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Object: Add proper error handling.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133872 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer
2011-06-25 17:55:23 +00:00
parent 76fb9b0e5f
commit 25b15777df
10 changed files with 563 additions and 271 deletions
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104
lib/Object/MachOObjectFile.cpp
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@ -47,19 +47,19 @@ public:
virtual unsigned getArch() const;
protected:
virtual SymbolRef getSymbolNext(DataRefImpl Symb) const;
virtual StringRef getSymbolName(DataRefImpl Symb) const;
virtual uint64_t getSymbolAddress(DataRefImpl Symb) const;
virtual uint64_t getSymbolSize(DataRefImpl Symb) const;
virtual char getSymbolNMTypeChar(DataRefImpl Symb) const;
virtual bool isSymbolInternal(DataRefImpl Symb) const;
virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
virtual SectionRef getSectionNext(DataRefImpl Sec) const;
virtual StringRef getSectionName(DataRefImpl Sec) const;
virtual uint64_t getSectionAddress(DataRefImpl Sec) const;
virtual uint64_t getSectionSize(DataRefImpl Sec) const;
virtual StringRef getSectionContents(DataRefImpl Sec) const;
virtual bool isSectionText(DataRefImpl Sec) const;
virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
private:
MachOObject *MachOObj;
@ -115,29 +115,38 @@ void MachOObjectFile::getSymbolTableEntry(DataRefImpl DRI,
}
SymbolRef MachOObjectFile::getSymbolNext(DataRefImpl DRI) const {
error_code MachOObjectFile::getSymbolNext(DataRefImpl DRI,
SymbolRef &Result) const {
DRI.d.b++;
moveToNextSymbol(DRI);
return SymbolRef(DRI, this);
Result = SymbolRef(DRI, this);
return object_error::success;
}
StringRef MachOObjectFile::getSymbolName(DataRefImpl DRI) const {
error_code MachOObjectFile::getSymbolName(DataRefImpl DRI,
StringRef &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
return MachOObj->getStringAtIndex(Entry->StringIndex);
Result = MachOObj->getStringAtIndex(Entry->StringIndex);
return object_error::success;
}
uint64_t MachOObjectFile::getSymbolAddress(DataRefImpl DRI) const {
error_code MachOObjectFile::getSymbolAddress(DataRefImpl DRI,
uint64_t &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
return Entry->Value;
Result = Entry->Value;
return object_error::success;
}
uint64_t MachOObjectFile::getSymbolSize(DataRefImpl DRI) const {
return UnknownAddressOrSize;
error_code MachOObjectFile::getSymbolSize(DataRefImpl DRI,
uint64_t &Result) const {
Result = UnknownAddressOrSize;
return object_error::success;
}
char MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI) const {
error_code MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI,
char &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
@ -157,13 +166,16 @@ char MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI) const {
if (Entry->Flags & (macho::STF_External | macho::STF_PrivateExtern))
Char = toupper(Char);
return Char;
Result = Char;
return object_error::success;
}
bool MachOObjectFile::isSymbolInternal(DataRefImpl DRI) const {
error_code MachOObjectFile::isSymbolInternal(DataRefImpl DRI,
bool &Result) const {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
return Entry->Flags & macho::STF_StabsEntryMask;
Result = Entry->Flags & macho::STF_StabsEntryMask;
return object_error::success;
}
ObjectFile::symbol_iterator MachOObjectFile::begin_symbols() const {
@ -205,10 +217,12 @@ void MachOObjectFile::moveToNextSection(DataRefImpl &DRI) const {
}
}
SectionRef MachOObjectFile::getSectionNext(DataRefImpl DRI) const {
error_code MachOObjectFile::getSectionNext(DataRefImpl DRI,
SectionRef &Result) const {
DRI.d.b++;
moveToNextSection(DRI);
return SectionRef(DRI, this);
Result = SectionRef(DRI, this);
return object_error::success;
}
void
@ -220,43 +234,53 @@ MachOObjectFile::getSection(DataRefImpl DRI,
MachOObj->ReadSection(LCI, DRI.d.b, Res);
}
StringRef MachOObjectFile::getSectionName(DataRefImpl DRI) const {
error_code MachOObjectFile::getSectionName(DataRefImpl DRI,
StringRef &Result) const {
InMemoryStruct<macho::SegmentLoadCommand> SLC;
LoadCommandInfo LCI = MachOObj->getLoadCommandInfo(DRI.d.a);
MachOObj->ReadSegmentLoadCommand(LCI, SLC);
InMemoryStruct<macho::Section> Sect;
MachOObj->ReadSection(LCI, DRI.d.b, Sect);
static char Result[34];
strcpy(Result, SLC->Name);
strcat(Result, ",");
strcat(Result, Sect->Name);
return StringRef(Result);
static char result[34];
strcpy(result, SLC->Name);
strcat(result, ",");
strcat(result, Sect->Name);
Result = StringRef(result);
return object_error::success;
}
uint64_t MachOObjectFile::getSectionAddress(DataRefImpl DRI) const {
error_code MachOObjectFile::getSectionAddress(DataRefImpl DRI,
uint64_t &Result) const {
InMemoryStruct<macho::Section> Sect;
getSection(DRI, Sect);
return Sect->Address;
Result = Sect->Address;
return object_error::success;
}
uint64_t MachOObjectFile::getSectionSize(DataRefImpl DRI) const {
error_code MachOObjectFile::getSectionSize(DataRefImpl DRI,
uint64_t &Result) const {
InMemoryStruct<macho::Section> Sect;
getSection(DRI, Sect);
return Sect->Size;
Result = Sect->Size;
return object_error::success;
}
StringRef MachOObjectFile::getSectionContents(DataRefImpl DRI) const {
error_code MachOObjectFile::getSectionContents(DataRefImpl DRI,
StringRef &Result) const {
InMemoryStruct<macho::Section> Sect;
getSection(DRI, Sect);
return MachOObj->getData(Sect->Offset, Sect->Size);
Result = MachOObj->getData(Sect->Offset, Sect->Size);
return object_error::success;
}
bool MachOObjectFile::isSectionText(DataRefImpl DRI) const {
error_code MachOObjectFile::isSectionText(DataRefImpl DRI,
bool &Result) const {
InMemoryStruct<macho::SegmentLoadCommand> SLC;
LoadCommandInfo LCI = MachOObj->getLoadCommandInfo(DRI.d.a);
MachOObj->ReadSegmentLoadCommand(LCI, SLC);
return !strcmp(SLC->Name, "__TEXT");
Result = !strcmp(SLC->Name, "__TEXT");
return object_error::success;
}
ObjectFile::section_iterator MachOObjectFile::begin_sections() const {