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-rw-r--r--lib/Object/Archive.cpp6
-rw-r--r--lib/Object/COFFObjectFile.cpp79
-rw-r--r--lib/Object/ELFObjectFile.cpp1486
-rw-r--r--lib/Object/MachOObject.cpp4
-rw-r--r--lib/Object/MachOObjectFile.cpp102
-rw-r--r--lib/Object/ObjectFile.cpp4
6 files changed, 148 insertions, 1533 deletions
diff --git a/lib/Object/Archive.cpp b/lib/Object/Archive.cpp
index 8bdab16..b67377c 100644
--- a/lib/Object/Archive.cpp
+++ b/lib/Object/Archive.cpp
@@ -19,7 +19,7 @@
using namespace llvm;
using namespace object;
-static const StringRef Magic = "!<arch>\n";
+static const char *Magic = "!<arch>\n";
namespace {
struct ArchiveMemberHeader {
@@ -74,6 +74,8 @@ static bool isInternalMember(const ArchiveMemberHeader &amh) {
return false;
}
+void Archive::anchor() { }
+
Archive::Child Archive::Child::getNext() const {
size_t SpaceToSkip = sizeof(ArchiveMemberHeader) +
ToHeader(Data.data())->getSize();
@@ -198,7 +200,7 @@ Archive::Archive(MemoryBuffer *source, error_code &ec)
}
Archive::child_iterator Archive::begin_children(bool skip_internal) const {
- const char *Loc = Data->getBufferStart() + Magic.size();
+ const char *Loc = Data->getBufferStart() + strlen(Magic);
size_t Size = sizeof(ArchiveMemberHeader) +
ToHeader(Loc)->getSize();
Child c(this, StringRef(Loc, Size));
diff --git a/lib/Object/COFFObjectFile.cpp b/lib/Object/COFFObjectFile.cpp
index bdf5431..a3fdd5b 100644
--- a/lib/Object/COFFObjectFile.cpp
+++ b/lib/Object/COFFObjectFile.cpp
@@ -143,7 +143,7 @@ error_code COFFObjectFile::getSymbolType(DataRefImpl Symb,
Result = SymbolRef::ST_Other;
if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED) {
- Result = SymbolRef::ST_External;
+ Result = SymbolRef::ST_Unknown;
} else {
if (symb->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION) {
Result = SymbolRef::ST_Function;
@@ -159,17 +159,27 @@ error_code COFFObjectFile::getSymbolType(DataRefImpl Symb,
return object_error::success;
}
-error_code COFFObjectFile::isSymbolGlobal(DataRefImpl Symb,
- bool &Result) const {
+error_code COFFObjectFile::getSymbolFlags(DataRefImpl Symb,
+ uint32_t &Result) const {
const coff_symbol *symb = toSymb(Symb);
- Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL);
- return object_error::success;
-}
+ Result = SymbolRef::SF_None;
+
+ // TODO: Correctly set SF_FormatSpecific, SF_ThreadLocal, SF_Common
+
+ if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ symb->SectionNumber == COFF::IMAGE_SYM_UNDEFINED)
+ Result |= SymbolRef::SF_Undefined;
+
+ // TODO: This are certainly too restrictive.
+ if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
+ Result |= SymbolRef::SF_Global;
+
+ if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL)
+ Result |= SymbolRef::SF_Weak;
+
+ if (symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE)
+ Result |= SymbolRef::SF_Absolute;
-error_code COFFObjectFile::isSymbolWeak(DataRefImpl Symb,
- bool &Result) const {
- const coff_symbol *symb = toSymb(Symb);
- Result = (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL);
return object_error::success;
}
@@ -262,19 +272,6 @@ error_code COFFObjectFile::getSymbolNMTypeChar(DataRefImpl Symb,
return object_error::success;
}
-error_code COFFObjectFile::isSymbolInternal(DataRefImpl Symb,
- bool &Result) const {
- Result = false;
- return object_error::success;
-}
-
-error_code COFFObjectFile::isSymbolAbsolute(DataRefImpl Symb,
- bool &Result) const {
- const coff_symbol *symb = toSymb(Symb);
- Result = symb->SectionNumber == COFF::IMAGE_SYM_ABSOLUTE;
- return object_error::success;
-}
-
error_code COFFObjectFile::getSymbolSection(DataRefImpl Symb,
section_iterator &Result) const {
const coff_symbol *symb = toSymb(Symb);
@@ -508,6 +505,32 @@ symbol_iterator COFFObjectFile::end_symbols() const {
return symbol_iterator(SymbolRef(ret, this));
}
+symbol_iterator COFFObjectFile::begin_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
+}
+
+symbol_iterator COFFObjectFile::end_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in COFFObjectFile");
+}
+
+library_iterator COFFObjectFile::begin_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
+}
+
+library_iterator COFFObjectFile::end_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Libraries needed unimplemented in COFFObjectFile");
+}
+
+StringRef COFFObjectFile::getLoadName() const {
+ // COFF does not have this field.
+ return "";
+}
+
+
section_iterator COFFObjectFile::begin_sections() const {
DataRefImpl ret;
std::memset(&ret, 0, sizeof(DataRefImpl));
@@ -719,6 +742,16 @@ error_code COFFObjectFile::getRelocationValueString(DataRefImpl Rel,
return object_error::success;
}
+error_code COFFObjectFile::getLibraryNext(DataRefImpl LibData,
+ LibraryRef &Result) const {
+ report_fatal_error("getLibraryNext not implemented in COFFObjectFile");
+}
+
+error_code COFFObjectFile::getLibraryPath(DataRefImpl LibData,
+ StringRef &Result) const {
+ report_fatal_error("getLibraryPath not implemented in COFFObjectFile");
+}
+
namespace llvm {
ObjectFile *ObjectFile::createCOFFObjectFile(MemoryBuffer *Object) {
diff --git a/lib/Object/ELFObjectFile.cpp b/lib/Object/ELFObjectFile.cpp
index a6c4c25..ab5f810 100644
--- a/lib/Object/ELFObjectFile.cpp
+++ b/lib/Object/ELFObjectFile.cpp
@@ -7,1480 +7,44 @@
//
//===----------------------------------------------------------------------===//
//
-// This file defines the ELFObjectFile class.
