//===----------------------------------------------------------------------===//
#include "llvm-readobj.h"
+#include "ARMAttributeParser.h"
+#include "ARMEHABIPrinter.h"
#include "Error.h"
#include "ObjDumper.h"
#include "StreamWriter.h"
-
+#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.h"
-#include "llvm/Object/ELF.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/Object/ELFObjectFile.h"
+#include "llvm/Support/ARMBuildAttributes.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/MipsABIFlags.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
using namespace llvm::object;
using namespace ELF;
-
#define LLVM_READOBJ_ENUM_CASE(ns, enum) \
case ns::enum: return #enum;
template<typename ELFT>
class ELFDumper : public ObjDumper {
public:
- ELFDumper(const ELFObjectFile<ELFT> *Obj, StreamWriter& Writer)
- : ObjDumper(Writer)
- , Obj(Obj) { }
+ ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer)
+ : ObjDumper(Writer), Obj(Obj) {}
- virtual void printFileHeaders() LLVM_OVERRIDE;
- virtual void printSections() LLVM_OVERRIDE;
- virtual void printRelocations() LLVM_OVERRIDE;
- virtual void printSymbols() LLVM_OVERRIDE;
- virtual void printDynamicSymbols() LLVM_OVERRIDE;
- virtual void printUnwindInfo() LLVM_OVERRIDE;
+ void printFileHeaders() override;
+ void printSections() override;
+ void printRelocations() override;
+ void printSymbols() override;
+ void printDynamicSymbols() override;
+ void printUnwindInfo() override;
- virtual void printDynamicTable() LLVM_OVERRIDE;
- virtual void printNeededLibraries() LLVM_OVERRIDE;
+ void printDynamicTable() override;
+ void printNeededLibraries() override;
+ void printProgramHeaders() override;
+
+ void printAttributes() override;
+ void printMipsPLTGOT() override;
+ void printMipsABIFlags() override;
private:
- typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
- typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
+ typedef ELFFile<ELFT> ELFO;
+ typedef typename ELFO::Elf_Shdr Elf_Shdr;
+ typedef typename ELFO::Elf_Sym Elf_Sym;
- void printSymbol(symbol_iterator SymI, bool IsDynamic = false);
+ void printSymbol(typename ELFO::Elf_Sym_Iter Symbol);
- void printRelocation(section_iterator SecI, relocation_iterator RelI);
+ void printRelocations(const Elf_Shdr *Sec);
+ void printRelocation(const Elf_Shdr *Sec, typename ELFO::Elf_Rela Rel);
- const ELFObjectFile<ELFT> *Obj;
+ const ELFO *Obj;
};
-} // namespace
+template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) {
+ if (!Val) {
+ error(Val.getError());
+ return Default;
+ }
+ return *Val;
+}
+} // namespace
namespace llvm {
-error_code createELFDumper(const object::ObjectFile *Obj,
- StreamWriter& Writer,
- OwningPtr<ObjDumper> &Result) {
- typedef ELFType<support::little, 4, false> Little32ELF;
- typedef ELFType<support::big, 4, false> Big32ELF;
- typedef ELFType<support::little, 4, true > Little64ELF;
- typedef ELFType<support::big, 8, true > Big64ELF;
-
- typedef ELFObjectFile<Little32ELF> LittleELF32Obj;
- typedef ELFObjectFile<Big32ELF > BigELF32Obj;
- typedef ELFObjectFile<Little64ELF> LittleELF64Obj;
- typedef ELFObjectFile<Big64ELF > BigELF64Obj;
+template <class ELFT>
+static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
+ StreamWriter &Writer,
+ std::unique_ptr<ObjDumper> &Result) {
+ Result.reset(new ELFDumper<ELFT>(Obj, Writer));
+ return readobj_error::success;
+}
+std::error_code createELFDumper(const object::ObjectFile *Obj,
+ StreamWriter &Writer,
+ std::unique_ptr<ObjDumper> &Result) {
// Little-endian 32-bit
- if (const LittleELF32Obj *ELFObj = dyn_cast<LittleELF32Obj>(Obj)) {
- Result.reset(new ELFDumper<Little32ELF>(ELFObj, Writer));
- return readobj_error::success;
- }
+ if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
+ return createELFDumper(ELFObj->getELFFile(), Writer, Result);
// Big-endian 32-bit
- if (const BigELF32Obj *ELFObj = dyn_cast<BigELF32Obj>(Obj)) {
- Result.reset(new ELFDumper<Big32ELF>(ELFObj, Writer));
- return readobj_error::success;
- }
+ if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
+ return createELFDumper(ELFObj->getELFFile(), Writer, Result);
// Little-endian 64-bit
- if (const LittleELF64Obj *ELFObj = dyn_cast<LittleELF64Obj>(Obj)) {
- Result.reset(new ELFDumper<Little64ELF>(ELFObj, Writer));
- return readobj_error::success;
- }
+ if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
+ return createELFDumper(ELFObj->getELFFile(), Writer, Result);
// Big-endian 64-bit
- if (const BigELF64Obj *ELFObj = dyn_cast<BigELF64Obj>(Obj)) {
- Result.reset(new ELFDumper<Big64ELF>(ELFObj, Writer));
- return readobj_error::success;
- }
+ if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
+ return createELFDumper(ELFObj->getELFFile(), Writer, Result);
