#ifndef LLVM_OBJECT_ELF_H
#define LLVM_OBJECT_ELF_H
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/ADT/DenseMap.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ELF.h"
namespace llvm {
namespace object {
+using support::endianness;
+
+template<typename T, int max_align>
+struct MaximumAlignment {
+ enum {value = AlignOf<T>::Alignment > max_align ? max_align
+ : AlignOf<T>::Alignment};
+};
+
+// 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>
+template<endianness target_endianness, std::size_t max_alignment>
struct ELFDataTypeTypedefHelperCommon {
typedef support::detail::packed_endian_specific_integral
- <uint16_t, target_endianness, support::aligned> Elf_Half;
+ <uint16_t, target_endianness,
+ MaximumAlignment<uint16_t, max_alignment>::value> Elf_Half;
typedef support::detail::packed_endian_specific_integral
- <uint32_t, target_endianness, support::aligned> Elf_Word;
+ <uint32_t, target_endianness,
+ MaximumAlignment<uint32_t, max_alignment>::value> Elf_Word;
typedef support::detail::packed_endian_specific_integral
- <int32_t, target_endianness, support::aligned> Elf_Sword;
+ <int32_t, target_endianness,
+ MaximumAlignment<int32_t, max_alignment>::value> Elf_Sword;
typedef support::detail::packed_endian_specific_integral
- <uint64_t, target_endianness, support::aligned> Elf_Xword;
+ <uint64_t, target_endianness,
+ MaximumAlignment<uint64_t, max_alignment>::value> Elf_Xword;
typedef support::detail::packed_endian_specific_integral
- <int64_t, target_endianness, support::aligned> Elf_Sxword;
+ <int64_t, target_endianness,
+ MaximumAlignment<int64_t, max_alignment>::value> Elf_Sxword;
};
-template<support::endianness target_endianness, bool is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
struct ELFDataTypeTypedefHelper;
/// ELF 32bit types.
-template<support::endianness target_endianness>
-struct ELFDataTypeTypedefHelper<target_endianness, false>
- : ELFDataTypeTypedefHelperCommon<target_endianness> {
+template<endianness target_endianness, std::size_t max_alignment>
+struct ELFDataTypeTypedefHelper<target_endianness, max_alignment, false>
+ : ELFDataTypeTypedefHelperCommon<target_endianness, max_alignment> {
typedef uint32_t value_type;
typedef support::detail::packed_endian_specific_integral
- <value_type, target_endianness, support::aligned> Elf_Addr;
+ <value_type, target_endianness,
+ MaximumAlignment<value_type, max_alignment>::value> Elf_Addr;
typedef support::detail::packed_endian_specific_integral
- <value_type, target_endianness, support::aligned> Elf_Off;
+ <value_type, target_endianness,
+ MaximumAlignment<value_type, max_alignment>::value> Elf_Off;
};
/// ELF 64bit types.
-template<support::endianness target_endianness>
-struct ELFDataTypeTypedefHelper<target_endianness, true>
- : ELFDataTypeTypedefHelperCommon<target_endianness>{
+template<endianness target_endianness, std::size_t max_alignment>
+struct ELFDataTypeTypedefHelper<target_endianness, max_alignment, true>
+ : ELFDataTypeTypedefHelperCommon<target_endianness, max_alignment>{
typedef uint64_t value_type;
typedef support::detail::packed_endian_specific_integral
- <value_type, target_endianness, support::aligned> Elf_Addr;
+ <value_type, target_endianness,
+ MaximumAlignment<value_type, max_alignment>::value> Elf_Addr;
typedef support::detail::packed_endian_specific_integral
- <value_type, target_endianness, support::aligned> Elf_Off;
+ <value_type, target_endianness,
+ MaximumAlignment<value_type, max_alignment>::value> Elf_Off;
};
// I really don't like doing this, but the alternative is copypasta.