+// Part of the ELFObjectFile class implementation.
//
//===----------------------------------------------------------------------===//
-#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/ELF.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/raw_ostream.h"
-#include <algorithm>
-#include <limits>
-#include <utility>
+#include "llvm/Object/ELF.h"
-using namespace llvm;
-using namespace object;
-
-// Templates to choose Elf_Addr and Elf_Off depending on is64Bits.
-namespace {
-template<support::endianness target_endianness>
-struct ELFDataTypeTypedefHelperCommon {
- typedef support::detail::packed_endian_specific_integral
- <uint16_t, target_endianness, support::aligned> Elf_Half;
- typedef support::detail::packed_endian_specific_integral
- <uint32_t, target_endianness, support::aligned> Elf_Word;
- typedef support::detail::packed_endian_specific_integral
- <int32_t, target_endianness, support::aligned> Elf_Sword;
- typedef support::detail::packed_endian_specific_integral
- <uint64_t, target_endianness, support::aligned> Elf_Xword;
- typedef support::detail::packed_endian_specific_integral
- <int64_t, target_endianness, support::aligned> Elf_Sxword;
-};
-}
-
-namespace {
-template<support::endianness target_endianness, bool is64Bits>
-struct ELFDataTypeTypedefHelper;
-
-/// ELF 32bit types.
-template<support::endianness target_endianness>
-struct ELFDataTypeTypedefHelper<target_endianness, false>
- : ELFDataTypeTypedefHelperCommon<target_endianness> {
- typedef support::detail::packed_endian_specific_integral
- <uint32_t, target_endianness, support::aligned> Elf_Addr;
- typedef support::detail::packed_endian_specific_integral
- <uint32_t, target_endianness, support::aligned> Elf_Off;
-};
-
-/// ELF 64bit types.
-template<support::endianness target_endianness>
-struct ELFDataTypeTypedefHelper<target_endianness, true>
- : ELFDataTypeTypedefHelperCommon<target_endianness>{
- typedef support::detail::packed_endian_specific_integral
- <uint64_t, target_endianness, support::aligned> Elf_Addr;
- typedef support::detail::packed_endian_specific_integral
- <uint64_t, target_endianness, support::aligned> 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;
-
- // Section header.
-namespace {
-template<support::endianness target_endianness, 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)
- 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_Addr sh_addr; // Address where section is to be loaded
- Elf_Off sh_offset; // File offset of section data, in bytes
- Elf_Word sh_size; // Size of section, in bytes
- Elf_Word sh_link; // Section type-specific header table index link
- Elf_Word sh_info; // Section type-specific extra information
- Elf_Word sh_addralign;// Section address alignment
- 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)
- 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_Addr sh_addr; // Address where section is to be loaded
- Elf_Off sh_offset; // File offset of section data, in bytes
- Elf_Xword sh_size; // Size of section, in bytes
- Elf_Word sh_link; // Section type-specific header table index link
- Elf_Word sh_info; // Section type-specific extra information
- Elf_Xword sh_addralign;// Section address alignment
- 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;
-
- /// @brief Get the number of entities this section contains if it has any.
- unsigned getEntityCount() const {
- if (sh_entsize == 0)
- return 0;
- return sh_size / sh_entsize;
- }
-};
-}
-
-namespace {
-template<support::endianness target_endianness, 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)
- 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
- unsigned char st_info; // Symbol's type and binding attributes
- unsigned char st_other; // Must be zero; reserved
- 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)
- 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_Half st_shndx; // Which section (header table index) it's defined in
- Elf_Addr st_value; // Value or address associated with the symbol
- 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;
-
- // These accessors and mutators correspond to the ELF32_ST_BIND,
- // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
- unsigned char getBinding() const { return st_info >> 4; }
- unsigned char getType() const { return st_info & 0x0f; }
- void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
- void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
- void setBindingAndType(unsigned char b, unsigned char t) {
- st_info = (b << 4) + (t & 0x0f);
- }
-};
-}
-
-namespace {
-template<support::endianness target_endianness, 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)
- 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)
- 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)
- 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)
- 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>
-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)
-
- // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
- // and ELF64_R_INFO macros defined in the ELF specification:
- uint64_t getSymbol() const { return (r_info >> 32); }
- unsigned char getType() const {
- return (unsigned char) (r_info & 0xffffffffL);
- }
- void setSymbol(uint64_t s) { setSymbolAndType(s, getType()); }
- void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
- void setSymbolAndType(uint64_t s, unsigned char t) {
- r_info = (s << 32) + (t&0xffffffffL);
- }
-};
-
-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)
-
- // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
- // and ELF32_R_INFO macros defined in the ELF specification:
- uint32_t getSymbol() const { return (r_info >> 8); }
- unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); }
- void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
- void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
- void setSymbolAndType(uint32_t s, unsigned char t) {
- r_info = (s << 8) + t;
- }
-};
+namespace llvm {
-}
+using namespace object;
namespace {
-template<support::endianness target_endianness, bool is64Bits>
-class ELFObjectFile : public ObjectFile {
- LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
-
- 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;
-
- 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]; }
- };
-
- typedef SmallVector<const Elf_Shdr*, 1> Sections_t;
- typedef DenseMap<unsigned, unsigned> IndexMap_t;
- typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t;
-
- const Elf_Ehdr *Header;
- const Elf_Shdr *SectionHeaderTable;
- const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
- const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
- Sections_t SymbolTableSections;
- IndexMap_t SymbolTableSectionsIndexMap;
- DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
-
- /// @brief Map sections to an array of relocation sections that reference
- /// them sorted by section index.
- RelocMap_t SectionRelocMap;
-
- /// @brief Get the relocation section that contains \a Rel.
