//===----------------------------------------------------------------------===//
#include "llvm-objdump.h"
+#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/MC/MCAnalysis/MCAtom.h"
-#include "llvm/MC/MCAnalysis/MCFunction.h"
-#include "llvm/MC/MCAnalysis/MCModule.h"
-#include "llvm/MC/MCAnalysis/MCModuleYAML.h"
+#include "llvm/CodeGen/FaultMaps.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDisassembler.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCInstrAnalysis.h"
#include "llvm/MC/MCInstrInfo.h"
-#include "llvm/MC/MCObjectDisassembler.h"
#include "llvm/MC/MCObjectFileInfo.h"
-#include "llvm/MC/MCObjectSymbolizer.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCRelocationInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Object/Archive.h"
+#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/MachO.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/Errc.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/MemoryObject.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/SourceMgr.h"
static cl::list<std::string>
InputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore);
-static cl::opt<bool>
-Disassemble("disassemble",
+cl::opt<bool>
+llvm::Disassemble("disassemble",
cl::desc("Display assembler mnemonics for the machine instructions"));
static cl::alias
Disassembled("d", cl::desc("Alias for --disassemble"),
cl::aliasopt(Disassemble));
-static cl::opt<bool>
-Relocations("r", cl::desc("Display the relocation entries in the file"));
+cl::opt<bool>
+llvm::DisassembleAll("disassemble-all",
+ cl::desc("Display assembler mnemonics for the machine instructions"));
+static cl::alias
+DisassembleAlld("D", cl::desc("Alias for --disassemble-all"),
+ cl::aliasopt(DisassembleAll));
-static cl::opt<bool>
-SectionContents("s", cl::desc("Display the content of each section"));
+cl::opt<bool>
+llvm::Relocations("r", cl::desc("Display the relocation entries in the file"));
-static cl::opt<bool>
-SymbolTable("t", cl::desc("Display the symbol table"));
+cl::opt<bool>
+llvm::SectionContents("s", cl::desc("Display the content of each section"));
+
+cl::opt<bool>
+llvm::SymbolTable("t", cl::desc("Display the symbol table"));
+
+cl::opt<bool>
+llvm::ExportsTrie("exports-trie", cl::desc("Display mach-o exported symbols"));
+
+cl::opt<bool>
+llvm::Rebase("rebase", cl::desc("Display mach-o rebasing info"));
+
+cl::opt<bool>
+llvm::Bind("bind", cl::desc("Display mach-o binding info"));
+
+cl::opt<bool>
+llvm::LazyBind("lazy-bind", cl::desc("Display mach-o lazy binding info"));
+
+cl::opt<bool>
+llvm::WeakBind("weak-bind", cl::desc("Display mach-o weak binding info"));
+
+cl::opt<bool>
+llvm::RawClangAST("raw-clang-ast",
+ cl::desc("Dump the raw binary contents of the clang AST section"));
static cl::opt<bool>
MachOOpt("macho", cl::desc("Use MachO specific object file parser"));
"see -version for available targets"));
cl::opt<std::string>
-llvm::ArchName("arch", cl::desc("Target arch to disassemble for, "
+llvm::MCPU("mcpu",
+ cl::desc("Target a specific cpu type (-mcpu=help for details)"),
+ cl::value_desc("cpu-name"),
+ cl::init(""));
+
+cl::opt<std::string>
+llvm::ArchName("arch-name", cl::desc("Target arch to disassemble for, "
"see -version for available targets"));
-static cl::opt<bool>
-SectionHeaders("section-headers", cl::desc("Display summaries of the headers "
- "for each section."));
+cl::opt<bool>
+llvm::SectionHeaders("section-headers", cl::desc("Display summaries of the "
+ "headers for each section."));
static cl::alias
SectionHeadersShort("headers", cl::desc("Alias for --section-headers"),
cl::aliasopt(SectionHeaders));
SectionHeadersShorter("h", cl::desc("Alias for --section-headers"),
cl::aliasopt(SectionHeaders));
-static cl::list<std::string>
-MAttrs("mattr",
+cl::list<std::string>
+llvm::FilterSections("section", cl::desc("Operate on the specified sections only. "
+ "With -macho dump segment,section"));
+cl::alias
+static FilterSectionsj("j", cl::desc("Alias for --section"),
+ cl::aliasopt(llvm::FilterSections));
+
+cl::list<std::string>
+llvm::MAttrs("mattr",
cl::CommaSeparated,
cl::desc("Target specific attributes"),
cl::value_desc("a1,+a2,-a3,..."));
-static cl::opt<bool>
-NoShowRawInsn("no-show-raw-insn", cl::desc("When disassembling instructions, "
- "do not print the instruction bytes."));
+cl::opt<bool>
+llvm::NoShowRawInsn("no-show-raw-insn", cl::desc("When disassembling "
+ "instructions, do not print "
+ "the instruction bytes."));
-static cl::opt<bool>
-UnwindInfo("unwind-info", cl::desc("Display unwind information"));
+cl::opt<bool>
+llvm::UnwindInfo("unwind-info", cl::desc("Display unwind information"));
static cl::alias
UnwindInfoShort("u", cl::desc("Alias for --unwind-info"),
cl::aliasopt(UnwindInfo));
-static cl::opt<bool>
-PrivateHeaders("private-headers",
- cl::desc("Display format specific file headers"));
+cl::opt<bool>
+llvm::PrivateHeaders("private-headers",
+ cl::desc("Display format specific file headers"));
static cl::alias
PrivateHeadersShort("p", cl::desc("Alias for --private-headers"),
cl::aliasopt(PrivateHeaders));
-static cl::opt<bool>
-Symbolize("symbolize", cl::desc("When disassembling instructions, "
- "try to symbolize operands."));
-
-static cl::opt<bool>
-CFG("cfg", cl::desc("Create a CFG for every function found in the object"
- " and write it to a graphviz file"));
+cl::opt<bool>
+ llvm::PrintImmHex("print-imm-hex",
+ cl::desc("Use hex format for immediate values"));
-// FIXME: Does it make sense to have a dedicated tool for yaml cfg output?
