diff options
Diffstat (limited to 'tools/llvm-objdump/llvm-objdump.cpp')
| -rw-r--r-- | tools/llvm-objdump/llvm-objdump.cpp | 385 |
1 files changed, 205 insertions, 180 deletions
diff --git a/tools/llvm-objdump/llvm-objdump.cpp b/tools/llvm-objdump/llvm-objdump.cpp index 9bc092e..729fcba 100644 --- a/tools/llvm-objdump/llvm-objdump.cpp +++ b/tools/llvm-objdump/llvm-objdump.cpp @@ -17,7 +17,6 @@ //===----------------------------------------------------------------------===// #include "llvm-objdump.h" -#include "llvm/ADT/OwningPtr.h" #include "llvm/ADT/STLExtras.h" #include "llvm/ADT/StringExtras.h" #include "llvm/ADT/Triple.h" @@ -149,10 +148,11 @@ YAMLCFG("yaml-cfg", static StringRef ToolName; -bool llvm::error(error_code ec) { - if (!ec) return false; +bool llvm::error(error_code EC) { + if (!EC) + return false; - outs() << ToolName << ": error reading file: " << ec.message() << ".\n"; + outs() << ToolName << ": error reading file: " << EC.message() << ".\n"; outs().flush(); return true; } @@ -166,7 +166,7 @@ static const Target *getTarget(const ObjectFile *Obj = NULL) { // TheTriple defaults to ELF, and COFF doesn't have an environment: // the best we can do here is indicate that it is mach-o. if (Obj->isMachO()) - TheTriple.setEnvironment(Triple::MachO); + TheTriple.setObjectFormat(Triple::MachO); } } else TheTriple.setTriple(Triple::normalize(TripleName)); @@ -191,7 +191,7 @@ static void emitDOTFile(const char *FileName, const MCFunction &f, MCInstPrinter *IP) { // Start a new dot file. std::string Error; - raw_fd_ostream Out(FileName, Error); + raw_fd_ostream Out(FileName, Error, sys::fs::F_Text); if (!Error.empty()) { errs() << "llvm-objdump: warning: " << Error << '\n'; return; @@ -281,60 +281,62 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { FeaturesStr = Features.getString(); } - OwningPtr<const MCRegisterInfo> MRI(TheTarget->createMCRegInfo(TripleName)); + std::unique_ptr<const MCRegisterInfo> MRI( + TheTarget->createMCRegInfo(TripleName)); if (!MRI) { errs() << "error: no register info for target " << TripleName << "\n"; return; } // Set up disassembler. - OwningPtr<const MCAsmInfo> AsmInfo( - TheTarget->createMCAsmInfo(*MRI, TripleName)); + std::unique_ptr<const MCAsmInfo> AsmInfo( + TheTarget->createMCAsmInfo(*MRI, TripleName)); if (!AsmInfo) { errs() << "error: no assembly info for target " << TripleName << "\n"; return; } - OwningPtr<const MCSubtargetInfo> STI( - TheTarget->createMCSubtargetInfo(TripleName, "", FeaturesStr)); + std::unique_ptr<const MCSubtargetInfo> STI( + TheTarget->createMCSubtargetInfo(TripleName, "", FeaturesStr)); if (!STI) { errs() << "error: no subtarget info for target " << TripleName << "\n"; return; } - OwningPtr<const MCInstrInfo> MII(TheTarget->createMCInstrInfo()); + std::unique_ptr<const MCInstrInfo> MII(TheTarget->createMCInstrInfo()); if (!MII) { errs() << "error: no instruction info for target " << TripleName << "\n"; return; } - OwningPtr<MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI)); + std::unique_ptr<MCDisassembler> DisAsm(TheTarget->createMCDisassembler(*STI)); if (!DisAsm) { errs() << "error: no disassembler for target " << TripleName << "\n"; return; } - OwningPtr<const MCObjectFileInfo> MOFI; - OwningPtr<MCContext> Ctx; + std::unique_ptr<const MCObjectFileInfo> MOFI; + std::unique_ptr<MCContext> Ctx; if (Symbolize) { MOFI.reset(new MCObjectFileInfo); Ctx.reset(new MCContext(AsmInfo.get(), MRI.get(), MOFI.get())); - OwningPtr<MCRelocationInfo> RelInfo( - TheTarget->createMCRelocationInfo(TripleName, *Ctx.get())); + std::unique_ptr<MCRelocationInfo> RelInfo( + TheTarget->createMCRelocationInfo(TripleName, *Ctx.get())); if (RelInfo) { - OwningPtr<MCSymbolizer> Symzer( - MCObjectSymbolizer::createObjectSymbolizer(*Ctx.get(), RelInfo, Obj)); + std::unique_ptr<MCSymbolizer> Symzer( + MCObjectSymbolizer::createObjectSymbolizer(*Ctx.get(), + std::move(RelInfo), Obj)); if (Symzer) - DisAsm->setSymbolizer(Symzer); + DisAsm->setSymbolizer(std::move(Symzer)); } } - OwningPtr<const