-#define LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits) \
-typedef typename \
- ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Addr Elf_Addr; \
-typedef typename \
- ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Off Elf_Off; \
-typedef typename \
- ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Half Elf_Half; \
-typedef typename \
- ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Word Elf_Word; \
-typedef typename \
- ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Sword Elf_Sword; \
-typedef typename \
- ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Xword Elf_Xword; \
-typedef typename \
- ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Sxword Elf_Sxword;
+#define LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, is64Bits) \
+typedef typename ELFDataTypeTypedefHelper \
+ <target_endianness, max_alignment, is64Bits>::Elf_Addr Elf_Addr; \
+typedef typename ELFDataTypeTypedefHelper \
+ <target_endianness, max_alignment, is64Bits>::Elf_Off Elf_Off; \
+typedef typename ELFDataTypeTypedefHelper \
+ <target_endianness, max_alignment, is64Bits>::Elf_Half Elf_Half; \
+typedef typename ELFDataTypeTypedefHelper \
+ <target_endianness, max_alignment, is64Bits>::Elf_Word Elf_Word; \
+typedef typename ELFDataTypeTypedefHelper \
+ <target_endianness, max_alignment, is64Bits>::Elf_Sword Elf_Sword; \
+typedef typename ELFDataTypeTypedefHelper \
+ <target_endianness, max_alignment, is64Bits>::Elf_Xword Elf_Xword; \
+typedef typename ELFDataTypeTypedefHelper \
+ <target_endianness, max_alignment, is64Bits>::Elf_Sxword Elf_Sxword;
// Section header.
-template<support::endianness target_endianness, bool is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
struct Elf_Shdr_Base;
-template<support::endianness target_endianness>
-struct Elf_Shdr_Base<target_endianness, false> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, false)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Shdr_Base<target_endianness, max_alignment, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, false)
Elf_Word sh_name; // Section name (index into string table)
Elf_Word sh_type; // Section type (SHT_*)
Elf_Word sh_flags; // Section flags (SHF_*)
Elf_Word sh_entsize; // Size of records contained within the section
};
-template<support::endianness target_endianness>
-struct Elf_Shdr_Base<target_endianness, true> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, true)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Shdr_Base<target_endianness, max_alignment, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, true)
Elf_Word sh_name; // Section name (index into string table)
Elf_Word sh_type; // Section type (SHT_*)
Elf_Xword sh_flags; // Section flags (SHF_*)
Elf_Xword sh_entsize; // Size of records contained within the section
};
-template<support::endianness target_endianness, bool is64Bits>
-struct Elf_Shdr_Impl : Elf_Shdr_Base<target_endianness, is64Bits> {
- using Elf_Shdr_Base<target_endianness, is64Bits>::sh_entsize;
- using Elf_Shdr_Base<target_endianness, is64Bits>::sh_size;
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Shdr_Impl
+ : Elf_Shdr_Base<target_endianness, max_alignment, is64Bits> {
+ using Elf_Shdr_Base<target_endianness, max_alignment, is64Bits>::sh_entsize;
+ using Elf_Shdr_Base<target_endianness, max_alignment, is64Bits>::sh_size;
/// @brief Get the number of entities this section contains if it has any.
unsigned getEntityCount() const {
}
};
-template<support::endianness target_endianness, bool is64Bits>
+template< endianness target_endianness
+ , std::size_t max_alignment
+ , bool is64Bits>
struct Elf_Sym_Base;
-template<support::endianness target_endianness>
-struct Elf_Sym_Base<target_endianness, false> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, false)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Sym_Base<target_endianness, max_alignment, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, false)
Elf_Word st_name; // Symbol name (index into string table)
Elf_Addr st_value; // Value or address associated with the symbol
Elf_Word st_size; // Size of the symbol
Elf_Half st_shndx; // Which section (header table index) it's defined in
};
-template<support::endianness target_endianness>
-struct Elf_Sym_Base<target_endianness, true> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, true)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Sym_Base<target_endianness, max_alignment, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, true)
Elf_Word st_name; // Symbol name (index into string table)
unsigned char st_info; // Symbol's type and binding attributes
unsigned char st_other; // Must be zero; reserved
Elf_Xword st_size; // Size of the symbol
};
-template<support::endianness target_endianness, bool is64Bits>
-struct Elf_Sym_Impl : Elf_Sym_Base<target_endianness, is64Bits> {
- using Elf_Sym_Base<target_endianness, is64Bits>::st_info;
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Sym_Impl
+ : Elf_Sym_Base<target_endianness, max_alignment, is64Bits> {
+ using Elf_Sym_Base<target_endianness, max_alignment, is64Bits>::st_info;
// These accessors and mutators correspond to the ELF32_ST_BIND,
// ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
}
};
-template<support::endianness target_endianness, bool is64Bits, bool isRela>
+/// 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Versym_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, is64Bits)
+ Elf_Half vs_index; // Version index with flags (e.g. VERSYM_HIDDEN)
+};
+
+template<endianness target_endianness, std::size_t max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Verdef_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, is64Bits)
+ typedef
+ Elf_Verdaux_Impl<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Verdaux_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Verneed_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Vernaux_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Dyn_Base;
+
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Dyn_Base<target_endianness, max_alignment, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, false)
+ Elf_Sword d_tag;
+ union {
+ Elf_Word d_val;
+ Elf_Addr d_ptr;
+ } d_un;
+};
+
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Dyn_Base<target_endianness, max_alignment, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Dyn_Impl : Elf_Dyn_Base<target_endianness, max_alignment, is64Bits> {
+ using Elf_Dyn_Base<target_endianness, max_alignment, is64Bits>::d_tag;
+ using Elf_Dyn_Base<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+class ELFObjectFile;
+
+// DynRefImpl: Reference to an entry in the dynamic table
+// This is an ELF-specific interface.