-static cl::opt<std::string>
-YAMLCFG("yaml-cfg",
- cl::desc("Create a CFG and write it as a YAML MCModule."),
- cl::value_desc("yaml output file"));
+cl::opt<bool> PrintFaultMaps("fault-map-section",
+ cl::desc("Display contents of faultmap section"));
static StringRef ToolName;
-bool llvm::error(std::error_code EC) {
+namespace {
+typedef std::function<bool(llvm::object::SectionRef const &)> FilterPredicate;
+
+class SectionFilterIterator {
+public:
+ SectionFilterIterator(FilterPredicate P,
+ llvm::object::section_iterator const &I,
+ llvm::object::section_iterator const &E)
+ : Predicate(P), Iterator(I), End(E) {
+ ScanPredicate();
+ }
+ llvm::object::SectionRef operator*() const { return *Iterator; }
+ SectionFilterIterator &operator++() {
+ ++Iterator;
+ ScanPredicate();
+ return *this;
+ }
+ bool operator!=(SectionFilterIterator const &Other) const {
+ return Iterator != Other.Iterator;
+ }
+
+private:
+ void ScanPredicate() {
+ while (Iterator != End && !Predicate(*Iterator)) {
+ ++Iterator;
+ }
+ }
+ FilterPredicate Predicate;
+ llvm::object::section_iterator Iterator;
+ llvm::object::section_iterator End;
+};
+
+class SectionFilter {
+public:
+ SectionFilter(FilterPredicate P, llvm::object::ObjectFile const &O)
+ : Predicate(P), Object(O) {}
+ SectionFilterIterator begin() {
+ return SectionFilterIterator(Predicate, Object.section_begin(),
+ Object.section_end());
+ }
+ SectionFilterIterator end() {
+ return SectionFilterIterator(Predicate, Object.section_end(),
+ Object.section_end());
+ }
+
+private:
+ FilterPredicate Predicate;
+ llvm::object::ObjectFile const &Object;
+};
+SectionFilter ToolSectionFilter(llvm::object::ObjectFile const &O) {
+ return SectionFilter([](llvm::object::SectionRef const &S) {
+ if(FilterSections.empty())
+ return true;
+ llvm::StringRef String;
+ std::error_code error = S.getName(String);
+ if (error)
+ return false;
+ return std::find(FilterSections.begin(),
+ FilterSections.end(),
+ String) != FilterSections.end();
+ },
+ O);
+}
+}
+
+void llvm::error(std::error_code EC) {
if (!EC)
- return false;
+ return;
outs() << ToolName << ": error reading file: " << EC.message() << ".\n";
outs().flush();
- return true;
+ exit(1);
+}
+
+static void report_error(StringRef File, std::error_code EC) {
+ assert(EC);
+ errs() << ToolName << ": '" << File << "': " << EC.message() << ".\n";
+ exit(1);
}
static const Target *getTarget(const ObjectFile *Obj = nullptr) {
return TheTarget;
}
-// Write a graphviz file for the CFG inside an MCFunction.