- const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
- return getSection(Rel.w.b);
- }
-
- void validateSymbol(DataRefImpl Symb) const;
- bool isRelocationHasAddend(DataRefImpl Rel) const;
- template<typename T>
- const T *getEntry(uint16_t Section, uint32_t Entry) const;
- template<typename T>
- const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
- const Elf_Sym *getSymbol(DataRefImpl Symb) const;
- const Elf_Shdr *getSection(DataRefImpl index) const;
- const Elf_Shdr *getSection(uint32_t index) const;
- const Elf_Rel *getRel(DataRefImpl Rel) const;
- 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_Sym *Symb, StringRef &Res) const;
-
-protected:
- virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
- virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
- virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
- virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
- virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
- virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
- virtual error_code isSymbolInternal(DataRefImpl Symb, bool &Res) const;
- virtual error_code isSymbolGlobal(DataRefImpl Symb, bool &Res) const;
- virtual error_code isSymbolWeak(DataRefImpl Symb, bool &Res) const;
- virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
- virtual error_code isSymbolAbsolute(DataRefImpl Symb, bool &Res) const;
- virtual error_code getSymbolSection(DataRefImpl Symb,
- section_iterator &Res) const;
-
- virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
- virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
- virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
- virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
- virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
- virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
- virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
- virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
- virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
- virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
- bool &Result) const;
- virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
- virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
-
- virtual error_code getRelocationNext(DataRefImpl Rel,
- RelocationRef &Res) const;
- virtual error_code getRelocationAddress(DataRefImpl Rel,
- uint64_t &Res) const;
- virtual error_code getRelocationOffset(DataRefImpl Rel,
- uint64_t &Res) const;
- virtual error_code getRelocationSymbol(DataRefImpl Rel,
- SymbolRef &Res) const;
- virtual error_code getRelocationType(DataRefImpl Rel,
- uint64_t &Res) const;
- virtual error_code getRelocationTypeName(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const;
- virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
- int64_t &Res) const;
- virtual error_code getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const;
-
-public:
- ELFObjectFile(MemoryBuffer *Object, error_code &ec);
- virtual symbol_iterator begin_symbols() const;
- virtual symbol_iterator end_symbols() const;
- virtual section_iterator begin_sections() const;
- virtual section_iterator end_sections() const;
-
- virtual uint8_t getBytesInAddress() const;
- virtual StringRef getFileFormatName() const;
- virtual unsigned getArch() 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;
-
- static inline bool classof(const Binary *v) {
- return v->getType() == isELF;
- }
- static inline bool classof(const ELFObjectFile *v) { return true; }
-};
-} // end namespace
-
-template<support::endianness target_endianness, bool is64Bits>
-void ELFObjectFile<target_endianness, is64Bits>
- ::validateSymbol(DataRefImpl Symb) const {
- const Elf_Sym *symb = getSymbol(Symb);
- const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
- // FIXME: We really need to do proper error handling in the case of an invalid
- // input file. Because we don't use exceptions, I think we'll just pass
- // an error object around.
- if (!( symb
- && SymbolTableSection
- && symb >= (const Elf_Sym*)(base()
- + SymbolTableSection->sh_offset)
- && symb < (const Elf_Sym*)(base()
- + SymbolTableSection->sh_offset
- + SymbolTableSection->sh_size)))
- // FIXME: Proper error handling.
- report_fatal_error("Symb must point to a valid symbol!");
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolNext(DataRefImpl Symb,
- SymbolRef &Result) const {
- validateSymbol(Symb);
- const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
-
- ++Symb.d.a;
- // Check to see if we are at the end of this symbol table.
- if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
- // We are at the end. If there are other symbol tables, jump to them.
- ++Symb.d.b;
- Symb.d.a = 1; // The 0th symbol in ELF is fake.
- // Otherwise return the terminator.
- if (Symb.d.b >= SymbolTableSections.size()) {
- Symb.d.a = std::numeric_limits<uint32_t>::max();
- Symb.d.b = std::numeric_limits<uint32_t>::max();
- }
- }
-
- Result = SymbolRef(Symb, this);
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolName(DataRefImpl Symb,
- StringRef &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
- return getSymbolName(symb, Result);
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-ELF::Elf64_Word ELFObjectFile<target_endianness, 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>
- ::getSection(const Elf_Sym *symb) const {
- if (symb->st_shndx == ELF::SHN_XINDEX)
- return getSection(ExtendedSymbolTable.lookup(symb));
- if (symb->st_shndx >= ELF::SHN_LORESERVE)
- return 0;
- return getSection(symb->st_shndx);
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolFileOffset(DataRefImpl Symb,
- uint64_t &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
- const Elf_Shdr *Section;
- switch (getSymbolTableIndex(symb)) {
- case ELF::SHN_COMMON:
- // Undefined symbols have no address yet.
- case ELF::SHN_UNDEF:
- Result = UnknownAddressOrSize;
- return object_error::success;
- case ELF::SHN_ABS:
- Result = symb->st_value;
- return object_error::success;
- default: Section = getSection(symb);
- }
-
- switch (symb->getType()) {
- case ELF::STT_SECTION:
- Result = Section ? Section->sh_addr : UnknownAddressOrSize;
- return object_error::success;
- case ELF::STT_FUNC:
- case ELF::STT_OBJECT:
- case ELF::STT_NOTYPE:
- Result = symb->st_value +
- (Section ? Section->sh_offset - Section->sh_addr : 0);
- return object_error::success;
- default:
- Result = UnknownAddressOrSize;
- return object_error::success;
- }
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolAddress(DataRefImpl Symb,
- uint64_t &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
- const Elf_Shdr *Section;
- switch (getSymbolTableIndex(symb)) {
- case ELF::SHN_COMMON:
- // Undefined symbols have no address yet.
