#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/PointerIntPair.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ELF.h"
namespace llvm {
namespace object {
+// Subclasses of ELFObjectFile may need this for template instantiation
+inline std::pair<unsigned char, unsigned char>
+getElfArchType(MemoryBuffer *Object) {
+ if (Object->getBufferSize() < ELF::EI_NIDENT)
+ return std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE);
+ return std::make_pair( (uint8_t)Object->getBufferStart()[ELF::EI_CLASS]
+ , (uint8_t)Object->getBufferStart()[ELF::EI_DATA]);
+}
+
// Templates to choose Elf_Addr and Elf_Off depending on is64Bits.
template<support::endianness target_endianness>
struct ELFDataTypeTypedefHelperCommon {
}
};
+/// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section
+/// (.gnu.version). This structure is identical for ELF32 and ELF64.
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Versym_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
+ Elf_Half vs_index; // Version index with flags (e.g. VERSYM_HIDDEN)
+};
+
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Verdaux_Impl;
+
+/// Elf_Verdef: This is the structure of entries in the SHT_GNU_verdef section
+/// (.gnu.version_d). This structure is identical for ELF32 and ELF64.
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Verdef_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
+ typedef Elf_Verdaux_Impl<target_endianness, is64Bits> Elf_Verdaux;
+ Elf_Half vd_version; // Version of this structure (e.g. VER_DEF_CURRENT)
+ Elf_Half vd_flags; // Bitwise flags (VER_DEF_*)
+ Elf_Half vd_ndx; // Version index, used in .gnu.version entries
+ Elf_Half vd_cnt; // Number of Verdaux entries
+ Elf_Word vd_hash; // Hash of name
+ Elf_Word vd_aux; // Offset to the first Verdaux entry (in bytes)
+ Elf_Word vd_next; // Offset to the next Verdef entry (in bytes)
+
+ /// Get the first Verdaux entry for this Verdef.
+ const Elf_Verdaux *getAux() const {
+ return reinterpret_cast<const Elf_Verdaux*>((const char*)this + vd_aux);
+ }
+};
+
+/// Elf_Verdaux: This is the structure of auxiliary data in the SHT_GNU_verdef
+/// section (.gnu.version_d). This structure is identical for ELF32 and ELF64.
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Verdaux_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
+ Elf_Word vda_name; // Version name (offset in string table)
+ Elf_Word vda_next; // Offset to next Verdaux entry (in bytes)
+};
+
+/// Elf_Verneed: This is the structure of entries in the SHT_GNU_verneed
+/// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Verneed_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
+ Elf_Half vn_version; // Version of this structure (e.g. VER_NEED_CURRENT)
+ Elf_Half vn_cnt; // Number of associated Vernaux entries
+ Elf_Word vn_file; // Library name (string table offset)
+ Elf_Word vn_aux; // Offset to first Vernaux entry (in bytes)
+ Elf_Word vn_next; // Offset to next Verneed entry (in bytes)
+};
+
+/// Elf_Vernaux: This is the structure of auxiliary data in SHT_GNU_verneed
+/// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Vernaux_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
+ Elf_Word vna_hash; // Hash of dependency name
+ Elf_Half vna_flags; // Bitwise Flags (VER_FLAG_*)
+ Elf_Half vna_other; // Version index, used in .gnu.version entries
+ Elf_Word vna_name; // Dependency name
+ Elf_Word vna_next; // Offset to next Vernaux entry (in bytes)
+};
+
+/// Elf_Dyn_Base: This structure matches the form of entries in the dynamic
+/// table section (.dynamic) look like.
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Dyn_Base;
+
+template<support::endianness target_endianness>
+struct Elf_Dyn_Base<target_endianness, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, false)
+ Elf_Sword d_tag;
+ union {
+ Elf_Word d_val;
+ Elf_Addr d_ptr;
+ } d_un;
+};
+
+template<support::endianness target_endianness>
+struct Elf_Dyn_Base<target_endianness, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, true)
+ Elf_Sxword d_tag;
+ union {
+ Elf_Xword d_val;
+ Elf_Addr d_ptr;
+ } d_un;
+};
+
+/// Elf_Dyn_Impl: This inherits from Elf_Dyn_Base, adding getters and setters.
