is64Bit()) {
InMemoryStruct<macho::Symbol64TableEntry> Entry;
getSymbol64TableEntry(DRI, Entry);
Result = Entry->Value;
} else {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
Result = Entry->Value;
}
return object_error::success;
}
@ -149,11 +178,21 @@ error_code MachOObjectFile::getSymbolSize(DataRefImpl DRI,
error_code MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI,
char &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
uint8_t Type, Flags;
if (MachOObj->is64Bit()) {
InMemoryStruct<macho::Symbol64TableEntry> Entry;
getSymbol64TableEntry(DRI, Entry);
Type = Entry->Type;
Flags = Entry->Flags;
} else {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
Type = Entry->Type;
Flags = Entry->Flags;
}
char Char;
switch (Entry->Type & macho::STF_TypeMask) {
switch (Type & macho::STF_TypeMask) {
case macho::STT_Undefined:
Char = 'u';
break;
@ -166,7 +205,7 @@ error_code MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI,
break;
}
if (Entry->Flags & (macho::STF_External | macho::STF_PrivateExtern))
if (Flags & (macho::STF_External | macho::STF_PrivateExtern))
Char = toupper(Char);
Result = Char;
return object_error::success;
@ -174,9 +213,15 @@ error_code MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI,
error_code MachOObjectFile::isSymbolInternal(DataRefImpl DRI,
bool &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
Result = Entry->Flags & macho::STF_StabsEntryMask;
if (MachOObj->is64Bit()) {
InMemoryStruct<macho::Symbol64TableEntry> Entry;
getSymbol64TableEntry(DRI, Entry);
Result = Entry->Flags & macho::STF_StabsEntryMask;
} else {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
Result = Entry->Flags & macho::STF_StabsEntryMask;
}
return object_error::success;
}