- case ELF::SHN_UNDEF:
- Result = UnknownAddressOrSize;
- return object_error::success;
- case ELF::SHN_ABS:
- Result = symb->st_value;
- return object_error::success;
- default: Section = getSection(symb);
- }
-
- switch (symb->getType()) {
- case ELF::STT_SECTION:
- Result = Section ? Section->sh_addr : UnknownAddressOrSize;
- return object_error::success;
- case ELF::STT_FUNC:
- case ELF::STT_OBJECT:
- case ELF::STT_NOTYPE:
- Result = symb->st_value;
- return object_error::success;
- default:
- Result = UnknownAddressOrSize;
- return object_error::success;
- }
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolSize(DataRefImpl Symb,
- uint64_t &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
- if (symb->st_size == 0)
- Result = UnknownAddressOrSize;
- Result = symb->st_size;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolNMTypeChar(DataRefImpl Symb,
- char &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
- const Elf_Shdr *Section = getSection(symb);
-
- char ret = '?';
-
- if (Section) {
- switch (Section->sh_type) {
- case ELF::SHT_PROGBITS:
- case ELF::SHT_DYNAMIC:
- switch (Section->sh_flags) {
- case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
- ret = 't'; break;
- case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
- ret = 'd'; break;
- case ELF::SHF_ALLOC:
- case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
- case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
- ret = 'r'; break;
- }
- break;
- case ELF::SHT_NOBITS: ret = 'b';
- }
- }
-
- switch (getSymbolTableIndex(symb)) {
- case ELF::SHN_UNDEF:
- if (ret == '?')
- ret = 'U';
- break;
- case ELF::SHN_ABS: ret = 'a'; break;
- case ELF::SHN_COMMON: ret = 'c'; break;
- }
-
- switch (symb->getBinding()) {
- case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
- case ELF::STB_WEAK:
- if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
- ret = 'w';
- else
- if (symb->getType() == ELF::STT_OBJECT)
- ret = 'V';
- else
- ret = 'W';
- }
-
- if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
- StringRef name;
- if (error_code ec = getSymbolName(Symb, name))
- return ec;
- Result = StringSwitch<char>(name)
- .StartsWith(".debug", 'N')
- .StartsWith(".note", 'n')
- .Default('?');
- return object_error::success;
- }
-
- Result = ret;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, 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_SECTION:
- Result = SymbolRef::ST_Debug;
- break;
- case ELF::STT_FILE:
- Result = SymbolRef::ST_File;
- break;
- case ELF::STT_FUNC:
- Result = SymbolRef::ST_Function;
- break;
- case ELF::STT_OBJECT:
- Result = SymbolRef::ST_Data;
- break;
- default:
- Result = SymbolRef::ST_Other;
- break;
- }
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::isSymbolGlobal(DataRefImpl Symb,
- bool &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
-
- Result = symb->getBinding() == ELF::STB_GLOBAL;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::isSymbolWeak(DataRefImpl Symb,
- bool &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
-
- Result = symb->getBinding() == ELF::STB_WEAK;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::isSymbolAbsolute(DataRefImpl Symb, bool &Res) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
- Res = symb->st_shndx == ELF::SHN_ABS;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolSection(DataRefImpl Symb,
- section_iterator &Res) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
- const Elf_Shdr *sec = getSection(symb);
- if (!sec)
- Res = end_sections();
- else {
- DataRefImpl Sec;
- Sec.p = reinterpret_cast<intptr_t>(sec);
- Res = section_iterator(SectionRef(Sec, this));
- }
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::isSymbolInternal(DataRefImpl Symb,
- bool &Result) const {
- validateSymbol(Symb);
- const Elf_Sym *symb = getSymbol(Symb);
-
- if ( symb->getType() == ELF::STT_FILE
- || symb->getType() == ELF::STT_SECTION)
- Result = true;
- Result = false;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSectionNext(DataRefImpl Sec, SectionRef &Result) const {
- const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
- sec += Header->e_shentsize;
- Sec.p = reinterpret_cast<intptr_t>(sec);
- Result = SectionRef(Sec, this);
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSectionName(DataRefImpl Sec,
- StringRef &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSectionAddress(DataRefImpl Sec,
- uint64_t &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- Result = sec->sh_addr;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSectionSize(DataRefImpl Sec,
- uint64_t &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- Result = sec->sh_size;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSectionContents(DataRefImpl Sec,
- StringRef &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- const char *start = (const char*)base() + sec->sh_offset;
- Result = StringRef(start, sec->sh_size);
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSectionAlignment(DataRefImpl Sec,
- uint64_t &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- Result = sec->sh_addralign;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::isSectionText(DataRefImpl Sec,
- bool &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- if (sec->sh_flags & ELF::SHF_EXECINSTR)
- Result = true;
- else
- Result = false;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::isSectionData(DataRefImpl Sec,
- bool &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
- && sec->sh_type == ELF::SHT_PROGBITS)
- Result = true;
- else
- Result = false;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::isSectionBSS(DataRefImpl Sec,
- bool &Result) const {
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
- && sec->sh_type == ELF::SHT_NOBITS)
- Result = true;
- else
- Result = false;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::sectionContainsSymbol(DataRefImpl Sec,
- DataRefImpl Symb,
- bool &Result) const {
- // FIXME: Unimplemented.
- Result = false;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-relocation_iterator ELFObjectFile<target_endianness, is64Bits>
- ::getSectionRelBegin(DataRefImpl Sec) const {
- DataRefImpl RelData;
- memset(&RelData, 0, sizeof(RelData));
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
- if (sec != 0 && ittr != SectionRelocMap.end()) {
- RelData.w.a = getSection(ittr->second[0])->sh_info;
- RelData.w.b = ittr->second[0];
- RelData.w.c = 0;
- }
- return relocation_iterator(RelocationRef(RelData, this));
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-relocation_iterator ELFObjectFile<target_endianness, is64Bits>
- ::getSectionRelEnd(DataRefImpl Sec) const {
- DataRefImpl RelData;
- memset(&RelData, 0, sizeof(RelData));
- const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
- typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
- if (sec != 0 && ittr != SectionRelocMap.end()) {
- // Get the index of the last relocation section for this section.