MCInstrAnalysis> - MIA(TheTarget->createMCInstrAnalysis(MII.get())); + std::unique_ptr<const MCInstrAnalysis> MIA( + TheTarget->createMCInstrAnalysis(MII.get())); int AsmPrinterVariant = AsmInfo->getAssemblerDialect(); - OwningPtr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( + std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter( AsmPrinterVariant, *AsmInfo, *MII, *MRI, *STI)); if (!IP) { errs() << "error: no instruction printer for target " << TripleName @@ -343,9 +345,9 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { } if (CFG || !YAMLCFG.empty()) { - OwningPtr<MCObjectDisassembler> OD( - new MCObjectDisassembler(*Obj, *DisAsm, *MIA)); - OwningPtr<MCModule> Mod(OD->buildModule(/* withCFG */ true)); + std::unique_ptr<MCObjectDisassembler> OD( + new MCObjectDisassembler(*Obj, *DisAsm, *MIA)); + std::unique_ptr<MCModule> Mod(OD->buildModule(/* withCFG */ true)); for (MCModule::const_atom_iterator AI = Mod->atom_begin(), AE = Mod->atom_end(); AI != AE; ++AI) { @@ -372,7 +374,7 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { } if (!YAMLCFG.empty()) { std::string Error; - raw_fd_ostream YAMLOut(YAMLCFG.c_str(), Error); + raw_fd_ostream YAMLOut(YAMLCFG.c_str(), Error, sys::fs::F_Text); if (!Error.empty()) { errs() << ToolName << ": warning: " << Error << '\n'; return; @@ -381,33 +383,51 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { } } + StringRef Fmt = Obj->getBytesInAddress() > 4 ? "\t\t%016" PRIx64 ": " : + "\t\t\t%08" PRIx64 ": "; + + // Create a mapping, RelocSecs = SectionRelocMap[S], where sections + // in RelocSecs contain the relocations for section S. + error_code EC; + std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap; + for (const SectionRef &Section : Obj->sections()) { + section_iterator Sec2 = Section.getRelocatedSection(); + if (Sec2 != Obj->section_end()) + SectionRelocMap[*Sec2].push_back(Section); + } - error_code ec; - for (section_iterator i = Obj->begin_sections(), - e = Obj->end_sections(); - i != e; i.increment(ec)) { - if (error(ec)) break; - bool text; - if (error(i->isText(text))) break; - if (!text) continue; + for (const SectionRef &Section : Obj->sections()) { + bool Text; + if (error(Section.isText(Text))) + break; + if (!Text) + continue; uint64_t SectionAddr; - if (error(i->getAddress(SectionAddr))) break; + if (error(Section.getAddress(SectionAddr))) + break; + + uint64_t SectSize; + if (error(Section.getSize(SectSize))) + break; // Make a list of all the symbols in this section. - std::vector<std::pair<uint64_t, StringRef> > Symbols; - for (symbol_iterator si = Obj->begin_symbols(), - se = Obj->end_symbols(); - si != se; si.increment(ec)) { + std::vector<std::pair<uint64_t, StringRef>> Symbols; + for (const SymbolRef &Symbol : Obj->symbols()) { bool contains; - if (!error(i->containsSymbol(*si, contains)) && contains) { + if (!error(Section.containsSymbol(Symbol, contains)) && contains) { uint64_t Address; - if (error(si->getAddress(Address))) break; - if (Address == UnknownAddressOrSize) continue; + if (error(Symbol.getAddress(Address))) + break; + if (Address == UnknownAddressOrSize) + continue; Address -= SectionAddr; + if (Address >= SectSize) + continue; StringRef Name; - if (error(si->getName(Name))) break; + if (error(Symbol.getName(Name))) + break; Symbols.push_back(std::make_pair(Address, Name)); } } @@ -418,11 +438,10 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { // Make a list of all the relocations for this section. std::vector<RelocationRef> Rels; if (InlineRelocs) { - for (relocation_iterator ri = i->begin_relocations(), - re = i->end_relocations(); - ri != re; ri.increment(ec)) { - if (error(ec)) break; - Rels.push_back(*ri); + for (const SectionRef &RelocSec : SectionRelocMap[Section]) { + for (const RelocationRef &Reloc : RelocSec.relocations()) { + Rels.push_back(Reloc); + } } } @@ -430,13 +449,13 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { std::sort(Rels.begin(), Rels.end(), RelocAddressLess); StringRef