-// FIXME: Use GraphWriter
-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, sys::fs::F_Text);
- if (!Error.empty()) {
- errs() << "llvm-objdump: warning: " << Error << '\n';
- return;
+bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) {
+ return a.getOffset() < b.getOffset();
+}
+
+namespace {
+class PrettyPrinter {
+public:
+ virtual ~PrettyPrinter(){}
+ virtual void printInst(MCInstPrinter &IP, const MCInst *MI,
+ ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &OS, StringRef Annot,
+ MCSubtargetInfo const &STI) {
+ outs() << format("%8" PRIx64 ":", Address);
+ if (!NoShowRawInsn) {
+ outs() << "\t";
+ dumpBytes(Bytes, outs());
+ }
+ IP.printInst(MI, outs(), "", STI);
+ }
+};
+PrettyPrinter PrettyPrinterInst;
+class HexagonPrettyPrinter : public PrettyPrinter {
+public:
+ void printLead(ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &OS) {
+ uint32_t opcode =
+ (Bytes[3] << 24) | (Bytes[2] << 16) | (Bytes[1] << 8) | Bytes[0];
+ OS << format("%8" PRIx64 ":", Address);
+ if (!NoShowRawInsn) {
+ OS << "\t";
+ dumpBytes(Bytes.slice(0, 4), OS);
+ OS << format("%08" PRIx32, opcode);
+ }
}
+ void printInst(MCInstPrinter &IP, const MCInst *MI,
+ ArrayRef<uint8_t> Bytes, uint64_t Address,
+ raw_ostream &OS, StringRef Annot,
+ MCSubtargetInfo const &STI) override {
+ std::string Buffer;
+ {
+ raw_string_ostream TempStream(Buffer);
+ IP.printInst(MI, TempStream, "", STI);
+ }
+ StringRef Contents(Buffer);
+ // Split off bundle attributes
+ auto PacketBundle = Contents.rsplit('\n');
+ // Split off first instruction from the rest
+ auto HeadTail = PacketBundle.first.split('\n');
+ auto Preamble = " { ";
+ auto Separator = "";
+ while(!HeadTail.first.empty()) {
+ OS << Separator;
+ Separator = "\n";
+ printLead(Bytes, Address, OS);
+ OS << Preamble;
+ Preamble = " ";
+ StringRef Inst;
+ auto Duplex = HeadTail.first.split('\v');
+ if(!Duplex.second.empty()){
+ OS << Duplex.first;
+ OS << "; ";
+ Inst = Duplex.second;
+ }
+ else
+ Inst = HeadTail.first;
+ OS << Inst;
+ Bytes = Bytes.slice(4);
+ Address += 4;
+ HeadTail = HeadTail.second.split('\n');
+ }
+ OS << " } " << PacketBundle.second;
+ }
+};
+HexagonPrettyPrinter HexagonPrettyPrinterInst;
+PrettyPrinter &selectPrettyPrinter(Triple const &Triple) {
+ switch(Triple.getArch()) {
+ default:
+ return PrettyPrinterInst;
+ case Triple::hexagon:
+ return HexagonPrettyPrinterInst;
+ }
+}
+}
- Out << "digraph \"" << f.getName() << "\" {\n";
- Out << "graph [ rankdir = \"LR\" ];\n";
- for (MCFunction::const_iterator i = f.begin(), e = f.end(); i != e; ++i) {
- // Only print blocks that have predecessors.
- bool hasPreds = (*i)->pred_begin() != (*i)->pred_end();
+template <class ELFT>
+static std::error_code getRelocationValueString(const ELFObjectFile<ELFT> *Obj,
+ const RelocationRef &RelRef,
+ SmallVectorImpl<char> &Result) {
+ DataRefImpl Rel = RelRef.getRawDataRefImpl();
+
+ typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
+ typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
+ typedef typename ELFObjectFile<ELFT>::Elf_Rela Elf_Rela;
+
+ const ELFFile<ELFT> &EF = *Obj->getELFFile();
+
+ ErrorOr<const Elf_Shdr *> SecOrErr = EF.getSection(Rel.d.a);
+ if (std::error_code EC = SecOrErr.getError())
+ return EC;
+ const Elf_Shdr *Sec = *SecOrErr;
+ ErrorOr<const Elf_Shdr *> SymTabOrErr = EF.getSection(Sec->sh_link);
+ if (std::error_code EC = SymTabOrErr.getError())
+ return EC;
+ const Elf_Shdr *SymTab = *SymTabOrErr;
+ assert(SymTab->sh_type == ELF::SHT_SYMTAB ||
+ SymTab->sh_type == ELF::SHT_DYNSYM);
+ ErrorOr<const Elf_Shdr *> StrTabSec = EF.getSection(SymTab->sh_link);
+ if (std::error_code EC = StrTabSec.getError())
+ return EC;
+ ErrorOr<StringRef> StrTabOrErr = EF.getStringTable(*StrTabSec);
+ if (std::error_code EC = StrTabOrErr.getError())
+ return EC;
+ StringRef StrTab = *StrTabOrErr;
+ uint8_t type = RelRef.getType();
+ StringRef res;
+ int64_t addend = 0;
+ switch (Sec->sh_type) {
+ default:
+ return object_error::parse_failed;
+ case ELF::SHT_REL: {
+ // TODO: Read implicit addend from section data.