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+class DynRefImpl {
+ typedef Elf_Dyn_Impl<target_endianness, max_alignment, is64Bits> Elf_Dyn;
+ typedef ELFObjectFile<target_endianness, max_alignment, 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< endianness target_endianness
+ , std::size_t max_alignment
+ , bool is64Bits
+ , bool isRela>
struct Elf_Rel_Base;
-template<support::endianness target_endianness>
-struct Elf_Rel_Base<target_endianness, false, false> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, false)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Rel_Base<target_endianness, max_alignment, false, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, false)
Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
Elf_Word r_info; // Symbol table index and type of relocation to apply
};
-template<support::endianness target_endianness>
-struct Elf_Rel_Base<target_endianness, true, false> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, true)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Rel_Base<target_endianness, max_alignment, true, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, true)
Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
Elf_Xword r_info; // Symbol table index and type of relocation to apply
};
-template<support::endianness target_endianness>
-struct Elf_Rel_Base<target_endianness, false, true> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, false)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Rel_Base<target_endianness, max_alignment, false, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, false)
Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
Elf_Word r_info; // Symbol table index and type of relocation to apply
Elf_Sword r_addend; // Compute value for relocatable field by adding this
};
-template<support::endianness target_endianness>
-struct Elf_Rel_Base<target_endianness, true, true> {
- LLVM_ELF_IMPORT_TYPES(target_endianness, true)
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Rel_Base<target_endianness, max_alignment, true, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, true)
Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
Elf_Xword r_info; // Symbol table index and type of relocation to apply
Elf_Sxword r_addend; // Compute value for relocatable field by adding this.
};
-template<support::endianness target_endianness, bool is64Bits, bool isRela>
+template< endianness target_endianness
+ , std::size_t max_alignment
+ , bool is64Bits
+ , bool isRela>
struct Elf_Rel_Impl;
-template<support::endianness target_endianness, bool isRela>
-struct Elf_Rel_Impl<target_endianness, true, isRela>
- : Elf_Rel_Base<target_endianness, true, isRela> {
- using Elf_Rel_Base<target_endianness, true, isRela>::r_info;
- LLVM_ELF_IMPORT_TYPES(target_endianness, true)
+template<endianness target_endianness, std::size_t max_alignment, bool isRela>
+struct Elf_Rel_Impl<target_endianness, max_alignment, true, isRela>
+ : Elf_Rel_Base<target_endianness, max_alignment, true, isRela> {
+ using Elf_Rel_Base<target_endianness, max_alignment, true, isRela>::r_info;
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, true)
// These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
// and ELF64_R_INFO macros defined in the ELF specification:
}
};
-template<support::endianness target_endianness, bool isRela>
-struct Elf_Rel_Impl<target_endianness, false, isRela>
- : Elf_Rel_Base<target_endianness, false, isRela> {
- using Elf_Rel_Base<target_endianness, false, isRela>::r_info;
- LLVM_ELF_IMPORT_TYPES(target_endianness, false)
+template<endianness target_endianness, std::size_t max_alignment, bool isRela>
+struct Elf_Rel_Impl<target_endianness, max_alignment, false, isRela>
+ : Elf_Rel_Base<target_endianness, max_alignment, false, isRela> {
+ using Elf_Rel_Base<target_endianness, max_alignment, false, isRela>::r_info;
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, false)
// These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
// and ELF32_R_INFO macros defined in the ELF specification:
}
};
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Ehdr_Impl {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, 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>
-class ELFObjectFile : public ObjectFile {
- LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+struct Elf_Phdr_Impl;
+
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Phdr_Impl<target_endianness, max_alignment, false> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, 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