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Dyn_Impl : Elf_Dyn_Base<target_endianness, is64Bits> {
+ using Elf_Dyn_Base<target_endianness, is64Bits>::d_tag;
+ using Elf_Dyn_Base<target_endianness, is64Bits>::d_un;
+ int64_t getTag() const { return d_tag; }
+ uint64_t getVal() const { return d_un.d_val; }
+ uint64_t getPtr() const { return d_un.ptr; }
+};
+
+template<support::endianness target_endianness, bool is64Bits>
+class ELFObjectFile;
+
+// DynRefImpl: Reference to an entry in the dynamic table
+// This is an ELF-specific interface.
+template<support::endianness target_endianness, bool is64Bits>
+class DynRefImpl {
+ typedef Elf_Dyn_Impl<target_endianness, is64Bits> Elf_Dyn;
+ typedef ELFObjectFile<target_endianness, is64Bits> 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<support::endianness target_endianness, bool is64Bits, bool isRela>
struct Elf_Rel_Base;
}
};
+template<support::endianness target_endianness, bool is64Bits>
+struct Elf_Ehdr_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
+ unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes
+ Elf_Half e_type; // Type of file (see ET_*)
+ Elf_Half e_machine; // Required architecture for this file (see EM_*)
+ Elf_Word e_version; // Must be equal to 1
+ Elf_Addr e_entry; // Address to jump to in order to start program
+ Elf_Off e_phoff; // Program header table's file offset, in bytes
+ Elf_Off e_shoff; // Section header table's file offset, in bytes
+ Elf_Word e_flags; // Processor-specific flags
+ Elf_Half e_ehsize; // Size of ELF header, in bytes
+ Elf_Half e_phentsize;// Size of an entry in the program header table
+ Elf_Half e_phnum; // Number of entries in the program header table
+ Elf_Half e_shentsize;// Size of an entry in the section header table
+ Elf_Half e_shnum; // Number of entries in the section header table
+ Elf_Half e_shstrndx; // Section header table index of section name
+ // string table
+ bool checkMagic() const {
+ return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0;
+ }
+ unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; }
+ 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)
+ typedef Elf_Ehdr_Impl<target_endianness, is64Bits> Elf_Ehdr;
typedef Elf_Shdr_Impl<target_endianness, is64Bits> Elf_Shdr;
typedef Elf_Sym_Impl<target_endianness, is64Bits> Elf_Sym;
+ typedef Elf_Dyn_Impl<target_endianness, is64Bits> Elf_Dyn;
typedef Elf_Rel_Impl<target_endianness, is64Bits, false> Elf_Rel;
typedef Elf_Rel_Impl<target_endianness, is64Bits, true> Elf_Rela;
+ typedef Elf_Verdef_Impl<target_endianness, is64Bits> Elf_Verdef;
+ typedef Elf_Verdaux_Impl<target_endianness, is64Bits> Elf_Verdaux;
+ typedef Elf_Verneed_Impl<target_endianness, is64Bits> Elf_Verneed;
+ typedef Elf_Vernaux_Impl<target_endianness, is64Bits> Elf_Vernaux;
+ typedef Elf_Versym_Impl<target_endianness, is64Bits> Elf_Versym;
+ typedef DynRefImpl<target_endianness, is64Bits> DynRef;
+ typedef content_iterator<DynRef> dyn_iterator;
protected:
- struct Elf_Ehdr {
- unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes
- Elf_Half e_type; // Type of file (see ET_*)
- Elf_Half e_machine; // Required architecture for this file (see EM_*)
- Elf_Word e_version; // Must be equal to 1
- Elf_Addr e_entry; // Address to jump to in order to start program
- Elf_Off e_phoff; // Program header table's file offset, in bytes
- Elf_Off e_shoff; // Section header table's file offset, in bytes
- Elf_Word e_flags; // Processor-specific flags
- Elf_Half e_ehsize; // Size of ELF header, in bytes
- Elf_Half e_phentsize;// Size of an entry in the program header table
- Elf_Half e_phnum; // Number of entries in the program header table
- Elf_Half e_shentsize;// Size of an entry in the section header table
- Elf_Half e_shnum; // Number of entries in the section header table
- Elf_Half e_shstrndx; // Section header table index of section name
- // string table
- bool checkMagic() const {
- return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0;
- }
- unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; }
- unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; }
- };
// 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.
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 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> {
+ public:
+ // If the integer is 0, this is an Elf_Verdef*.
+ // If the integer is 1, this is an Elf_Vernaux*.
+ VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { }
+ VersionMapEntry(const Elf_Verdef *verdef)
+ : PointerIntPair<const void*, 1>(verdef, 0) { }
+ VersionMapEntry(const Elf_Vernaux *vernaux)
+ : PointerIntPair<const void*, 1>(vernaux, 1) { }
+ bool isNull() const { return getPointer() == NULL; }
+ bool isVerdef() const { return !isNull() && getInt() == 0; }
+ bool isVernaux() const { return !isNull() && getInt() == 1; }
+ const Elf_Verdef *getVerdef() const {
+ return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL;
+ }
+ const Elf_Vernaux *getVernaux() const {
+ return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL;
+ }
+ };
+ mutable SmallVector<VersionMapEntry, 16> VersionMap;
+ void LoadVersionDefs(const Elf_Shdr *sec) const;
+ void LoadVersionNeeds(const Elf_Shdr *ec) const;
+ void LoadVersionMap() const;
+
/// @brief Map sections to an array of relocation sections that reference
/// them sorted by section index.
RelocMap_t SectionRelocMap;
const Elf_Rela *getRela(DataRefImpl Rela) const;
const char *getString(uint32_t section, uint32_t offset) const;
const char *getString(const Elf_Shdr *section, uint32_t offset) const;
- error_code getSymbolName(const Elf_Shdr *section,
- const Elf_Sym *Symb,
- StringRef &Res) const;
+ error_code getSymbolVersion(const Elf_Shdr *section,
+ const Elf_Sym *Symb,
+ StringRef &Version,
+ bool &IsDefault) const;
void VerifyStrTab(const Elf_Shdr *sh) const;
protected:
const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private?
void validateSymbol(DataRefImpl Symb) const;
+public:
+ error_code getSymbolName(const Elf_Shdr *section,
+ const Elf_Sym *Symb,
+ StringRef &Res) const;
+ error_code getSectionName(const Elf_Shdr *section,
+ StringRef &Res) const;
+ const Elf_Dyn *getDyn(DataRefImpl DynData) const;
+ error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
+ bool &IsDefault) const;
protected:
virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
virtual error_code getSymbolSection(DataRefImpl Symb,
section_iterator &Res) const;
+ friend class DynRefImpl<target_endianness, is64Bits>;
+ 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;
+
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 isSectionText(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
+ virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
+ bool &Res) const;
+ virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
+ virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
bool &Result) const;
virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
ELFObjectFile(MemoryBuffer *Object, error_code &ec);
virtual symbol_iterator begin_symbols() const;
virtual symbol_iterator end_symbols() const;
+
virtual symbol_iterator begin_dynamic_symbols() const;
virtual symbol_iterator end_dynamic_symbols() const;
+
virtual section_iterator begin_sections() const;
virtual section_iterator end_sections() const;
+ virtual library_iterator begin_libraries_needed() const;
+ virtual library_iterator end_libraries_needed() const;
+
+ 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"; }
virtual unsigned getArch() const;
+ virtual StringRef getLoadName() const;
+ virtual error_code getSectionContents(const Elf_Shdr *sec,
+ StringRef &Res) const;
uint64_t getNumSections() const;
uint64_t getStringTableIndex() const;
ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
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; }
static inline bool classof(const Binary *v) {
- return v->getType() == Binary::isELF;
+ return v->getType() == getELFType(target_endianness == support::little,
+ is64Bits);
}
static inline bool classof(const ELFObjectFile *v) { return true; }
};
+// Iterate through the version definitions, and place each Elf_Verdef
+// in the VersionMap according to its index.
+template<support::endianness target_endianness, bool is64Bits>
+void ELFObjectFile<target_endianness, is64Bits>::
+ LoadVersionDefs(const Elf_Shdr *sec) const {
+ unsigned vd_size = sec->sh_size; // Size of section in bytes
+ unsigned vd_count = sec->sh_info; // Number of Verdef entries
+ const char *sec_start = (const char*)base() + sec->sh_offset;
+ const char *sec_end = sec_start + vd_size;
+ // The first Verdef entry is at the start of the section.
+ const char *p = sec_start;
+ for (unsigned i = 0; i < vd_count; i++) {
+ if (p + sizeof(Elf_Verdef) > sec_end)
+ report_fatal_error("Section ended unexpectedly while scanning "
+ "version definitions.");
+ const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
+ if (vd->vd_version != ELF::VER_DEF_CURRENT)
+ report_fatal_error("Unexpected verdef version");
+ size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
+ if (index >= VersionMap.size())
+ VersionMap.resize(index+1);
+ VersionMap[index] = VersionMapEntry(vd);
+ p += vd->vd_next;
+ }
+}
+
+// Iterate through the versions needed section, and place each Elf_Vernaux
+// in the VersionMap according to its index.
