uint64_t getPtr() const { return d_un.ptr; }
};
-template<class ELFT>
-class ELFObjectFile;
-
-// DynRefImpl: Reference to an entry in the dynamic table
-// This is an ELF-specific interface.
-template<class ELFT>
-class DynRefImpl {
- typedef Elf_Dyn_Impl<ELFT> Elf_Dyn;
- typedef ELFObjectFile<ELFT> OwningType;
-
- DataRefImpl DynPimpl;
- const OwningType *OwningObject;
-
-public:
- DynRefImpl() : OwningObject(NULL) { }
-
- DynRefImpl(DataRefImpl DynP, const OwningType *Owner);
-
- bool operator==(const DynRefImpl &Other) const;
- bool operator <(const DynRefImpl &Other) const;
-
- error_code getNext(DynRefImpl &Result) const;
- int64_t getTag() const;
- uint64_t getVal() const;
- uint64_t getPtr() const;
-
- DataRefImpl getRawDataRefImpl() const;
-};
-
// Elf_Rel: Elf Relocation
template<class ELFT, bool isRela>
struct Elf_Rel_Base;
class ELFObjectFile : public ObjectFile {
LLVM_ELF_IMPORT_TYPES(ELFT)
- typedef Elf_Ehdr_Impl<ELFT> Elf_Ehdr;
- typedef Elf_Shdr_Impl<ELFT> Elf_Shdr;
- typedef Elf_Sym_Impl<ELFT> Elf_Sym;
- typedef Elf_Dyn_Impl<ELFT> Elf_Dyn;
- typedef Elf_Phdr_Impl<ELFT> Elf_Phdr;
- typedef Elf_Rel_Impl<ELFT, false> Elf_Rel;
- typedef Elf_Rel_Impl<ELFT, true> Elf_Rela;
- typedef Elf_Verdef_Impl<ELFT> Elf_Verdef;
- typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
- typedef Elf_Verneed_Impl<ELFT> Elf_Verneed;
- typedef Elf_Vernaux_Impl<ELFT> Elf_Vernaux;
- typedef Elf_Versym_Impl<ELFT> Elf_Versym;
- typedef DynRefImpl<ELFT> DynRef;
- typedef content_iterator<DynRef> dyn_iterator;
-
-protected:
- // This flag is used for classof, to distinguish ELFObjectFile from
- // its subclass. If more subclasses will be created, this flag will
- // have to become an enum.
- bool isDyldELFObject;
-
-private:
- typedef SmallVector<const Elf_Shdr*, 1> Sections_t;
- typedef DenseMap<unsigned, unsigned> IndexMap_t;
- typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t;
-
- const Elf_Ehdr *Header;
- const Elf_Shdr *SectionHeaderTable;
- const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
- const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
- const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
-
- // SymbolTableSections[0] always points to the dynamic string table section
- // header, or NULL if there is no dynamic string table.
- Sections_t SymbolTableSections;
- IndexMap_t SymbolTableSectionsIndexMap;
- DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
-
- const Elf_Shdr *dot_dynamic_sec; // .dynamic
- const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
- const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
- const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
-
- // Pointer to SONAME entry in dynamic string table
- // This is set the first time getLoadName is called.
- mutable const char *dt_soname;
-
public:
/// \brief Iterate over constant sized entities.
template<class EntT>
const char *Current;
};
+private:
+ typedef Elf_Ehdr_Impl<ELFT> Elf_Ehdr;
+ typedef Elf_Shdr_Impl<ELFT> Elf_Shdr;
+ typedef Elf_Sym_Impl<ELFT> Elf_Sym;
+ typedef Elf_Dyn_Impl<ELFT> Elf_Dyn;
+ typedef Elf_Phdr_Impl<ELFT> Elf_Phdr;
+ typedef Elf_Rel_Impl<ELFT, false> Elf_Rel;
+ typedef Elf_Rel_Impl<ELFT, true> Elf_Rela;
+ typedef Elf_Verdef_Impl<ELFT> Elf_Verdef;
+ typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
+ typedef Elf_Verneed_Impl<ELFT> Elf_Verneed;
+ typedef Elf_Vernaux_Impl<ELFT> Elf_Vernaux;
+ typedef Elf_Versym_Impl<ELFT> Elf_Versym;
+ typedef ELFEntityIterator<const Elf_Dyn> dyn_iterator;
+
+protected:
+ // This flag is used for classof, to distinguish ELFObjectFile from
+ // its subclass. If more subclasses will be created, this flag will
+ // have to become an enum.