+};
- typedef Elf_Shdr_Impl<target_endianness, is64Bits> Elf_Shdr;
- typedef Elf_Sym_Impl<target_endianness, is64Bits> Elf_Sym;
- typedef Elf_Rel_Impl<target_endianness, is64Bits, false> Elf_Rel;
- typedef Elf_Rel_Impl<target_endianness, is64Bits, true> Elf_Rela;
+template<endianness target_endianness, std::size_t max_alignment>
+struct Elf_Phdr_Impl<target_endianness, max_alignment, true> {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, 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_Xword p_filesz; // Num. of bytes in file image of segment (may be zero)
+ Elf_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero)
+ Elf_Xword p_align; // Segment alignment constraint
+};
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+class ELFObjectFile : public ObjectFile {
+ LLVM_ELF_IMPORT_TYPES(target_endianness, max_alignment, is64Bits)
+
+ typedef Elf_Ehdr_Impl<target_endianness, max_alignment, is64Bits> Elf_Ehdr;
+ typedef Elf_Shdr_Impl<target_endianness, max_alignment, is64Bits> Elf_Shdr;
+ typedef Elf_Sym_Impl<target_endianness, max_alignment, is64Bits> Elf_Sym;
+ typedef Elf_Dyn_Impl<target_endianness, max_alignment, is64Bits> Elf_Dyn;
+ typedef Elf_Phdr_Impl<target_endianness, max_alignment, is64Bits> Elf_Phdr;
+ typedef
+ Elf_Rel_Impl<target_endianness, max_alignment, is64Bits, false> Elf_Rel;
+ typedef
+ Elf_Rel_Impl<target_endianness, max_alignment, is64Bits, true> Elf_Rela;
+ typedef
+ Elf_Verdef_Impl<target_endianness, max_alignment, is64Bits> Elf_Verdef;
+ typedef
+ Elf_Verdaux_Impl<target_endianness, max_alignment, is64Bits> Elf_Verdaux;
+ typedef
+ Elf_Verneed_Impl<target_endianness, max_alignment, is64Bits> Elf_Verneed;
+ typedef
+ Elf_Vernaux_Impl<target_endianness, max_alignment, is64Bits> Elf_Vernaux;
+ typedef
+ Elf_Versym_Impl<target_endianness, max_alignment, is64Bits> Elf_Versym;
+ typedef DynRefImpl<target_endianness, max_alignment, 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 constant sized entities.
+ template<class EntT>
+ class ELFEntityIterator {
+ public:
+ typedef void difference_type;
+ typedef EntT value_type;
+ typedef std::forward_iterator_tag iterator_category;
+ typedef value_type &reference;
+ typedef value_type *pointer;
+
+ /// \brief Default construct iterator.
+ ELFEntityIterator() : EntitySize(0), Current(0) {}
+ ELFEntityIterator(uint64_t EntSize, const char *Start)
+ : EntitySize(EntSize)
+ , Current(Start) {}
+
+ reference operator *() {
+ assert(Current && "Attempted to dereference an invalid iterator!");
+ return *reinterpret_cast<pointer>(Current);
+ }
+
+ pointer operator ->() {
+ assert(Current && "Attempted to dereference an invalid iterator!");
+ return reinterpret_cast<pointer>(Current);
+ }
+
+ bool operator ==(const ELFEntityIterator &Other) {
+ return Current == Other.Current;
+ }
+
+ bool operator !=(const ELFEntityIterator &Other) {
+ return !(*this == Other);
+ }
+
+ ELFEntityIterator &operator ++() {
+ assert(Current && "Attempted to increment an invalid iterator!");
+ Current += EntitySize;
+ return *this;
+ }
+
+ ELFEntityIterator operator ++(int) {
+ ELFEntityIterator Tmp = *this;
+ ++*this;
+ return Tmp;
+ }
+
+ private:
+ const uint64_t EntitySize;
+ 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;
+ uint64_t getSymbolIndex(const Elf_Sym *sym) const;
protected:
virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
virtual error_code getSymbolSection(DataRefImpl Symb,
section_iterator &Res) const;
+ virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
+
+ friend class DynRefImpl<target_endianness, max_alignment, 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 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 isSectionReadOnlyData(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 ELFEntityIterator<const Elf_Rela> Elf_Rela_Iter;
+ typedef ELFEntityIterator<const Elf_Rel> Elf_Rel_Iter;
+
+ Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
+ return Elf_Rela_Iter(sec->sh_entsize,
+ (const char *)(base() + sec->sh_offset));
+ }
+
+ Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
+ return Elf_Rela_Iter(sec->sh_entsize, (const char *)
+ (base() + sec->sh_offset + sec->sh_size));
+ }
+
+ Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
+ return Elf_Rel_Iter(sec->sh_entsize,
+ (const char *)(base() + sec->sh_offset));
+ }
+
+ Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
+ return Elf_Rel_Iter(sec->sh_entsize, (const char *)
+ (base() + sec->sh_offset + sec->sh_size));
+ }
+
+ /// \brief Iterate over program header table.
