//===----------------------------------------------------------------------===//
#include "llvm-readobj.h"
-#include "ObjDumper.h"
-
+#include "ARMWinEHPrinter.h"
#include "Error.h"
+#include "ObjDumper.h"
#include "StreamWriter.h"
-
+#include "Win64EHDumper.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/COFF.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
+#include "llvm/Support/DataExtractor.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/Win64EH.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
-
#include <algorithm>
#include <cstring>
+#include <system_error>
#include <time.h>
using namespace llvm;
cacheRelocations();
}
- 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 printFileHeaders() override;
+ virtual void printSections() override;
+ virtual void printRelocations() override;
+ virtual void printSymbols() override;
+ virtual void printDynamicSymbols() override;
+ virtual void printUnwindInfo() override;
private:
- void printSymbol(symbol_iterator SymI);
-
- void printRelocation(section_iterator SecI, relocation_iterator RelI);
-
+ void printSymbol(const SymbolRef &Sym);
+ void printRelocation(const SectionRef &Section, const RelocationRef &Reloc);
void printDataDirectory(uint32_t Index, const std::string &FieldName);
- void printX64UnwindInfo();
+ template <class PEHeader> void printPEHeader(const PEHeader *Hdr);
+ void printBaseOfDataField(const pe32_header *Hdr);
+ void printBaseOfDataField(const pe32plus_header *Hdr);
- void printRuntimeFunction(
- const RuntimeFunction& RTF,
- uint64_t OffsetInSection,
- const std::vector<RelocationRef> &Rels);
-
- void printUnwindInfo(
- const Win64EH::UnwindInfo& UI,
- uint64_t OffsetInSection,
- const std::vector<RelocationRef> &Rels);
-
- void printUnwindCode(const Win64EH::UnwindInfo& UI, ArrayRef<UnwindCode> UCs);
+ void printCodeViewLineTables(const SectionRef &Section);
void cacheRelocations();
- error_code getSectionContents(
- const std::vector<RelocationRef> &Rels,
- uint64_t Offset,
- ArrayRef<uint8_t> &Contents,
- uint64_t &Addr);
-
- error_code getSection(
- const std::vector<RelocationRef> &Rels,
- uint64_t Offset,
- const coff_section **Section,
- uint64_t *AddrPtr);
+ std::error_code resolveSymbol(const coff_section *Section, uint64_t Offset,
+ SymbolRef &Sym);
+ std::error_code resolveSymbolName(const coff_section *Section,
+ uint64_t Offset, StringRef &Name);
typedef DenseMap<const coff_section*, std::vector<RelocationRef> > RelocMapTy;
const llvm::object::COFFObjectFile *Obj;
RelocMapTy RelocMap;
- std::vector<RelocationRef> EmptyRelocs;
};
} // namespace
namespace llvm {
-error_code createCOFFDumper(const object::ObjectFile *Obj,
- StreamWriter& Writer,
- OwningPtr<ObjDumper> &Result) {
+std::error_code createCOFFDumper(const object::ObjectFile *Obj,
+ StreamWriter &Writer,
+ std::unique_ptr<ObjDumper> &Result) {
const COFFObjectFile *COFFObj = dyn_cast<COFFObjectFile>(Obj);
if (!COFFObj)
return readobj_error::unsupported_obj_file_format;
} // namespace llvm
-
-// Returns the name of the unwind code.
-static StringRef getUnwindCodeTypeName(uint8_t Code) {
- switch(Code) {
- default: llvm_unreachable("Invalid unwind code");
- case UOP_PushNonVol: return "PUSH_NONVOL";
- case UOP_AllocLarge: return "ALLOC_LARGE";
- case UOP_AllocSmall: return "ALLOC_SMALL";
- case UOP_SetFPReg: return "SET_FPREG";
- case UOP_SaveNonVol: return "SAVE_NONVOL";
- case UOP_SaveNonVolBig: return "SAVE_NONVOL_FAR";
- case UOP_SaveXMM128: return "SAVE_XMM128";
- case UOP_SaveXMM128Big: return "SAVE_XMM128_FAR";
- case UOP_PushMachFrame: return "PUSH_MACHFRAME";
- }
-}
-
-// Returns the name of a referenced register.
-static StringRef getUnwindRegisterName(uint8_t Reg) {
- switch(Reg) {
- default: llvm_unreachable("Invalid register");
- case 0: return "RAX";
- case 1: return "RCX";
- case 2: return "RDX";
- case 3: return "RBX";
- case 4: return "RSP";
- case 5: return "RBP";
- case 6: return "RSI";
- case 7: return "RDI";
- case 8: return "R8";
- case 9: return "R9";
- case 10: return "R10";
- case 11: return "R11";
- case 12: return "R12";
- case 13: return "R13";
- case 14: return "R14";
- case 15: return "R15";
- }
-}
-
-// Calculates the number of array slots required for the unwind code.
-static unsigned getNumUsedSlots(const UnwindCode &UnwindCode) {
- switch (UnwindCode.getUnwindOp()) {
- default: llvm_unreachable("Invalid unwind code");
- case UOP_PushNonVol:
- case UOP_AllocSmall:
- case UOP_SetFPReg:
- case UOP_PushMachFrame:
- return 1;
- case UOP_SaveNonVol:
- case UOP_SaveXMM128:
- return 2;
- case UOP_SaveNonVolBig:
- case UOP_SaveXMM128Big:
- return 3;
- case UOP_AllocLarge:
- return (UnwindCode.getOpInfo() == 0) ? 2 : 3;
- }
-}
-
-// Given a symbol sym this functions returns the address and section of it.