+ bool isDyldELFObject;
+
+private:
+ typedef SmallVector<const Elf_Shdr*, 1> Sections_t;
+ typedef DenseMap<unsigned, unsigned> IndexMap_t;
+ typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t;
+
+ const Elf_Ehdr *Header;
+ const Elf_Shdr *SectionHeaderTable;
+ const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
+ const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
+ const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
+
+ // SymbolTableSections[0] always points to the dynamic string table section
+ // header, or NULL if there is no dynamic string table.
+ Sections_t SymbolTableSections;
+ IndexMap_t SymbolTableSectionsIndexMap;
+ DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
+
+ const Elf_Shdr *dot_dynamic_sec; // .dynamic
+ const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
+ const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
+ const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
+
+ // Pointer to SONAME entry in dynamic string table
+ // This is set the first time getLoadName is called.
+ mutable const char *dt_soname;
+
private:
// Records for each version index the corresponding Verdef or Vernaux entry.
// This is filled the first time LoadVersionMap() is called.
section_iterator &Res) const;
virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
- friend class DynRefImpl<ELFT>;
- virtual error_code getDynNext(DataRefImpl DynData, DynRef &Result) const;
-
virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
template<class ELFT>
typename ELFObjectFile<ELFT>::dyn_iterator
ELFObjectFile<ELFT>::begin_dynamic_table() const {
- DataRefImpl DynData;
- if (dot_dynamic_sec == NULL || dot_dynamic_sec->sh_size == 0) {
- DynData.d.a = std::numeric_limits<uint32_t>::max();
- } else {
- DynData.d.a = 0;
- }
- return dyn_iterator(DynRef(DynData, this));
+ if (dot_dynamic_sec)
+ return dyn_iterator(dot_dynamic_sec->sh_entsize, (const char *)base() + dot_dynamic_sec->sh_offset);
+ return dyn_iterator(0, 0);
}
template<class ELFT>
typename ELFObjectFile<ELFT>::dyn_iterator
ELFObjectFile<ELFT>::end_dynamic_table() const {
- DataRefImpl DynData;
- DynData.d.a = std::numeric_limits<uint32_t>::max();
- return dyn_iterator(DynRef(DynData, this));
-}
-
-template<class ELFT>
-error_code ELFObjectFile<ELFT>::getDynNext(DataRefImpl DynData,
- DynRef &Result) const {
- ++DynData.d.a;
-
- // Check to see if we are at the end of .dynamic
- if (DynData.d.a >= dot_dynamic_sec->getEntityCount()) {
- // We are at the end. Return the terminator.
- DynData.d.a = std::numeric_limits<uint32_t>::max();
- }
-
- Result = DynRef(DynData, this);
- return object_error::success;
+ if (dot_dynamic_sec)
+ return dyn_iterator(dot_dynamic_sec->sh_entsize, (const char *)base() + dot_dynamic_sec->sh_offset + dot_dynamic_sec->sh_size);
+ return dyn_iterator(0, 0);
}
template<class ELFT>
-StringRef
-ELFObjectFile<ELFT>::getLoadName() const {
+StringRef ELFObjectFile<ELFT>::getLoadName() const {
if (!dt_soname) {
// Find the DT_SONAME entry
dyn_iterator it = begin_dynamic_table();
dyn_iterator ie = end_dynamic_table();
- error_code ec;
- while (it != ie) {
+ for (; it != ie; ++it) {
if (it->getTag() == ELF::DT_SONAME)
break;
- it.increment(ec);
- if (ec)
- report_fatal_error("dynamic table iteration failed");
}
if (it != ie) {
if (dot_dynstr_sec == NULL)
// Find the first DT_NEEDED entry
dyn_iterator i = begin_dynamic_table();
dyn_iterator e = end_dynamic_table();
- error_code ec;
while (i != e) {
if (i->getTag() == ELF::DT_NEEDED)
break;
- i.increment(ec);
- if (ec)
- report_fatal_error("dynamic table iteration failed");
}
- // Use the same DataRefImpl format as DynRef.