+ typedef ELFEntityIterator<const Elf_Phdr> Elf_Phdr_Iter;
+
+ Elf_Phdr_Iter begin_program_headers() const {
+ return Elf_Phdr_Iter(Header->e_phentsize,
+ (const char*)base() + Header->e_phoff);
+ }
+
+ Elf_Phdr_Iter end_program_headers() const {
+ return Elf_Phdr_Iter(Header->e_phentsize,
+ (const char*)base() +
+ Header->e_phoff +
+ (Header->e_phnum * Header->e_phentsize));
+ }
+
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; }
};
-template<support::endianness target_endianness, bool is64Bits>
-void ELFObjectFile<target_endianness, is64Bits>
+// Iterate through the version definitions, and place each Elf_Verdef
+// in the VersionMap according to its index.
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+void ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+void ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+void ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+void ELFObjectFile<target_endianness, max_alignment, is64Bits>
::validateSymbol(DataRefImpl Symb) const {
const Elf_Sym *symb = getSymbol(Symb);
const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
report_fatal_error("Symb must point to a valid symbol!");
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolNext(DataRefImpl Symb,
SymbolRef &Result) const {
validateSymbol(Symb);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolName(DataRefImpl Symb,
StringRef &Result) const {
validateSymbol(Symb);
return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
}
-template<support::endianness target_endianness, bool is64Bits>
-ELF::Elf64_Word ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+ELF::Elf64_Word ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolTableIndex(const Elf_Sym *symb) const {
if (symb->st_shndx == ELF::SHN_XINDEX)
return ExtendedSymbolTable.lookup(symb);
return symb->st_shndx;
}
-template<support::endianness target_endianness, bool is64Bits>
-const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
-ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Shdr *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSection(const Elf_Sym *symb) const {
if (symb->st_shndx == ELF::SHN_XINDEX)
return getSection(ExtendedSymbolTable.lookup(symb));
return getSection(symb->st_shndx);
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Shdr *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getElfSection(section_iterator &It) const {
+ llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
+ return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Sym *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getElfSymbol(symbol_iterator &It) const {
+ return getSymbol(It->getRawDataRefImpl());
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Sym *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getElfSymbol(uint32_t index) const {
+ DataRefImpl SymbolData;
+ SymbolData.d.a = index;
+ SymbolData.d.b = 1;
+ return getSymbol(SymbolData);
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolFileOffset(DataRefImpl Symb,
uint64_t &Result) const {
validateSymbol(Symb);
}
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolAddress(DataRefImpl Symb,
uint64_t &Result) const {
validateSymbol(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;
}
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolSize(DataRefImpl Symb,
uint64_t &Result) const {
validateSymbol(Symb);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolNMTypeChar(DataRefImpl Symb,
char &Result) const {
validateSymbol(Symb);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolType(DataRefImpl Symb,
SymbolRef::Type &Result) const {
validateSymbol(Symb);
const Elf_Sym *symb = getSymbol(Symb);
- if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF) {
- Result = SymbolRef::ST_External;
- return object_error::success;
- }
-
switch (symb->getType()) {
+ case ELF::STT_NOTYPE:
+ Result = SymbolRef::ST_Unknown;
+ break;
case ELF::STT_SECTION:
Result = SymbolRef::ST_Debug;
break;
Result = SymbolRef::ST_Function;
break;
case ELF::STT_OBJECT:
+ case ELF::STT_COMMON:
+ case ELF::STT_TLS:
Result = SymbolRef::ST_Data;
break;
default:
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolFlags(DataRefImpl Symb,
uint32_t &Result) const {
validateSymbol(Symb);
symb->getType() == ELF::STT_SECTION)
Result |= SymbolRef::SF_FormatSpecific;