return readobj_error::unsupported_obj_file_format;
}
} // namespace llvm
+template <typename ELFO>
+static std::string getFullSymbolName(const ELFO &Obj,
+ typename ELFO::Elf_Sym_Iter Symbol) {
+ StringRef SymbolName = errorOrDefault(Obj.getSymbolName(Symbol));
+ if (!Symbol.isDynamic())
+ return SymbolName;
+
+ std::string FullSymbolName(SymbolName);
+
+ bool IsDefault;
+ ErrorOr<StringRef> Version =
+ Obj.getSymbolVersion(nullptr, &*Symbol, IsDefault);
+ if (Version) {
+ FullSymbolName += (IsDefault ? "@@" : "@");
+ FullSymbolName += *Version;
+ } else
+ error(Version.getError());
+ return FullSymbolName;
+}
+
+template <typename ELFO>
+static void
+getSectionNameIndex(const ELFO &Obj, typename ELFO::Elf_Sym_Iter Symbol,
+ StringRef &SectionName, unsigned &SectionIndex) {
+ SectionIndex = Symbol->st_shndx;
+ if (Symbol->isUndefined())
+ SectionName = "Undefined";
+ else if (Symbol->isProcessorSpecific())
+ SectionName = "Processor Specific";
+ else if (Symbol->isOSSpecific())
+ SectionName = "Operating System Specific";
+ else if (Symbol->isReserved())
+ SectionName = "Reserved";
+ else if (Symbol->isAbsolute())
+ SectionName = "Absolute";
+ else if (Symbol->isCommon())
+ SectionName = "Common";
+ else {
+ if (SectionIndex == SHN_XINDEX)
+ SectionIndex = Obj.getSymbolTableIndex(&*Symbol);
+ assert(SectionIndex != SHN_XINDEX &&
+ "getSymbolTableIndex should handle this");
+ const typename ELFO::Elf_Shdr *Sec = Obj.getSection(SectionIndex);
+ SectionName = errorOrDefault(Obj.getSectionName(Sec));
+ }
+}
+
+template <class ELFT>
+static const typename ELFFile<ELFT>::Elf_Shdr *
+findSectionByAddress(const ELFFile<ELFT> *Obj, uint64_t Addr) {
+ for (const auto &Shdr : Obj->sections())
+ if (Shdr.sh_addr == Addr)
+ return &Shdr;
+ return nullptr;
+}
+
+template <class ELFT>
+static const typename ELFFile<ELFT>::Elf_Shdr *
+findSectionByName(const ELFFile<ELFT> &Obj, StringRef Name) {
+ for (const auto &Shdr : Obj.sections()) {
+ if (Name == errorOrDefault(Obj.getSectionName(&Shdr)))
+ return &Shdr;
+ }
+ return nullptr;
+}
static const EnumEntry<unsigned> ElfClass[] = {
{ "None", ELF::ELFCLASSNONE },
{ "NSK", ELF::ELFOSABI_NSK },
{ "AROS", ELF::ELFOSABI_AROS },
{ "FenixOS", ELF::ELFOSABI_FENIXOS },
+ { "CloudABI", ELF::ELFOSABI_CLOUDABI },
{ "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI },
{ "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX },
{ "ARM", ELF::ELFOSABI_ARM },
LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8 ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64 ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO ),
- LLVM_READOBJ_ENUM_ENT(ELF, EM_MICROBLAZE ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78 ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5 ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR ),
- LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX ),
- LLVM_READOBJ_ENUM_ENT(ELF, EM_MBLAZE )
+ LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX )
};
static const EnumEntry<unsigned> ElfSymbolBindings[] = {
- { "Local", ELF::STB_LOCAL },
- { "Global", ELF::STB_GLOBAL },
- { "Weak", ELF::STB_WEAK }
+ { "Local", ELF::STB_LOCAL },
+ { "Global", ELF::STB_GLOBAL },
+ { "Weak", ELF::STB_WEAK },
+ { "Unique", ELF::STB_GNU_UNIQUE }
};
static const EnumEntry<unsigned> ElfSymbolTypes[] = {
static const char *getElfSectionType(unsigned Arch, unsigned Type) {
switch (Arch) {
- case Triple::arm:
+ case ELF::EM_ARM:
switch (Type) {
LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
}
- case Triple::hexagon:
- switch (Type) {
- LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED);
- }
- case Triple::x86_64:
- switch (Type) {
- LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND);
- }
- case Triple::mips:
- case Triple::mipsel:
+ case ELF::EM_HEXAGON:
+ switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
+ case ELF::EM_X86_64:
+ switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
+ case ELF::EM_MIPS:
+ case ELF::EM_MIPS_RS3_LE:
switch (Type) {
LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
+ LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_ABIFLAGS);
}
}
static const EnumEntry<unsigned> ElfSectionFlags[] = {
LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE ),
LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC ),
+ LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXCLUDE ),
LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR ),
LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE ),
LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS ),
LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP )
};
+static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
+ // Check potentially overlapped processor-specific
+ // program header type.
