#include "Win64EHDumper.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/COFF.h"
void printDynamicSymbols() override;
void printUnwindInfo() override;
void printCOFFImports() override;
+ void printCOFFExports() override;
+ void printCOFFDirectives() override;
+ void printCOFFBaseReloc() override;
private:
void printSymbol(const SymbolRef &Sym);
void printRelocation(const SectionRef &Section, const RelocationRef &Reloc);
void printDataDirectory(uint32_t Index, const std::string &FieldName);
+ void printDOSHeader(const dos_header *DH);
template <class PEHeader> void printPEHeader(const PEHeader *Hdr);
void printBaseOfDataField(const pe32_header *Hdr);
void printBaseOfDataField(const pe32plus_header *Hdr);
- void printCodeViewLineTables(const SectionRef &Section);
+ void printCodeViewDebugInfo(const SectionRef &Section);
+
+ void printCodeViewSymbolsSubsection(StringRef Subsection,
+ const SectionRef &Section,
+ uint32_t Offset);
void cacheRelocations();
SymbolRef &Sym);
std::error_code resolveSymbolName(const coff_section *Section,
uint64_t Offset, StringRef &Name);
-
- void printImportedSymbols(imported_symbol_iterator I,
- imported_symbol_iterator E);
+ void printImportedSymbols(iterator_range<imported_symbol_iterator> Range);
+ void printDelayImportedSymbols(
+ const DelayImportDirectoryEntryRef &I,
+ iterator_range<imported_symbol_iterator> Range);
typedef DenseMap<const coff_section*, std::vector<RelocationRef> > RelocMapTy;
const llvm::object::COFFObjectFile *Obj;
RelocMapTy RelocMap;
+ StringRef CVFileIndexToStringOffsetTable;
+ StringRef CVStringTable;
};
} // namespace
return;
if (PEPlusHeader)
printPEHeader<pe32plus_header>(PEPlusHeader);
+
+ if (const dos_header *DH = Obj->getDOSHeader())
+ printDOSHeader(DH);
+}
+
+void COFFDumper::printDOSHeader(const dos_header *DH) {
+ DictScope D(W, "DOSHeader");
+ W.printString("Magic", StringRef(DH->Magic, sizeof(DH->Magic)));
+ W.printNumber("UsedBytesInTheLastPage", DH->UsedBytesInTheLastPage);
+ W.printNumber("FileSizeInPages", DH->FileSizeInPages);
+ W.printNumber("NumberOfRelocationItems", DH->NumberOfRelocationItems);
+ W.printNumber("HeaderSizeInParagraphs", DH->HeaderSizeInParagraphs);
+ W.printNumber("MinimumExtraParagraphs", DH->MinimumExtraParagraphs);
+ W.printNumber("MaximumExtraParagraphs", DH->MaximumExtraParagraphs);
+ W.printNumber("InitialRelativeSS", DH->InitialRelativeSS);
+ W.printNumber("InitialSP", DH->InitialSP);
+ W.printNumber("Checksum", DH->Checksum);
+ W.printNumber("InitialIP", DH->InitialIP);
+ W.printNumber("InitialRelativeCS", DH->InitialRelativeCS);
+ W.printNumber("AddressOfRelocationTable", DH->AddressOfRelocationTable);
+ W.printNumber("OverlayNumber", DH->OverlayNumber);
+ W.printNumber("OEMid", DH->OEMid);
+ W.printNumber("OEMinfo", DH->OEMinfo);
+ W.printNumber("AddressOfNewExeHeader", DH->AddressOfNewExeHeader);
}
template <class PEHeader>
W.printNumber("SizeOfImage", Hdr->SizeOfImage);
W.printNumber("SizeOfHeaders", Hdr->SizeOfHeaders);
W.printEnum ("Subsystem", Hdr->Subsystem, makeArrayRef(PEWindowsSubsystem));
- W.printFlags ("Subsystem", Hdr->DLLCharacteristics,
+ W.printFlags ("Characteristics", Hdr->DLLCharacteristics,
makeArrayRef(PEDLLCharacteristics));
W.printNumber("SizeOfStackReserve", Hdr->SizeOfStackReserve);
W.printNumber("SizeOfStackCommit", Hdr->SizeOfStackCommit);
void COFFDumper::printBaseOfDataField(const pe32plus_header *) {}
-void COFFDumper::printCodeViewLineTables(const SectionRef &Section) {
+void COFFDumper::printCodeViewDebugInfo(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");
+ ListScope D(W, "CodeViewDebugInfo");
{
+ // FIXME: Add more offset correctness checks.