+template<support::endianness target_endianness, bool is64Bits>
+void ELFObjectFile<target_endianness, is64Bits>::
+ LoadVersionNeeds(const Elf_Shdr *sec) const {
+ unsigned vn_size = sec->sh_size; // Size of section in bytes
+ unsigned vn_count = sec->sh_info; // Number of Verneed entries
+ const char *sec_start = (const char*)base() + sec->sh_offset;
+ const char *sec_end = sec_start + vn_size;
+ // The first Verneed entry is at the start of the section.
+ const char *p = sec_start;
+ for (unsigned i = 0; i < vn_count; i++) {
+ if (p + sizeof(Elf_Verneed) > sec_end)
+ report_fatal_error("Section ended unexpectedly while scanning "
+ "version needed records.");
+ const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
+ if (vn->vn_version != ELF::VER_NEED_CURRENT)
+ report_fatal_error("Unexpected verneed version");
+ // Iterate through the Vernaux entries
+ const char *paux = p + vn->vn_aux;
+ for (unsigned j = 0; j < vn->vn_cnt; j++) {
+ if (paux + sizeof(Elf_Vernaux) > sec_end)
+ report_fatal_error("Section ended unexpected while scanning auxiliary "
+ "version needed records.");
+ const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
+ size_t index = vna->vna_other & ELF::VERSYM_VERSION;
+ if (index >= VersionMap.size())
+ VersionMap.resize(index+1);
+ VersionMap[index] = VersionMapEntry(vna);
+ paux += vna->vna_next;
+ }
+ p += vn->vn_next;
+ }
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+void ELFObjectFile<target_endianness, is64Bits>::LoadVersionMap() const {
+ // If there is no dynamic symtab or version table, there is nothing to do.
+ if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
+ return;
+
+ // Has the VersionMap already been loaded?
+ if (VersionMap.size() > 0)
+ return;
+
+ // The first two version indexes are reserved.
+ // Index 0 is LOCAL, index 1 is GLOBAL.
+ VersionMap.push_back(VersionMapEntry());
+ VersionMap.push_back(VersionMapEntry());
+
+ if (dot_gnu_version_d_sec)
+ LoadVersionDefs(dot_gnu_version_d_sec);
+
+ if (dot_gnu_version_r_sec)
+ LoadVersionNeeds(dot_gnu_version_r_sec);
+}
+
template<support::endianness target_endianness, bool is64Bits>
void ELFObjectFile<target_endianness, is64Bits>
::validateSymbol(DataRefImpl Symb) const {
return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
}
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getSymbolVersion(SymbolRef SymRef,
+ StringRef &Version,
+ bool &IsDefault) const {
+ DataRefImpl Symb = SymRef.getRawDataRefImpl();
+ validateSymbol(Symb);
+ const Elf_Sym *symb = getSymbol(Symb);
+ return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
+ Version, IsDefault);
+}
+
template<support::endianness target_endianness, bool is64Bits>
ELF::Elf64_Word ELFObjectFile<target_endianness, is64Bits>
::getSymbolTableIndex(const Elf_Sym *symb) const {
return getSection(symb->st_shndx);
}
+template<support::endianness target_endianness, bool is64Bits>
+const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
+ELFObjectFile<target_endianness, is64Bits>
+ ::getElfSection(section_iterator &It) const {
+ llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
+ return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
+ELFObjectFile<target_endianness, is64Bits>
+ ::getElfSymbol(symbol_iterator &It) const {
+ 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 object_error::success;
}
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getSectionContents(const Elf_Shdr *Sec,
+ StringRef &Result) const {
+ const char *start = (const char*)base() + Sec->sh_offset;
+ Result = StringRef(start, Sec->sh_size);
+ return object_error::success;
+}
+
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::getSectionAlignment(DataRefImpl Sec,
return object_error::success;
}
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::isSectionRequiredForExecution(DataRefImpl Sec,
+ bool &Result) const {
+ const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
+ if (sec->sh_flags & ELF::SHF_ALLOC)
+ Result = true;
+ else
+ Result = false;
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::isSectionVirtual(DataRefImpl Sec,
+ bool &Result) const {
+ const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
+ if (sec->sh_type == ELF::SHT_NOBITS)
+ Result = true;
+ else
+ Result = false;
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>::isSectionZeroInit(DataRefImpl Sec,
+ bool &Result) const {
+ const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
+ // For ELF, all zero-init sections are virtual (that is, they occupy no space
+ // in the object image) and vice versa.