+ switch (Arch) {
+ case ELF::EM_ARM:
+ switch (Type) {
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
+ }
+ case ELF::EM_MIPS:
+ case ELF::EM_MIPS_RS3_LE:
+ switch (Type) {
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
+ }
+ }
+
+ switch (Type) {
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
+
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
+
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
+ default: return "";
+ }
+}
+
+static const EnumEntry<unsigned> ElfSegmentFlags[] = {
+ LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
+ LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
+ LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
+};
+
+static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
+ LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
+};
template<class ELFT>
void ELFDumper<ELFT>::printFileHeaders() {
- error_code EC;
- typedef ELFObjectFile<ELFT> ELFO;
-
- const typename ELFO::Elf_Ehdr *Header = Obj->getElfHeader();
+ const typename ELFO::Elf_Ehdr *Header = Obj->getHeader();
{
DictScope D(W, "ElfHeader");
W.printHex ("Entry", Header->e_entry);
W.printHex ("ProgramHeaderOffset", Header->e_phoff);
W.printHex ("SectionHeaderOffset", Header->e_shoff);
- W.printFlags ("Flags", Header->e_flags);
+ if (Header->e_machine == EM_MIPS)
+ W.printFlags("Flags", Header->e_flags, makeArrayRef(ElfHeaderMipsFlags),
+ unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
+ unsigned(ELF::EF_MIPS_MACH));
+ else
+ W.printFlags("Flags", Header->e_flags);
W.printNumber("HeaderSize", Header->e_ehsize);
W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize);
W.printNumber("ProgramHeaderCount", Header->e_phnum);
ListScope SectionsD(W, "Sections");
int SectionIndex = -1;
- error_code EC;
- for (section_iterator SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; SecI.increment(EC)) {
- if (error(EC)) break;
-
+ for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
+ SecE = Obj->end_sections();
+ SecI != SecE; ++SecI) {
++SectionIndex;
- const Elf_Shdr *Section = Obj->getElfSection(SecI);
- StringRef Name;
- if (error(SecI->getName(Name)))
- Name = "";
+ const Elf_Shdr *Section = &*SecI;
+ StringRef Name = errorOrDefault(Obj->getSectionName(Section));
DictScope SectionD(W, "Section");
W.printNumber("Index", SectionIndex);
W.printNumber("Name", Name, Section->sh_name);
- W.printHex ("Type", getElfSectionType(Obj->getArch(), Section->sh_type),
- Section->sh_type);
+ W.printHex("Type",
+ getElfSectionType(Obj->getHeader()->e_machine, Section->sh_type),
+ Section->sh_type);
W.printFlags ("Flags", Section->sh_flags, makeArrayRef(ElfSectionFlags));
W.printHex ("Address", Section->sh_addr);
W.printHex ("Offset", Section->sh_offset);
if (opts::SectionRelocations) {
ListScope D(W, "Relocations");
- for (relocation_iterator RelI = SecI->begin_relocations(),
- RelE = SecI->end_relocations();
- RelI != RelE; RelI.increment(EC)) {
- if (error(EC)) break;
-
- printRelocation(SecI, RelI);
- }
+ printRelocations(Section);
}
if (opts::SectionSymbols) {
ListScope D(W, "Symbols");
- for (symbol_iterator SymI = Obj->begin_symbols(),
- SymE = Obj->end_symbols();
- SymI != SymE; SymI.increment(EC)) {
- if (error(EC)) break;
-
- bool Contained = false;
- if (SecI->containsSymbol(*SymI, Contained) || !Contained)
- continue;
-
- printSymbol(SymI);
+ for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
+ SymE = Obj->end_symbols();
+ SymI != SymE; ++SymI) {
+ if (Obj->getSection(&*SymI) == Section)
+ printSymbol(SymI);
}
}
- if (opts::SectionData) {
- StringRef Data;
- if (error(SecI->getContents(Data))) break;
-
- W.printBinaryBlock("SectionData", Data);
+ if (opts::SectionData && Section->sh_type != ELF::SHT_NOBITS) {
+ ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(Section));
+ W.printBinaryBlock("SectionData",
+ StringRef((const char *)Data.data(), Data.size()));
}
}
}
void ELFDumper<ELFT>::printRelocations() {
ListScope D(W, "Relocations");
- error_code EC;
int SectionNumber = -1;
- for (section_iterator SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; SecI.increment(EC)) {
- if (error(EC)) break;
-
+ for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
+ SecE = Obj->end_sections();
+ SecI != SecE; ++SecI) {
++SectionNumber;
- StringRef Name;
- if (error(SecI->getName(Name)))
+
+ if (SecI->sh_type != ELF::SHT_REL && SecI->sh_type != ELF::SHT_RELA)
continue;
- bool PrintedGroup = false;
- for (relocation_iterator RelI = SecI->begin_relocations(),
- RelE = SecI->end_relocations();
- RelI != RelE; RelI.increment(EC)) {
- if (error(EC)) break;
+ StringRef Name = errorOrDefault(Obj->getSectionName(&*SecI));
- if (!PrintedGroup) {
- W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
