//===----------------------------------------------------------------------===//
#include "llvm-readobj.h"
+#include "ARMAttributeParser.h"
+#include "ARMEHABIPrinter.h"
#include "Error.h"
#include "ObjDumper.h"
+#include "StackMapPrinter.h"
#include "StreamWriter.h"
-
+#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.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;
template<typename ELFT>
class ELFDumper : public ObjDumper {
public:
- 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;
-
- virtual void printDynamicTable() LLVM_OVERRIDE;
- virtual void printNeededLibraries() LLVM_OVERRIDE;
- virtual void printProgramHeaders() LLVM_OVERRIDE;
+ ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer);
+
+ void printFileHeaders() override;
+ void printSections() override;
+ void printRelocations() override;
+ void printDynamicRelocations() override;
+ void printSymbols() override;
+ void printDynamicSymbols() override;
+ void printUnwindInfo() override;
+
+ void printDynamicTable() override;
+ void printNeededLibraries() override;
+ void printProgramHeaders() override;
+ void printHashTable() override;
+ void printGnuHashTable() override;
+ void printLoadName() override;
+
+ void printAttributes() override;
+ void printMipsPLTGOT() override;
+ void printMipsABIFlags() override;
+ void printMipsReginfo() override;
+
+ void printStackMap() const override;
private:
typedef ELFFile<ELFT> ELFO;
typedef typename ELFO::Elf_Shdr Elf_Shdr;
typedef typename ELFO::Elf_Sym Elf_Sym;
-
- void printSymbol(typename ELFO::Elf_Sym_Iter Symbol);
+ typedef typename ELFO::Elf_Dyn Elf_Dyn;
+ typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
+ typedef typename ELFO::Elf_Rel Elf_Rel;
+ typedef typename ELFO::Elf_Rela Elf_Rela;
+ typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range;
+ typedef typename ELFO::Elf_Phdr Elf_Phdr;
+ typedef typename ELFO::Elf_Hash Elf_Hash;
+ typedef typename ELFO::Elf_GnuHash Elf_GnuHash;
+ typedef typename ELFO::Elf_Ehdr Elf_Ehdr;
+ typedef typename ELFO::Elf_Word Elf_Word;
+ typedef typename ELFO::uintX_t uintX_t;
+ typedef typename ELFO::Elf_Versym Elf_Versym;
+ typedef typename ELFO::Elf_Verneed Elf_Verneed;
+ typedef typename ELFO::Elf_Vernaux Elf_Vernaux;
+ typedef typename ELFO::Elf_Verdef Elf_Verdef;
+
+ /// \brief Represents a region described by entries in the .dynamic table.
+ struct DynRegionInfo {
+ DynRegionInfo() : Addr(nullptr), Size(0), EntSize(0) {}
+ /// \brief Address in current address space.
+ const void *Addr;
+ /// \brief Size in bytes of the region.
+ uintX_t Size;
+ /// \brief Size of each entity in the region.
+ uintX_t EntSize;
+ };
+
+ void printSymbolsHelper(bool IsDynamic);
+ void printSymbol(const Elf_Sym *Symbol, const Elf_Shdr *SymTab,
+ StringRef StrTable, bool IsDynamic);
void printRelocations(const Elf_Shdr *Sec);
- void printRelocation(const Elf_Shdr *Sec, typename ELFO::Elf_Rela Rel);
+ void printRelocation(Elf_Rela Rel, const Elf_Shdr *SymTab);
+ void printValue(uint64_t Type, uint64_t Value);
+
+ const Elf_Rela *dyn_rela_begin() const;
+ const Elf_Rela *dyn_rela_end() const;
+ Elf_Rela_Range dyn_relas() const;
+ StringRef getDynamicString(uint64_t Offset) const;
+ const Elf_Dyn *dynamic_table_begin() const {
+ ErrorOr<const Elf_Dyn *> Ret = Obj->dynamic_table_begin(DynamicProgHeader);
+ error(Ret.getError());
+ return *Ret;
+ }
+ const Elf_Dyn *dynamic_table_end() const {
+ ErrorOr<const Elf_Dyn *> Ret = Obj->dynamic_table_end(DynamicProgHeader);
+ error(Ret.getError());
+ return *Ret;
+ }
+ Elf_Dyn_Range dynamic_table() const {
+ ErrorOr<Elf_Dyn_Range> Ret = Obj->dynamic_table(DynamicProgHeader);
+ error(Ret.getError());
+ return *Ret;
+ }
+
+ StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
+ bool &IsDefault);
+ void LoadVersionMap();
+ void LoadVersionNeeds(const Elf_Shdr *ec) const;
+ void LoadVersionDefs(const Elf_Shdr *sec) const;
const ELFO *Obj;
+ DynRegionInfo DynRelaRegion;
+ const Elf_Phdr *DynamicProgHeader = nullptr;
+ StringRef DynamicStringTable;
+ const Elf_Sym *DynSymStart = nullptr;
+ StringRef SOName;
+ const Elf_Hash *HashTable = nullptr;
+ const Elf_GnuHash *GnuHashTable = nullptr;
+ const Elf_Shdr *DotDynSymSec = nullptr;
+ const Elf_Shdr *DotSymtabSec = nullptr;
+ ArrayRef<Elf_Word> ShndxTable;
+
+ const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
+ const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
+ const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
+
+ // Records for each version index the corresponding Verdef or Vernaux entry.
+ // This is filled the first time LoadVersionMap() is called.
+ class VersionMapEntry : public PointerIntPair<const void *, 1> {
+ public:
+ // If the integer is 0, this is an Elf_Verdef*.
+ // If the integer is 1, this is an Elf_Vernaux*.
+ VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
+ VersionMapEntry(const Elf_Verdef *verdef)
+ : PointerIntPair<const void *, 1>(verdef, 0) {}
+ VersionMapEntry(const Elf_Vernaux *vernaux)
+ : PointerIntPair<const void *, 1>(vernaux, 1) {}
+ bool isNull() const { return getPointer() == nullptr; }
+ bool isVerdef() const { return !isNull() && getInt() == 0; }
+ bool isVernaux() const { return !isNull() && getInt() == 1; }
+ const Elf_Verdef *getVerdef() const {
+ return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
+ }
+ const Elf_Vernaux *getVernaux() const {
+ return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
+ }
+ };
+ mutable SmallVector<VersionMapEntry, 16> VersionMap;
+
+public:
+ std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
+ bool IsDynamic);
+ const Elf_Shdr *getDotDynSymSec() const { return DotDynSymSec; }
+ const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; }
+ ArrayRef<Elf_Word> getShndxTable() { return ShndxTable; }
};
template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) {
if (!Val) {
- error(Val);
+ error(Val.getError());
return Default;
}
namespace llvm {
template <class ELFT>
-static error_code createELFDumper(const ELFFile<ELFT> *Obj,
- StreamWriter &Writer,
- OwningPtr<ObjDumper> &Result) {
+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;
}
-error_code createELFDumper(const object::ObjectFile *Obj,
- StreamWriter& Writer,
- OwningPtr<ObjDumper> &Result) {
+std::error_code createELFDumper(const object::ObjectFile *Obj,
+ StreamWriter &Writer,
+ std::unique_ptr<ObjDumper> &Result) {
// Little-endian 32-bit
if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
return createELFDumper(ELFObj->getELFFile(), Writer, Result);
} // namespace llvm
+// Iterate through the versions needed section, and place each Elf_Vernaux
+// in the VersionMap according to its index.
+template <class ELFT>
+void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
+ unsigned vn_size = sec->sh_size; // Size of section in bytes
+ unsigned vn_count = sec->sh_info; // Number of Verneed entries
+ const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
+ const char *sec_end = sec_start + vn_size;
+ // The first Verneed entry is at the start of the section.
+ const char *p = sec_start;
+ for (unsigned i = 0; i < vn_count; i++) {
+ if (p + sizeof(Elf_Verneed) > sec_end)
+ report_fatal_error("Section ended unexpectedly while scanning "
+ "version needed records.");
+ const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
+ if (vn->vn_version != ELF::VER_NEED_CURRENT)
+ report_fatal_error("Unexpected verneed version");
+ // Iterate through the Vernaux entries
+ const char *paux = p + vn->vn_aux;
+ for (unsigned j = 0; j < vn->vn_cnt; j++) {
+ if (paux + sizeof(Elf_Vernaux) > sec_end)
+ report_fatal_error("Section ended unexpected while scanning auxiliary "
+ "version needed records.");
+ const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
+ size_t index = vna->vna_other & ELF::VERSYM_VERSION;
+ if (index >= VersionMap.size())
+ VersionMap.resize(index + 1);
+ VersionMap[index] = VersionMapEntry(vna);
+ paux += vna->vna_next;
+ }
+ p += vn->vn_next;
+ }
+}
+
+// Iterate through the version definitions, and place each Elf_Verdef
+// in the VersionMap according to its index.
+template <class ELFT>
+void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
+ unsigned vd_size = sec->sh_size; // Size of section in bytes
+ unsigned vd_count = sec->sh_info; // Number of Verdef entries
+ const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
+ const char *sec_end = sec_start + vd_size;
+ // The first Verdef entry is at the start of the section.
+ const char *p = sec_start;
+ for (unsigned i = 0; i < vd_count; i++) {
+ if (p + sizeof(Elf_Verdef) > sec_end)
+ report_fatal_error("Section ended unexpectedly while scanning "
+ "version definitions.");
+ const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
+ if (vd->vd_version != ELF::VER_DEF_CURRENT)
+ report_fatal_error("Unexpected verdef version");
+ size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
+ if (index >= VersionMap.size())
+ VersionMap.resize(index + 1);
+ VersionMap[index] = VersionMapEntry(vd);
+ p += vd->vd_next;
+ }
+}
+
+template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() {
+ // If there is no dynamic symtab or version table, there is nothing to do.
+ if (!DynSymStart || !dot_gnu_version_sec)
+ return;
+
+ // Has the VersionMap already been loaded?
+ if (VersionMap.size() > 0)
+ return;
+
+ // The first two version indexes are reserved.
+ // Index 0 is LOCAL, index 1 is GLOBAL.
+ VersionMap.push_back(VersionMapEntry());
+ VersionMap.push_back(VersionMapEntry());
+
+ if (dot_gnu_version_d_sec)
+ LoadVersionDefs(dot_gnu_version_d_sec);
+
+ if (dot_gnu_version_r_sec)
+ LoadVersionNeeds(dot_gnu_version_r_sec);
+}
+
+template <typename ELFT>
+StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
+ const Elf_Sym *symb,
+ bool &IsDefault) {
+ // This is a dynamic symbol. Look in the GNU symbol version table.
+ if (!dot_gnu_version_sec) {
+ // No version table.
+ IsDefault = false;
+ return StringRef("");
+ }
+
+ // Determine the position in the symbol table of this entry.
+ size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
+ reinterpret_cast<uintptr_t>(DynSymStart)) /
+ sizeof(Elf_Sym);
+
+ // Get the corresponding version index entry
+ const Elf_Versym *vs =
+ Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
+ size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
+
+ // Special markers for unversioned symbols.
+ if (version_index == ELF::VER_NDX_LOCAL ||
+ version_index == ELF::VER_NDX_GLOBAL) {
+ IsDefault = false;
+ return StringRef("");
+ }
+
+ // Lookup this symbol in the version table
+ LoadVersionMap();
+ if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
+ reportError("Invalid version entry");
+ const VersionMapEntry &entry = VersionMap[version_index];
+
+ // Get the version name string
+ size_t name_offset;
+ if (entry.isVerdef()) {
+ // The first Verdaux entry holds the name.