+ if (sec->sh_flags & ELF::SHT_NOBITS)
+ Result = true;
+ else
+ Result = false;
+ return object_error::success;
+}
+
template<support::endianness target_endianness, bool is64Bits>
error_code ELFObjectFile<target_endianness, is64Bits>
::sectionContainsSymbol(DataRefImpl Sec,
relocation_iterator ELFObjectFile<target_endianness, is64Bits>
::getSectionRelBegin(DataRefImpl Sec) const {
DataRefImpl RelData;
- memset(&RelData, 0, sizeof(RelData));
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
if (sec != 0 && ittr != SectionRelocMap.end()) {
relocation_iterator ELFObjectFile<target_endianness, is64Bits>
::getSectionRelEnd(DataRefImpl Sec) const {
DataRefImpl RelData;
- memset(&RelData, 0, sizeof(RelData));
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
if (sec != 0 && ittr != SectionRelocMap.end()) {
res = "Unknown";
}
break;
+ case ELF::EM_ARM:
+ switch (type) {
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
+ default:
+ res = "Unknown";
+ }
+ break;
+ case ELF::EM_HEXAGON:
+ switch (type) {
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
+ LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
+ default:
+ res = "Unknown";
+ }
+ break;
default:
res = "Unknown";
}
int64_t addend = 0;
uint16_t symbol_index = 0;
switch (sec->sh_type) {
- default :
+ default:
return object_error::parse_failed;
- case ELF::SHT_REL : {
+ case ELF::SHT_REL: {
type = getRel(Rel)->getType();
symbol_index = getRel(Rel)->getSymbol();
// TODO: Read implicit addend from section data.
break;
}
- case ELF::SHT_RELA : {
+ case ELF::SHT_RELA: {
type = getRela(Rel)->getType();
symbol_index = getRela(Rel)->getSymbol();
addend = getRela(Rel)->r_addend;
switch (Header->e_machine) {
case ELF::EM_X86_64:
switch (type) {
- case ELF::R_X86_64_32S:
- res = symname;
- break;
+ case ELF::R_X86_64_PC8:
+ case ELF::R_X86_64_PC16:
case ELF::R_X86_64_PC32: {
std::string fmtbuf;
raw_string_ostream fmt(fmtbuf);
Result.append(fmtbuf.begin(), fmtbuf.end());
}
break;
+ case ELF::R_X86_64_8:
+ case ELF::R_X86_64_16:
+ case ELF::R_X86_64_32:
+ case ELF::R_X86_64_32S:
+ case ELF::R_X86_64_64: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << symname << (addend < 0 ? "" : "+") << addend;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ }
+ break;
default:
res = "Unknown";
}
break;
+ case ELF::EM_ARM:
+ case ELF::EM_HEXAGON:
+ res = symname;
+ break;
default:
res = "Unknown";
}
template<support::endianness target_endianness, bool is64Bits>
ELFObjectFile<target_endianness, is64Bits>::ELFObjectFile(MemoryBuffer *Object
, error_code &ec)
- : ObjectFile(Binary::isELF, Object, ec)
+ : ObjectFile(getELFType(target_endianness == support::little, is64Bits),
+ Object, ec)
, isDyldELFObject(false)
, SectionHeaderTable(0)
, dot_shstrtab_sec(0)
, dot_strtab_sec(0)
- , dot_dynstr_sec(0) {
+ , dot_dynstr_sec(0)
+ , dot_dynamic_sec(0)
+ , dot_gnu_version_sec(0)
+ , dot_gnu_version_r_sec(0)
+ , dot_gnu_version_d_sec(0)
+ , dt_soname(0)
+ {
const uint64_t FileSize = Data->getBufferSize();
SymbolTableSections.push_back(NULL);
for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
- if (sh->sh_type == ELF::SHT_SYMTAB_SHNDX) {
+ switch (sh->sh_type) {
+ case ELF::SHT_SYMTAB_SHNDX: {
if (SymbolTableSectionHeaderIndex)
// FIXME: Proper error handling.