- std::size_t relocsecindex = ittr->second[ittr->second.size() - 1];
- const Elf_Shdr *relocsec = getSection(relocsecindex);
- RelData.w.a = relocsec->sh_info;
- RelData.w.b = relocsecindex;
- RelData.w.c = relocsec->sh_size / relocsec->sh_entsize;
+ 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]);
}
- return relocation_iterator(RelocationRef(RelData, this));
}
-// Relocations
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getRelocationNext(DataRefImpl Rel,
- RelocationRef &Result) const {
- ++Rel.w.c;
- const Elf_Shdr *relocsec = getSection(Rel.w.b);
- if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) {
- // We have reached the end of the relocations for this section. See if there
- // is another relocation section.
- typename RelocMap_t::mapped_type relocseclist =
- SectionRelocMap.lookup(getSection(Rel.w.a));
-
- // Do a binary search for the current reloc section index (which must be
- // present). Then get the next one.
- typename RelocMap_t::mapped_type::const_iterator loc =
- std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b);
- ++loc;
-
- // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel
- // to the end iterator.
- if (loc != relocseclist.end()) {
- Rel.w.b = *loc;
- Rel.w.a = 0;
- }
- }
- Result = RelocationRef(Rel, this);
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getRelocationSymbol(DataRefImpl Rel,
- SymbolRef &Result) const {
- uint32_t symbolIdx;
- const Elf_Shdr *sec = getSection(Rel.w.b);
- switch (sec->sh_type) {
- default :
- report_fatal_error("Invalid section type in Rel!");
- case ELF::SHT_REL : {
- symbolIdx = getRel(Rel)->getSymbol();
- break;
- }
- case ELF::SHT_RELA : {
- symbolIdx = getRela(Rel)->getSymbol();
- break;
- }
- }
- DataRefImpl SymbolData;
- IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link);
- if (it == SymbolTableSectionsIndexMap.end())
- report_fatal_error("Relocation symbol table not found!");
- SymbolData.d.a = symbolIdx;
- SymbolData.d.b = it->second;
- Result = SymbolRef(SymbolData, this);
- return object_error::success;
-}
+// Creates an in-memory object-file by default: createELFObjectFile(Buffer)
+ObjectFile *ObjectFile::createELFObjectFile(MemoryBuffer *Object) {
+ std::pair<unsigned char, unsigned char> Ident = getElfArchType(Object);
+ error_code ec;
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getRelocationAddress(DataRefImpl Rel,
- uint64_t &Result) const {
- uint64_t offset;
- const Elf_Shdr *sec = getSection(Rel.w.b);
- switch (sec->sh_type) {
- default :
- report_fatal_error("Invalid section type in Rel!");
- case ELF::SHT_REL : {
- offset = getRel(Rel)->r_offset;
- break;
- }
- case ELF::SHT_RELA : {
- offset = getRela(Rel)->r_offset;
- break;
- }
+ if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2LSB)
+ return new ELFObjectFile<support::little, false>(Object, ec);
+ else if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2MSB)
+ return new ELFObjectFile<support::big, false>(Object, ec);
+ else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2MSB)
+ return new ELFObjectFile<support::big, true>(Object, ec);
+ else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2LSB) {
+ ELFObjectFile<support::little, true> *result =
+ new ELFObjectFile<support::little, true>(Object, ec);
+ return result;
}
- Result = offset;
- return object_error::success;
+ report_fatal_error("Buffer is not an ELF object file!");
}
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getRelocationOffset(DataRefImpl Rel,
- uint64_t &Result) const {
- uint64_t offset;
- const Elf_Shdr *sec = getSection(Rel.w.b);
- switch (sec->sh_type) {
- default :
- report_fatal_error("Invalid section type in Rel!");
- case ELF::SHT_REL : {
- offset = getRel(Rel)->r_offset;
- break;
- }
- case ELF::SHT_RELA : {
- offset = getRela(Rel)->r_offset;
- break;
- }
- }
-
- Result = offset - sec->sh_addr;
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getRelocationType(DataRefImpl Rel,
- uint64_t &Result) const {
- const Elf_Shdr *sec = getSection(Rel.w.b);
- switch (sec->sh_type) {
- default :
- report_fatal_error("Invalid section type in Rel!");
- case ELF::SHT_REL : {
- Result = getRel(Rel)->getType();
- break;
- }
- case ELF::SHT_RELA : {
- Result = getRela(Rel)->getType();
- break;
- }
- }
- return object_error::success;
-}
-
-#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>
- ::getRelocationTypeName(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const {
- const Elf_Shdr *sec = getSection(Rel.w.b);
- uint8_t type;
- StringRef res;
- switch (sec->sh_type) {
- default :
- return object_error::parse_failed;
- case ELF::SHT_REL : {
- type = getRel(Rel)->getType();
- break;
- }
- case ELF::SHT_RELA : {
- type = getRela(Rel)->getType();
- break;
- }
- }
- switch (Header->e_machine) {
- case ELF::EM_X86_64:
- switch (type) {
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
- default:
- res = "Unknown";
- }
- break;
- case ELF::EM_386:
- switch (type) {
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
- LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
- default:
- res = "Unknown";
- }
- break;
- default:
- res = "Unknown";
- }
- Result.append(res.begin(), res.end());
- return object_error::success;
-}
-
-#undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getRelocationAdditionalInfo(DataRefImpl Rel,
- int64_t &Result) const {
- const Elf_Shdr *sec = getSection(Rel.w.b);
- switch (sec->sh_type) {
- default :
- report_fatal_error("Invalid section type in Rel!");
- case ELF::SHT_REL : {
- Result = 0;
- return object_error::success;
- }
- case ELF::SHT_RELA : {
- Result = getRela(Rel)->r_addend;
- return object_error::success;
- }
- }
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const {
- const Elf_Shdr *sec = getSection(Rel.w.b);
- uint8_t type;
- StringRef res;
- int64_t addend = 0;
- uint16_t symbol_index = 0;
- switch (sec->sh_type) {
- default :
- return object_error::parse_failed;
- 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 : {
- type = getRela(Rel)->getType();
- symbol_index = getRela(Rel)->getSymbol();
- addend = getRela(Rel)->r_addend;
- break;
- }
- }
- const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
- StringRef symname;
- if (error_code ec = getSymbolName(symb, symname))
- return ec;
- 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_PC32: {
- std::string fmtbuf;
- raw_string_ostream fmt(fmtbuf);
- fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
- fmt.flush();
- Result.append(fmtbuf.begin(), fmtbuf.end());
- }
- break;
- default:
- res = "Unknown";
- }
- break;
- default:
- res = "Unknown";
- }
- if (Result.empty())
- Result.append(res.begin(), res.end());
- return object_error::success;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-ELFObjectFile<target_endianness, is64Bits>::ELFObjectFile(MemoryBuffer *Object
- , error_code &ec)
- : ObjectFile(Binary::isELF, Object, ec)
- , SectionHeaderTable(0)
- , dot_shstrtab_sec(0)
- , dot_strtab_sec(0) {
- Header = reinterpret_cast<const Elf_Ehdr *>(base());
-
- if (Header->e_shoff == 0)
- return;
-
- SectionHeaderTable =
- reinterpret_cast<const Elf_Shdr *>(base() + Header->e_shoff);
- uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
- if (!( (const uint8_t *)SectionHeaderTable + SectionTableSize
- <= base() + Data->getBufferSize()))
- // FIXME: Proper error handling.