+ break;
+ }
+ case ELF::SHT_RELA: {
+ const Elf_Rela *ERela = Obj->getRela(Rel);
+ addend = ERela->r_addend;
+ break;
+ }
+ }
+ symbol_iterator SI = RelRef.getSymbol();
+ const Elf_Sym *symb = Obj->getSymbol(SI->getRawDataRefImpl());
+ StringRef Target;
+ if (symb->getType() == ELF::STT_SECTION) {
+ ErrorOr<section_iterator> SymSI = SI->getSection();
+ if (std::error_code EC = SymSI.getError())
+ return EC;
+ const Elf_Shdr *SymSec = Obj->getSection((*SymSI)->getRawDataRefImpl());
+ ErrorOr<StringRef> SecName = EF.getSectionName(SymSec);
+ if (std::error_code EC = SecName.getError())
+ return EC;
+ Target = *SecName;
+ } else {
+ ErrorOr<StringRef> SymName = symb->getName(StrTab);
+ if (!SymName)
+ return SymName.getError();
+ Target = *SymName;
+ }
+ switch (EF.getHeader()->e_machine) {
+ case ELF::EM_X86_64:
+ switch (type) {
+ case ELF::R_X86_64_PC8:
+ case ELF::R_X86_64_PC16:
+ case ELF::R_X86_64_PC32: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << Target << (addend < 0 ? "" : "+") << addend << "-P";
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ } break;
+ case ELF::R_X86_64_8:
+ case ELF::R_X86_64_16:
+ case ELF::R_X86_64_32:
+ case ELF::R_X86_64_32S:
+ case ELF::R_X86_64_64: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << Target << (addend < 0 ? "" : "+") << addend;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ } break;
+ default:
+ res = "Unknown";
+ }
+ break;
+ case ELF::EM_AARCH64: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << Target;
+ if (addend != 0)
+ fmt << (addend < 0 ? "" : "+") << addend;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ break;
+ }
+ case ELF::EM_386:
+ case ELF::EM_ARM:
+ case ELF::EM_HEXAGON:
+ case ELF::EM_MIPS:
+ res = Target;
+ break;
+ default:
+ res = "Unknown";
+ }
+ if (Result.empty())
+ Result.append(res.begin(), res.end());
+ return std::error_code();
+}
- if (!hasPreds && i != f.begin())
- continue;
+static std::error_code getRelocationValueString(const ELFObjectFileBase *Obj,
+ const RelocationRef &Rel,
+ SmallVectorImpl<char> &Result) {
+ if (auto *ELF32LE = dyn_cast<ELF32LEObjectFile>(Obj))
+ return getRelocationValueString(ELF32LE, Rel, Result);
+ if (auto *ELF64LE = dyn_cast<ELF64LEObjectFile>(Obj))
+ return getRelocationValueString(ELF64LE, Rel, Result);
+ if (auto *ELF32BE = dyn_cast<ELF32BEObjectFile>(Obj))
+ return getRelocationValueString(ELF32BE, Rel, Result);
+ auto *ELF64BE = cast<ELF64BEObjectFile>(Obj);
+ return getRelocationValueString(ELF64BE, Rel, Result);
+}
- Out << '"' << (*i)->getInsts()->getBeginAddr() << "\" [ label=\"<a>";
- // Print instructions.
- for (unsigned ii = 0, ie = (*i)->getInsts()->size(); ii != ie;
- ++ii) {
- if (ii != 0) // Not the first line, start a new row.
- Out << '|';
- if (ii + 1 == ie) // Last line, add an end id.
- Out << "<o>";
-
- // Escape special chars and print the instruction in mnemonic form.
- std::string Str;
- raw_string_ostream OS(Str);
- IP->printInst(&(*i)->getInsts()->at(ii).Inst, OS, "");
- Out << DOT::EscapeString(OS.str());
+static std::error_code getRelocationValueString(const COFFObjectFile *Obj,
+ const RelocationRef &Rel,
+ SmallVectorImpl<char> &Result) {
+ symbol_iterator SymI = Rel.getSymbol();
+ ErrorOr<StringRef> SymNameOrErr = SymI->getName();
+ if (std::error_code EC = SymNameOrErr.getError())
+ return EC;
+ StringRef SymName = *SymNameOrErr;
+ Result.append(SymName.begin(), SymName.end());
+ return std::error_code();
+}
+
+static void printRelocationTargetName(const MachOObjectFile *O,
+ const MachO::any_relocation_info &RE,
+ raw_string_ostream &fmt) {
+ bool IsScattered = O->isRelocationScattered(RE);
+
+ // Target of a scattered relocation is an address. In the interest of
+ // generating pretty output, scan through the symbol table looking for a
+ // symbol that aligns with that address. If we find one, print it.
+ // Otherwise, we just print the hex address of the target.
+ if (IsScattered) {
+ uint32_t Val = O->getPlainRelocationSymbolNum(RE);
+
+ for (const SymbolRef &Symbol : O->symbols()) {
+ std::error_code ec;
+ ErrorOr<uint64_t> Addr = Symbol.getAddress();
+ if ((ec = Addr.getError()))
+ report_fatal_error(ec.message());
+ if (*Addr != Val)
+ continue;
+ ErrorOr<StringRef> Name = Symbol.getName();
+ if (std::error_code EC = Name.getError())
+ report_fatal_error(EC.message());
+ fmt << *Name;
+ return;
}
- Out << "\" shape=\"record\" ];\n";
- // Add edges.