DataExtractor DE(Data, true, 4);
uint32_t Offset = 0,
Magic = DE.getU32(&Offset);
return;
}
- // Print the raw contents to simplify debugging if anything goes wrong
- // afterwards.
StringRef Contents = Data.substr(Offset, PayloadSize);
- W.printBinaryBlock("Contents", Contents);
+ if (opts::CodeViewSubsectionBytes) {
+ // Print the raw contents to simplify debugging if anything goes wrong
+ // afterwards.
+ W.printBinaryBlock("Contents", Contents);
+ }
switch (SubSectionType) {
+ case COFF::DEBUG_SYMBOL_SUBSECTION:
+ if (opts::SectionSymbols)
+ printCodeViewSymbolsSubsection(Contents, Section, Offset);
+ break;
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
break;
}
case COFF::DEBUG_STRING_TABLE_SUBSECTION:
- if (PayloadSize == 0 || StringTable.data() != nullptr ||
+ if (PayloadSize == 0 || CVStringTable.data() != nullptr ||
Contents.back() != '\0') {
// Empty or duplicate or non-null-terminated subsection.
error(object_error::parse_failed);
return;
}
- StringTable = Contents;
+ CVStringTable = 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) {
+ CVFileIndexToStringOffsetTable.data() != nullptr) {
// Empty or duplicate subsection.
error(object_error::parse_failed);
return;
}
- FileIndexToStringOffsetTable = Contents;
+ CVFileIndexToStringOffsetTable = Contents;
break;
}
Offset += PayloadSize;
uint32_t FilenameOffset;
{
- DataExtractor SDE(FileIndexToStringOffsetTable, true, 4);
+ DataExtractor SDE(CVFileIndexToStringOffsetTable, true, 4);
uint32_t OffsetInSDE = OffsetInIndex;
if (!SDE.isValidOffset(OffsetInSDE)) {
error(object_error::parse_failed);
FilenameOffset = SDE.getU32(&OffsetInSDE);
}
- if (FilenameOffset == 0 || FilenameOffset + 1 >= StringTable.size() ||
- StringTable.data()[FilenameOffset - 1] != '\0') {
+ if (FilenameOffset == 0 || FilenameOffset + 1 >= CVStringTable.size() ||
+ CVStringTable.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);
+ StringRef Filename(CVStringTable.data() + FilenameOffset);
ListScope S(W, "FilenameSegment");
W.printString("Filename", Filename);
for (unsigned J = 0; J != SegmentLength && DE.isValidOffset(Offset);
}
}
+void COFFDumper::printCodeViewSymbolsSubsection(StringRef Subsection,
+ const SectionRef &Section,
+ uint32_t OffsetInSection) {
+ if (Subsection.size() == 0) {
+ error(object_error::parse_failed);
+ return;
+ }
+ DataExtractor DE(Subsection, true, 4);
+ uint32_t Offset = 0;
+
+ // Function-level subsections have "procedure start" and "procedure end"
+ // commands that should come in pairs and surround relevant info.
+ bool InFunctionScope = false;
+ while (DE.isValidOffset(Offset)) {
+ // Read subsection segments one by one.
+ uint16_t Size = DE.getU16(&Offset);
+ // The section size includes the size of the type identifier.
+ if (Size < 2 || !DE.isValidOffsetForDataOfSize(Offset, Size)) {
+ error(object_error::parse_failed);
+ return;
+ }
+ Size -= 2;
+ uint16_t Type = DE.getU16(&Offset);
+ switch (Type) {
+ case COFF::DEBUG_SYMBOL_TYPE_PROC_START: {
+ DictScope S(W, "ProcStart");
+ if (InFunctionScope || Size < 36) {
+ error(object_error::parse_failed);
+ return;
+ }
+ InFunctionScope = true;
+
+ // We're currently interested in a limited subset of fields in this
+ // segment, just ignore the rest of the fields for now.