report_fatal_error("More than one .symtab_shndx!");
SymbolTableSectionHeaderIndex = sh;
+ break;
}
- if (sh->sh_type == ELF::SHT_SYMTAB) {
+ case ELF::SHT_SYMTAB: {
SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
SymbolTableSections.push_back(sh);
+ break;
}
- if (sh->sh_type == ELF::SHT_DYNSYM) {
+ case ELF::SHT_DYNSYM: {
if (SymbolTableSections[0] != NULL)
// FIXME: Proper error handling.
report_fatal_error("More than one .dynsym!");
SymbolTableSectionsIndexMap[i] = 0;
SymbolTableSections[0] = sh;
+ break;
}
- if (sh->sh_type == ELF::SHT_REL || sh->sh_type == ELF::SHT_RELA) {
+ case ELF::SHT_REL:
+ case ELF::SHT_RELA: {
SectionRelocMap[getSection(sh->sh_info)].push_back(i);
+ break;
+ }
+ case ELF::SHT_DYNAMIC: {
+ if (dot_dynamic_sec != NULL)
+ // FIXME: Proper error handling.
+ report_fatal_error("More than one .dynamic!");
+ dot_dynamic_sec = sh;
+ break;
+ }
+ case ELF::SHT_GNU_versym: {
+ if (dot_gnu_version_sec != NULL)
+ // FIXME: Proper error handling.
+ report_fatal_error("More than one .gnu.version section!");
+ dot_gnu_version_sec = sh;
+ break;
+ }
+ case ELF::SHT_GNU_verdef: {
+ if (dot_gnu_version_d_sec != NULL)
+ // FIXME: Proper error handling.
+ report_fatal_error("More than one .gnu.version_d section!");
+ dot_gnu_version_d_sec = sh;
+ break;
+ }
+ case ELF::SHT_GNU_verneed: {
+ if (dot_gnu_version_r_sec != NULL)
+ // FIXME: Proper error handling.
+ report_fatal_error("More than one .gnu.version_r section!");
+ dot_gnu_version_r_sec = sh;
+ break;
+ }
}
++sh;
}
symbol_iterator ELFObjectFile<target_endianness, is64Bits>
::begin_symbols() const {
DataRefImpl SymbolData;
- memset(&SymbolData, 0, sizeof(SymbolData));
if (SymbolTableSections.size() <= 1) {
SymbolData.d.a = std::numeric_limits<uint32_t>::max();
SymbolData.d.b = std::numeric_limits<uint32_t>::max();
symbol_iterator ELFObjectFile<target_endianness, is64Bits>
::end_symbols() const {
DataRefImpl SymbolData;
- memset(&SymbolData, 0, sizeof(SymbolData));
SymbolData.d.a = std::numeric_limits<uint32_t>::max();
SymbolData.d.b = std::numeric_limits<uint32_t>::max();
return symbol_iterator(SymbolRef(SymbolData, this));
symbol_iterator ELFObjectFile<target_endianness, is64Bits>
::begin_dynamic_symbols() const {
DataRefImpl SymbolData;
- memset(&SymbolData, 0, sizeof(SymbolData));
if (SymbolTableSections[0] == NULL) {
SymbolData.d.a = std::numeric_limits<uint32_t>::max();
SymbolData.d.b = std::numeric_limits<uint32_t>::max();
symbol_iterator ELFObjectFile<target_endianness, is64Bits>
::end_dynamic_symbols() const {
DataRefImpl SymbolData;
- memset(&SymbolData, 0, sizeof(SymbolData));
SymbolData.d.a = std::numeric_limits<uint32_t>::max();
SymbolData.d.b = std::numeric_limits<uint32_t>::max();
return symbol_iterator(SymbolRef(SymbolData, this));
section_iterator ELFObjectFile<target_endianness, is64Bits>
::begin_sections() const {
DataRefImpl ret;
- memset(&ret, 0, sizeof(DataRefImpl));
ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
return section_iterator(SectionRef(ret, this));
}
section_iterator ELFObjectFile<target_endianness, is64Bits>
::end_sections() const {
DataRefImpl ret;
- memset(&ret, 0, sizeof(DataRefImpl));
ret.p = reinterpret_cast<intptr_t>(base()
+ Header->e_shoff
+ (Header->e_shentsize*getNumSections()));
return section_iterator(SectionRef(ret, this));
}
+template<support::endianness target_endianness, bool is64Bits>
+typename ELFObjectFile<target_endianness, is64Bits>::dyn_iterator
+ELFObjectFile<target_endianness, is64Bits>::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));
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+typename ELFObjectFile<target_endianness, is64Bits>::dyn_iterator
+ELFObjectFile<target_endianness, is64Bits>
+ ::end_dynamic_table() const {
+ DataRefImpl DynData;
+ DynData.d.a = std::numeric_limits<uint32_t>::max();
+ return dyn_iterator(DynRef(DynData, this));
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::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;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+StringRef
+ELFObjectFile<target_endianness, is64Bits>::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) {
+ 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)
+ report_fatal_error("Dynamic string table is missing");
+ dt_soname = getString(dot_dynstr_sec, it->getVal());
+ } else {
+ dt_soname = "";
+ }
+ }
+ return dt_soname;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+library_iterator ELFObjectFile<target_endianness, is64Bits>
+ ::begin_libraries_needed() const {
+ // 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));
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getLibraryNext(DataRefImpl Data,
+ LibraryRef &Result) const {
+ // Use the same DataRefImpl format as DynRef.