-static error_code resolveSectionAndAddress(const COFFObjectFile *Obj,
- const SymbolRef &Sym,
- const coff_section *&ResolvedSection,
- uint64_t &ResolvedAddr) {
- if (error_code EC = Sym.getAddress(ResolvedAddr))
- return EC;
-
- section_iterator iter(Obj->begin_sections());
- if (error_code EC = Sym.getSection(iter))
- return EC;
-
- ResolvedSection = Obj->getCOFFSection(iter);
- return object_error::success;
-}
-
-// Given a vector of relocations for a section and an offset into this section
-// the function returns the symbol used for the relocation at the offset.
-static error_code resolveSymbol(const std::vector<RelocationRef> &Rels,
- uint64_t Offset, SymbolRef &Sym) {
- for (std::vector<RelocationRef>::const_iterator RelI = Rels.begin(),
- RelE = Rels.end();
- RelI != RelE; ++RelI) {
- uint64_t Ofs;
- if (error_code EC = RelI->getOffset(Ofs))
+// Given a a section and an offset into this section the function returns the
+// symbol used for the relocation at the offset.
+std::error_code COFFDumper::resolveSymbol(const coff_section *Section,
+ uint64_t Offset, SymbolRef &Sym) {
+ const auto &Relocations = RelocMap[Section];
+ for (const auto &Relocation : Relocations) {
+ uint64_t RelocationOffset;
+ if (std::error_code EC = Relocation.getOffset(RelocationOffset))
return EC;
- if (Ofs == Offset) {
- Sym = *RelI->getSymbol();
+ if (RelocationOffset == Offset) {
+ Sym = *Relocation.getSymbol();
return readobj_error::success;
}
}
-
return readobj_error::unknown_symbol;
}
-// Given a vector of relocations for a section and an offset into this section
-// the function returns the name of the symbol used for the relocation at the
-// offset.
-static error_code resolveSymbolName(const std::vector<RelocationRef> &Rels,
- uint64_t Offset, StringRef &Name) {
- SymbolRef Sym;
- if (error_code EC = resolveSymbol(Rels, Offset, Sym)) return EC;
- if (error_code EC = Sym.getName(Name)) return EC;
+// Given a section and an offset into this section the function returns the name
+// of the symbol used for the relocation at the offset.
+std::error_code COFFDumper::resolveSymbolName(const coff_section *Section,
+ uint64_t Offset,
+ StringRef &Name) {
+ SymbolRef Symbol;
+ if (std::error_code EC = resolveSymbol(Section, Offset, Symbol))
+ return EC;
+ if (std::error_code EC = Symbol.getName(Name))
+ return EC;
return object_error::success;
}
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AM33 ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AMD64 ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARM ),
- LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARMV7 ),
+ LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARMNT ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_EBC ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_I386 ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_IA64 ),
};
static const EnumEntry<COFF::DLLCharacteristics> PEDLLCharacteristics[] = {
+ LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY ),
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NX_COMPAT ),
{ "Alias" , COFF::IMAGE_WEAK_EXTERN_SEARCH_ALIAS }
};
-static const EnumEntry<unsigned> UnwindFlags[] = {
- { "ExceptionHandler", Win64EH::UNW_ExceptionHandler },
- { "TerminateHandler", Win64EH::UNW_TerminateHandler },
- { "ChainInfo" , Win64EH::UNW_ChainInfo }
-};
-
-static const EnumEntry<unsigned> UnwindOpInfo[] = {
- { "RAX", 0 },
- { "RCX", 1 },
- { "RDX", 2 },
- { "RBX", 3 },
- { "RSP", 4 },
- { "RBP", 5 },
- { "RSI", 6 },
- { "RDI", 7 },
- { "R8", 8 },
- { "R9", 9 },
- { "R10", 10 },
- { "R11", 11 },
- { "R12", 12 },
- { "R13", 13 },
- { "R14", 14 },
- { "R15", 15 }
-};
-
-// Some additional COFF structures not defined by llvm::object.
-namespace {
- struct coff_aux_function_definition {
- support::ulittle32_t TagIndex;
- support::ulittle32_t TotalSize;
- support::ulittle32_t PointerToLineNumber;
- support::ulittle32_t PointerToNextFunction;
- uint8_t Unused[2];
- };
-
- struct coff_aux_weak_external_definition {
- support::ulittle32_t TagIndex;
- support::ulittle32_t Characteristics;
- uint8_t Unused[10];
- };
-
- struct coff_aux_file_record {
- char FileName[18];
- };
-
- struct coff_aux_clr_token {
- support::ulittle8_t AuxType;
- support::ulittle8_t Reserved;
- support::ulittle32_t SymbolTableIndex;
- uint8_t Unused[12];
- };
-} // namespace
-
-static uint64_t getOffsetOfLSDA(const Win64EH::UnwindInfo& UI) {
- return static_cast<const char*>(UI.getLanguageSpecificData())
- - reinterpret_cast<const char*>(&UI);
-}
-
-static uint32_t getLargeSlotValue(ArrayRef<UnwindCode> UCs) {
- if (UCs.size() < 3)
- return 0;
-
- return UCs[1].FrameOffset + (static_cast<uint32_t>(UCs[2].FrameOffset) << 16);
-}
-
-template<typename T>
-static error_code getSymbolAuxData(const COFFObjectFile *Obj,
- const coff_symbol *Symbol, const T* &Aux) {
+template <typename T>
+static std::error_code getSymbolAuxData(const COFFObjectFile *Obj,
+ const coff_symbol *Symbol,
+ const T *&Aux) {
ArrayRef<uint8_t> AuxData = Obj->getSymbolAuxData(Symbol);
Aux = reinterpret_cast<const T*>(AuxData.data());
return readobj_error::success;
}
-static std::string formatSymbol(const std::vector<RelocationRef> &Rels,
- uint64_t Offset, uint32_t Disp) {
- std::string Buffer;
- raw_string_ostream Str(Buffer);
-
- StringRef Sym;
- if (resolveSymbolName(Rels, Offset, Sym)) {
- Str << format(" (0x%" PRIX64 ")", Offset);
- return Str.str();
- }
-
- Str << Sym;
- if (Disp > 0) {
- Str << format(" +0x%X (0x%" PRIX64 ")", Disp, Offset);
- } else {
- Str << format(" (0x%" PRIX64 ")", Offset);
- }
-
- return Str.str();
-}
-
-// Given a vector of relocations for a section and an offset into this section
-// the function resolves the symbol used for the relocation at the offset and
-// returns the section content and the address inside the content pointed to
-// by the symbol.