- report_fatal_error("Section table goes past end of file!");
-
-
- // To find the symbol tables we walk the section table to find SHT_SYMTAB.
- const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
- const Elf_Shdr* sh = reinterpret_cast<const Elf_Shdr*>(SectionHeaderTable);
- for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
- if (sh->sh_type == ELF::SHT_SYMTAB_SHNDX) {
- if (SymbolTableSectionHeaderIndex)
- // FIXME: Proper error handling.
- report_fatal_error("More than one .symtab_shndx!");
- SymbolTableSectionHeaderIndex = sh;
- }
- if (sh->sh_type == ELF::SHT_SYMTAB) {
- SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
- SymbolTableSections.push_back(sh);
- }
- if (sh->sh_type == ELF::SHT_REL || sh->sh_type == ELF::SHT_RELA) {
- SectionRelocMap[getSection(sh->sh_info)].push_back(i);
- }
- ++sh;
- }
-
- // Sort section relocation lists by index.
- for (typename RelocMap_t::iterator i = SectionRelocMap.begin(),
- e = SectionRelocMap.end(); i != e; ++i) {
- std::sort(i->second.begin(), i->second.end());
- }
-
- // Get string table sections.
- dot_shstrtab_sec = getSection(getStringTableIndex());
- if (dot_shstrtab_sec) {
- // Verify that the last byte in the string table in a null.
- if (((const char*)base() + dot_shstrtab_sec->sh_offset)
- [dot_shstrtab_sec->sh_size - 1] != 0)
- // FIXME: Proper error handling.
- report_fatal_error("String table must end with a null terminator!");
- }
-
- // Merge this into the above loop.
- for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
- *e = i + getNumSections() * Header->e_shentsize;
- i != e; i += Header->e_shentsize) {
- const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
- if (sh->sh_type == ELF::SHT_STRTAB) {
- StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
- if (SectionName == ".strtab") {
- if (dot_strtab_sec != 0)
- // FIXME: Proper error handling.
- report_fatal_error("Already found section named .strtab!");
- dot_strtab_sec = sh;
- const char *dot_strtab = (const char*)base() + sh->sh_offset;
- if (dot_strtab[sh->sh_size - 1] != 0)
- // FIXME: Proper error handling.
- report_fatal_error("String table must end with a null terminator!");
- }
- }
- }
-
- // Build symbol name side-mapping if there is one.
- if (SymbolTableSectionHeaderIndex) {
- const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
- SymbolTableSectionHeaderIndex->sh_offset);
- error_code ec;
- for (symbol_iterator si = begin_symbols(),
- se = end_symbols(); si != se; si.increment(ec)) {
- if (ec)
- report_fatal_error("Fewer extended symbol table entries than symbols!");
- if (*ShndxTable != ELF::SHN_UNDEF)
- ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
- ++ShndxTable;
- }
- }
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-symbol_iterator ELFObjectFile<target_endianness, is64Bits>
- ::begin_symbols() const {
- DataRefImpl SymbolData;
- memset(&SymbolData, 0, sizeof(SymbolData));
- if (SymbolTableSections.size() == 0) {
- SymbolData.d.a = std::numeric_limits<uint32_t>::max();
- SymbolData.d.b = std::numeric_limits<uint32_t>::max();
- } else {
- SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
- SymbolData.d.b = 0;
- }
- return symbol_iterator(SymbolRef(SymbolData, this));
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-symbol_iterator ELFObjectFile<target_endianness, is64Bits>
- ::end_symbols() const {
- DataRefImpl SymbolData;
- memset(&SymbolData, 0, sizeof(SymbolData));
- SymbolData.d.a = std::numeric_limits<uint32_t>::max();
- SymbolData.d.b = std::numeric_limits<uint32_t>::max();
- return symbol_iterator(SymbolRef(SymbolData, this));
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-section_iterator ELFObjectFile<target_endianness, is64Bits>
- ::begin_sections() const {
- DataRefImpl ret;
- memset(&ret, 0, sizeof(DataRefImpl));
- ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
- return section_iterator(SectionRef(ret, this));
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-section_iterator ELFObjectFile<target_endianness, is64Bits>
- ::end_sections() const {
- DataRefImpl ret;
- memset(&ret, 0, sizeof(DataRefImpl));
- ret.p = reinterpret_cast<intptr_t>(base()
- + Header->e_shoff
- + (Header->e_shentsize*getNumSections()));
- return section_iterator(SectionRef(ret, this));
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-uint8_t ELFObjectFile<target_endianness, is64Bits>::getBytesInAddress() const {
- return is64Bits ? 8 : 4;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-StringRef ELFObjectFile<target_endianness, is64Bits>
- ::getFileFormatName() const {
- switch(Header->e_ident[ELF::EI_CLASS]) {
- case ELF::ELFCLASS32:
- switch(Header->e_machine) {
- case ELF::EM_386:
- return "ELF32-i386";
- case ELF::EM_X86_64:
- return "ELF32-x86-64";
- case ELF::EM_ARM:
- return "ELF32-arm";
- default:
- return "ELF32-unknown";
- }
- case ELF::ELFCLASS64:
- switch(Header->e_machine) {
- case ELF::EM_386:
- return "ELF64-i386";
- case ELF::EM_X86_64:
- return "ELF64-x86-64";
- default:
- return "ELF64-unknown";
- }
- default:
- // FIXME: Proper error handling.