- for (MCBasicBlock::succ_const_iterator si = (*i)->succ_begin(),
- se = (*i)->succ_end(); si != se; ++si)
- Out << (*i)->getInsts()->getBeginAddr() << ":o -> "
- << (*si)->getInsts()->getBeginAddr() << ":a\n";
+ // If we couldn't find a symbol that this relocation refers to, try
+ // to find a section beginning instead.
+ for (const SectionRef &Section : ToolSectionFilter(*O)) {
+ std::error_code ec;
+
+ StringRef Name;
+ uint64_t Addr = Section.getAddress();
+ if (Addr != Val)
+ continue;
+ if ((ec = Section.getName(Name)))
+ report_fatal_error(ec.message());
+ fmt << Name;
+ return;
+ }
+
+ fmt << format("0x%x", Val);
+ return;
}
- Out << "}\n";
-}
-void llvm::DumpBytes(StringRef bytes) {
- static const char hex_rep[] = "0123456789abcdef";
- // FIXME: The real way to do this is to figure out the longest instruction
- // and align to that size before printing. I'll fix this when I get
- // around to outputting relocations.
- // 15 is the longest x86 instruction
- // 3 is for the hex rep of a byte + a space.
- // 1 is for the null terminator.
- enum { OutputSize = (15 * 3) + 1 };
- char output[OutputSize];
+ StringRef S;
+ bool isExtern = O->getPlainRelocationExternal(RE);
+ uint64_t Val = O->getPlainRelocationSymbolNum(RE);
- assert(bytes.size() <= 15
- && "DumpBytes only supports instructions of up to 15 bytes");
- memset(output, ' ', sizeof(output));
- unsigned index = 0;
- for (StringRef::iterator i = bytes.begin(),
- e = bytes.end(); i != e; ++i) {
- output[index] = hex_rep[(*i & 0xF0) >> 4];
- output[index + 1] = hex_rep[*i & 0xF];
- index += 3;
+ if (isExtern) {
+ symbol_iterator SI = O->symbol_begin();
+ advance(SI, Val);
+ ErrorOr<StringRef> SOrErr = SI->getName();
+ error(SOrErr.getError());
+ S = *SOrErr;
+ } else {
+ section_iterator SI = O->section_begin();
+ // Adjust for the fact that sections are 1-indexed.
+ advance(SI, Val - 1);
+ SI->getName(S);
}
- output[sizeof(output) - 1] = 0;
- outs() << output;
+ fmt << S;
}
-bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) {
- uint64_t a_addr, b_addr;
- if (error(a.getOffset(a_addr))) return false;
- if (error(b.getOffset(b_addr))) return false;
- return a_addr < b_addr;
+static std::error_code getRelocationValueString(const MachOObjectFile *Obj,
+ const RelocationRef &RelRef,
+ SmallVectorImpl<char> &Result) {
+ DataRefImpl Rel = RelRef.getRawDataRefImpl();
+ MachO::any_relocation_info RE = Obj->getRelocation(Rel);
+
+ unsigned Arch = Obj->getArch();
+
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ unsigned Type = Obj->getAnyRelocationType(RE);
+ bool IsPCRel = Obj->getAnyRelocationPCRel(RE);
+
+ // Determine any addends that should be displayed with the relocation.
+ // These require decoding the relocation type, which is triple-specific.
+
+ // X86_64 has entirely custom relocation types.
+ if (Arch == Triple::x86_64) {
+ bool isPCRel = Obj->getAnyRelocationPCRel(RE);
+
+ switch (Type) {
+ case MachO::X86_64_RELOC_GOT_LOAD:
+ case MachO::X86_64_RELOC_GOT: {
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "@GOT";
+ if (isPCRel)
+ fmt << "PCREL";
+ break;
+ }
+ case MachO::X86_64_RELOC_SUBTRACTOR: {
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // X86_64_RELOC_SUBTRACTOR must be followed by a relocation of type
+ // X86_64_RELOC_UNSIGNED.
+ // NOTE: Scattered relocations don't exist on x86_64.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+ if (RType != MachO::X86_64_RELOC_UNSIGNED)
+ report_fatal_error("Expected X86_64_RELOC_UNSIGNED after "
+ "X86_64_RELOC_SUBTRACTOR.");
+
+ // The X86_64_RELOC_UNSIGNED contains the minuend symbol;
+ // X86_64_RELOC_SUBTRACTOR contains the subtrahend.
+ printRelocationTargetName(Obj, RENext, fmt);
+ fmt << "-";
+ printRelocationTargetName(Obj, RE, fmt);
+ break;
+ }
+ case MachO::X86_64_RELOC_TLV:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "@TLV";
+ if (isPCRel)
+ fmt << "P";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_1:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-1";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_2:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-2";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_4:
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-4";
+ break;
+ default:
+ printRelocationTargetName(Obj, RE, fmt);
+ break;
+ }
+ // X86 and ARM share some relocation types in common.
+ } else if (Arch == Triple::x86 || Arch == Triple::arm ||
+ Arch == Triple::ppc) {
+ // Generic relocation types...