- W.indent();
- PrintedGroup = true;
- }
+ W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
+ W.indent();
- printRelocation(SecI, RelI);
- }
+ printRelocations(&*SecI);
- if (PrintedGroup) {
- W.unindent();
- W.startLine() << "}\n";
+ W.unindent();
+ W.startLine() << "}\n";
+ }
+}
+
+template <class ELFT>
+void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) {
+ switch (Sec->sh_type) {
+ case ELF::SHT_REL:
+ for (typename ELFO::Elf_Rel_Iter RI = Obj->begin_rel(Sec),
+ RE = Obj->end_rel(Sec);
+ RI != RE; ++RI) {
+ typename ELFO::Elf_Rela Rela;
+ Rela.r_offset = RI->r_offset;
+ Rela.r_info = RI->r_info;
+ Rela.r_addend = 0;
+ printRelocation(Sec, Rela);
+ }
+ break;
+ case ELF::SHT_RELA:
+ for (typename ELFO::Elf_Rela_Iter RI = Obj->begin_rela(Sec),
+ RE = Obj->end_rela(Sec);
+ RI != RE; ++RI) {
+ printRelocation(Sec, *RI);
}
+ break;
}
}
-template<class ELFT>
-void ELFDumper<ELFT>::printRelocation(section_iterator Sec,
- relocation_iterator RelI) {
- uint64_t Offset;
+template <class ELFT>
+void ELFDumper<ELFT>::printRelocation(const Elf_Shdr *Sec,
+ typename ELFO::Elf_Rela Rel) {
SmallString<32> RelocName;
- int64_t Info;
- StringRef SymbolName;
- SymbolRef Symbol;
- if (error(RelI->getOffset(Offset))) return;
- if (error(RelI->getTypeName(RelocName))) return;
- if (error(RelI->getAdditionalInfo(Info))) return;
- if (error(RelI->getSymbol(Symbol))) return;
- if (error(Symbol.getName(SymbolName))) return;
-
- raw_ostream& OS = W.startLine();
- OS << W.hex(Offset)
- << " " << RelocName
- << " " << (SymbolName.size() > 0 ? SymbolName : "-")
- << " " << W.hex(Info)
- << "\n";
+ Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
+ StringRef TargetName;
+ std::pair<const Elf_Shdr *, const Elf_Sym *> Sym =
+ Obj->getRelocationSymbol(Sec, &Rel);
+ if (Sym.second && Sym.second->getType() == ELF::STT_SECTION) {
+ const Elf_Shdr *Sec = Obj->getSection(Sym.second);
+ ErrorOr<StringRef> SecName = Obj->getSectionName(Sec);
+ if (SecName)
+ TargetName = SecName.get();
+ } else if (Sym.first) {
+ TargetName = errorOrDefault(Obj->getSymbolName(Sym.first, Sym.second));
+ }
+
+ if (opts::ExpandRelocs) {
+ DictScope Group(W, "Relocation");
+ W.printHex("Offset", Rel.r_offset);
+ W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
+ W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-",
+ Rel.getSymbol(Obj->isMips64EL()));
+ W.printHex("Addend", Rel.r_addend);
+ } else {
+ raw_ostream& OS = W.startLine();
+ OS << W.hex(Rel.r_offset) << " " << RelocName << " "
+ << (TargetName.size() > 0 ? TargetName : "-") << " "
+ << W.hex(Rel.r_addend) << "\n";
+ }
}
template<class ELFT>
void ELFDumper<ELFT>::printSymbols() {
ListScope Group(W, "Symbols");
-
- error_code EC;
- for (symbol_iterator SymI = Obj->begin_symbols(), SymE = Obj->end_symbols();
- SymI != SymE; SymI.increment(EC)) {
- if (error(EC)) break;
-
+ for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
+ SymE = Obj->end_symbols();
+ SymI != SymE; ++SymI) {
printSymbol(SymI);
}
}
void ELFDumper<ELFT>::printDynamicSymbols() {
ListScope Group(W, "DynamicSymbols");
- error_code EC;
- for (symbol_iterator SymI = Obj->begin_dynamic_symbols(),
- SymE = Obj->end_dynamic_symbols();
- SymI != SymE; SymI.increment(EC)) {
- if (error(EC)) break;
-
- printSymbol(SymI, true);
+ for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_dynamic_symbols(),
+ SymE = Obj->end_dynamic_symbols();
+ SymI != SymE; ++SymI) {
+ printSymbol(SymI);
}
}
-template<class ELFT>
-void ELFDumper<ELFT>::printSymbol(symbol_iterator SymI, bool IsDynamic) {
- error_code EC;
-
- const Elf_Sym *Symbol = Obj->getElfSymbol(SymI);
- const Elf_Shdr *Section = Obj->getSection(Symbol);
-
- StringRef SymbolName;
- if (SymI->getName(SymbolName))
- SymbolName = "";
-
+template <class ELFT>
+void ELFDumper<ELFT>::printSymbol(typename ELFO::Elf_Sym_Iter Symbol) {
+ unsigned SectionIndex = 0;
StringRef SectionName;
- if (Section && Obj->getSectionName(Section, SectionName))
- SectionName = "";
-
- std::string FullSymbolName(SymbolName);
- if (IsDynamic) {
- StringRef Version;
- bool IsDefault;
- if (error(Obj->getSymbolVersion(*SymI, Version, IsDefault)))
- return;
- if (!Version.empty()) {
- FullSymbolName += (IsDefault ? "@@" : "@");
- FullSymbolName += Version;
- }
- }
+ getSectionNameIndex(*Obj, Symbol, SectionName, SectionIndex);
+ std::string FullSymbolName = getFullSymbolName(*Obj, Symbol);
DictScope D(W, "Symbol");
W.printNumber("Name", FullSymbolName, Symbol->st_name);
makeArrayRef(ElfSymbolBindings));
W.printEnum ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
W.printNumber("Other", Symbol->st_other);
- W.printHex ("Section", SectionName, Symbol->st_shndx);
+ W.printHex("Section", SectionName, SectionIndex);