-error_code COFFDumper::getSectionContents(
- const std::vector<RelocationRef> &Rels, uint64_t Offset,
- ArrayRef<uint8_t> &Contents, uint64_t &Addr) {
-
- SymbolRef Sym;
- const coff_section *Section;
-
- if (error_code EC = resolveSymbol(Rels, Offset, Sym))
- return EC;
- if (error_code EC = resolveSectionAndAddress(Obj, Sym, Section, Addr))
- return EC;
- if (error_code EC = Obj->getSectionContents(Section, Contents))
- return EC;
-
- return object_error::success;
-}
-
-error_code COFFDumper::getSection(
- const std::vector<RelocationRef> &Rels, uint64_t Offset,
- const coff_section **SectionPtr, uint64_t *AddrPtr) {
-
- SymbolRef Sym;
- if (error_code EC = resolveSymbol(Rels, Offset, Sym))
- return EC;
-
- const coff_section *Section;
- uint64_t Addr;
- if (error_code EC = resolveSectionAndAddress(Obj, Sym, Section, Addr))
- return EC;
-
- if (SectionPtr)
- *SectionPtr = Section;
- if (AddrPtr)
- *AddrPtr = Addr;
-
- return object_error::success;
-}
-
void COFFDumper::cacheRelocations() {
- error_code EC;
- for (section_iterator SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; SecI.increment(EC)) {
- if (error(EC))
- break;
+ for (const SectionRef &S : Obj->sections()) {
+ const coff_section *Section = Obj->getCOFFSection(S);
- const coff_section *Section = Obj->getCOFFSection(SecI);
-
- for (relocation_iterator RelI = SecI->begin_relocations(),
- RelE = SecI->end_relocations();
- RelI != RelE; RelI.increment(EC)) {
- if (error(EC))
- break;
-
- RelocMap[Section].push_back(*RelI);
- }
+ for (const RelocationRef &Reloc : S.relocations())
+ RelocMap[Section].push_back(Reloc);
// Sort relocations by address.
std::sort(RelocMap[Section].begin(), RelocMap[Section].end(),
void COFFDumper::printFileHeaders() {
// Print COFF header
- const coff_file_header *COFFHeader = 0;
+ const coff_file_header *COFFHeader = nullptr;
if (error(Obj->getCOFFHeader(COFFHeader)))
return;
// Print PE header. This header does not exist if this is an object file and
// not an executable.
- const pe32_header *PEHeader = 0;
+ const pe32_header *PEHeader = nullptr;
if (error(Obj->getPE32Header(PEHeader)))
return;
+ if (PEHeader)
+ printPEHeader<pe32_header>(PEHeader);
- if (PEHeader) {
- DictScope D(W, "ImageOptionalHeader");
- W.printNumber("MajorLinkerVersion", PEHeader->MajorLinkerVersion);
- W.printNumber("MinorLinkerVersion", PEHeader->MinorLinkerVersion);
- W.printNumber("SizeOfCode", PEHeader->SizeOfCode);
- W.printNumber("SizeOfInitializedData", PEHeader->SizeOfInitializedData);
- W.printNumber("SizeOfUninitializedData", PEHeader->SizeOfUninitializedData);
- W.printHex ("AddressOfEntryPoint", PEHeader->AddressOfEntryPoint);
- W.printHex ("BaseOfCode", PEHeader->BaseOfCode);
- W.printHex ("BaseOfData", PEHeader->BaseOfData);
- W.printHex ("ImageBase", PEHeader->ImageBase);
- W.printNumber("SectionAlignment", PEHeader->SectionAlignment);
- W.printNumber("FileAlignment", PEHeader->FileAlignment);
- W.printNumber("MajorOperatingSystemVersion",
- PEHeader->MajorOperatingSystemVersion);
- W.printNumber("MinorOperatingSystemVersion",
- PEHeader->MinorOperatingSystemVersion);
- W.printNumber("MajorImageVersion", PEHeader->MajorImageVersion);
- W.printNumber("MinorImageVersion", PEHeader->MinorImageVersion);
- W.printNumber("MajorSubsystemVersion", PEHeader->MajorSubsystemVersion);
- W.printNumber("MinorSubsystemVersion", PEHeader->MinorSubsystemVersion);
- W.printNumber("SizeOfImage", PEHeader->SizeOfImage);
- W.printNumber("SizeOfHeaders", PEHeader->SizeOfHeaders);
- W.printEnum ("Subsystem", PEHeader->Subsystem,
- makeArrayRef(PEWindowsSubsystem));
- W.printFlags ("Subsystem", PEHeader->DLLCharacteristics,
- makeArrayRef(PEDLLCharacteristics));
- W.printNumber("SizeOfStackReserve", PEHeader->SizeOfStackReserve);
- W.printNumber("SizeOfStackCommit", PEHeader->SizeOfStackCommit);
- W.printNumber("SizeOfHeapReserve", PEHeader->SizeOfHeapReserve);
- W.printNumber("SizeOfHeapCommit", PEHeader->SizeOfHeapCommit);
- W.printNumber("NumberOfRvaAndSize", PEHeader->NumberOfRvaAndSize);
-
- if (PEHeader->NumberOfRvaAndSize > 0) {
- DictScope D(W, "DataDirectory");
- static const char * const directory[] = {