+ name_offset = entry.getVerdef()->getAux()->vda_name;
+ } else {
+ name_offset = entry.getVernaux()->vna_name;
+ }
+
+ // Set IsDefault
+ if (entry.isVerdef()) {
+ IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
+ } else {
+ IsDefault = false;
+ }
+
+ if (name_offset >= StrTab.size())
+ reportError("Invalid string offset");
+ return StringRef(StrTab.data() + name_offset);
+}
+
+template <typename ELFT>
+std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
+ StringRef StrTable,
+ bool IsDynamic) {
+ StringRef SymbolName = errorOrDefault(Symbol->getName(StrTable));
+ if (!IsDynamic)
+ return SymbolName;
+
+ std::string FullSymbolName(SymbolName);
+
+ bool IsDefault;
+ StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
+ FullSymbolName += (IsDefault ? "@@" : "@");
+ FullSymbolName += Version;
+ return FullSymbolName;
+}
+
+template <typename ELFO>
+static void
+getSectionNameIndex(const ELFO &Obj, const typename ELFO::Elf_Sym *Symbol,
+ const typename ELFO::Elf_Shdr *SymTab,
+ ArrayRef<typename ELFO::Elf_Word> ShndxTable,
+ 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->isAbsolute())
+ SectionName = "Absolute";
+ else if (Symbol->isCommon())
+ SectionName = "Common";
+ else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
+ SectionName = "Reserved";
+ else {
+ if (SectionIndex == SHN_XINDEX)
+ SectionIndex =
+ Obj.getExtendedSymbolTableIndex(Symbol, SymTab, ShndxTable);
+ ErrorOr<const typename ELFO::Elf_Shdr *> Sec = Obj.getSection(SectionIndex);
+ error(Sec.getError());
+ SectionName = errorOrDefault(Obj.getSectionName(*Sec));
+ }
+}
+
+template <class ELFO>
+static const typename ELFO::Elf_Shdr *findSectionByAddress(const ELFO *Obj,
+ uint64_t Addr) {
+ for (const auto &Shdr : Obj->sections())
+ if (Shdr.sh_addr == Addr)
+ return &Shdr;
+ return nullptr;
+}
+
+template <class ELFO>
+static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &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 },
{ "32-bit", ELF::ELFCLASS32 },
{ "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_386 ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_68K ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_88K ),
- LLVM_READOBJ_ENUM_ENT(ELF, EM_486 ),
+ LLVM_READOBJ_ENUM_ENT(ELF, EM_IAMCU ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_860 ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS ),
LLVM_READOBJ_ENUM_ENT(ELF, EM_S370 ),
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_56800EX ),
+ LLVM_READOBJ_ENUM_ENT(ELF, EM_AMDGPU )
};
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[] = {
{ "GNU_IFunc", ELF::STT_GNU_IFUNC }
};
+static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
+ { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL },
+ { "AMDGPU_HSA_INDIRECT_FUNCTION", ELF::STT_AMDGPU_HSA_INDIRECT_FUNCTION },
+ { "AMDGPU_HSA_METADATA", ELF::STT_AMDGPU_HSA_METADATA }
+};
+
static const char *getElfSectionType(unsigned Arch, unsigned Type) {
switch (Arch) {
case ELF::EM_ARM:
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);
}
}
LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS ),
LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION),
- LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP )
+ LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP ),
+ LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL),
+ LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY),
+ LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE),
+ LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT)
};
static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
// Check potentially overlapped processor-specific
// program header type.
switch (Arch) {
+ case ELF::EM_AMDGPU:
+ switch (Type) {
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
+ LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
+ }
case ELF::EM_ARM:
switch (Type) {
LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
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);
}
}
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 <typename ELFT>
+ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer)
+ : ObjDumper(Writer), Obj(Obj) {
+
+ SmallVector<const Elf_Phdr *, 4> LoadSegments;
+ for (const Elf_Phdr &Phdr : Obj->program_headers()) {
+ if (Phdr.p_type == ELF::PT_DYNAMIC) {
+ DynamicProgHeader = &Phdr;
+ continue;
+ }
+ if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
+ continue;
+ LoadSegments.push_back(&Phdr);
+ }
+
+ auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
+ const Elf_Phdr **I = std::upper_bound(
+ LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>);
+ if (I == LoadSegments.begin())
+ report_fatal_error("Virtual address is not in any segment");
+ --I;
+ const Elf_Phdr &Phdr = **I;
+ uint64_t Delta = VAddr - Phdr.p_vaddr;
+ if (Delta >= Phdr.p_filesz)
+ report_fatal_error("Virtual address is not in any segment");
+ return Obj->base() + Phdr.p_offset + Delta;
+ };
+
+ uint64_t SONameOffset = 0;
+ const char *StringTableBegin = nullptr;
+ uint64_t StringTableSize = 0;
+ for (const Elf_Dyn &Dyn : dynamic_table()) {
+ switch (Dyn.d_tag) {
+ case ELF::DT_HASH:
+ HashTable =
+ reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
+ break;
+ case ELF::DT_GNU_HASH:
+ GnuHashTable =
+ reinterpret_cast<const Elf_GnuHash *>(toMappedAddr(Dyn.getPtr()));
+ break;