+ if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
+ Result |= SymbolRef::SF_Undefined;
+
+ if (symb->getType() == ELF::STT_COMMON ||
+ getSymbolTableIndex(symb) == ELF::SHN_COMMON)
+ Result |= SymbolRef::SF_Common;
+
+ if (symb->getType() == ELF::STT_TLS)
+ Result |= SymbolRef::SF_ThreadLocal;
+
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolSection(DataRefImpl Symb,
section_iterator &Res) const {
validateSymbol(Symb);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getSymbolValue(DataRefImpl Symb,
+ uint64_t &Val) const {
+ validateSymbol(Symb);
+ const Elf_Sym *symb = getSymbol(Symb);
+ Val = symb->st_value;
+ return object_error::success;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSectionNext(DataRefImpl Sec, SectionRef &Result) const {
const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
sec += Header->e_shentsize;
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSectionName(DataRefImpl Sec,
StringRef &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSectionAddress(DataRefImpl Sec,
uint64_t &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSectionSize(DataRefImpl Sec,
uint64_t &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSectionContents(DataRefImpl Sec,
StringRef &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSectionAlignment(DataRefImpl Sec,
uint64_t &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::isSectionText(DataRefImpl Sec,
bool &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::isSectionData(DataRefImpl Sec,
bool &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::isSectionBSS(DataRefImpl Sec,
bool &Result) const {
const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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.
+ Result = sec->sh_type == ELF::SHT_NOBITS;
+ return object_error::success;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::isSectionReadOnlyData(DataRefImpl Sec,
+ bool &Result) const {
+ const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
+ if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
+ Result = false;
+ else
+ Result = true;
+ return object_error::success;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::sectionContainsSymbol(DataRefImpl Sec,
DataRefImpl Symb,
bool &Result) const {
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-relocation_iterator ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+relocation_iterator ELFObjectFile<target_endianness, max_alignment, 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()) {
return relocation_iterator(RelocationRef(RelData, this));
}
-template<support::endianness target_endianness, bool is64Bits>
-relocation_iterator ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+relocation_iterator ELFObjectFile<target_endianness, max_alignment, 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()) {
}
// Relocations
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationNext(DataRefImpl Rel,
RelocationRef &Result) const {
++Rel.w.c;
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationSymbol(DataRefImpl Rel,
SymbolRef &Result) const {
uint32_t symbolIdx;
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationAddress(DataRefImpl Rel,
uint64_t &Result) const {
uint64_t offset;
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationOffset(DataRefImpl Rel,
uint64_t &Result) const {
uint64_t offset;
return object_error::success;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationType(DataRefImpl Rel,
uint64_t &Result) const {
const Elf_Shdr *sec = getSection(Rel.w.b);
#define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
case ELF::enum: res = #enum; break;
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationTypeName(DataRefImpl Rel,
SmallVectorImpl<char> &Result) const {
const Elf_Shdr *sec = getSection(Rel.w.b);
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";
}
#undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationAdditionalInfo(DataRefImpl Rel,
int64_t &Result) const {
const Elf_Shdr *sec = getSection(Rel.w.b);
}
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getRelocationValueString(DataRefImpl Rel,
SmallVectorImpl<char> &Result) const {
const Elf_Shdr *sec = getSection(Rel.w.b);
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";
}
}
// Verify that the last byte in the string table in a null.