- report_fatal_error("Invalid ELFCLASS!");
- }
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-unsigned ELFObjectFile<target_endianness, is64Bits>::getArch() const {
- switch(Header->e_machine) {
- case ELF::EM_386:
- return Triple::x86;
- case ELF::EM_X86_64:
- return Triple::x86_64;
- case ELF::EM_ARM:
- return Triple::arm;
- default:
- return Triple::UnknownArch;
- }
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-uint64_t ELFObjectFile<target_endianness, is64Bits>::getNumSections() const {
- if (Header->e_shnum == ELF::SHN_UNDEF)
- return SectionHeaderTable->sh_size;
- return Header->e_shnum;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-uint64_t
-ELFObjectFile<target_endianness, is64Bits>::getStringTableIndex() const {
- if (Header->e_shnum == ELF::SHN_UNDEF) {
- if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
- return SectionHeaderTable->sh_link;
- if (Header->e_shstrndx >= getNumSections())
- return 0;
- }
- return Header->e_shstrndx;
-}
-
-
-template<support::endianness target_endianness, bool is64Bits>
-template<typename T>
-inline const T *
-ELFObjectFile<target_endianness, is64Bits>::getEntry(uint16_t Section,
- uint32_t Entry) const {
- return getEntry<T>(getSection(Section), Entry);
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-template<typename T>
-inline const T *
-ELFObjectFile<target_endianness, 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 {
- 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 {
- 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 {
- 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 {
- 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.
- report_fatal_error("Invalid symbol table section!");
- 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 {
- if (index == 0)
- return 0;
- if (!SectionHeaderTable || index >= getNumSections())
- // FIXME: Proper error handling.
- report_fatal_error("Invalid section index!");
-
- return reinterpret_cast<const Elf_Shdr *>(
- reinterpret_cast<const char *>(SectionHeaderTable)
- + (index * Header->e_shentsize));
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-const char *ELFObjectFile<target_endianness, 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>
- ::getString(const Elf_Shdr *section,
- ELF::Elf32_Word offset) const {
- assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
- if (offset >= section->sh_size)
- // FIXME: Proper error handling.
- report_fatal_error("Symbol name offset outside of string table!");
- return (const char *)base() + section->sh_offset + offset;
-}
-
-template<support::endianness target_endianness, bool is64Bits>
-error_code ELFObjectFile<target_endianness, is64Bits>
- ::getSymbolName(const Elf_Sym *symb,
- StringRef &Result) const {
- if (symb->st_name == 0) {
- const Elf_Shdr *section = getSection(symb);
- if (!section)
- Result = "";
- else
- Result = getString(dot_shstrtab_sec, section->sh_name);
- return object_error::success;
- }
-
- // Use the default symbol table name section.
- Result = getString(dot_strtab_sec, symb->st_name);
- return object_error::success;
-}
-
-// EI_CLASS, EI_DATA.
-static 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]);
-}
-
-namespace llvm {
-
- ObjectFile *ObjectFile::createELFObjectFile(MemoryBuffer *Object) {
- std::pair<unsigned char, unsigned char> Ident = getElfArchType(Object);
- error_code ec;
- if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2LSB)
- return new ELFObjectFile<support::little, false>(Object, ec);
- else if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2MSB)
- return new ELFObjectFile<support::big, false>(Object, ec);
- else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2LSB)
- return new ELFObjectFile<support::little, true>(Object, ec);
- else if (Ident.first == ELF::ELFCLASS64 && Ident.second == ELF::ELFDATA2MSB)
- return new ELFObjectFile<support::big, true>(Object, ec);
- // FIXME: Proper error handling.
- report_fatal_error("Not an ELF object file!");
- }
-
} // end namespace llvm
diff --git a/lib/Object/MachOObject.cpp b/lib/Object/MachOObject.cpp
index ff17683..b7e5cdc 100644
--- a/lib/Object/MachOObject.cpp
+++ b/lib/Object/MachOObject.cpp
@@ -382,7 +382,7 @@ void MachOObject::printHeader(raw_ostream &O) const {
O << "('num_load_commands', " << Header.NumLoadCommands << ")\n";
O << "('load_commands_size', " << Header.SizeOfLoadCommands << ")\n";
O << "('flag', " << Header.Flags << ")\n";
-
+
// Print extended header if 64-bit.
if (is64Bit())
O << "('reserved', " << Header64Ext.Reserved << ")\n";
@@ -392,6 +392,6 @@ void MachOObject::print(raw_ostream &O) const {
O << "Header:\n";
printHeader(O);
O << "Load Commands:\n";
-
+
O << "Buffer:\n";
}
diff --git a/lib/Object/MachOObjectFile.cpp b/lib/Object/MachOObjectFile.cpp
index 4fa621b..655c40a 100644
--- a/lib/Object/MachOObjectFile.cpp
+++ b/lib/Object/MachOObjectFile.cpp
@@ -262,61 +262,40 @@ error_code MachOObjectFile::getSymbolNMTypeChar(DataRefImpl DRI,
return object_error::success;
}
-error_code MachOObjectFile::isSymbolInternal(DataRefImpl DRI,
- bool &Result) const {
+error_code MachOObjectFile::getSymbolFlags(DataRefImpl DRI,
+ uint32_t &Result) const {
+ uint16_t MachOFlags;
+ uint8_t MachOType;
if (MachOObj->is64Bit()) {
InMemoryStruct<macho::Symbol64TableEntry> Entry;
getSymbol64TableEntry(DRI, Entry);
- Result = Entry->Flags & macho::STF_StabsEntryMask;
+ MachOFlags = Entry->Flags;
+ MachOType = Entry->Type;
} else {
InMemoryStruct<macho::SymbolTableEntry> Entry;
getSymbolTableEntry(DRI, Entry);
- Result = Entry->Flags & macho::STF_StabsEntryMask;
+ MachOFlags = Entry->Flags;
+ MachOType = Entry->Type;
}
- return object_error::success;
-}
-error_code MachOObjectFile::isSymbolGlobal(DataRefImpl Symb, bool &Res) const {
+ // TODO: Correctly set SF_ThreadLocal and SF_Common.