+ switch (Type) {
+ case MachO::GENERIC_RELOC_PAIR: // prints no info
+ return std::error_code();
+ case MachO::GENERIC_RELOC_SECTDIFF: {
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // X86 sect diff's must be followed by a relocation of type
+ // GENERIC_RELOC_PAIR.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+
+ if (RType != MachO::GENERIC_RELOC_PAIR)
+ report_fatal_error("Expected GENERIC_RELOC_PAIR after "
+ "GENERIC_RELOC_SECTDIFF.");
+
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-";
+ printRelocationTargetName(Obj, RENext, fmt);
+ break;
+ }
+ }
+
+ if (Arch == Triple::x86 || Arch == Triple::ppc) {
+ switch (Type) {
+ case MachO::GENERIC_RELOC_LOCAL_SECTDIFF: {
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // X86 sect diff's must be followed by a relocation of type
+ // GENERIC_RELOC_PAIR.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+ if (RType != MachO::GENERIC_RELOC_PAIR)
+ report_fatal_error("Expected GENERIC_RELOC_PAIR after "
+ "GENERIC_RELOC_LOCAL_SECTDIFF.");
+
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "-";
+ printRelocationTargetName(Obj, RENext, fmt);
+ break;
+ }
+ case MachO::GENERIC_RELOC_TLV: {
+ printRelocationTargetName(Obj, RE, fmt);
+ fmt << "@TLV";
+ if (IsPCRel)
+ fmt << "P";
+ break;
+ }
+ default:
+ printRelocationTargetName(Obj, RE, fmt);
+ }
+ } else { // ARM-specific relocations
+ switch (Type) {
+ case MachO::ARM_RELOC_HALF:
+ case MachO::ARM_RELOC_HALF_SECTDIFF: {
+ // Half relocations steal a bit from the length field to encode
+ // whether this is an upper16 or a lower16 relocation.
+ bool isUpper = Obj->getAnyRelocationLength(RE) >> 1;
+
+ if (isUpper)
+ fmt << ":upper16:(";
+ else
+ fmt << ":lower16:(";
+ printRelocationTargetName(Obj, RE, fmt);
+
+ DataRefImpl RelNext = Rel;
+ Obj->moveRelocationNext(RelNext);
+ MachO::any_relocation_info RENext = Obj->getRelocation(RelNext);
+
+ // ARM half relocs must be followed by a relocation of type
+ // ARM_RELOC_PAIR.
+ unsigned RType = Obj->getAnyRelocationType(RENext);
+ if (RType != MachO::ARM_RELOC_PAIR)
+ report_fatal_error("Expected ARM_RELOC_PAIR after "
+ "ARM_RELOC_HALF");
+
+ // NOTE: The half of the target virtual address is stashed in the
+ // address field of the secondary relocation, but we can't reverse
+ // engineer the constant offset from it without decoding the movw/movt
+ // instruction to find the other half in its immediate field.
+
+ // ARM_RELOC_HALF_SECTDIFF encodes the second section in the
+ // symbol/section pointer of the follow-on relocation.
+ if (Type == MachO::ARM_RELOC_HALF_SECTDIFF) {
+ fmt << "-";
+ printRelocationTargetName(Obj, RENext, fmt);
+ }
+
+ fmt << ")";
+ break;
+ }
+ default: { printRelocationTargetName(Obj, RE, fmt); }
+ }
+ }
+ } else
+ printRelocationTargetName(Obj, RE, fmt);
+
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ return std::error_code();
+}
+
+static std::error_code getRelocationValueString(const RelocationRef &Rel,
+ SmallVectorImpl<char> &Result) {
+ const ObjectFile *Obj = Rel.getObject();
+ if (auto *ELF = dyn_cast<ELFObjectFileBase>(Obj))
+ return getRelocationValueString(ELF, Rel, Result);
+ if (auto *COFF = dyn_cast<COFFObjectFile>(Obj))
+ return getRelocationValueString(COFF, Rel, Result);
+ auto *MachO = cast<MachOObjectFile>(Obj);
+ return getRelocationValueString(MachO, Rel, Result);
+}
+
+/// @brief Indicates whether this relocation should hidden when listing
+/// relocations, usually because it is the trailing part of a multipart
+/// relocation that will be printed as part of the leading relocation.
+static bool getHidden(RelocationRef RelRef) {
+ const ObjectFile *Obj = RelRef.getObject();
+ auto *MachO = dyn_cast<MachOObjectFile>(Obj);
+ if (!MachO)
+ return false;
+
+ unsigned Arch = MachO->getArch();
+ DataRefImpl Rel = RelRef.getRawDataRefImpl();
+ uint64_t Type = MachO->getRelocationType(Rel);
+
+ // On arches that use the generic relocations, GENERIC_RELOC_PAIR
+ // is always hidden.
+ if (Arch == Triple::x86 || Arch == Triple::arm || Arch == Triple::ppc) {
+ if (Type == MachO::GENERIC_RELOC_PAIR)
+ return true;
+ } else if (Arch == Triple::x86_64) {
+ // On x86_64, X86_64_RELOC_UNSIGNED is hidden only when it follows
+ // an X86_64_RELOC_SUBTRACTOR.