-template<support::endianness target_endianness, bool is64Bits>
-void ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+void ELFObjectFile<target_endianness, max_alignment, is64Bits>
::VerifyStrTab(const Elf_Shdr *sh) const {
const char *strtab = (const char*)base() + sh->sh_offset;
if (strtab[sh->sh_size - 1] != 0)
report_fatal_error("String table must end with a null terminator!");
}
-template<support::endianness target_endianness, bool is64Bits>
-ELFObjectFile<target_endianness, is64Bits>::ELFObjectFile(MemoryBuffer *Object
- , error_code &ec)
- : ObjectFile(Binary::isELF, Object, ec)
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::ELFObjectFile(MemoryBuffer *Object, error_code &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;
}
}
}
-template<support::endianness target_endianness, bool is64Bits>
-symbol_iterator ELFObjectFile<target_endianness, is64Bits>
+// Get the symbol table index in the symtab section given a symbol
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+uint64_t ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getSymbolIndex(const Elf_Sym *Sym) const {
+ assert(SymbolTableSections.size() == 1 && "Only one symbol table supported!");
+ const Elf_Shdr *SymTab = *SymbolTableSections.begin();
+ uintptr_t SymLoc = uintptr_t(Sym);
+ uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
+ assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
+ uint64_t SymOffset = SymLoc - SymTabLoc;
+ assert(SymOffset % SymTab->sh_entsize == 0 &&
+ "Symbol not multiple of symbol size!");
+ return SymOffset / SymTab->sh_entsize;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+symbol_iterator ELFObjectFile<target_endianness, max_alignment, 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();
return symbol_iterator(SymbolRef(SymbolData, this));
}
-template<support::endianness target_endianness, bool is64Bits>
-symbol_iterator ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+symbol_iterator ELFObjectFile<target_endianness, max_alignment, 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));
}
-template<support::endianness target_endianness, bool is64Bits>
-symbol_iterator ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+symbol_iterator ELFObjectFile<target_endianness, max_alignment, 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();
return symbol_iterator(SymbolRef(SymbolData, this));
}
-template<support::endianness target_endianness, bool is64Bits>
-symbol_iterator ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+symbol_iterator ELFObjectFile<target_endianness, max_alignment, 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));
}
-template<support::endianness target_endianness, bool is64Bits>
-section_iterator ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+section_iterator ELFObjectFile<target_endianness, max_alignment, 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));
}
-template<support::endianness target_endianness, bool is64Bits>
-section_iterator ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+section_iterator ELFObjectFile<target_endianness, max_alignment, 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>
-uint8_t ELFObjectFile<target_endianness, is64Bits>::getBytesInAddress() const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+typename ELFObjectFile<target_endianness, max_alignment, is64Bits>::dyn_iterator
+ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+typename ELFObjectFile<target_endianness, max_alignment, is64Bits>::dyn_iterator
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::end_dynamic_table() const {
+ DataRefImpl DynData;
+ DynData.d.a = std::numeric_limits<uint32_t>::max();
+ return dyn_iterator(DynRef(DynData, this));
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+StringRef
+ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+library_iterator ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+library_iterator ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+uint8_t ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getBytesInAddress() const {
return is64Bits ? 8 : 4;
}
-template<support::endianness target_endianness, bool is64Bits>
-StringRef ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+StringRef ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getFileFormatName() const {
switch(Header->e_ident[ELF::EI_CLASS]) {
case ELF::ELFCLASS32:
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";
}
}
}
-template<support::endianness target_endianness, bool is64Bits>
-unsigned ELFObjectFile<target_endianness, is64Bits>::getArch() const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+unsigned ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getArch() const {
switch(Header->e_machine) {
case ELF::EM_386:
return Triple::x86;
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;
}
}
-template<support::endianness target_endianness, bool is64Bits>
-uint64_t ELFObjectFile<target_endianness, is64Bits>::getNumSections() const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+uint64_t ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getNumSections() const {
assert(Header && "Header not initialized!");
if (Header->e_shnum == ELF::SHN_UNDEF) {
assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
return Header->e_shnum;
}
-template<support::endianness target_endianness, bool is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
uint64_t
-ELFObjectFile<target_endianness, is64Bits>::getStringTableIndex() const {
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getStringTableIndex() const {
if (Header->e_shnum == ELF::SHN_UNDEF) {
if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
return SectionHeaderTable->sh_link;
return Header->e_shstrndx;
}
-
-template<support::endianness target_endianness, bool is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
template<typename T>
inline const T *
-ELFObjectFile<target_endianness, is64Bits>::getEntry(uint16_t Section,
- uint32_t Entry) const {
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getEntry(uint16_t Section, uint32_t Entry) const {
return getEntry<T>(getSection(Section), Entry);
}
-template<support::endianness target_endianness, bool is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
template<typename T>
inline const T *
-ELFObjectFile<target_endianness, is64Bits>::getEntry(const Elf_Shdr * Section,
- uint32_t Entry) const {
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getEntry(const Elf_Shdr * Section, uint32_t Entry) const {
return reinterpret_cast<const T *>(
base()
+ Section->sh_offset
+ (Entry * Section->sh_entsize));
}
-template<support::endianness target_endianness, bool is64Bits>
-const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
-ELFObjectFile<target_endianness, is64Bits>::getSymbol(DataRefImpl Symb) const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Sym *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getSymbol(DataRefImpl Symb) const {
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_Rel *
-ELFObjectFile<target_endianness, is64Bits>::getRel(DataRefImpl Rel) const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Dyn *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getDyn(DataRefImpl DynData) const {
+ return getEntry<Elf_Dyn>(dot_dynamic_sec, DynData.d.a);
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Rel *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getRel(DataRefImpl Rel) const {
return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c);
}
-template<support::endianness target_endianness, bool is64Bits>
-const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rela *
-ELFObjectFile<target_endianness, is64Bits>::getRela(DataRefImpl Rela) const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Rela *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getRela(DataRefImpl Rela) const {
return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c);
}
-template<support::endianness target_endianness, bool is64Bits>
-const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
-ELFObjectFile<target_endianness, is64Bits>::getSection(DataRefImpl Symb) const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Shdr *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getSection(DataRefImpl Symb) const {
const Elf_Shdr *sec = getSection(Symb.d.b);
if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
// FIXME: Proper error handling.