}
#define LLVM_READOBJ_TYPE_CASE(name) \
LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
LLVM_READOBJ_TYPE_CASE(FLAGS);
+ LLVM_READOBJ_TYPE_CASE(FLAGS_1);
LLVM_READOBJ_TYPE_CASE(HASH);
LLVM_READOBJ_TYPE_CASE(INIT);
LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
LLVM_READOBJ_TYPE_CASE(SYMENT);
LLVM_READOBJ_TYPE_CASE(SYMTAB);
LLVM_READOBJ_TYPE_CASE(TEXTREL);
+ LLVM_READOBJ_TYPE_CASE(VERNEED);
+ LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
+ LLVM_READOBJ_TYPE_CASE(VERSYM);
+ LLVM_READOBJ_TYPE_CASE(RELCOUNT);
+ LLVM_READOBJ_TYPE_CASE(GNU_HASH);
+ LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
+ LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
+ LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
+ LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
+ LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
+ LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
+ LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
+ LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
+ LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
+ LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
default: return "unknown";
}
}
#undef LLVM_READOBJ_TYPE_CASE
-template<class ELFT>
-static void printValue(const ELFObjectFile<ELFT> *O, uint64_t Type,
- uint64_t Value, bool Is64, raw_ostream &OS) {
+#define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
+ { #enum, prefix##_##enum }
+
+static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
+ LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
+ LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
+ LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
+ LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
+ LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
+};
+
+static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
+ LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
+};
+
+static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
+ LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
+ LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
+};
+
+#undef LLVM_READOBJ_DT_FLAG_ENT
+
+template <typename T, typename TFlag>
+void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
+ typedef EnumEntry<TFlag> FlagEntry;
+ typedef SmallVector<FlagEntry, 10> FlagVector;
+ FlagVector SetFlags;
+
+ for (const auto &Flag : Flags) {
+ if (Flag.Value == 0)
+ continue;
+
+ if ((Value & Flag.Value) == Flag.Value)
+ SetFlags.push_back(Flag);
+ }
+
+ for (const auto &Flag : SetFlags) {
+ OS << Flag.Name << " ";
+ }
+}
+
+template <class ELFT>
+static void printValue(const ELFFile<ELFT> *O, uint64_t Type, uint64_t Value,
+ bool Is64, raw_ostream &OS) {
switch (Type) {
case DT_PLTREL:
if (Value == DT_REL) {
case DT_FINI_ARRAY:
case DT_PREINIT_ARRAY:
case DT_DEBUG:
+ case DT_VERNEED:
+ case DT_VERSYM:
+ case DT_GNU_HASH:
case DT_NULL:
+ case DT_MIPS_BASE_ADDRESS:
+ case DT_MIPS_GOTSYM:
+ case DT_MIPS_RLD_MAP:
+ case DT_MIPS_PLTGOT:
+ case DT_MIPS_OPTIONS:
OS << format("0x%" PRIX64, Value);
break;
+ case DT_RELCOUNT:
+ case DT_VERNEEDNUM:
+ case DT_MIPS_RLD_VERSION:
+ case DT_MIPS_LOCAL_GOTNO:
+ case DT_MIPS_SYMTABNO:
+ case DT_MIPS_UNREFEXTNO:
+ OS << Value;
+ break;
case DT_PLTRELSZ:
case DT_RELASZ:
case DT_RELAENT:
OS << Value << " (bytes)";
break;
case DT_NEEDED:
- OS << "SharedLibrary ("
- << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
+ OS << "SharedLibrary (" << O->getDynamicString(Value) << ")";
break;
case DT_SONAME:
- OS << "LibrarySoname ("
- << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
+ OS << "LibrarySoname (" << O->getDynamicString(Value) << ")";
+ break;
+ case DT_RPATH:
+ case DT_RUNPATH:
+ OS << O->getDynamicString(Value);
+ break;
+ case DT_MIPS_FLAGS:
+ printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
+ break;
+ case DT_FLAGS:
+ printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
+ break;
+ case DT_FLAGS_1:
+ printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
break;
}
}
W.startLine() << "UnwindInfo not implemented.\n";
}
+namespace {
+template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
+ const unsigned Machine = Obj->getHeader()->e_machine;
+ if (Machine == EM_ARM) {
+ ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(W, Obj);
+ return Ctx.PrintUnwindInformation();
+ }
+ W.startLine() << "UnwindInfo not implemented.\n";
+}
+}
+
template<class ELFT>
void ELFDumper<ELFT>::printDynamicTable() {
- typedef ELFObjectFile<ELFT> ELFO;
- typedef typename ELFO::Elf_Dyn_iterator EDI;
- EDI Start = Obj->begin_dynamic_table(),
- End = Obj->end_dynamic_table(true);
+ auto DynTable = Obj->dynamic_table(true);
- if (Start == End)
+ ptrdiff_t Total = std::distance(DynTable.begin(), DynTable.end());