+ if (Type == MachO::X86_64_RELOC_UNSIGNED && Rel.d.a > 0) {
+ DataRefImpl RelPrev = Rel;
+ RelPrev.d.a--;
+ uint64_t PrevType = MachO->getRelocationType(RelPrev);
+ if (PrevType == MachO::X86_64_RELOC_SUBTRACTOR)
+ return true;
+ }
+ }
+
+ return false;
}
static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
}
std::unique_ptr<const MCSubtargetInfo> STI(
- TheTarget->createMCSubtargetInfo(TripleName, "", FeaturesStr));
+ TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
if (!STI) {
errs() << "error: no subtarget info for target " << TripleName << "\n";
return;
return;
}
-
- if (Symbolize) {
- std::unique_ptr<MCRelocationInfo> RelInfo(
- TheTarget->createMCRelocationInfo(TripleName, Ctx));
- if (RelInfo) {
- std::unique_ptr<MCSymbolizer> Symzer(
- MCObjectSymbolizer::createObjectSymbolizer(Ctx, std::move(RelInfo),
- Obj));
- if (Symzer)
- DisAsm->setSymbolizer(std::move(Symzer));
- }
- }
-
std::unique_ptr<const MCInstrAnalysis> MIA(
TheTarget->createMCInstrAnalysis(MII.get()));
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
- AsmPrinterVariant, *AsmInfo, *MII, *MRI, *STI));
+ Triple(TripleName), AsmPrinterVariant, *AsmInfo, *MII, *MRI));
if (!IP) {
errs() << "error: no instruction printer for target " << TripleName
<< '\n';
return;
}
-
- if (CFG || !YAMLCFG.empty()) {
- 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) {
- outs() << "Atom " << (*AI)->getName() << ": \n";
- if (const MCTextAtom *TA = dyn_cast<MCTextAtom>(*AI)) {
- for (MCTextAtom::const_iterator II = TA->begin(), IE = TA->end();
- II != IE;
- ++II) {
- IP->printInst(&II->Inst, outs(), "");
- outs() << "\n";
- }
- }
- }
- if (CFG) {
- for (MCModule::const_func_iterator FI = Mod->func_begin(),
- FE = Mod->func_end();
- FI != FE; ++FI) {
- static int filenum = 0;
- emitDOTFile((Twine((*FI)->getName()) + "_" +
- utostr(filenum) + ".dot").str().c_str(),
- **FI, IP.get());
- ++filenum;
- }
- }
- if (!YAMLCFG.empty()) {
- std::string Error;
- raw_fd_ostream YAMLOut(YAMLCFG.c_str(), Error, sys::fs::F_Text);
- if (!Error.empty()) {
- errs() << ToolName << ": warning: " << Error << '\n';
- return;
- }
- mcmodule2yaml(YAMLOut, *Mod, *MII, *MRI);
- }
- }
+ IP->setPrintImmHex(PrintImmHex);
+ PrettyPrinter &PIP = selectPrettyPrinter(Triple(TripleName));
StringRef Fmt = Obj->getBytesInAddress() > 4 ? "\t\t%016" PRIx64 ": " :
"\t\t\t%08" PRIx64 ": ";
// in RelocSecs contain the relocations for section S.
std::error_code EC;
std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
- for (const SectionRef &Section : Obj->sections()) {
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
section_iterator Sec2 = Section.getRelocatedSection();
if (Sec2 != Obj->section_end())
SectionRelocMap[*Sec2].push_back(Section);
}
- for (const SectionRef &Section : Obj->sections()) {
- bool Text;
- if (error(Section.isText(Text)))
- break;
- if (!Text)
- continue;
+ // Create a mapping from virtual address to symbol name. This is used to
+ // pretty print the target of a call.
+ std::vector<std::pair<uint64_t, StringRef>> AllSymbols;
+ if (MIA) {
+ for (const SymbolRef &Symbol : Obj->symbols()) {
+ if (Symbol.getType() != SymbolRef::ST_Function)
+ continue;
- uint64_t SectionAddr;
- if (error(Section.getAddress(SectionAddr)))
- break;
+ ErrorOr<uint64_t> AddressOrErr = Symbol.getAddress();
+ error(AddressOrErr.getError());
+ uint64_t Address = *AddressOrErr;
- uint64_t SectSize;
- if (error(Section.getSize(SectSize)))
- break;
+ ErrorOr<StringRef> Name = Symbol.getName();
+ error(Name.getError());
+ if (Name->empty())
+ continue;
+ AllSymbols.push_back(std::make_pair(Address, *Name));
+ }
+
+ array_pod_sort(AllSymbols.begin(), AllSymbols.end());
+ }
+
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
+ if (!DisassembleAll && (!Section.isText() || Section.isVirtual()))
+ continue;
+
+ uint64_t SectionAddr = Section.getAddress();
+ uint64_t SectSize = Section.getSize();
+ if (!SectSize)
+ continue;
// Make a list of all the symbols in this section.