+ uint8_t Unused[12];
+ DE.getU8(&Offset, Unused, 12);
+ uint32_t CodeSize = DE.getU32(&Offset);
+ DE.getU8(&Offset, Unused, 12);
+ StringRef SectionName;
+ if (error(resolveSymbolName(Obj->getCOFFSection(Section),
+ OffsetInSection + Offset, SectionName)))
+ return;
+ Offset += 4;
+ DE.getU8(&Offset, Unused, 3);
+ StringRef DisplayName = DE.getCStr(&Offset);
+ if (!DE.isValidOffset(Offset)) {
+ error(object_error::parse_failed);
+ return;
+ }
+ W.printString("DisplayName", DisplayName);
+ W.printString("Section", SectionName);
+ W.printHex("CodeSize", CodeSize);
+
+ break;
+ }
+ case COFF::DEBUG_SYMBOL_TYPE_PROC_END: {
+ W.startLine() << "ProcEnd\n";
+ if (!InFunctionScope || Size > 0) {
+ error(object_error::parse_failed);
+ return;
+ }
+ InFunctionScope = false;
+ break;
+ }
+ default: {
+ if (opts::CodeViewSubsectionBytes) {
+ ListScope S(W, "Record");
+ W.printHex("Size", Size);
+ W.printHex("Type", Type);
+
+ StringRef Contents = DE.getData().substr(Offset, Size);
+ W.printBinaryBlock("Contents", Contents);
+ }
+
+ Offset += Size;
+ break;
+ }
+ }
+ }
+
+ if (InFunctionScope)
+ error(object_error::parse_failed);
+}
+
void COFFDumper::printSections() {
ListScope SectionsD(W, "Sections");
int SectionNumber = 0;
if (opts::SectionSymbols) {
ListScope D(W, "Symbols");
for (const SymbolRef &Symbol : Obj->symbols()) {
- bool Contained = false;
- if (Sec.containsSymbol(Symbol, Contained) || !Contained)
+ if (!Sec.containsSymbol(Symbol))
continue;
printSymbol(Symbol);
}
}
- if (Name == ".debug$S" && opts::CodeViewLineTables)
- printCodeViewLineTables(Sec);
+ if (Name == ".debug$S" && opts::CodeView)
+ printCodeViewDebugInfo(Sec);
if (opts::SectionData &&
!(Section->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)) {
uint64_t RelocType;
SmallString<32> RelocName;
StringRef SymbolName;
- StringRef Contents;
if (error(Reloc.getOffset(Offset)))
return;
if (error(Reloc.getType(RelocType)))
if (error(Reloc.getTypeName(RelocName)))
return;
symbol_iterator Symbol = Reloc.getSymbol();
- if (error(Symbol->getName(SymbolName)))
- return;
- if (error(Section.getContents(Contents)))
+ if (Symbol != Obj->symbol_end() && error(Symbol->getName(SymbolName)))
return;
if (opts::ExpandRelocs) {
DictScope Group(W, "Relocation");
W.printHex("Offset", Offset);
W.printNumber("Type", RelocName, RelocType);
- W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
+ W.printString("Symbol", SymbolName.empty() ? "-" : SymbolName);
} else {
raw_ostream& OS = W.startLine();
OS << W.hex(Offset)
<< " " << RelocName
- << " " << (SymbolName.size() > 0 ? SymbolName : "-")
+ << " " << (SymbolName.empty() ? "-" : SymbolName)
<< "\n";
}
}
void COFFDumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); }
-static StringRef getSectionName(const llvm::object::COFFObjectFile *Obj,
- COFFSymbolRef Symbol,
- const coff_section *Section) {
+static ErrorOr<StringRef>
+getSectionName(const llvm::object::COFFObjectFile *Obj, int32_t SectionNumber,
+ const coff_section *Section) {
if (Section) {
StringRef SectionName;
- Obj->getSectionName(Section, SectionName);
+ if (std::error_code EC = Obj->getSectionName(Section, SectionName))
+ return EC;
