unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; }
};
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Phdr;
+
+template<support::endianness target_endianness>
+struct Elf_Phdr<target_endianness, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, false)
+ Elf_Word p_type; // Type of segment
+ Elf_Off p_offset; // FileOffset where segment is located, in bytes
+ Elf_Addr p_vaddr; // Virtual Address of beginning of segment
+ Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
+ Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
+ Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
+ Elf_Word p_flags; // Segment flags
+ Elf_Word p_align; // Segment alignment constraint
+};
+
+template<support::endianness target_endianness>
+struct Elf_Phdr<target_endianness, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, true)
+ Elf_Word p_type; // Type of segment
+ Elf_Word p_flags; // Segment flags
+ Elf_Off p_offset; // FileOffset where segment is located, in bytes
+ Elf_Addr p_vaddr; // Virtual Address of beginning of segment
+ Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
+ Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
+ Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
+ Elf_Word p_align; // Segment alignment constraint
+};
+
template<support::endianness target_endianness, bool is64Bits>
class ELFObjectFile : public ObjectFile {
LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
// This is set the first time getLoadName is called.
mutable const char *dt_soname;
+public:
+ /// \brief Iterate over relocations in a .rel or .rela section.
+ template<class RelocT>
+ class ELFRelocationIterator {
+ public:
+ typedef void difference_type;
+ typedef const RelocT value_type;
+ typedef std::forward_iterator_tag iterator_category;
+ typedef value_type &reference;
+ typedef value_type *pointer;
+
+ /// \brief Default construct iterator.
+ ELFRelocationIterator() : Section(0), Current(0) {}
+ ELFRelocationIterator(const Elf_Shdr *Sec, const char *Start)
+ : Section(Sec)
+ , Current(Start) {}
+
+ reference operator *() {
+ assert(Current && "Attempted to dereference an invalid iterator!");
+ return *reinterpret_cast<const RelocT*>(Current);
+ }
+
+ pointer operator ->() {
+ assert(Current && "Attempted to dereference an invalid iterator!");
+ return reinterpret_cast<const RelocT*>(Current);
+ }
+
+ bool operator ==(const ELFRelocationIterator &Other) {
+ return Section == Other.Section && Current == Other.Current;
+ }
+
+ bool operator !=(const ELFRelocationIterator &Other) {
+ return !(*this == Other);
+ }
+
+ ELFRelocationIterator &operator ++(int) {
+ assert(Current && "Attempted to increment an invalid iterator!");
+ Current += Section->sh_entsize;
+ return *this;
+ }
+
+ ELFRelocationIterator operator ++() {
+ ELFRelocationIterator Tmp = *this;
+ ++*this;
+ return Tmp;
+ }
+
+ private:
+ const Elf_Shdr *Section;
+ const char *Current;
+ };
+
+private:
// Records for each version index the corresponding Verdef or Vernaux entry.
// This is filled the first time LoadVersionMap() is called.
class VersionMapEntry : public PointerIntPair<const void*, 1> {
virtual dyn_iterator begin_dynamic_table() const;
virtual dyn_iterator end_dynamic_table() const;
+ typedef ELFRelocationIterator<Elf_Rela> Elf_Rela_Iter;
+ typedef ELFRelocationIterator<Elf_Rel> Elf_Rel_Iter;
+
+ virtual Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
+ return Elf_Rela_Iter(sec, (const char *)(base() + sec->sh_offset));
+ }
+
+ virtual Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
+ return Elf_Rela_Iter(sec, (const char *)
+ (base() + sec->sh_offset + sec->sh_size));
+ }
+
+ virtual Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
+ return Elf_Rel_Iter(sec, (const char *)(base() + sec->sh_offset));
+ }
+
+ virtual Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
+ return Elf_Rel_Iter(sec, (const char *)
+ (base() + sec->sh_offset + sec->sh_size));
+ }
+
virtual uint8_t getBytesInAddress() const;
virtual StringRef getFileFormatName() const;
virtual StringRef getObjectType() const { return "ELF"; }
const Elf_Shdr *getSection(const Elf_Sym *symb) const;
const Elf_Shdr *getElfSection(section_iterator &It) const;
const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
+ const Elf_Sym *getElfSymbol(uint32_t index) const;
// Methods for type inquiry through isa, cast, and dyn_cast
bool isDyldType() const { return isDyldELFObject; }
return getSymbol(It->getRawDataRefImpl());
}
+template<support::endianness target_endianness, bool is64Bits>
+const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
+ELFObjectFile<target_endianness, is64Bits>
+ ::getElfSymbol(uint32_t index) const {
+ DataRefImpl SymbolData;
+ SymbolData.d.a = index;
+ SymbolData.d.b = 1;
+ return getSymbol(SymbolData);
+}
+
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::getSymbolFileOffset(DataRefImpl Symb,
case ELF::STT_FUNC:
case ELF::STT_OBJECT:
case ELF::STT_NOTYPE:
- Result = symb->st_value + (Section ? Section->sh_addr : 0);
+ bool IsRelocatable;
+ switch(Header->e_type) {
+ case ELF::ET_EXEC:
+ case ELF::ET_DYN:
+ IsRelocatable = false;
+ break;
+ default:
+ IsRelocatable = true;
+ }
+ Result = symb->st_value;
+ if (IsRelocatable && Section != 0)
+ Result += Section->sh_addr;
return object_error::success;
default:
Result = UnknownAddressOrSize;
return "ELF64-i386";
case ELF::EM_X86_64:
return "ELF64-x86-64";
+ case ELF::EM_PPC64:
+ return "ELF64-ppc64";
default:
return "ELF64-unknown";
}
case ELF::EM_MIPS:
return (target_endianness == support::little) ?
Triple::mipsel : Triple::mips;
+ case ELF::EM_PPC64:
+ return Triple::ppc64;
default:
return Triple::UnknownArch;
}
projects / oota-llvm.git / blobdiff