+ if (Total == 0)
return;
- ptrdiff_t Total = std::distance(Start, End);
raw_ostream &OS = W.getOStream();
W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
- bool Is64 = Obj->getBytesInAddress() == 8;
+ bool Is64 = ELFT::Is64Bits;
W.startLine()
<< " Tag" << (Is64 ? " " : " ") << "Type"
<< " " << "Name/Value\n";
- for (; Start != End; ++Start) {
+ for (const auto &Entry : DynTable) {
W.startLine()
<< " "
- << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Start->getTag())
- << " " << format("%-21s", getTypeString(Start->getTag()));
- printValue(Obj, Start->getTag(), Start->getVal(), Is64, OS);
+ << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Entry.getTag())
+ << " " << format("%-21s", getTypeString(Entry.getTag()));
+ printValue(Obj, Entry.getTag(), Entry.getVal(), Is64, OS);
OS << "\n";
}
W.startLine() << "]\n";
}
-static bool compareLibraryName(const LibraryRef &L, const LibraryRef &R) {
- StringRef LPath, RPath;
- L.getPath(LPath);
- R.getPath(RPath);
- return LPath < RPath;
-}
-
template<class ELFT>
void ELFDumper<ELFT>::printNeededLibraries() {
ListScope D(W, "NeededLibraries");
- error_code EC;
-
- typedef std::vector<LibraryRef> LibsTy;
+ typedef std::vector<StringRef> LibsTy;
LibsTy Libs;
- for (library_iterator I = Obj->begin_libraries_needed(),
- E = Obj->end_libraries_needed();
- I != E; I.increment(EC)) {
- if (EC)
- report_fatal_error("Needed libraries iteration failed");
+ for (const auto &Entry : Obj->dynamic_table())
+ if (Entry.d_tag == ELF::DT_NEEDED)
+ Libs.push_back(Obj->getDynamicString(Entry.d_un.d_val));
+
+ std::stable_sort(Libs.begin(), Libs.end());
+
+ for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end(); I != E; ++I) {
+ outs() << " " << *I << "\n";
+ }
+}
- Libs.push_back(*I);
+template<class ELFT>
+void ELFDumper<ELFT>::printProgramHeaders() {
+ ListScope L(W, "ProgramHeaders");
+
+ for (typename ELFO::Elf_Phdr_Iter PI = Obj->begin_program_headers(),
+ PE = Obj->end_program_headers();
+ PI != PE; ++PI) {
+ DictScope P(W, "ProgramHeader");
+ W.printHex ("Type",
+ getElfSegmentType(Obj->getHeader()->e_machine, PI->p_type),
+ PI->p_type);
+ W.printHex ("Offset", PI->p_offset);
+ W.printHex ("VirtualAddress", PI->p_vaddr);
+ W.printHex ("PhysicalAddress", PI->p_paddr);
+ W.printNumber("FileSize", PI->p_filesz);
+ W.printNumber("MemSize", PI->p_memsz);
+ W.printFlags ("Flags", PI->p_flags, makeArrayRef(ElfSegmentFlags));
+ W.printNumber("Alignment", PI->p_align);
}
+}
- std::sort(Libs.begin(), Libs.end(), &compareLibraryName);
+template <class ELFT>
+void ELFDumper<ELFT>::printAttributes() {
+ W.startLine() << "Attributes not implemented.\n";
+}
- for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end();
- I != E; ++I) {
- StringRef Path;
- I->getPath(Path);
- outs() << " " << Path << "\n";
+namespace {
+template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
+ if (Obj->getHeader()->e_machine != EM_ARM) {
+ W.startLine() << "Attributes not implemented.\n";
+ return;
}
+
+ DictScope BA(W, "BuildAttributes");
+ for (ELFO::Elf_Shdr_Iter SI = Obj->begin_sections(), SE = Obj->end_sections();
+ SI != SE; ++SI) {
+ if (SI->sh_type != ELF::SHT_ARM_ATTRIBUTES)
+ continue;
+
+ ErrorOr<ArrayRef<uint8_t> > Contents = Obj->getSectionContents(&(*SI));
+ if (!Contents)
+ continue;
+
+ if ((*Contents)[0] != ARMBuildAttrs::Format_Version) {
+ errs() << "unrecognised FormatVersion: 0x" << utohexstr((*Contents)[0])
+ << '\n';
+ continue;
+ }
+
+ W.printHex("FormatVersion", (*Contents)[0]);
+ if (Contents->size() == 1)
+ continue;
+
+ ARMAttributeParser(W).Parse(*Contents);
+ }
+}
+}
+
+namespace {
+template <class ELFT> class MipsGOTParser {
+public:
+ typedef object::ELFFile<ELFT> ObjectFile;
+ typedef typename ObjectFile::Elf_Shdr Elf_Shdr;
+
+ MipsGOTParser(const ObjectFile *Obj, StreamWriter &W) : Obj(Obj), W(W) {}
+
+ void parseGOT(const Elf_Shdr &GOTShdr);
+
+private:
+ typedef typename ObjectFile::Elf_Sym_Iter Elf_Sym_Iter;
+ typedef typename ObjectFile::Elf_Addr GOTEntry;
+ typedef typename ObjectFile::template ELFEntityIterator<const GOTEntry>
+ GOTIter;
+
+ const ObjectFile *Obj;
+ StreamWriter &W;
+
+ std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
+ GOTIter makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
+
+ bool getGOTTags(uint64_t &LocalGotNum, uint64_t &GotSym);
+ void printGotEntry(uint64_t GotAddr, GOTIter BeginIt, GOTIter It);
+ void printGlobalGotEntry(uint64_t GotAddr, GOTIter BeginIt, GOTIter It,
+ Elf_Sym_Iter Sym);
+};
+}
+
+template <class ELFT>
+void MipsGOTParser<ELFT>::parseGOT(const Elf_Shdr &GOTShdr) {
+ // See "Global Offset Table" in Chapter 5 in the following document
+ // for detailed GOT description.
+ // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
+
+ ErrorOr<ArrayRef<uint8_t>> GOT = Obj->getSectionContents(&GOTShdr);
+ if (!GOT) {
+ W.startLine() << "The .got section is empty.\n";
+ return;
+ }
+
+ uint64_t DtLocalGotNum;
+ uint64_t DtGotSym;
+ if (!getGOTTags(DtLocalGotNum, DtGotSym))
+ return;
+
+ if (DtLocalGotNum > getGOTTotal(*GOT)) {
+ W.startLine() << "MIPS_LOCAL_GOTNO exceeds a number of GOT entries.\n";
+ return;
+ }
+
+ Elf_Sym_Iter DynSymBegin = Obj->begin_dynamic_symbols();
+ Elf_Sym_Iter DynSymEnd = Obj->end_dynamic_symbols();
+ std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
+
+ if (DtGotSym > DynSymTotal) {
+ W.startLine() << "MIPS_GOTSYM exceeds a number of dynamic symbols.\n";
+ return;
+ }
+
+ std::size_t GlobalGotNum = DynSymTotal - DtGotSym;
+
+ if (DtLocalGotNum + GlobalGotNum > getGOTTotal(*GOT)) {
+ W.startLine() << "Number of global GOT entries exceeds the size of GOT.\n";
+ return;
+ }
+
+ GOTIter GotBegin = makeGOTIter(*GOT, 0);
+ GOTIter GotLocalEnd = makeGOTIter(*GOT, DtLocalGotNum);
+ GOTIter It = GotBegin;
+
+ DictScope GS(W, "Primary GOT");
+
+ W.printHex("Canonical gp value", GOTShdr.sh_addr + 0x7ff0);
+ {
+ ListScope RS(W, "Reserved entries");
+
+ {
+ DictScope D(W, "Entry");
+ printGotEntry(GOTShdr.sh_addr, GotBegin, It++);
+ W.printString("Purpose", StringRef("Lazy resolver"));
+ }
+
+ if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
+ DictScope D(W, "Entry");
+ printGotEntry(GOTShdr.sh_addr, GotBegin, It++);
+ W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
+ }
+ }
+ {
+ ListScope LS(W, "Local entries");
+ for (; It != GotLocalEnd; ++It) {
+ DictScope D(W, "Entry");
+ printGotEntry(GOTShdr.sh_addr, GotBegin, It);
+ }
+ }
+ {
+ ListScope GS(W, "Global entries");
+
+ GOTIter GotGlobalEnd = makeGOTIter(*GOT, DtLocalGotNum + GlobalGotNum);
+ Elf_Sym_Iter GotDynSym = DynSymBegin + DtGotSym;
+ for (; It != GotGlobalEnd; ++It) {
+ DictScope D(W, "Entry");
+ printGlobalGotEntry(GOTShdr.sh_addr, GotBegin, It, GotDynSym++);
+ }
+ }
+
+ std::size_t SpecGotNum = getGOTTotal(*GOT) - DtLocalGotNum - GlobalGotNum;
+ W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
+}
+
+template <class ELFT>
+std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
+ return GOT.size() / sizeof(GOTEntry);
+}
+
+template <class ELFT>
+typename MipsGOTParser<ELFT>::GOTIter
+MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
+ const char *Data = reinterpret_cast<const char *>(GOT.data());
+ return GOTIter(sizeof(GOTEntry), Data + EntryNum * sizeof(GOTEntry));
+}
+
+template <class ELFT>
+bool MipsGOTParser<ELFT>::getGOTTags(uint64_t &LocalGotNum, uint64_t &GotSym) {
+ bool FoundLocalGotNum = false;
+ bool FoundGotSym = false;
+ for (const auto &Entry : Obj->dynamic_table()) {
+ switch (Entry.getTag()) {
+ case ELF::DT_MIPS_LOCAL_GOTNO:
+ LocalGotNum = Entry.getVal();
+ FoundLocalGotNum = true;
+ break;
+ case ELF::DT_MIPS_GOTSYM:
+ GotSym = Entry.getVal();
+ FoundGotSym = true;
+ break;
+ }
+ }
+
+ if (!FoundLocalGotNum) {
+ W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
+ return false;
+ }
+
+ if (!FoundGotSym) {
+ W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
+ return false;
+ }
+
+ return true;
+}
+
+template <class ELFT>
+void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr, GOTIter BeginIt,
+ GOTIter It) {
+ int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
+ W.printHex("Address", GotAddr + Offset);
+ W.printNumber("Access", Offset - 0x7ff0);
+ W.printHex("Initial", *It);
+}
+
+template <class ELFT>
+void MipsGOTParser<ELFT>::printGlobalGotEntry(uint64_t GotAddr, GOTIter BeginIt,
+ GOTIter It, Elf_Sym_Iter Sym) {
+ printGotEntry(GotAddr, BeginIt, It);
+
+ W.printHex("Value", Sym->st_value);
+ W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
+
+ unsigned SectionIndex = 0;
+ StringRef SectionName;
+ getSectionNameIndex(*Obj, Sym, SectionName, SectionIndex);
+ W.printHex("Section", SectionName, SectionIndex);
+
+ std::string FullSymbolName = getFullSymbolName(*Obj, Sym);
+ W.printNumber("Name", FullSymbolName, Sym->st_name);
+}
+
+template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
+ if (Obj->getHeader()->e_machine != EM_MIPS) {
+ W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
+ return;
+ }
+
+ llvm::Optional<uint64_t> DtPltGot;