SegmentName = ""; - if (const MachOObjectFile *MachO = - dyn_cast<const MachOObjectFile>(Obj)) { - DataRefImpl DR = i->getRawDataRefImpl(); + if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(Obj)) { + DataRefImpl DR = Section.getRawDataRefImpl(); SegmentName = MachO->getSectionFinalSegmentName(DR); } StringRef name; - if (error(i->getName(name))) break; + if (error(Section.getName(name))) + break; outs() << "Disassembly of section "; if (!SegmentName.empty()) outs() << SegmentName << ","; @@ -452,12 +471,11 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { raw_svector_ostream CommentStream(Comments); StringRef Bytes; - if (error(i->getContents(Bytes))) break; + if (error(Section.getContents(Bytes))) + break; StringRefMemoryObject memoryObject(Bytes, SectionAddr); uint64_t Size; uint64_t Index; - uint64_t SectSize; - if (error(i->getSize(SectSize))) break; std::vector<RelocationRef>::const_iterator rel_cur = Rels.begin(); std::vector<RelocationRef>::const_iterator rel_end = Rels.end(); @@ -479,9 +497,9 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { outs() << '\n' << Symbols[si].second << ":\n"; #ifndef NDEBUG - raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); + raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls(); #else - raw_ostream &DebugOut = nulls(); + raw_ostream &DebugOut = nulls(); #endif for (Index = Start; Index < End; Index += Size) { @@ -522,7 +540,7 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { if (error(rel_cur->getTypeName(name))) goto skip_print_rel; if (error(rel_cur->getValueString(val))) goto skip_print_rel; - outs() << format("\t\t\t%8" PRIx64 ": ", SectionAddr + addr) << name + outs() << format(Fmt.data(), SectionAddr + addr) << name << "\t" << val << "\n"; skip_print_rel: @@ -533,76 +551,82 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { } } -static void PrintRelocations(const ObjectFile *o) { - error_code ec; - for (section_iterator si = o->begin_sections(), se = o->end_sections(); - si != se; si.increment(ec)){ - if (error(ec)) return; - if (si->begin_relocations() == si->end_relocations()) +static void PrintRelocations(const ObjectFile *Obj) { + StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 : + "%08" PRIx64; + for (const SectionRef &Section : Obj->sections()) { + if (Section.relocation_begin() == Section.relocation_end()) continue; StringRef secname; - if (error(si->getName(secname))) continue; + if (error(Section.getName(secname))) + continue; outs() << "RELOCATION RECORDS FOR [" << secname << "]:\n"; - for (relocation_iterator ri = si->begin_relocations(), - re = si->end_relocations(); - ri != re; ri.increment(ec)) { - if (error(ec)) return; - + for (const RelocationRef &Reloc : Section.relocations()) { bool hidden; uint64_t address; SmallString<32> relocname; SmallString<32> valuestr; - if (error(ri->getHidden(hidden))) continue; - if (hidden) continue; - if (error(ri->getTypeName(relocname))) continue; - if (error(ri->getOffset(address))) continue; - if (error(ri->getValueString(valuestr))) continue; - outs() << address << " " << relocname << " " << valuestr << "\n"; + if (error(Reloc.getHidden(hidden))) + continue; + if (hidden) + continue; + if (error(Reloc.getTypeName(relocname))) + continue; + if (error(Reloc.getOffset(address))) + continue; + if (error(Reloc.getValueString(valuestr))) + continue; + outs() << format(Fmt.data(), address) << " " << relocname << " " + << valuestr << "\n"; } outs() << "\n"; } } -static void PrintSectionHeaders(const ObjectFile *o) { +static void PrintSectionHeaders(const ObjectFile *Obj) { outs() << "Sections:\n" "Idx Name Size Address Type\n"; - error_code ec; unsigned i = 0; - for (section_iterator si = o->begin_sections(), se = o->end_sections(); - si != se; si.increment(ec)) { - if (error(ec)) return; + for (const SectionRef &Section : Obj->sections()) { StringRef Name; - if (error(si->getName(Name))) return; + if (error(Section.getName(Name))) + return; uint64_t Address; - if (error(si->getAddress(Address))) return; + if (error(Section.getAddress(Address))) + return; uint64_t Size; - if (error(si->getSize(Size))) return; + if (error(Section.getSize(Size))) + return; bool Text, Data, BSS; - if (error(si->isText(Text))) return; - if (error(si->isData(Data))) return; - if (error(si->isBSS(BSS))) return; + if (error(Section.isText(Text))) + return; + if (error(Section.isData(Data))) + return; + if (error(Section.isBSS(BSS))) + return; std::string Type = (std::string(Text ? "TEXT " : "") + (Data ? "DATA " : "") + (BSS ? "BSS" : "")); - outs() << format("%3d %-13s %08" PRIx64 " %016" PRIx64 " %s\n", - i, Name.str().c_str(), Size, Address, Type.c_str()); + outs() << format("%3d %-13s %08" PRIx64 " %016" PRIx64 " %s\n", i, + Name.str().c_str(), Size, Address, Type.c_str()); ++i; } } -static void PrintSectionContents(const ObjectFile *o) { - error_code ec; - for (section_iterator si = o->begin_sections(), - se = o->end_sections(); - si != se; si.increment(ec)) { - if (error(ec)) return; +static void PrintSectionContents(const ObjectFile *Obj) { + error_code EC; + for (const SectionRef &Section : Obj->sections()) { StringRef Name; StringRef Contents; uint64_t BaseAddr; bool BSS; - if (error(si->getName(Name))) continue; - if (error(si->getContents(Contents))) continue; - if (error(si->getAddress(BaseAddr))) continue; - if (error(si->isBSS(BSS))) continue; + if (error(Section.getName(Name))) + continue; + if (error(Section.getContents(Contents))) + continue; + if (error(Section.getAddress(BaseAddr))) + continue; + if (error(Section.isBSS(BSS))) + continue; outs() << "Contents of section " << Name << ":\n"; if (BSS) { @@ -646,8 +670,7 @@ static void PrintCOFFSymbolTable(const COFFObjectFile *coff) { for (int i = 0, e = header->NumberOfSymbols; i != e; ++i) { if (aux_count--) { // Figure out which type of aux this is. - if (symbol->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC - && symbol->Value == 0) { // Section definition. + if (symbol->isSectionDefinition()) { // Section definition. const coff_aux_section_definition *asd; if (error(coff->getAuxSymbol<coff_aux_section_definition>(i, asd))) return; @@ -682,78 +705,79 @@ static void PrintCOFFSymbolTable(const COFFObjectFile *coff) { static void PrintSymbolTable(const ObjectFile *o) { outs() << "SYMBOL TABLE:\n"; - if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) + if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) { PrintCOFFSymbolTable(coff); - else { - error_code ec; - for (symbol_iterator si = o->begin_symbols(), - se = o->end_symbols(); si != se; si.increment(ec)) { - if (error(ec)) return; - StringRef Name; - uint64_t Address; - SymbolRef::Type Type; - uint64_t Size; - uint32_t Flags; - section_iterator Section = o->end_sections(); - if (error(si->getName(Name))) continue; - if (error(si->getAddress(Address))) continue; - if (error(si->getFlags(Flags))) continue; - if (error(si->getType(Type))) continue; - if (error(si->getSize(Size))) continue; - if (error(si->getSection(Section))) continue; - - bool Global = Flags & SymbolRef::SF_Global; - bool Weak = Flags & SymbolRef::SF_Weak; - bool Absolute = Flags & SymbolRef::SF_Absolute; - - if (Address == UnknownAddressOrSize) - Address = 0; - if (Size == UnknownAddressOrSize) - Size = 0; - char GlobLoc = ' '; - if (Type != SymbolRef::ST_Unknown) - GlobLoc = Global ? 'g' : 'l'; - char Debug = (Type == SymbolRef::ST_Debug || Type == SymbolRef::ST_File) - ? 'd' : ' '; - char FileFunc = ' '; - if (Type == SymbolRef::ST_File) - FileFunc = 'f'; - else if (Type == SymbolRef::ST_Function) - FileFunc = 'F'; - - const char *Fmt = o->getBytesInAddress() > 4 ? "%016" PRIx64 : - "%08" PRIx64; - - outs() << format(Fmt, Address) << " " - << GlobLoc // Local -> 'l', Global -> 'g', Neither -> ' ' - << (Weak ? 