return SectionName;
}
- int32_t SectionNumber = Symbol.getSectionNumber();
if (SectionNumber == llvm::COFF::IMAGE_SYM_DEBUG)
- return "IMAGE_SYM_DEBUG";
+ return StringRef("IMAGE_SYM_DEBUG");
if (SectionNumber == llvm::COFF::IMAGE_SYM_ABSOLUTE)
- return "IMAGE_SYM_ABSOLUTE";
+ return StringRef("IMAGE_SYM_ABSOLUTE");
if (SectionNumber == llvm::COFF::IMAGE_SYM_UNDEFINED)
- return "IMAGE_SYM_UNDEFINED";
- return "";
+ return StringRef("IMAGE_SYM_UNDEFINED");
+ return StringRef("");
}
void COFFDumper::printSymbol(const SymbolRef &Sym) {
if (Obj->getSymbolName(Symbol, SymbolName))
SymbolName = "";
- StringRef SectionName = getSectionName(Obj, Symbol, Section);
+ StringRef SectionName = "";
+ ErrorOr<StringRef> Res =
+ getSectionName(Obj, Symbol.getSectionNumber(), Section);
+ if (Res)
+ SectionName = *Res;
W.printString("Name", SymbolName);
W.printNumber("Value", Symbol.getValue());
W.printHex("PointerToLineNumber", Aux->PointerToLinenumber);
W.printHex("PointerToNextFunction", Aux->PointerToNextFunction);
- } else if (Symbol.isWeakExternal()) {
+ } else if (Symbol.isAnyUndefined()) {
const coff_aux_weak_external *Aux;
if (error(getSymbolAuxData(Obj, Symbol, I, Aux)))
break;
if (Section && Section->Characteristics & COFF::IMAGE_SCN_LNK_COMDAT
&& Aux->Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) {
const coff_section *Assoc;
- StringRef AssocName;
- std::error_code EC;
- if ((EC = Obj->getSection(AuxNumber, Assoc)) ||
- (EC = Obj->getSectionName(Assoc, AssocName))) {
+ StringRef AssocName = "";
+ std::error_code EC = Obj->getSection(AuxNumber, Assoc);
+ ErrorOr<StringRef> Res = getSectionName(Obj, AuxNumber, Assoc);
+ if (Res)
+ AssocName = *Res;
+ if (!EC)
+ EC = Res.getError();
+ if (EC) {
AssocName = "";
error(EC);
}
}
}
-void COFFDumper::printImportedSymbols(imported_symbol_iterator I,
- imported_symbol_iterator E) {
- for (; I != E; ++I) {
+void COFFDumper::printImportedSymbols(
+ iterator_range<imported_symbol_iterator> Range) {
+ for (const ImportedSymbolRef &I : Range) {
StringRef Sym;
- if (error(I->getSymbolName(Sym))) return;
+ if (error(I.getSymbolName(Sym))) return;
uint16_t Ordinal;
- if (error(I->getOrdinal(Ordinal))) return;
+ if (error(I.getOrdinal(Ordinal))) return;
W.printNumber("Symbol", Sym, Ordinal);
}
}
+void COFFDumper::printDelayImportedSymbols(
+ const DelayImportDirectoryEntryRef &I,
+ iterator_range<imported_symbol_iterator> Range) {
+ int Index = 0;
+ for (const ImportedSymbolRef &S : Range) {
+ DictScope Import(W, "Import");
+ StringRef Sym;
+ if (error(S.getSymbolName(Sym))) return;
+ uint16_t Ordinal;
+ if (error(S.getOrdinal(Ordinal))) return;
+ W.printNumber("Symbol", Sym, Ordinal);
+ uint64_t Addr;
+ if (error(I.getImportAddress(Index++, Addr))) return;
+ W.printHex("Address", Addr);
+ }
+}
+
void COFFDumper::printCOFFImports() {
// Regular imports
- for (auto I = Obj->import_directory_begin(), E = Obj->import_directory_end();
- I != E; ++I) {
+ for (const ImportDirectoryEntryRef &I : Obj->import_directories()) {
DictScope Import(W, "Import");
StringRef Name;
- if (error(I->getName(Name))) return;
+ if (error(I.getName(Name))) return;
W.printString("Name", Name);