return sec;
}
-template<support::endianness target_endianness, bool is64Bits>
-const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
-ELFObjectFile<target_endianness, is64Bits>::getSection(uint32_t index) const {
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const typename ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::Elf_Shdr *
+ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getSection(uint32_t index) const {
if (index == 0)
return 0;
if (!SectionHeaderTable || index >= getNumSections())
+ (index * Header->e_shentsize));
}
-template<support::endianness target_endianness, bool is64Bits>
-const char *ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const char *ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getString(uint32_t section,
ELF::Elf32_Word offset) const {
return getString(getSection(section), offset);
}
-template<support::endianness target_endianness, bool is64Bits>
-const char *ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+const char *ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getString(const Elf_Shdr *section,
ELF::Elf32_Word offset) const {
assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
return (const char *)base() + section->sh_offset + offset;
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
::getSymbolName(const Elf_Shdr *section,
const Elf_Sym *symb,
StringRef &Result) const {
return object_error::success;
}
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, is64Bits>
+ ::getSectionName(const Elf_Shdr *section,
+ StringRef &Result) const {
+ Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
+ return object_error::success;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+error_code ELFObjectFile<target_endianness, max_alignment, 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<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline DynRefImpl<target_endianness, max_alignment, is64Bits>
+ ::DynRefImpl(DataRefImpl DynP, const OwningType *Owner)
+ : DynPimpl(DynP)
+ , OwningObject(Owner) {}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline bool DynRefImpl<target_endianness, max_alignment, is64Bits>
+ ::operator==(const DynRefImpl &Other) const {
+ return DynPimpl == Other.DynPimpl;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline bool DynRefImpl<target_endianness, max_alignment, is64Bits>
+ ::operator <(const DynRefImpl &Other) const {
+ return DynPimpl < Other.DynPimpl;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline error_code DynRefImpl<target_endianness, max_alignment, is64Bits>
+ ::getNext(DynRefImpl &Result) const {
+ return OwningObject->getDynNext(DynPimpl, Result);
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline int64_t DynRefImpl<target_endianness, max_alignment, is64Bits>
+ ::getTag() const {
+ return OwningObject->getDyn(DynPimpl)->d_tag;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline uint64_t DynRefImpl<target_endianness, max_alignment, is64Bits>
+ ::getVal() const {
+ return OwningObject->getDyn(DynPimpl)->d_un.d_val;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline uint64_t DynRefImpl<target_endianness, max_alignment, is64Bits>
+ ::getPtr() const {
+ return OwningObject->getDyn(DynPimpl)->d_un.d_ptr;
+}
+
+template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
+inline DataRefImpl DynRefImpl<target_endianness, max_alignment, 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, 4, false> *ELFObj =
+ dyn_cast<ELFObjectFile<support::little, 4, false> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ // Big-endian 32-bit
+ if (const ELFObjectFile<support::big, 4, false> *ELFObj =
+ dyn_cast<ELFObjectFile<support::big, 4, false> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ // Little-endian 64-bit
+ if (const ELFObjectFile<support::little, 8, true> *ELFObj =
+ dyn_cast<ELFObjectFile<support::little, 8, true> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ // Big-endian 64-bit
+ if (const ELFObjectFile<support::big, 8, true> *ELFObj =
+ dyn_cast<ELFObjectFile<support::big, 8, true> >(Obj))
+ return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
+
+ llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
+}
+
}
}
projects / oota-llvm.git / blobdiff