- "ExportTable", "ImportTable", "ResourceTable", "ExceptionTable",
- "CertificateTable", "BaseRelocationTable", "Debug", "Architecture",
- "GlobalPtr", "TLSTable", "LoadConfigTable", "BoundImport", "IAT",
- "DelayImportDescriptor", "CLRRuntimeHeader", "Reserved"
- };
-
- for (uint32_t i = 0; i < PEHeader->NumberOfRvaAndSize; ++i) {
- printDataDirectory(i, directory[i]);
+ const pe32plus_header *PEPlusHeader = nullptr;
+ if (error(Obj->getPE32PlusHeader(PEPlusHeader)))
+ return;
+ if (PEPlusHeader)
+ printPEHeader<pe32plus_header>(PEPlusHeader);
+}
+
+template <class PEHeader>
+void COFFDumper::printPEHeader(const PEHeader *Hdr) {
+ DictScope D(W, "ImageOptionalHeader");
+ W.printNumber("MajorLinkerVersion", Hdr->MajorLinkerVersion);
+ W.printNumber("MinorLinkerVersion", Hdr->MinorLinkerVersion);
+ W.printNumber("SizeOfCode", Hdr->SizeOfCode);
+ W.printNumber("SizeOfInitializedData", Hdr->SizeOfInitializedData);
+ W.printNumber("SizeOfUninitializedData", Hdr->SizeOfUninitializedData);
+ W.printHex ("AddressOfEntryPoint", Hdr->AddressOfEntryPoint);
+ W.printHex ("BaseOfCode", Hdr->BaseOfCode);
+ printBaseOfDataField(Hdr);
+ W.printHex ("ImageBase", Hdr->ImageBase);
+ W.printNumber("SectionAlignment", Hdr->SectionAlignment);
+ W.printNumber("FileAlignment", Hdr->FileAlignment);
+ W.printNumber("MajorOperatingSystemVersion",
+ Hdr->MajorOperatingSystemVersion);
+ W.printNumber("MinorOperatingSystemVersion",
+ Hdr->MinorOperatingSystemVersion);
+ W.printNumber("MajorImageVersion", Hdr->MajorImageVersion);
+ W.printNumber("MinorImageVersion", Hdr->MinorImageVersion);
+ W.printNumber("MajorSubsystemVersion", Hdr->MajorSubsystemVersion);
+ W.printNumber("MinorSubsystemVersion", Hdr->MinorSubsystemVersion);
+ W.printNumber("SizeOfImage", Hdr->SizeOfImage);
+ W.printNumber("SizeOfHeaders", Hdr->SizeOfHeaders);
+ W.printEnum ("Subsystem", Hdr->Subsystem, makeArrayRef(PEWindowsSubsystem));
+ W.printFlags ("Subsystem", Hdr->DLLCharacteristics,
+ makeArrayRef(PEDLLCharacteristics));
+ W.printNumber("SizeOfStackReserve", Hdr->SizeOfStackReserve);
+ W.printNumber("SizeOfStackCommit", Hdr->SizeOfStackCommit);
+ W.printNumber("SizeOfHeapReserve", Hdr->SizeOfHeapReserve);
+ W.printNumber("SizeOfHeapCommit", Hdr->SizeOfHeapCommit);
+ W.printNumber("NumberOfRvaAndSize", Hdr->NumberOfRvaAndSize);
+
+ if (Hdr->NumberOfRvaAndSize > 0) {
+ DictScope D(W, "DataDirectory");
+ static const char * const directory[] = {
+ "ExportTable", "ImportTable", "ResourceTable", "ExceptionTable",
+ "CertificateTable", "BaseRelocationTable", "Debug", "Architecture",
+ "GlobalPtr", "TLSTable", "LoadConfigTable", "BoundImport", "IAT",
+ "DelayImportDescriptor", "CLRRuntimeHeader", "Reserved"
+ };
+
+ for (uint32_t i = 0; i < Hdr->NumberOfRvaAndSize; ++i) {
+ printDataDirectory(i, directory[i]);
+ }
+ }
+}
+
+void COFFDumper::printBaseOfDataField(const pe32_header *Hdr) {
+ W.printHex("BaseOfData", Hdr->BaseOfData);
+}
+
+void COFFDumper::printBaseOfDataField(const pe32plus_header *) {}
+
+void COFFDumper::printCodeViewLineTables(const SectionRef &Section) {
+ StringRef Data;
+ if (error(Section.getContents(Data)))
+ return;
+
+ SmallVector<StringRef, 10> FunctionNames;
+ StringMap<StringRef> FunctionLineTables;
+ StringRef FileIndexToStringOffsetTable;
+ StringRef StringTable;
+
+ ListScope D(W, "CodeViewLineTables");
+ {
+ DataExtractor DE(Data, true, 4);
+ uint32_t Offset = 0,
+ Magic = DE.getU32(&Offset);
+ W.printHex("Magic", Magic);
+ if (Magic != COFF::DEBUG_SECTION_MAGIC) {
+ error(object_error::parse_failed);
+ return;
+ }
+
+ bool Finished = false;
+ while (DE.isValidOffset(Offset) && !Finished) {
+ // The section consists of a number of subsection in the following format:
+ // |Type|PayloadSize|Payload...|
+ uint32_t SubSectionType = DE.getU32(&Offset),
+ PayloadSize = DE.getU32(&Offset);
+ ListScope S(W, "Subsection");
+ W.printHex("Type", SubSectionType);
+ W.printHex("PayloadSize", PayloadSize);
+ if (PayloadSize > Data.size() - Offset) {
+ error(object_error::parse_failed);
+ return;
+ }
+
+ // Print the raw contents to simplify debugging if anything goes wrong
+ // afterwards.