+ case ELF::DT_RELA:
+ DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
+ break;
+ case ELF::DT_RELASZ:
+ DynRelaRegion.Size = Dyn.getVal();
+ break;
+ case ELF::DT_RELAENT:
+ DynRelaRegion.EntSize = Dyn.getVal();
+ break;
+ case ELF::DT_SONAME:
+ SONameOffset = Dyn.getVal();
+ break;
+ case ELF::DT_STRTAB:
+ StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
+ break;
+ case ELF::DT_STRSZ:
+ StringTableSize = Dyn.getVal();
+ break;
+ case ELF::DT_SYMTAB:
+ DynSymStart =
+ reinterpret_cast<const Elf_Sym *>(toMappedAddr(Dyn.getPtr()));
+ break;
+ }
+ }
+ if (StringTableBegin)
+ DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
+ if (SONameOffset)
+ SOName = getDynamicString(SONameOffset);
+
+ for (const Elf_Shdr &Sec : Obj->sections()) {
+ switch (Sec.sh_type) {
+ case ELF::SHT_GNU_versym:
+ if (dot_gnu_version_sec != nullptr)
+ reportError("Multiple SHT_GNU_versym");
+ dot_gnu_version_sec = &Sec;
+ break;
+ case ELF::SHT_GNU_verdef:
+ if (dot_gnu_version_d_sec != nullptr)
+ reportError("Multiple SHT_GNU_verdef");
+ dot_gnu_version_d_sec = &Sec;
+ break;
+ case ELF::SHT_GNU_verneed:
+ if (dot_gnu_version_r_sec != nullptr)
+ reportError("Multilpe SHT_GNU_verneed");
+ dot_gnu_version_r_sec = &Sec;
+ break;
+ case ELF::SHT_DYNSYM:
+ if (DotDynSymSec != nullptr)
+ reportError("Multilpe SHT_DYNSYM");
+ DotDynSymSec = &Sec;
+ break;
+ case ELF::SHT_SYMTAB:
+ if (DotSymtabSec != nullptr)
+ reportError("Multilpe SHT_SYMTAB");
+ DotSymtabSec = &Sec;
+ break;
+ case ELF::SHT_SYMTAB_SHNDX: {
+ ErrorOr<ArrayRef<Elf_Word>> TableOrErr = Obj->getSHNDXTable(Sec);
+ error(TableOrErr.getError());
+ ShndxTable = *TableOrErr;
+ break;
+ }
+ }
+ }
+}
+
+template <typename ELFT>
+const typename ELFDumper<ELFT>::Elf_Rela *
+ELFDumper<ELFT>::dyn_rela_begin() const {
+ if (DynRelaRegion.Size && DynRelaRegion.EntSize != sizeof(Elf_Rela))
+ report_fatal_error("Invalid relocation entry size");
+ return reinterpret_cast<const Elf_Rela *>(DynRelaRegion.Addr);
+}
+
+template <typename ELFT>
+const typename ELFDumper<ELFT>::Elf_Rela *
+ELFDumper<ELFT>::dyn_rela_end() const {
+ uint64_t Size = DynRelaRegion.Size;
+ if (Size % sizeof(Elf_Rela))
+ report_fatal_error("Invalid relocation table size");
+ return dyn_rela_begin() + Size / sizeof(Elf_Rela);
+}
+
+template <typename ELFT>
+typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
+ return make_range(dyn_rela_begin(), dyn_rela_end());
+}
+
template<class ELFT>
void ELFDumper<ELFT>::printFileHeaders() {
- const typename ELFO::Elf_Ehdr *Header = Obj->getHeader();
+ const Elf_Ehdr *Header = Obj->getHeader();
{
DictScope D(W, "ElfHeader");
W.printEnum ("DataEncoding", Header->e_ident[ELF::EI_DATA],
makeArrayRef(ElfDataEncoding));
W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
- W.printEnum ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
+
+ // Handle architecture specific OS/ABI values.
+ if (Header->e_machine == ELF::EM_AMDGPU &&
+ Header->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
+ W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
+ else
+ W.printEnum ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
makeArrayRef(ElfOSABI));
W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));
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;
- for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; ++SecI) {
+ for (const Elf_Shdr &Sec : Obj->sections()) {
++SectionIndex;
- const Elf_Shdr *Section = &*SecI;
- StringRef Name = errorOrDefault(Obj->getSectionName(Section));
+ StringRef Name = errorOrDefault(Obj->getSectionName(&Sec));
DictScope SectionD(W, "Section");
W.printNumber("Index", SectionIndex);
- W.printNumber("Name", Name, Section->sh_name);
+ W.printNumber("Name", Name, Sec.sh_name);
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);
- W.printNumber("Size", Section->sh_size);
- W.printNumber("Link", Section->sh_link);
- W.printNumber("Info", Section->sh_info);
- W.printNumber("AddressAlignment", Section->sh_addralign);
- W.printNumber("EntrySize", Section->sh_entsize);
+ getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type),
+ Sec.sh_type);
+ W.printFlags("Flags", Sec.sh_flags, makeArrayRef(ElfSectionFlags));
+ W.printHex("Address", Sec.sh_addr);
+ W.printHex("Offset", Sec.sh_offset);
+ W.printNumber("Size", Sec.sh_size);
+ W.printNumber("Link", Sec.sh_link);
+ W.printNumber("Info", Sec.sh_info);
+ W.printNumber("AddressAlignment", Sec.sh_addralign);
+ W.printNumber("EntrySize", Sec.sh_entsize);
if (opts::SectionRelocations) {
ListScope D(W, "Relocations");
- printRelocations(Section);
+ printRelocations(&Sec);
}
if (opts::SectionSymbols) {
ListScope D(W, "Symbols");
- for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
- SymE = Obj->end_symbols();
- SymI != SymE; ++SymI) {
- if (Obj->getSection(&*SymI) == Section)
- printSymbol(SymI);
+ const Elf_Shdr *Symtab = DotSymtabSec;
+ ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
+ error(StrTableOrErr.getError());
+ StringRef StrTable = *StrTableOrErr;
+
+ for (const Elf_Sym &Sym : Obj->symbols(Symtab)) {
+ ErrorOr<const Elf_Shdr *> SymSec =
+ Obj->getSection(&Sym, Symtab, ShndxTable);
+ if (!SymSec)
+ continue;
+ if (*SymSec == &Sec)
+ printSymbol(&Sym, Symtab, StrTable, false);
}
}
- if (opts::SectionData) {
- ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(Section));