uint32_t Addr;
- if (error(I->getImportLookupTableRVA(Addr))) return;
+ if (error(I.getImportLookupTableRVA(Addr))) return;
W.printHex("ImportLookupTableRVA", Addr);
- if (error(I->getImportAddressTableRVA(Addr))) return;
+ if (error(I.getImportAddressTableRVA(Addr))) return;
W.printHex("ImportAddressTableRVA", Addr);
- printImportedSymbols(I->imported_symbol_begin(), I->imported_symbol_end());
+ printImportedSymbols(I.imported_symbols());
}
// Delay imports
- for (auto I = Obj->delay_import_directory_begin(),
- E = Obj->delay_import_directory_end();
- I != E; ++I) {
+ for (const DelayImportDirectoryEntryRef &I : Obj->delay_import_directories()) {
DictScope Import(W, "DelayImport");
StringRef Name;
- if (error(I->getName(Name))) return;
+ if (error(I.getName(Name))) return;
W.printString("Name", Name);
const delay_import_directory_table_entry *Table;
- if (error(I->getDelayImportTable(Table))) return;
+ if (error(I.getDelayImportTable(Table))) return;
W.printHex("Attributes", Table->Attributes);
W.printHex("ModuleHandle", Table->ModuleHandle);
W.printHex("ImportAddressTable", Table->DelayImportAddressTable);
W.printHex("ImportNameTable", Table->DelayImportNameTable);
W.printHex("BoundDelayImportTable", Table->BoundDelayImportTable);
W.printHex("UnloadDelayImportTable", Table->UnloadDelayImportTable);
- printImportedSymbols(I->imported_symbol_begin(), I->imported_symbol_end());
+ printDelayImportedSymbols(I, I.imported_symbols());
+ }
+}
+
+void COFFDumper::printCOFFExports() {
+ for (const ExportDirectoryEntryRef &E : Obj->export_directories()) {
+ DictScope Export(W, "Export");
+
+ StringRef Name;
+ uint32_t Ordinal, RVA;
+
+ if (error(E.getSymbolName(Name)))
+ continue;
+ if (error(E.getOrdinal(Ordinal)))
+ continue;
+ if (error(E.getExportRVA(RVA)))
+ continue;
+
+ W.printNumber("Ordinal", Ordinal);
+ W.printString("Name", Name);
+ W.printHex("RVA", RVA);
+ }
+}
+
+void COFFDumper::printCOFFDirectives() {
+ for (const SectionRef &Section : Obj->sections()) {
+ StringRef Contents;
+ StringRef Name;
+
+ if (error(Section.getName(Name)))
+ continue;
+ if (Name != ".drectve")
+ continue;
+
+ if (error(Section.getContents(Contents)))
+ return;
+
+ W.printString("Directive(s)", Contents);
+ }
+}
+
+static StringRef getBaseRelocTypeName(uint8_t Type) {
+ switch (Type) {
+ case COFF::IMAGE_REL_BASED_ABSOLUTE: return "ABSOLUTE";
+ case COFF::IMAGE_REL_BASED_HIGH: return "HIGH";
+ case COFF::IMAGE_REL_BASED_LOW: return "LOW";
+ case COFF::IMAGE_REL_BASED_HIGHLOW: return "HIGHLOW";
+ case COFF::IMAGE_REL_BASED_HIGHADJ: return "HIGHADJ";
+ case COFF::IMAGE_REL_BASED_ARM_MOV32T: return "ARM_MOV32(T)";
+ case COFF::IMAGE_REL_BASED_DIR64: return "DIR64";
+ default: return "unknown (" + llvm::utostr(Type) + ")";
+ }
+}
+
+void COFFDumper::printCOFFBaseReloc() {
+ ListScope D(W, "BaseReloc");
+ for (const BaseRelocRef &I : Obj->base_relocs()) {
+ uint8_t Type;
+ uint32_t RVA;
+ if (error(I.getRVA(RVA)))
+ continue;
+ if (error(I.getType(Type)))
+ continue;
+ DictScope Import(W, "Entry");
+ W.printString("Type", getBaseRelocTypeName(Type));
+ W.printHex("Address", RVA);
}
}
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