+ Result = SymbolRef::SF_None;
- if (MachOObj->is64Bit()) {
- InMemoryStruct<macho::Symbol64TableEntry> Entry;
- getSymbol64TableEntry(Symb, Entry);
- Res = Entry->Type & MachO::NlistMaskExternal;
- } else {
- InMemoryStruct<macho::SymbolTableEntry> Entry;
- getSymbolTableEntry(Symb, Entry);
- Res = Entry->Type & MachO::NlistMaskExternal;
- }
- return object_error::success;
-}
+ if ((MachOType & MachO::NlistMaskType) == MachO::NListTypeUndefined)
+ Result |= SymbolRef::SF_Undefined;
-error_code MachOObjectFile::isSymbolWeak(DataRefImpl Symb, bool &Res) const {
+ if (MachOFlags & macho::STF_StabsEntryMask)
+ Result |= SymbolRef::SF_FormatSpecific;
- if (MachOObj->is64Bit()) {
- InMemoryStruct<macho::Symbol64TableEntry> Entry;
- getSymbol64TableEntry(Symb, Entry);
- Res = Entry->Flags & (MachO::NListDescWeakRef | MachO::NListDescWeakDef);
- } else {
- InMemoryStruct<macho::SymbolTableEntry> Entry;
- getSymbolTableEntry(Symb, Entry);
- Res = Entry->Flags & (MachO::NListDescWeakRef | MachO::NListDescWeakDef);
- }
- return object_error::success;
-}
+ if (MachOType & MachO::NlistMaskExternal)
+ Result |= SymbolRef::SF_Global;
-error_code MachOObjectFile::isSymbolAbsolute(DataRefImpl Symb, bool &Res) const{
- uint8_t n_type;
- if (MachOObj->is64Bit()) {
- InMemoryStruct<macho::Symbol64TableEntry> Entry;
- getSymbol64TableEntry(Symb, Entry);
- n_type = Entry->Type;
- } else {
- InMemoryStruct<macho::SymbolTableEntry> Entry;
- getSymbolTableEntry(Symb, Entry);
- n_type = Entry->Type;
- }
+ if (MachOFlags & (MachO::NListDescWeakRef | MachO::NListDescWeakDef))
+ Result |= SymbolRef::SF_Weak;
+
+ if ((MachOType & MachO::NlistMaskType) == MachO::NListTypeAbsolute)
+ Result |= SymbolRef::SF_Absolute;
- Res = (n_type & MachO::NlistMaskType) == MachO::NListTypeAbsolute;
return object_error::success;
}
@@ -363,7 +342,7 @@ error_code MachOObjectFile::getSymbolType(DataRefImpl Symb,
switch (n_type & MachO::NlistMaskType) {
case MachO::NListTypeUndefined :
- Res = SymbolRef::ST_External;
+ Res = SymbolRef::ST_Unknown;
break;
case MachO::NListTypeSection :
Res = SymbolRef::ST_Function;
@@ -388,6 +367,30 @@ symbol_iterator MachOObjectFile::end_symbols() const {
return symbol_iterator(SymbolRef(DRI, this));
}
+symbol_iterator MachOObjectFile::begin_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in MachOObjectFile");
+}
+
+symbol_iterator MachOObjectFile::end_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in MachOObjectFile");
+}
+
+library_iterator MachOObjectFile::begin_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
+}
+
+library_iterator MachOObjectFile::end_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
+}
+
+StringRef MachOObjectFile::getLoadName() const {
+ // TODO: Implement
+ report_fatal_error("get_load_name() unimplemented in MachOObjectFile");
+}
/*===-- Sections ----------------------------------------------------------===*/
@@ -571,7 +574,7 @@ error_code MachOObjectFile::sectionContainsSymbol(DataRefImpl Sec,
bool &Result) const {
SymbolRef::Type ST;
getSymbolType(Symb, ST);
- if (ST == SymbolRef::ST_External) {
+ if (ST == SymbolRef::ST_Unknown) {
Result = false;
return object_error::success;
}
@@ -1187,6 +1190,17 @@ error_code MachOObjectFile::getRelocationHidden(DataRefImpl Rel,
return object_error::success;
}
+error_code MachOObjectFile::getLibraryNext(DataRefImpl LibData,
+ LibraryRef &Res) const {
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
+}
+
+error_code MachOObjectFile::getLibraryPath(DataRefImpl LibData,
+ StringRef &Res) const {
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
+}
+
+
/*===-- Miscellaneous -----------------------------------------------------===*/
uint8_t MachOObjectFile::getBytesInAddress() const {
diff --git a/lib/Object/ObjectFile.cpp b/lib/Object/ObjectFile.cpp
index 69d8ed0..b14df9a 100644
--- a/lib/Object/ObjectFile.cpp
+++ b/lib/Object/ObjectFile.cpp
@@ -21,6 +21,8 @@
using namespace llvm;
using namespace object;
+void ObjectFile::anchor() { }
+
ObjectFile::ObjectFile(unsigned int Type, MemoryBuffer *source, error_code &ec)
: Binary(Type, source) {
}
@@ -56,7 +58,7 @@ ObjectFile *ObjectFile::createObjectFile(MemoryBuffer *Object) {
ObjectFile *ObjectFile::createObjectFile(StringRef ObjectPath) {
OwningPtr<MemoryBuffer> File;
- if (error_code ec = MemoryBuffer::getFile(ObjectPath, File))
+ if (MemoryBuffer::getFile(ObjectPath, File))
return NULL;
return createObjectFile(File.take());
}
generated by cgit v1.1 at 2025-08-16 18:01:13 +0000