'w' : ' ') // Weak? - << ' ' // Constructor. Not supported yet. - << ' ' // Warning. Not supported yet. - << ' ' // Indirect reference to another symbol. - << Debug // Debugging (d) or dynamic (D) symbol. - << FileFunc // Name of function (F), file (f) or object (O). - << ' '; - if (Absolute) - outs() << "*ABS*"; - else if (Section == o->end_sections()) - outs() << "*UND*"; - else { - if (const MachOObjectFile *MachO = - dyn_cast<const MachOObjectFile>(o)) { - DataRefImpl DR = Section->getRawDataRefImpl(); - StringRef SegmentName = MachO->getSectionFinalSegmentName(DR); - outs() << SegmentName << ","; - } - StringRef SectionName; - if (error(Section->getName(SectionName))) - SectionName = ""; - outs() << SectionName; + return; + } + for (const SymbolRef &Symbol : o->symbols()) { + StringRef Name; + uint64_t Address; + SymbolRef::Type Type; + uint64_t Size; + uint32_t Flags = Symbol.getFlags(); + section_iterator Section = o->section_end(); + if (error(Symbol.getName(Name))) + continue; + if (error(Symbol.getAddress(Address))) + continue; + if (error(Symbol.getType(Type))) + continue; + if (error(Symbol.getSize(Size))) + continue; + if (error(Symbol.getSection(Section))) + continue; + + bool Global = Flags & SymbolRef::SF_Global; + bool Weak = Flags & SymbolRef::SF_Weak; + bool Absolute = Flags & SymbolRef::SF_Absolute; + + if (Address == UnknownAddressOrSize) + Address = 0; + if (Size == UnknownAddressOrSize) + Size = 0; + char GlobLoc = ' '; + if (Type != SymbolRef::ST_Unknown) + GlobLoc = Global ? 'g' : 'l'; + char Debug = (Type == SymbolRef::ST_Debug || Type == SymbolRef::ST_File) + ? 'd' : ' '; + char FileFunc = ' '; + if (Type == SymbolRef::ST_File) + FileFunc = 'f'; + else if (Type == SymbolRef::ST_Function) + FileFunc = 'F'; + + const char *Fmt = o->getBytesInAddress() > 4 ? "%016" PRIx64 : + "%08" PRIx64; + + outs() << format(Fmt, Address) << " " + << GlobLoc // Local -> 'l', Global -> 'g', Neither -> ' ' + << (Weak ? 'w' : ' ') // Weak? + << ' ' // Constructor. Not supported yet. + << ' ' // Warning. Not supported yet. + << ' ' // Indirect reference to another symbol. + << Debug // Debugging (d) or dynamic (D) symbol. + << FileFunc // Name of function (F), file (f) or object (O). + << ' '; + if (Absolute) { + outs() << "*ABS*"; + } else if (Section == o->section_end()) { + outs() << "*UND*"; + } else { + if (const MachOObjectFile *MachO = + dyn_cast<const MachOObjectFile>(o)) { + DataRefImpl DR = Section->getRawDataRefImpl(); + StringRef SegmentName = MachO->getSectionFinalSegmentName(DR); + outs() << SegmentName << ","; } - outs() << '\t' - << format("%08" PRIx64 " ", Size) - << Name - << '\n'; + StringRef SectionName; + if (error(Section->getName(SectionName))) + SectionName = ""; + outs() << SectionName; } + outs() << '\t' + << format("%08" PRIx64 " ", Size) + << Name + << '\n'; } } @@ -801,13 +825,13 @@ static void DumpObject(const ObjectFile *o) { /// @brief Dump each object file in \a a; static void DumpArchive(const Archive *a) { - for (Archive::child_iterator i = a->begin_children(), - e = a->end_children(); i != e; ++i) { - OwningPtr<Binary> child; - if (error_code ec = i->getAsBinary(child)) { + for (Archive::child_iterator i = a->child_begin(), e = a->child_end(); i != e; + ++i) { + std::unique_ptr<Binary> child; + if (error_code EC = i->getAsBinary(child)) { // Ignore non-object files. - if (ec != object_error::invalid_file_type) - errs() << ToolName << ": '" << a->getFileName() << "': " << ec.message() + if (EC != object_error::invalid_file_type) + errs() << ToolName << ": '" << a->getFileName() << "': " << EC.message() << ".\n"; continue; } @@ -833,11 +857,12 @@ static void DumpInput(StringRef file) { } // Attempt to open the binary. - OwningPtr<Binary> binary; - if (error_code ec = createBinary(file, binary)) { - errs() << ToolName << ": '" << file << "': " << ec.message() << ".\n"; + ErrorOr<Binary *> BinaryOrErr = createBinary(file); + if (error_code EC = BinaryOrErr.getError()) { + errs() << ToolName << ": '" << file << "': " << EC.message() << ".\n"; return; } + std::unique_ptr<Binary> binary(BinaryOrErr.get()); if (Archive *a = dyn_cast<Archive>(binary.get())) DumpArchive(a); |