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Object: Add isSymbolWeak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142316 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -106,6 +106,7 @@ protected:
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolWeak(DataRefImpl Symb, bool &Res) const;
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virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
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virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
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virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
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virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
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@ -54,6 +54,7 @@ protected:
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolWeak(DataRefImpl Symb, bool &Res) const;
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virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
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virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
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virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
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virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
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@ -121,6 +121,9 @@ public:
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/// such as library functions
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/// such as library functions
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error_code isGlobal(bool &Result) const;
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error_code isGlobal(bool &Result) const;
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/// Returns true for weak symbols.
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error_code isWeak(bool &Result) const;
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DataRefImpl getRawDataRefImpl() const;
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DataRefImpl getRawDataRefImpl() const;
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};
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};
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typedef content_iterator<SymbolRef> symbol_iterator;
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typedef content_iterator<SymbolRef> symbol_iterator;
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@ -234,7 +237,7 @@ protected:
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const = 0;
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const = 0;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const = 0;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const = 0;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const = 0;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const = 0;
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virtual error_code isSymbolWeak(DataRefImpl Symb, bool &Res) const = 0;
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// Same as above for SectionRef.
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// Same as above for SectionRef.
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friend class SectionRef;
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friend class SectionRef;
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@ -345,6 +348,10 @@ inline error_code SymbolRef::isGlobal(bool &Result) const {
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return OwningObject->isSymbolGlobal(SymbolPimpl, Result);
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return OwningObject->isSymbolGlobal(SymbolPimpl, Result);
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}
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}
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inline error_code SymbolRef::isWeak(bool &Result) const {
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return OwningObject->isSymbolWeak(SymbolPimpl, Result);
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}
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inline error_code SymbolRef::getType(SymbolRef::Type &Result) const {
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inline error_code SymbolRef::getType(SymbolRef::Type &Result) const {
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return OwningObject->getSymbolType(SymbolPimpl, Result);
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return OwningObject->getSymbolType(SymbolPimpl, Result);
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}
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}
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@ -240,6 +240,9 @@ namespace llvm {
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NListSectionNoSection = 0u, // NO_SECT
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NListSectionNoSection = 0u, // NO_SECT
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NListSectionMaxSection = 0xffu, // MAX_SECT
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NListSectionMaxSection = 0xffu, // MAX_SECT
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NListDescWeakRef = 0x40u,
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NListDescWeakDef = 0x80u,
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// Constant values for the "n_type" field in llvm::MachO::nlist and
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// Constant values for the "n_type" field in llvm::MachO::nlist and
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// llvm::MachO::nlist_64 when "(n_type & NlistMaskStab) != 0"
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// llvm::MachO::nlist_64 when "(n_type & NlistMaskStab) != 0"
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StabGlobalSymbol = 0x20u, // N_GSYM
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StabGlobalSymbol = 0x20u, // N_GSYM
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@ -168,6 +168,13 @@ error_code COFFObjectFile::isSymbolGlobal(DataRefImpl Symb,
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return object_error::success;
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return object_error::success;
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}
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}
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error_code COFFObjectFile::isSymbolWeak(DataRefImpl Symb,
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bool &Result) const {
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const coff_symbol *symb = toSymb(Symb);
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Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL);
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return object_error::success;
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}
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error_code COFFObjectFile::getSymbolSize(DataRefImpl Symb,
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error_code COFFObjectFile::getSymbolSize(DataRefImpl Symb,
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uint64_t &Result) const {
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uint64_t &Result) const {
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// FIXME: Return the correct size. This requires looking at all the symbols
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// FIXME: Return the correct size. This requires looking at all the symbols
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@ -331,6 +331,7 @@ protected:
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
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virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
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virtual error_code isSymbolWeak(DataRefImpl Symb, bool &Res) const;
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virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
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virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
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virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
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virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
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@ -641,6 +642,17 @@ error_code ELFObjectFile<target_endianness, is64Bits>
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return object_error::success;
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return object_error::success;
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}
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}
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template<support::endianness target_endianness, bool is64Bits>
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error_code ELFObjectFile<target_endianness, is64Bits>
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::isSymbolWeak(DataRefImpl Symb,
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bool &Result) const {
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validateSymbol(Symb);
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const Elf_Sym *symb = getSymbol(Symb);
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Result = symb->getBinding() == ELF::STB_WEAK;
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return object_error::success;
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}
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template<support::endianness target_endianness, bool is64Bits>
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template<support::endianness target_endianness, bool is64Bits>
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error_code ELFObjectFile<target_endianness, is64Bits>
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error_code ELFObjectFile<target_endianness, is64Bits>
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::isSymbolInternal(DataRefImpl Symb,
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::isSymbolInternal(DataRefImpl Symb,
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@ -228,6 +228,20 @@ error_code MachOObjectFile::isSymbolGlobal(DataRefImpl Symb, bool &Res) const {
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return object_error::success;
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return object_error::success;
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}
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}
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error_code MachOObjectFile::isSymbolWeak(DataRefImpl Symb, bool &Res) const {
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if (MachOObj->is64Bit()) {
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InMemoryStruct<macho::Symbol64TableEntry> Entry;
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getSymbol64TableEntry(Symb, Entry);
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Res = Entry->Flags & (MachO::NListDescWeakRef | MachO::NListDescWeakDef);
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} else {
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InMemoryStruct<macho::SymbolTableEntry> Entry;
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getSymbolTableEntry(Symb, Entry);
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Res = Entry->Flags & (MachO::NListDescWeakRef | MachO::NListDescWeakDef);
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}
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return object_error::success;
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}
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error_code MachOObjectFile::getSymbolType(DataRefImpl Symb,
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error_code MachOObjectFile::getSymbolType(DataRefImpl Symb,
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SymbolRef::Type &Res) const {
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SymbolRef::Type &Res) const {
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uint8_t n_type;
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uint8_t n_type;
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