+ for (const auto &Entry : Obj->dynamic_table()) {
+ if (Entry.getTag() == ELF::DT_PLTGOT) {
+ DtPltGot = Entry.getVal();
+ break;
+ }
+ }
+
+ if (!DtPltGot) {
+ W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
+ return;
+ }
+
+ const Elf_Shdr *GotShdr = findSectionByAddress(Obj, *DtPltGot);
+ if (!GotShdr) {
+ W.startLine() << "There is no .got section in the file.\n";
+ return;
+ }
+
+ MipsGOTParser<ELFT>(Obj, W).parseGOT(*GotShdr);
+}
+
+static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
+ {"None", Mips::AFL_EXT_NONE},
+ {"Broadcom SB-1", Mips::AFL_EXT_SB1},
+ {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
+ {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
+ {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
+ {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
+ {"LSI R4010", Mips::AFL_EXT_4010},
+ {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
+ {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
+ {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
+ {"MIPS R4650", Mips::AFL_EXT_4650},
+ {"MIPS R5900", Mips::AFL_EXT_5900},
+ {"MIPS R10000", Mips::AFL_EXT_10000},
+ {"NEC VR4100", Mips::AFL_EXT_4100},
+ {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
+ {"NEC VR4120", Mips::AFL_EXT_4120},
+ {"NEC VR5400", Mips::AFL_EXT_5400},
+ {"NEC VR5500", Mips::AFL_EXT_5500},
+ {"RMI Xlr", Mips::AFL_EXT_XLR},
+ {"Toshiba R3900", Mips::AFL_EXT_3900}
+};
+
+static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
+ {"DSP", Mips::AFL_ASE_DSP},
+ {"DSPR2", Mips::AFL_ASE_DSPR2},
+ {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
+ {"MCU", Mips::AFL_ASE_MCU},
+ {"MDMX", Mips::AFL_ASE_MDMX},
+ {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
+ {"MT", Mips::AFL_ASE_MT},
+ {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
+ {"VZ", Mips::AFL_ASE_VIRT},
+ {"MSA", Mips::AFL_ASE_MSA},
+ {"MIPS16", Mips::AFL_ASE_MIPS16},
+ {"microMIPS", Mips::AFL_ASE_MICROMIPS},
+ {"XPA", Mips::AFL_ASE_XPA}
+};
+
+static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
+ {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
+ {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
+ {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
+ {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
+ {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
+ Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
+ {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
+ {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
+ {"Hard float compat (32-bit CPU, 64-bit FPU)",
+ Mips::Val_GNU_MIPS_ABI_FP_64A}
+};
+
+static const EnumEntry<unsigned> ElfMipsFlags1[] {
+ {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
+};
+
+static int getMipsRegisterSize(uint8_t Flag) {
+ switch (Flag) {
+ case Mips::AFL_REG_NONE:
+ return 0;
+ case Mips::AFL_REG_32:
+ return 32;
+ case Mips::AFL_REG_64:
+ return 64;
+ case Mips::AFL_REG_128:
+ return 128;
+ default:
+ return -1;
+ }
+}
+
+template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
+ const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
+ if (!Shdr) {
+ W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
+ return;
+ }
+ ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr);
+ if (!Sec) {
+ W.startLine() << "The .MIPS.abiflags section is empty.\n";
+ return;
+ }
+ if (Sec->size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
+ W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
+ return;
+ }
+
+ auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec->data());
+
+ raw_ostream &OS = W.getOStream();
+ DictScope GS(W, "MIPS ABI Flags");
+
+ W.printNumber("Version", Flags->version);
+ W.startLine() << "ISA: ";
+ if (Flags->isa_rev <= 1)
+ OS << format("MIPS%u", Flags->isa_level);
+ else
+ OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
+ OS << "\n";
+ W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
+ W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
+ W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
+ W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
+ W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
+ W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
+ W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
+ W.printHex("Flags 2", Flags->flags2);
}
projects / oota-llvm.git / blobdiff