+ StringRef Contents = Data.substr(Offset, PayloadSize);
+ W.printBinaryBlock("Contents", Contents);
+
+ switch (SubSectionType) {
+ case COFF::DEBUG_LINE_TABLE_SUBSECTION: {
+ // Holds a PC to file:line table. Some data to parse this subsection is
+ // stored in the other subsections, so just check sanity and store the
+ // pointers for deferred processing.
+
+ if (PayloadSize < 12) {
+ // There should be at least three words to store two function
+ // relocations and size of the code.
+ error(object_error::parse_failed);
+ return;
+ }
+
+ StringRef FunctionName;
+ if (error(resolveSymbolName(Obj->getCOFFSection(Section), Offset,
+ FunctionName)))
+ return;
+ W.printString("FunctionName", FunctionName);
+ if (FunctionLineTables.count(FunctionName) != 0) {
+ // Saw debug info for this function already?
+ error(object_error::parse_failed);
+ return;
+ }
+
+ FunctionLineTables[FunctionName] = Contents;
+ FunctionNames.push_back(FunctionName);
+ break;
+ }
+ case COFF::DEBUG_STRING_TABLE_SUBSECTION:
+ if (PayloadSize == 0 || StringTable.data() != nullptr ||
+ Contents.back() != '\0') {
+ // Empty or duplicate or non-null-terminated subsection.
+ error(object_error::parse_failed);
+ return;
+ }
+ StringTable = Contents;
+ break;
+ case COFF::DEBUG_INDEX_SUBSECTION:
+ // Holds the translation table from file indices
+ // to offsets in the string table.
+
+ if (PayloadSize == 0 ||
+ FileIndexToStringOffsetTable.data() != nullptr) {
+ // Empty or duplicate subsection.
+ error(object_error::parse_failed);
+ return;
+ }
+ FileIndexToStringOffsetTable = Contents;
+ break;
+ }
+ Offset += PayloadSize;
+
+ // Align the reading pointer by 4.
+ Offset += (-Offset) % 4;
+ }
+ }
+
+ // Dump the line tables now that we've read all the subsections and know all
+ // the required information.
+ for (unsigned I = 0, E = FunctionNames.size(); I != E; ++I) {
+ StringRef Name = FunctionNames[I];
+ ListScope S(W, "FunctionLineTable");
+ W.printString("FunctionName", Name);
+
+ DataExtractor DE(FunctionLineTables[Name], true, 4);
+ uint32_t Offset = 8; // Skip relocations.
+ uint32_t FunctionSize = DE.getU32(&Offset);
+ W.printHex("CodeSize", FunctionSize);
+ while (DE.isValidOffset(Offset)) {
+ // For each range of lines with the same filename, we have a segment
+ // in the line table. The filename string is accessed using double
+ // indirection to the string table subsection using the index subsection.
+ uint32_t OffsetInIndex = DE.getU32(&Offset),
+ SegmentLength = DE.getU32(&Offset),
+ FullSegmentSize = DE.getU32(&Offset);
+ if (FullSegmentSize != 12 + 8 * SegmentLength) {
+ error(object_error::parse_failed);
+ return;
+ }
+
+ uint32_t FilenameOffset;
+ {
+ DataExtractor SDE(FileIndexToStringOffsetTable, true, 4);
+ uint32_t OffsetInSDE = OffsetInIndex;
+ if (!SDE.isValidOffset(OffsetInSDE)) {
+ error(object_error::parse_failed);
+ return;
+ }
+ FilenameOffset = SDE.getU32(&OffsetInSDE);
+ }
+
+ if (FilenameOffset == 0 || FilenameOffset + 1 >= StringTable.size() ||
+ StringTable.data()[FilenameOffset - 1] != '\0') {
+ // Each string in an F3 subsection should be preceded by a null
+ // character.
+ error(object_error::parse_failed);
+ return;
+ }
+
+ StringRef Filename(StringTable.data() + FilenameOffset);
+ ListScope S(W, "FilenameSegment");
+ W.printString("Filename", Filename);
+ for (unsigned J = 0; J != SegmentLength && DE.isValidOffset(Offset);
+ ++J) {
+ // Then go the (PC, LineNumber) pairs. The line number is stored in the
+ // least significant 31 bits of the respective word in the table.