+ if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
+ ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(&Sec));
W.printBinaryBlock("SectionData",
StringRef((const char *)Data.data(), Data.size()));
}
ListScope D(W, "Relocations");
int SectionNumber = -1;
- for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; ++SecI) {
+ for (const Elf_Shdr &Sec : Obj->sections()) {
++SectionNumber;
- if (SecI->sh_type != ELF::SHT_REL && SecI->sh_type != ELF::SHT_RELA)
+ if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
continue;
- StringRef Name = errorOrDefault(Obj->getSectionName(&*SecI));
+ StringRef Name = errorOrDefault(Obj->getSectionName(&Sec));
W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
W.indent();
- printRelocations(&*SecI);
+ printRelocations(&Sec);
W.unindent();
W.startLine() << "}\n";
}
}
+template<class ELFT>
+void ELFDumper<ELFT>::printDynamicRelocations() {
+ W.startLine() << "Dynamic Relocations {\n";
+ W.indent();
+ for (const Elf_Rela &Rel : dyn_relas()) {
+ SmallString<32> RelocName;
+ Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
+ StringRef SymbolName;
+ uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
+ const Elf_Sym *Sym = DynSymStart + SymIndex;
+ SymbolName = errorOrDefault(Sym->getName(DynamicStringTable));
+ if (opts::ExpandRelocs) {
+ DictScope Group(W, "Relocation");
+ W.printHex("Offset", Rel.r_offset);
+ W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
+ W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
+ W.printHex("Addend", Rel.r_addend);
+ }
+ else {
+ raw_ostream& OS = W.startLine();
+ OS << W.hex(Rel.r_offset) << " " << RelocName << " "
+ << (SymbolName.size() > 0 ? SymbolName : "-") << " "
+ << W.hex(Rel.r_addend) << "\n";
+ }
+ }
+ W.unindent();
+ W.startLine() << "}\n";
+}
+
template <class ELFT>
void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) {
+ ErrorOr<const Elf_Shdr *> SymTabOrErr = Obj->getSection(Sec->sh_link);
+ error(SymTabOrErr.getError());
+ const Elf_Shdr *SymTab = *SymTabOrErr;
+
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;
+ for (const Elf_Rel &R : Obj->rels(Sec)) {
+ Elf_Rela Rela;
+ Rela.r_offset = R.r_offset;
+ Rela.r_info = R.r_info;
Rela.r_addend = 0;
- printRelocation(Sec, Rela);
+ printRelocation(Rela, SymTab);
}
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);
- }
+ for (const Elf_Rela &R : Obj->relas(Sec))
+ printRelocation(R, SymTab);
break;
}
}
template <class ELFT>
-void ELFDumper<ELFT>::printRelocation(const Elf_Shdr *Sec,
- typename ELFO::Elf_Rela Rel) {
+void ELFDumper<ELFT>::printRelocation(Elf_Rela Rel, const Elf_Shdr *SymTab) {
SmallString<32> RelocName;
Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
- StringRef SymbolName;
- std::pair<const Elf_Shdr *, const Elf_Sym *> Sym =
- Obj->getRelocationSymbol(Sec, &Rel);
- if (Sym.first)
- SymbolName = errorOrDefault(Obj->getSymbolName(Sym.first, Sym.second));
+ StringRef TargetName;
+ const Elf_Sym *Sym = Obj->getRelocationSymbol(&Rel, SymTab);
+ if (Sym && Sym->getType() == ELF::STT_SECTION) {
+ ErrorOr<const Elf_Shdr *> Sec = Obj->getSection(Sym, SymTab, ShndxTable);
+ error(Sec.getError());
+ ErrorOr<StringRef> SecName = Obj->getSectionName(*Sec);
+ if (SecName)
+ TargetName = SecName.get();
+ } else if (Sym) {
+ ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*SymTab);
+ error(StrTableOrErr.getError());
+ TargetName = errorOrDefault(Sym->getName(*StrTableOrErr));
+ }
if (opts::ExpandRelocs) {
DictScope Group(W, "Relocation");
W.printHex("Offset", Rel.r_offset);
W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
- W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
+ 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
- << " " << (SymbolName.size() > 0 ? SymbolName : "-")
- << " " << W.hex(Rel.r_addend)
- << "\n";
+ OS << W.hex(Rel.r_offset) << " " << RelocName << " "
+ << (TargetName.size() > 0 ? TargetName : "-") << " "
+ << W.hex(Rel.r_addend) << "\n";
}
}
+template<class ELFT>
+void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) {
+ const Elf_Shdr *Symtab = (IsDynamic) ? DotDynSymSec : DotSymtabSec;
+ if (!Symtab)
+ return;
+ ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
+ error(StrTableOrErr.getError());
+ StringRef StrTable = *StrTableOrErr;
+ for (const Elf_Sym &Sym : Obj->symbols(Symtab))
+ printSymbol(&Sym, Symtab, StrTable, IsDynamic);
+}
+
template<class ELFT>
void ELFDumper<ELFT>::printSymbols() {
ListScope Group(W, "Symbols");
- for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
- SymE = Obj->end_symbols();
- SymI != SymE; ++SymI) {
- printSymbol(SymI);
- }
+ printSymbolsHelper(false);
}
template<class ELFT>
void ELFDumper<ELFT>::printDynamicSymbols() {
ListScope Group(W, "DynamicSymbols");
-
- for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_dynamic_symbols(),
- SymE = Obj->end_dynamic_symbols();
- SymI != SymE; ++SymI) {
- printSymbol(SymI);
- }
+ printSymbolsHelper(true);
}
template <class ELFT>
-void ELFDumper<ELFT>::printSymbol(typename ELFO::Elf_Sym_Iter Symbol) {
- StringRef SymbolName = errorOrDefault(Obj->getSymbolName(Symbol));
- const Elf_Shdr *Sec = Obj->getSection(&*Symbol);
- StringRef SectionName = Sec ? errorOrDefault(Obj->getSectionName(Sec)) : "";
- std::string FullSymbolName(SymbolName);
- if (Symbol.isDynamic()) {
- bool IsDefault;