+ dyn_iterator i = dyn_iterator(DynRef(Data, this));
+ 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");
+ }
+
+ // 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);
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getLibraryPath(DataRefImpl Data, StringRef &Res) const {
+ dyn_iterator i = dyn_iterator(DynRef(Data, this));
+ if (i == end_dynamic_table())
+ report_fatal_error("getLibraryPath() called on iterator end");
+
+ if (i->getTag() != ELF::DT_NEEDED)
+ report_fatal_error("Invalid library_iterator");
+
+ // This uses .dynstr to lookup the name of the DT_NEEDED entry.
+ // THis works as long as DT_STRTAB == .dynstr. This is true most of
+ // the time, but the specification allows exceptions.
+ // TODO: This should really use DT_STRTAB instead. Doing this requires
+ // reading the program headers.
+ if (dot_dynstr_sec == NULL)
+ report_fatal_error("Dynamic string table is missing");
+ Res = getString(dot_dynstr_sec, i->getVal());
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+library_iterator ELFObjectFile<target_endianness, is64Bits>
+ ::end_libraries_needed() const {
+ dyn_iterator e = end_dynamic_table();
+ // Use the same DataRefImpl format as DynRef.
+ return library_iterator(LibraryRef(e->getRawDataRefImpl(), this));
+}
+
template<support::endianness target_endianness, bool is64Bits>
uint8_t ELFObjectFile<target_endianness, is64Bits>::getBytesInAddress() const {
return is64Bits ? 8 : 4;
return "ELF32-x86-64";
case ELF::EM_ARM:
return "ELF32-arm";
+ case ELF::EM_HEXAGON:
+ return "ELF32-hexagon";
default:
return "ELF32-unknown";
}
return "ELF64-i386";
case ELF::EM_X86_64:
return "ELF64-x86-64";
+ case ELF::EM_PPC64:
+ return "ELF64-ppc64";
default:
return "ELF64-unknown";
}
return Triple::x86_64;
case ELF::EM_ARM:
return Triple::arm;
+ case ELF::EM_HEXAGON:
+ return Triple::hexagon;
+ case ELF::EM_MIPS:
+ return (target_endianness == support::little) ?
+ Triple::mipsel : Triple::mips;
+ case ELF::EM_PPC64:
+ return Triple::ppc64;
default:
return Triple::UnknownArch;
}
return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
}
+template<support::endianness target_endianness, bool is64Bits>
+const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Dyn *
+ELFObjectFile<target_endianness, is64Bits>::getDyn(DataRefImpl DynData) const {
+ return getEntry<Elf_Dyn>(dot_dynamic_sec, DynData.d.a);
+}
+
template<support::endianness target_endianness, bool is64Bits>
const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rel *
ELFObjectFile<target_endianness, is64Bits>::getRel(DataRefImpl Rel) const {
return object_error::success;
}
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getSectionName(const Elf_Shdr *section,
+ StringRef &Result) const {
+ Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+error_code ELFObjectFile<target_endianness, is64Bits>
+ ::getSymbolVersion(const Elf_Shdr *section,
+ const Elf_Sym *symb,
+ StringRef &Version,
+ bool &IsDefault) const {
+ // Handle non-dynamic symbols.
+ if (section != SymbolTableSections[0]) {
+ // Non-dynamic symbols can have versions in their names
+ // A name of the form 'foo@V1' indicates version 'V1', non-default.