+ uint32_t PC = DE.getU32(&Offset),
+ LineNumber = DE.getU32(&Offset) & 0x7fffffff;
+ if (PC >= FunctionSize) {
+ error(object_error::parse_failed);
+ return;
+ }
+ char Buffer[32];
+ format("+0x%X", PC).snprint(Buffer, 32);
+ W.printNumber(Buffer, LineNumber);
}
}
}
}
void COFFDumper::printSections() {
- error_code EC;
-
ListScope SectionsD(W, "Sections");
int SectionNumber = 0;
- for (section_iterator SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; SecI.increment(EC)) {
- if (error(EC))
- break;
-
+ for (const SectionRef &Sec : Obj->sections()) {
++SectionNumber;
- const coff_section *Section = Obj->getCOFFSection(SecI);
+ const coff_section *Section = Obj->getCOFFSection(Sec);
StringRef Name;
- if (error(SecI->getName(Name)))
- Name = "";
+ if (error(Sec.getName(Name)))
+ Name = "";
DictScope D(W, "Section");
W.printNumber("Number", SectionNumber);
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);
- }
+ for (const RelocationRef &Reloc : Sec.relocations())
+ printRelocation(Sec, Reloc);
}
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;
-
+ for (const SymbolRef &Symbol : Obj->symbols()) {
bool Contained = false;
- if (SecI->containsSymbol(*SymI, Contained) || !Contained)
+ if (Sec.containsSymbol(Symbol, Contained) || !Contained)
continue;
- printSymbol(SymI);
+ printSymbol(Symbol);
}
}
+ if (Name == ".debug$S" && opts::CodeViewLineTables)
+ printCodeViewLineTables(Sec);
+
if (opts::SectionData) {
StringRef Data;
- if (error(SecI->getContents(Data))) break;
+ if (error(Sec.getContents(Data)))
+ break;
W.printBinaryBlock("SectionData", Data);
}
void COFFDumper::printRelocations() {
ListScope D(W, "Relocations");
- error_code EC;
int SectionNumber = 0;
- for (section_iterator SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; SecI.increment(EC)) {
+ for (const SectionRef &Section : Obj->sections()) {
++SectionNumber;
- if (error(EC))
- break;
-
StringRef Name;
- if (error(SecI->getName(Name)))
+ if (error(Section.getName(Name)))
continue;
bool PrintedGroup = false;
- for (relocation_iterator RelI = SecI->begin_relocations(),
- RelE = SecI->end_relocations();
- RelI != RelE; RelI.increment(EC)) {
- if (error(EC)) break;
-
+ for (const RelocationRef &Reloc : Section.relocations()) {
if (!PrintedGroup) {
W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
W.indent();
PrintedGroup = true;
}
- printRelocation(SecI, RelI);
+ printRelocation(Section, Reloc);
}
if (PrintedGroup) {
}
}
-void COFFDumper::printRelocation(section_iterator SecI,
- relocation_iterator RelI) {
+void COFFDumper::printRelocation(const SectionRef &Section,
+ const RelocationRef &Reloc) {
uint64_t Offset;
uint64_t RelocType;
SmallString<32> RelocName;
StringRef SymbolName;
StringRef Contents;
- if (error(RelI->getOffset(Offset))) return;
- if (error(RelI->getType(RelocType))) return;
- if (error(RelI->getTypeName(RelocName))) return;
- symbol_iterator Symbol = RelI->getSymbol();
- if (error(Symbol->getName(SymbolName))) return;
- if (error(SecI->getContents(Contents))) return;
+ if (error(Reloc.getOffset(Offset)))
+ return;
+ if (error(Reloc.getType(RelocType)))
+ return;
+ if (error(Reloc.getTypeName(RelocName)))
+ return;
+ symbol_iterator Symbol = Reloc.getSymbol();
+ if (error(Symbol->getName(SymbolName)))
+ return;
+ if (error(Section.getContents(Contents)))
+ return;
if (opts::ExpandRelocs) {
DictScope Group(W, "Relocation");
void COFFDumper::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;
-
- printSymbol(SymI);
- }
+ for (const SymbolRef &Symbol : Obj->symbols())
+ printSymbol(Symbol);
}
-void COFFDumper::printDynamicSymbols() {
- ListScope Group(W, "DynamicSymbols");
-}
+void COFFDumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); }
-void COFFDumper::printSymbol(symbol_iterator SymI) {
+void COFFDumper::printSymbol(const SymbolRef &Sym) {
DictScope D(W, "Symbol");
- const coff_symbol *Symbol = Obj->getCOFFSymbol(SymI);
+ const coff_symbol *Symbol = Obj->getCOFFSymbol(Sym);
const coff_section *Section;
- if (error_code EC = Obj->getSection(Symbol->SectionNumber, Section)) {
+ if (std::error_code EC = Obj->getSection(Symbol->SectionNumber, Section)) {
W.startLine() << "Invalid section number: " << EC.message() << "\n";
W.flush();
return;
W.printNumber("AuxSymbolCount", Symbol->NumberOfAuxSymbols);
for (unsigned I = 0; I < Symbol->NumberOfAuxSymbols; ++I) {
- if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- Symbol->getBaseType() == COFF::IMAGE_SYM_TYPE_NULL &&
- Symbol->getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION &&
- Symbol->SectionNumber > 0) {
+ if (Symbol->isFunctionDefinition()) {
const coff_aux_function_definition *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
DictScope AS(W, "AuxFunctionDef");
W.printNumber("TagIndex", Aux->TagIndex);