- ErrorOr<StringRef> Version = Obj->getSymbolVersion(0, &*Symbol, IsDefault);
- if (Version) {
- FullSymbolName += (IsDefault ? "@@" : "@");
- FullSymbolName += *Version;
- } else
- error(Version);
- }
+void ELFDumper<ELFT>::printSymbol(const Elf_Sym *Symbol, const Elf_Shdr *SymTab,
+ StringRef StrTable, bool IsDynamic) {
+ unsigned SectionIndex = 0;
+ StringRef SectionName;
+ getSectionNameIndex(*Obj, Symbol, SymTab, ShndxTable, SectionName,
+ SectionIndex);
+ std::string FullSymbolName = getFullSymbolName(Symbol, StrTable, IsDynamic);
+ unsigned char SymbolType = Symbol->getType();
DictScope D(W, "Symbol");
W.printNumber("Name", FullSymbolName, Symbol->st_name);
W.printNumber("Size", Symbol->st_size);
W.printEnum ("Binding", Symbol->getBinding(),
makeArrayRef(ElfSymbolBindings));
- W.printEnum ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
+ if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
+ SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
+ W.printEnum ("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
+ else
+ W.printEnum ("Type", SymbolType, 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(VERDEF);
+ LLVM_READOBJ_TYPE_CASE(VERDEFNUM);
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_RLD_MAP_REL);
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
+#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) {
+StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
+ if (Value >= DynamicStringTable.size())
+ reportError("Invalid dynamic string table reference");
+ return StringRef(DynamicStringTable.data() + Value);
+}
+
+template <class ELFT>
+void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
+ raw_ostream &OS = W.getOStream();
switch (Type) {
case DT_PLTREL:
if (Value == DT_REL) {
case DT_FINI_ARRAY:
case DT_PREINIT_ARRAY:
case DT_DEBUG:
+ case DT_VERDEF:
case DT_VERNEED:
case DT_VERSYM:
+ case DT_GNU_HASH:
case DT_NULL:
- case DT_MIPS_FLAGS:
case DT_MIPS_BASE_ADDRESS:
case DT_MIPS_GOTSYM:
+ case DT_MIPS_RLD_MAP:
+ case DT_MIPS_RLD_MAP_REL:
+ case DT_MIPS_PLTGOT:
+ case DT_MIPS_OPTIONS:
OS << format("0x%" PRIX64, Value);
break;
+ case DT_RELCOUNT:
+ case DT_VERDEFNUM:
case DT_VERNEEDNUM:
case DT_MIPS_RLD_VERSION:
case DT_MIPS_LOCAL_GOTNO:
OS << Value << " (bytes)";
break;
case DT_NEEDED:
- OS << "SharedLibrary (" << O->getDynamicString(Value) << ")";
+ OS << "SharedLibrary (" << getDynamicString(Value) << ")";
break;
case DT_SONAME:
- OS << "LibrarySoname (" << O->getDynamicString(Value) << ")";
+ OS << "LibrarySoname (" << getDynamicString(Value) << ")";
break;
case DT_RPATH:
case DT_RUNPATH:
- OS << O->getDynamicString(Value);
+ OS << 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;
+ default:
+ OS << format("0x%" PRIX64, Value);
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, DotSymtabSec);
+ return Ctx.PrintUnwindInformation();
+ }
+ W.startLine() << "UnwindInfo not implemented.\n";
+}
+}
+
template<class ELFT>
void ELFDumper<ELFT>::printDynamicTable() {
- typedef typename ELFO::Elf_Dyn_Iter EDI;
- EDI Start = Obj->begin_dynamic_table(), End = Obj->end_dynamic_table(true);
+ auto I = dynamic_table_begin();
+ auto E = dynamic_table_end();
- if (Start == End)
+ if (I == E)
+ return;
+
+ --E;
+ while (I != E && E->getTag() == ELF::DT_NULL)
+ --E;
+ if (E->getTag() != ELF::DT_NULL)
+ ++E;
+ ++E;
+
+ ptrdiff_t Total = std::distance(I, E);
+ if (Total == 0)
return;
- ptrdiff_t Total = std::distance(Start, End);
raw_ostream &OS = W.getOStream();
W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
W.startLine()
<< " Tag" << (Is64 ? " " : " ") << "Type"
<< " " << "Name/Value\n";
- for (; Start != End; ++Start) {
- 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);
+ while (I != E) {
+ const Elf_Dyn &Entry = *I;
+ uintX_t Tag = Entry.getTag();
+ ++I;
+ W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, true) << " "
+ << format("%-21s", getTypeString(Tag));
+ printValue(Tag, Entry.getVal());
OS << "\n";
}
typedef std::vector<StringRef> LibsTy;
LibsTy Libs;
- for (typename ELFO::Elf_Dyn_Iter DynI = Obj->begin_dynamic_table(),
- DynE = Obj->end_dynamic_table();
- DynI != DynE; ++DynI)
- if (DynI->d_tag == ELF::DT_NEEDED)
- Libs.push_back(Obj->getDynamicString(DynI->d_un.d_val));
+ for (const auto &Entry : dynamic_table())
+ if (Entry.d_tag == ELF::DT_NEEDED)
+ Libs.push_back(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";
+ for (const auto &L : Libs) {
+ outs() << " " << L << "\n";
}
}
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) {
+ for (const Elf_Phdr &Phdr : Obj->program_headers()) {
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);
+ W.printHex("Type",
+ getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
+ Phdr.p_type);
+ W.printHex("Offset", Phdr.p_offset);
+ W.printHex("VirtualAddress", Phdr.p_vaddr);
+ W.printHex("PhysicalAddress", Phdr.p_paddr);
+ W.printNumber("FileSize", Phdr.p_filesz);
+ W.printNumber("MemSize", Phdr.p_memsz);
+ W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
+ W.printNumber("Alignment", Phdr.p_align);
}
}
+
+template <typename ELFT>
+void ELFDumper<ELFT>::printHashTable() {
+ DictScope D(W, "HashTable");
+ if (!HashTable)
+ return;
+ W.printNumber("Num Buckets", HashTable->nbucket);
+ W.printNumber("Num Chains", HashTable->nchain);
+ W.printList("Buckets", HashTable->buckets());