+ // A name of the form 'foo@@V2' indicates version 'V2', default version.
+ StringRef Name;
+ error_code ec = getSymbolName(section, symb, Name);
+ if (ec != object_error::success)
+ return ec;
+ size_t atpos = Name.find('@');
+ if (atpos == StringRef::npos) {
+ Version = "";
+ IsDefault = false;
+ return object_error::success;
+ }
+ ++atpos;
+ if (atpos < Name.size() && Name[atpos] == '@') {
+ IsDefault = true;
+ ++atpos;
+ } else {
+ IsDefault = false;
+ }
+ Version = Name.substr(atpos);
+ return object_error::success;
+ }
+
+ // This is a dynamic symbol. Look in the GNU symbol version table.
+ if (dot_gnu_version_sec == NULL) {
+ // No version table.
+ Version = "";
+ IsDefault = false;
+ return object_error::success;
+ }
+
+ // Determine the position in the symbol table of this entry.
+ const char *sec_start = (const char*)base() + section->sh_offset;
+ size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
+
+ // Get the corresponding version index entry
+ const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
+ size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
+
+ // Special markers for unversioned symbols.
+ if (version_index == ELF::VER_NDX_LOCAL ||
+ version_index == ELF::VER_NDX_GLOBAL) {
+ Version = "";
+ IsDefault = false;
+ return object_error::success;
+ }
+
+ // Lookup this symbol in the version table
+ LoadVersionMap();
+ if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
+ report_fatal_error("Symbol has version index without corresponding "
+ "define or reference entry");
+ const VersionMapEntry &entry = VersionMap[version_index];
+
+ // Get the version name string
+ size_t name_offset;
+ if (entry.isVerdef()) {
+ // The first Verdaux entry holds the name.
+ name_offset = entry.getVerdef()->getAux()->vda_name;
+ } else {
+ name_offset = entry.getVernaux()->vna_name;
+ }
+ Version = getString(dot_dynstr_sec, name_offset);
+
+ // Set IsDefault
+ if (entry.isVerdef()) {
+ IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
+ } else {
+ IsDefault = false;
+ }
+
+ return object_error::success;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline DynRefImpl<target_endianness, is64Bits>
+ ::DynRefImpl(DataRefImpl DynP, const OwningType *Owner)
+ : DynPimpl(DynP)
+ , OwningObject(Owner) {}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline bool DynRefImpl<target_endianness, is64Bits>
+ ::operator==(const DynRefImpl &Other) const {
+ return DynPimpl == Other.DynPimpl;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline bool DynRefImpl<target_endianness, is64Bits>
+ ::operator <(const DynRefImpl &Other) const {
+ return DynPimpl < Other.DynPimpl;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline error_code DynRefImpl<target_endianness, is64Bits>
+ ::getNext(DynRefImpl &Result) const {
+ return OwningObject->getDynNext(DynPimpl, Result);
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline int64_t DynRefImpl<target_endianness, is64Bits>
+ ::getTag() const {
+ return OwningObject->getDyn(DynPimpl)->d_tag;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline uint64_t DynRefImpl<target_endianness, is64Bits>
+ ::getVal() const {
+ return OwningObject->getDyn(DynPimpl)->d_un.d_val;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline uint64_t DynRefImpl<target_endianness, is64Bits>
+ ::getPtr() const {
+ return OwningObject->getDyn(DynPimpl)->d_un.d_ptr;
+}
+
+template<support::endianness target_endianness, bool is64Bits>
+inline DataRefImpl DynRefImpl<target_endianness, is64Bits>
+ ::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,
+ const SymbolRef &Sym,
+ StringRef &Version,
+ bool &IsDefault) {
+ // Little-endian 32-bit
+ if (const ELFObjectFile<support::little, false> *ELFObj =
+ dyn_cast<ELFObjectFile<support::little, false> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ // Big-endian 32-bit
+ if (const ELFObjectFile<support::big, false> *ELFObj =
+ dyn_cast<ELFObjectFile<support::big, false> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ // Little-endian 64-bit
+ if (const ELFObjectFile<support::little, true> *ELFObj =
+ dyn_cast<ELFObjectFile<support::little, true> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ // Big-endian 64-bit
+ if (const ELFObjectFile<support::big, true> *ELFObj =
+ dyn_cast<ELFObjectFile<support::big, true> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
+}
+
}
}
projects / oota-llvm.git / blobdiff