W.printNumber("TotalSize", Aux->TotalSize);
- W.printHex("PointerToLineNumber", Aux->PointerToLineNumber);
+ W.printHex("PointerToLineNumber", Aux->PointerToLinenumber);
W.printHex("PointerToNextFunction", Aux->PointerToNextFunction);
W.printBinary("Unused", makeArrayRef(Aux->Unused));
- } else if (
- Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL ||
- (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- Symbol->SectionNumber == 0 &&
- Symbol->Value == 0)) {
- const coff_aux_weak_external_definition *Aux;
+ } else if (Symbol->isWeakExternal()) {
+ const coff_aux_weak_external *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
const coff_symbol *Linked;
StringRef LinkedName;
- error_code EC;
+ std::error_code EC;
if ((EC = Obj->getSymbol(Aux->TagIndex, Linked)) ||
(EC = Obj->getSymbolName(Linked, LinkedName))) {
LinkedName = "";
W.printNumber("Linked", LinkedName, Aux->TagIndex);
W.printEnum ("Search", Aux->Characteristics,
makeArrayRef(WeakExternalCharacteristics));
- W.printBinary("Unused", Aux->Unused);
+ W.printBinary("Unused", makeArrayRef(Aux->Unused));
- } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_FILE) {
- const coff_aux_file_record *Aux;
+ } else if (Symbol->isFileRecord()) {
+ const coff_aux_file *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
DictScope AS(W, "AuxFileRecord");
- W.printString("FileName", StringRef(Aux->FileName));
- } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC ||
- (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- Symbol->SectionNumber != COFF::IMAGE_SYM_UNDEFINED)) {
+ StringRef Name(Aux->FileName,
+ Symbol->NumberOfAuxSymbols * COFF::SymbolSize);
+ W.printString("FileName", Name.rtrim(StringRef("\0", 1)));
+ break;
+ } else if (Symbol->isSectionDefinition()) {
const coff_aux_section_definition *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
&& Aux->Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
const coff_section *Assoc;
StringRef AssocName;
- error_code EC;
+ std::error_code EC;
if ((EC = Obj->getSection(Aux->Number, Assoc)) ||
(EC = Obj->getSectionName(Assoc, AssocName))) {
AssocName = "";
W.printNumber("AssocSection", AssocName, Aux->Number);
}
- } else if (Symbol->StorageClass == COFF::IMAGE_SYM_CLASS_CLR_TOKEN) {
+ } else if (Symbol->isCLRToken()) {
const coff_aux_clr_token *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
+ const coff_symbol *ReferredSym;
+ StringRef ReferredName;
+ std::error_code EC;
+ if ((EC = Obj->getSymbol(Aux->SymbolTableIndex, ReferredSym)) ||
+ (EC = Obj->getSymbolName(ReferredSym, ReferredName))) {
+ ReferredName = "";
+ error(EC);
+ }
+
DictScope AS(W, "AuxCLRToken");
W.printNumber("AuxType", Aux->AuxType);
W.printNumber("Reserved", Aux->Reserved);
- W.printNumber("SymbolTableIndex", Aux->SymbolTableIndex);
- W.printBinary("Unused", Aux->Unused);
+ W.printNumber("SymbolTableIndex", ReferredName, Aux->SymbolTableIndex);
+ W.printBinary("Unused", makeArrayRef(Aux->Unused));
} else {
W.startLine() << "<unhandled auxiliary record>\n";
return;
ListScope D(W, "UnwindInformation");
- if (Header->Machine != COFF::IMAGE_FILE_MACHINE_AMD64) {
- W.startLine() << "Unsupported image machine type "
- "(currently only AMD64 is supported).\n";
- return;
- }
-
- printX64UnwindInfo();
-}
-
-void COFFDumper::printX64UnwindInfo() {
- error_code EC;
- for (section_iterator SecI = Obj->begin_sections(),
- SecE = Obj->end_sections();
- SecI != SecE; SecI.increment(EC)) {
- if (error(EC)) break;
-
- StringRef Name;
- if (error(SecI->getName(Name)))
- continue;
- if (Name != ".pdata" && !Name.startswith(".pdata$"))
- continue;
-
- const coff_section *PData = Obj->getCOFFSection(SecI);
-
- ArrayRef<uint8_t> Contents;
- if (error(Obj->getSectionContents(PData, Contents)) ||
- Contents.empty())
- continue;
-
- ArrayRef<RuntimeFunction> RFs(
- reinterpret_cast<const RuntimeFunction *>(Contents.data()),
- Contents.size() / sizeof(RuntimeFunction));
-
- for (const RuntimeFunction *I = RFs.begin(), *E = RFs.end(); I < E; ++I) {
- const uint64_t OffsetInSection = std::distance(RFs.begin(), I)
- * sizeof(RuntimeFunction);
-
- printRuntimeFunction(*I, OffsetInSection, RelocMap[PData]);
- }
- }
-}
-
-void COFFDumper::printRuntimeFunction(
- const RuntimeFunction& RTF,
- uint64_t OffsetInSection,
- const std::vector<RelocationRef> &Rels) {
-
- DictScope D(W, "RuntimeFunction");
- W.printString("StartAddress",
- formatSymbol(Rels, OffsetInSection + 0, RTF.StartAddress));
- W.printString("EndAddress",
- formatSymbol(Rels, OffsetInSection + 4, RTF.EndAddress));
- W.printString("UnwindInfoAddress",
- formatSymbol(Rels, OffsetInSection + 8, RTF.UnwindInfoOffset));
-
- const coff_section* XData = 0;
- uint64_t UnwindInfoOffset = 0;
- if (error(getSection(Rels, OffsetInSection + 8, &XData, &UnwindInfoOffset)))