+ W.printList("Chains", HashTable->chains());
+}
+
+template <typename ELFT>
+void ELFDumper<ELFT>::printGnuHashTable() {
+ DictScope D(W, "GnuHashTable");
+ if (!GnuHashTable)
+ return;
+ W.printNumber("Num Buckets", GnuHashTable->nbuckets);
+ W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
+ W.printNumber("Num Mask Words", GnuHashTable->maskwords);
+ W.printNumber("Shift Count", GnuHashTable->shift2);
+ W.printHexList("Bloom Filter", GnuHashTable->filter());
+ W.printList("Buckets", GnuHashTable->buckets());
+ if (!DotDynSymSec)
+ reportError("No dynamic symbol section");
+ W.printHexList("Values",
+ GnuHashTable->values(DotDynSymSec->getEntityCount()));
+}
+
+template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
+ outs() << "LoadName: " << SOName << '\n';
+}
+
+template <class ELFT>
+void ELFDumper<ELFT>::printAttributes() {
+ W.startLine() << "Attributes not implemented.\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 (const ELFO::Elf_Shdr &Sec : Obj->sections()) {
+ if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
+ continue;
+
+ ErrorOr<ArrayRef<uint8_t>> Contents = Obj->getSectionContents(&Sec);
+ 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> ELFO;
+ typedef typename ELFO::Elf_Shdr Elf_Shdr;
+ typedef typename ELFO::Elf_Sym Elf_Sym;
+ typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
+ typedef typename ELFO::Elf_Addr GOTEntry;
+ typedef typename ELFO::Elf_Rel Elf_Rel;
+ typedef typename ELFO::Elf_Rela Elf_Rela;
+
+ MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
+ Elf_Dyn_Range DynTable, StreamWriter &W);
+
+ void parseGOT();
+ void parsePLT();
+
+private:
+ ELFDumper<ELFT> *Dumper;
+ const ELFO *Obj;
+ StreamWriter &W;
+ llvm::Optional<uint64_t> DtPltGot;
+ llvm::Optional<uint64_t> DtLocalGotNum;
+ llvm::Optional<uint64_t> DtGotSym;
+ llvm::Optional<uint64_t> DtMipsPltGot;
+ llvm::Optional<uint64_t> DtJmpRel;
+
+ std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
+ const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
+
+ void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
+ const GOTEntry *It);
+ void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
+ const GOTEntry *It, const Elf_Sym *Sym,
+ StringRef StrTable, bool IsDynamic);
+ void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
+ const GOTEntry *It, StringRef Purpose);
+ void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
+ const GOTEntry *It, StringRef StrTable,
+ const Elf_Sym *Sym);
+};
+}
+
+template <class ELFT>
+MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
+ Elf_Dyn_Range DynTable, StreamWriter &W)
+ : Dumper(Dumper), Obj(Obj), W(W) {
+ for (const auto &Entry : DynTable) {
+ switch (Entry.getTag()) {
+ case ELF::DT_PLTGOT:
+ DtPltGot = Entry.getVal();
+ break;
+ case ELF::DT_MIPS_LOCAL_GOTNO:
+ DtLocalGotNum = Entry.getVal();
+ break;
+ case ELF::DT_MIPS_GOTSYM:
+ DtGotSym = Entry.getVal();
+ break;
+ case ELF::DT_MIPS_PLTGOT:
+ DtMipsPltGot = Entry.getVal();
+ break;
+ case ELF::DT_JMPREL:
+ DtJmpRel = Entry.getVal();
+ break;
+ }
+ }
+}
+
+template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
+ // 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
+ if (!DtPltGot) {
+ W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
+ return;
+ }
+ if (!DtLocalGotNum) {
+ W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
+ return;
+ }
+ if (!DtGotSym) {
+ W.startLine() << "Cannot find MIPS_GOTSYM 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;
+ }
+
+ ErrorOr<ArrayRef<uint8_t>> GOT = Obj->getSectionContents(GOTShdr);
+ if (!GOT) {
+ W.startLine() << "The .got section is empty.\n";
+ return;
+ }
+
+ if (*DtLocalGotNum > getGOTTotal(*GOT)) {
+ W.startLine() << "MIPS_LOCAL_GOTNO exceeds a number of GOT entries.\n";
+ return;
+ }
+
+ const Elf_Shdr *DynSymSec = Dumper->getDotDynSymSec();
+ ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(*DynSymSec);
+ error(StrTable.getError());
+ const Elf_Sym *DynSymBegin = Obj->symbol_begin(DynSymSec);
+ const Elf_Sym *DynSymEnd = Obj->symbol_end(DynSymSec);
+ 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;
+ }
+
+ const GOTEntry *GotBegin = makeGOTIter(*GOT, 0);
+ const GOTEntry *GotLocalEnd = makeGOTIter(*GOT, *DtLocalGotNum);
+ const GOTEntry *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");
+
+ const GOTEntry *GotGlobalEnd =
+ makeGOTIter(*GOT, *DtLocalGotNum + GlobalGotNum);
+ const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym;
+ for (; It != GotGlobalEnd; ++It) {
+ DictScope D(W, "Entry");
+ printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++,
+ *StrTable, true);
+ }
+ }
+
+ std::size_t SpecGotNum = getGOTTotal(*GOT) - *DtLocalGotNum - GlobalGotNum;
+ W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
+}
+
+template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
+ if (!DtMipsPltGot) {
+ W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
+ return;
+ }
+ if (!DtJmpRel) {
+ W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
+ return;
+ }
+
+ const Elf_Shdr *PLTShdr = findSectionByAddress(Obj, *DtMipsPltGot);
+ if (!PLTShdr) {
+ W.startLine() << "There is no .got.plt section in the file.\n";
+ return;
+ }
+ ErrorOr<ArrayRef<uint8_t>> PLT = Obj->getSectionContents(PLTShdr);
+ if (!PLT) {
+ W.startLine() << "The .got.plt section is empty.\n";
+ return;
+ }
+