- return library_iterator(LibraryRef(i->getRawDataRefImpl(), this));
+
+ DataRefImpl DRI;
+ DRI.p = reinterpret_cast<uintptr_t>(&*i);
+ return library_iterator(LibraryRef(DRI, this));
}
template<class ELFT>
error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
LibraryRef &Result) const {
// Use the same DataRefImpl format as DynRef.
- dyn_iterator i = dyn_iterator(DynRef(Data, this));
+ dyn_iterator i = dyn_iterator(dot_dynamic_sec->sh_entsize, reinterpret_cast<const char *>(Data.p));
dyn_iterator e = end_dynamic_table();
// Skip the current dynamic table entry.
- error_code ec;
- if (i != e) {
- i.increment(ec);
- // TODO: proper error handling
- if (ec)
- report_fatal_error("dynamic table iteration failed");
- }
+ ++i;
// Find the next DT_NEEDED entry.
- while (i != e) {
- if (i->getTag() == ELF::DT_NEEDED)
- break;
- i.increment(ec);
- if (ec)
- report_fatal_error("dynamic table iteration failed");
- }
- Result = LibraryRef(i->getRawDataRefImpl(), this);
+ for (; i != e && i->getTag() != ELF::DT_NEEDED; ++i);
+
+ DataRefImpl DRI;
+ DRI.p = reinterpret_cast<uintptr_t>(&*i);
+ Result = LibraryRef(DRI, this);
return object_error::success;
}
template<class ELFT>
error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
StringRef &Res) const {
- dyn_iterator i = dyn_iterator(DynRef(Data, this));
+ dyn_iterator i = dyn_iterator(dot_dynamic_sec->sh_entsize, reinterpret_cast<const char *>(Data.p));
if (i == end_dynamic_table())
report_fatal_error("getLibraryPath() called on iterator end");
template<class ELFT>
library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const {
dyn_iterator e = end_dynamic_table();
- // Use the same DataRefImpl format as DynRef.
- return library_iterator(LibraryRef(e->getRawDataRefImpl(), this));
+ DataRefImpl DRI;
+ DRI.p = reinterpret_cast<uintptr_t>(&*e);
+ return library_iterator(LibraryRef(DRI, this));
}
template<class ELFT>
return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
}
-template<class ELFT>
-const typename ELFObjectFile<ELFT>::Elf_Dyn *
-ELFObjectFile<ELFT>::getDyn(DataRefImpl DynData) const {
- return getEntry<Elf_Dyn>(dot_dynamic_sec, DynData.d.a);
-}
-
template<class ELFT>
const typename ELFObjectFile<ELFT>::Elf_Rel *
ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
return object_error::success;
}
-template<class ELFT>
-inline DynRefImpl<ELFT>::DynRefImpl(DataRefImpl DynP, const OwningType *Owner)
- : DynPimpl(DynP)
- , OwningObject(Owner) {}
-
-template<class ELFT>
-inline bool DynRefImpl<ELFT>::operator==(const DynRefImpl &Other) const {
- return DynPimpl == Other.DynPimpl;
-}
-
-template<class ELFT>
-inline bool DynRefImpl<ELFT>::operator <(const DynRefImpl &Other) const {
- return DynPimpl < Other.DynPimpl;
-}
-
-template<class ELFT>
-inline error_code DynRefImpl<ELFT>::getNext(DynRefImpl &Result) const {
- return OwningObject->getDynNext(DynPimpl, Result);
-}
-
-template<class ELFT>
-inline int64_t DynRefImpl<ELFT>::getTag() const {
- return OwningObject->getDyn(DynPimpl)->d_tag;
-}
-
-template<class ELFT>
-inline uint64_t DynRefImpl<ELFT>::getVal() const {
- return OwningObject->getDyn(DynPimpl)->d_un.d_val;
-}
-
-template<class ELFT>
-inline uint64_t DynRefImpl<ELFT>::getPtr() const {
- return OwningObject->getDyn(DynPimpl)->d_un.d_ptr;
-}
-
-template<class ELFT>
-inline DataRefImpl DynRefImpl<ELFT>::getRawDataRefImpl() const {
- return DynPimpl;
-}
-
/// This is a generic interface for retrieving GNU symbol version
/// information from an ELFObjectFile.
static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
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