- return;
-
- ArrayRef<uint8_t> XContents;
- if (error(Obj->getSectionContents(XData, XContents)) || XContents.empty())
- return;
-
- UnwindInfoOffset += RTF.UnwindInfoOffset;
- if (UnwindInfoOffset > XContents.size())
- return;
-
- const Win64EH::UnwindInfo *UI =
- reinterpret_cast<const Win64EH::UnwindInfo *>(
- XContents.data() + UnwindInfoOffset);
-
- printUnwindInfo(*UI, UnwindInfoOffset, RelocMap[XData]);
-}
-
-void COFFDumper::printUnwindInfo(
- const Win64EH::UnwindInfo& UI,
- uint64_t OffsetInSection,
- const std::vector<RelocationRef> &Rels) {
- DictScope D(W, "UnwindInfo");
- W.printNumber("Version", UI.getVersion());
- W.printFlags("Flags", UI.getFlags(), makeArrayRef(UnwindFlags));
- W.printNumber("PrologSize", UI.PrologSize);
- if (UI.getFrameRegister() != 0) {
- W.printEnum("FrameRegister", UI.getFrameRegister(),
- makeArrayRef(UnwindOpInfo));
- W.printHex("FrameOffset", UI.getFrameOffset());
- } else {
- W.printString("FrameRegister", StringRef("-"));
- W.printString("FrameOffset", StringRef("-"));
- }
-
- W.printNumber("UnwindCodeCount", UI.NumCodes);
- {
- ListScope CodesD(W, "UnwindCodes");
- ArrayRef<UnwindCode> UCs(&UI.UnwindCodes[0], UI.NumCodes);
- for (const UnwindCode *I = UCs.begin(), *E = UCs.end(); I < E; ++I) {
- unsigned UsedSlots = getNumUsedSlots(*I);
- if (UsedSlots > UCs.size()) {
- errs() << "Corrupt unwind data";
- return;
- }
- printUnwindCode(UI, ArrayRef<UnwindCode>(I, E));
- I += UsedSlots - 1;
- }
- }
-
- uint64_t LSDAOffset = OffsetInSection + getOffsetOfLSDA(UI);
- if (UI.getFlags() & (UNW_ExceptionHandler | UNW_TerminateHandler)) {
- W.printString("Handler", formatSymbol(Rels, LSDAOffset,
- UI.getLanguageSpecificHandlerOffset()));
- } else if (UI.getFlags() & UNW_ChainInfo) {
- const RuntimeFunction *Chained = UI.getChainedFunctionEntry();
- if (Chained) {
- DictScope D(W, "Chained");
- W.printString("StartAddress", formatSymbol(Rels, LSDAOffset + 0,
- Chained->StartAddress));
- W.printString("EndAddress", formatSymbol(Rels, LSDAOffset + 4,
- Chained->EndAddress));
- W.printString("UnwindInfoAddress", formatSymbol(Rels, LSDAOffset + 8,
- Chained->UnwindInfoOffset));
- }
- }
-}
-
-// Prints one unwind code. Because an unwind code can occupy up to 3 slots in
-// the unwind codes array, this function requires that the correct number of
-// slots is provided.
-void COFFDumper::printUnwindCode(const Win64EH::UnwindInfo& UI,
- ArrayRef<UnwindCode> UCs) {
- assert(UCs.size() >= getNumUsedSlots(UCs[0]));
-
- W.startLine() << format("0x%02X: ", unsigned(UCs[0].u.CodeOffset))
- << getUnwindCodeTypeName(UCs[0].getUnwindOp());
-
- uint32_t AllocSize = 0;
-
- switch (UCs[0].getUnwindOp()) {
- case UOP_PushNonVol:
- outs() << " reg=" << getUnwindRegisterName(UCs[0].getOpInfo());
+ switch (Header->Machine) {
+ case COFF::IMAGE_FILE_MACHINE_AMD64: {
+ Win64EH::Dumper Dumper(W);
+ Win64EH::Dumper::SymbolResolver
+ Resolver = [](const object::coff_section *Section, uint64_t Offset,
+ SymbolRef &Symbol, void *user_data) -> std::error_code {
+ COFFDumper *Dumper = reinterpret_cast<COFFDumper *>(user_data);
+ return Dumper->resolveSymbol(Section, Offset, Symbol);
+ };
+ Win64EH::Dumper::Context Ctx(*Obj, Resolver, this);
+ Dumper.printData(Ctx);
break;
-
- case UOP_AllocLarge:
- if (UCs[0].getOpInfo() == 0) {
- AllocSize = UCs[1].FrameOffset * 8;
- } else {
- AllocSize = getLargeSlotValue(UCs);
- }
- outs() << " size=" << AllocSize;
- break;
- case UOP_AllocSmall:
- outs() << " size=" << ((UCs[0].getOpInfo() + 1) * 8);
- break;
- case UOP_SetFPReg:
- if (UI.getFrameRegister() == 0) {
- outs() << " reg=<invalid>";
- } else {
- outs() << " reg=" << getUnwindRegisterName(UI.getFrameRegister())
- << format(", offset=0x%X", UI.getFrameOffset() * 16);
- }
- break;
- case UOP_SaveNonVol:
- outs() << " reg=" << getUnwindRegisterName(UCs[0].getOpInfo())
- << format(", offset=0x%X", UCs[1].FrameOffset * 8);
- break;
- case UOP_SaveNonVolBig:
- outs() << " reg=" << getUnwindRegisterName(UCs[0].getOpInfo())
- << format(", offset=0x%X", getLargeSlotValue(UCs));
- break;
- case UOP_SaveXMM128:
- outs() << " reg=XMM" << static_cast<uint32_t>(UCs[0].getOpInfo())
- << format(", offset=0x%X", UCs[1].FrameOffset * 16);
- break;
- case UOP_SaveXMM128Big:
- outs() << " reg=XMM" << static_cast<uint32_t>(UCs[0].getOpInfo())
- << format(", offset=0x%X", getLargeSlotValue(UCs));
+ }
+ case COFF::IMAGE_FILE_MACHINE_ARMNT: {
+ ARM::WinEH::Decoder Decoder(W);
+ Decoder.dumpProcedureData(*Obj);
break;
- case UOP_PushMachFrame:
- outs() << " errcode=" << (UCs[0].getOpInfo() == 0 ? "no" : "yes");
+ }
+ default:
+ W.printEnum("unsupported Image Machine", Header->Machine,
+ makeArrayRef(ImageFileMachineType));
break;
}
-
- outs() << "\n";
}
+
projects / oota-llvm.git / blobdiff