+ const Elf_Shdr *PLTRelShdr = findSectionByAddress(Obj, *DtJmpRel);
+ if (!PLTShdr) {
+ W.startLine() << "There is no .rel.plt section in the file.\n";
+ return;
+ }
+ ErrorOr<const Elf_Shdr *> SymTableOrErr =
+ Obj->getSection(PLTRelShdr->sh_link);
+ error(SymTableOrErr.getError());
+ const Elf_Shdr *SymTable = *SymTableOrErr;
+ ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(*SymTable);
+ error(StrTable.getError());
+
+ const GOTEntry *PLTBegin = makeGOTIter(*PLT, 0);
+ const GOTEntry *PLTEnd = makeGOTIter(*PLT, getGOTTotal(*PLT));
+ const GOTEntry *It = PLTBegin;
+
+ DictScope GS(W, "PLT GOT");
+ {
+ ListScope RS(W, "Reserved entries");
+ printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
+ if (It != PLTEnd)
+ printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
+ }
+ {
+ ListScope GS(W, "Entries");
+
+ switch (PLTRelShdr->sh_type) {
+ case ELF::SHT_REL:
+ for (const Elf_Rel *RI = Obj->rel_begin(PLTRelShdr),
+ *RE = Obj->rel_end(PLTRelShdr);
+ RI != RE && It != PLTEnd; ++RI, ++It) {
+ const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable);
+ printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym);
+ }
+ break;
+ case ELF::SHT_RELA:
+ for (const Elf_Rela *RI = Obj->rela_begin(PLTRelShdr),
+ *RE = Obj->rela_end(PLTRelShdr);
+ RI != RE && It != PLTEnd; ++RI, ++It) {
+ const Elf_Sym *Sym = Obj->getRelocationSymbol(&*RI, SymTable);
+ printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym);
+ }
+ break;
+ }
+ }
+}
+
+template <class ELFT>
+std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
+ return GOT.size() / sizeof(GOTEntry);
+}
+
+template <class ELFT>
+const typename MipsGOTParser<ELFT>::GOTEntry *
+MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
+ const char *Data = reinterpret_cast<const char *>(GOT.data());
+ return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
+}
+
+template <class ELFT>
+void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
+ const GOTEntry *BeginIt,
+ const GOTEntry *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, const GOTEntry *BeginIt, const GOTEntry *It,
+ const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) {
+ 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, Dumper->getDotDynSymSec(),
+ Dumper->getShndxTable(), SectionName, SectionIndex);
+ W.printHex("Section", SectionName, SectionIndex);
+
+ std::string FullSymbolName =
+ Dumper->getFullSymbolName(Sym, StrTable, IsDynamic);
+ W.printNumber("Name", FullSymbolName, Sym->st_name);
+}
+
+template <class ELFT>
+void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
+ const GOTEntry *BeginIt,
+ const GOTEntry *It, StringRef Purpose) {
+ DictScope D(W, "Entry");
+ int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
+ W.printHex("Address", PLTAddr + Offset);
+ W.printHex("Initial", *It);
+ W.printString("Purpose", Purpose);
+}
+
+template <class ELFT>
+void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
+ const GOTEntry *BeginIt,
+ const GOTEntry *It, StringRef StrTable,
+ const Elf_Sym *Sym) {
+ DictScope D(W, "Entry");
+ int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
+ W.printHex("Address", PLTAddr + Offset);
+ W.printHex("Initial", *It);
+ W.printHex("Value", Sym->st_value);
+ W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
+
+ unsigned SectionIndex = 0;
+ StringRef SectionName;
+ getSectionNameIndex(*Obj, Sym, Dumper->getDotDynSymSec(),
+ Dumper->getShndxTable(), SectionName, SectionIndex);
+ W.printHex("Section", SectionName, SectionIndex);
+
+ std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
+ 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;
+ }
+
+ MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
+ GOTParser.parseGOT();
+ GOTParser.parsePLT();
+}
+
+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);
+}
+
+template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
+ const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
+ if (!Shdr) {
+ W.startLine() << "There is no .reginfo section in the file.\n";
+ return;
+ }
+ ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr);
+ if (!Sec) {
+ W.startLine() << "The .reginfo section is empty.\n";
+ return;
+ }
+ if (Sec->size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
+ W.startLine() << "The .reginfo section has a wrong size.\n";
+ return;
+ }
+
+ auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec->data());
+
+ DictScope GS(W, "MIPS RegInfo");
+ W.printHex("GP", Reginfo->ri_gp_value);
+ W.printHex("General Mask", Reginfo->ri_gprmask);
+ W.printHex("Co-Proc Mask0", Reginfo->ri_cprmask[0]);
+ W.printHex("Co-Proc Mask1", Reginfo->ri_cprmask[1]);
+ W.printHex("Co-Proc Mask2", Reginfo->ri_cprmask[2]);
+ W.printHex("Co-Proc Mask3", Reginfo->ri_cprmask[3]);
+}
+
+template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
+ const Elf_Shdr *StackMapSection = nullptr;
+ for (const auto &Sec : Obj->sections()) {
+ ErrorOr<StringRef> Name = Obj->getSectionName(&Sec);
+ if (*Name == ".llvm_stackmaps") {
+ StackMapSection = &Sec;
+ break;
+ }
+ }
+
+ if (!StackMapSection)
+ return;
+
+ StringRef StackMapContents;
+ ErrorOr<ArrayRef<uint8_t>> StackMapContentsArray =
+ Obj->getSectionContents(StackMapSection);
+
+ prettyPrintStackMap(
+ llvm::outs(),
+ StackMapV1Parser<ELFT::TargetEndianness>(*StackMapContentsArray));
+}
projects / oota-llvm.git / blobdiff