std::vector<std::pair<uint64_t, StringRef>> Symbols;
for (const SymbolRef &Symbol : Obj->symbols()) {
- bool contains;
- if (!error(Section.containsSymbol(Symbol, contains)) && contains) {
- uint64_t Address;
- if (error(Symbol.getAddress(Address)))
- break;
- if (Address == UnknownAddressOrSize)
- continue;
+ if (Section.containsSymbol(Symbol)) {
+ ErrorOr<uint64_t> AddressOrErr = Symbol.getAddress();
+ error(AddressOrErr.getError());
+ uint64_t Address = *AddressOrErr;
Address -= SectionAddr;
if (Address >= SectSize)
continue;
- StringRef Name;
- if (error(Symbol.getName(Name)))
- break;
- Symbols.push_back(std::make_pair(Address, Name));
+ ErrorOr<StringRef> Name = Symbol.getName();
+ error(Name.getError());
+ Symbols.push_back(std::make_pair(Address, *Name));
}
}
SegmentName = MachO->getSectionFinalSegmentName(DR);
}
StringRef name;
- if (error(Section.getName(name)))
- break;
+ error(Section.getName(name));
outs() << "Disassembly of section ";
if (!SegmentName.empty())
outs() << SegmentName << ",";
outs() << name << ':';
- // If the section has no symbols just insert a dummy one and disassemble
- // the whole section.
- if (Symbols.empty())
- Symbols.push_back(std::make_pair(0, name));
-
+ // If the section has no symbol at the start, just insert a dummy one.
+ if (Symbols.empty() || Symbols[0].first != 0)
+ Symbols.insert(Symbols.begin(), std::make_pair(0, name));
SmallString<40> Comments;
raw_svector_ostream CommentStream(Comments);
- StringRef Bytes;
- if (error(Section.getContents(Bytes)))
- break;
- StringRefMemoryObject memoryObject(Bytes, SectionAddr);
+ StringRef BytesStr;
+ error(Section.getContents(BytesStr));
+ ArrayRef<uint8_t> Bytes(reinterpret_cast<const uint8_t *>(BytesStr.data()),
+ BytesStr.size());
+
uint64_t Size;
uint64_t Index;
std::vector<RelocationRef>::const_iterator rel_end = Rels.end();
// Disassemble symbol by symbol.
for (unsigned si = 0, se = Symbols.size(); si != se; ++si) {
+
uint64_t Start = Symbols[si].first;
- uint64_t End;
- // The end is either the size of the section or the beginning of the next
- // symbol.
- if (si == se - 1)
- End = SectSize;
- // Make sure this symbol takes up space.
- else if (Symbols[si + 1].first != Start)
- End = Symbols[si + 1].first - 1;
- else
- // This symbol has the same address as the next symbol. Skip it.
+ // The end is either the section end or the beginning of the next symbol.
+ uint64_t End = (si == se - 1) ? SectSize : Symbols[si + 1].first;
+ // If this symbol has the same address as the next symbol, then skip it.
+ if (Start == End)
continue;
outs() << '\n' << Symbols[si].second << ":\n";
for (Index = Start; Index < End; Index += Size) {
MCInst Inst;
- if (DisAsm->getInstruction(Inst, Size, memoryObject,
- SectionAddr + Index,
- DebugOut, CommentStream)) {
- outs() << format("%8" PRIx64 ":", SectionAddr + Index);
- if (!NoShowRawInsn) {
- outs() << "\t";
- DumpBytes(StringRef(Bytes.data() + Index, Size));
- }
- IP->printInst(&Inst, outs(), "");
+ if (DisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
+ SectionAddr + Index, DebugOut,
+ CommentStream)) {
+ PIP.printInst(*IP, &Inst,
+ Bytes.slice(Index, Size),
+ SectionAddr + Index, outs(), "", *STI);
outs() << CommentStream.str();
Comments.clear();
+ if (MIA && (MIA->isCall(Inst) || MIA->isUnconditionalBranch(Inst) ||
+ MIA->isConditionalBranch(Inst))) {
+ uint64_t Target;
+ if (MIA->evaluateBranch(Inst, SectionAddr + Index, Size, Target)) {
+ auto TargetSym = std::upper_bound(
+ AllSymbols.begin(), AllSymbols.end(), Target,
+ [](uint64_t LHS, const std::pair<uint64_t, StringRef> &RHS) {
+ return LHS < RHS.first;
+ });
+ if (TargetSym != AllSymbols.begin())
+ --TargetSym;
+ else
+ TargetSym = AllSymbols.end();
+
+ if (TargetSym != AllSymbols.end()) {
+ outs() << " <" << TargetSym->second;
+ uint64_t Disp = Target - TargetSym->first;
+ if (Disp)
+ outs() << '+' << utohexstr(Disp);
+ outs() << '>';
+ }
+ }
+ }
outs() << "\n";
} else {
errs() << ToolName << ": warning: invalid instruction encoding\n";
// Print relocation for instruction.
while (rel_cur != rel_end) {
- bool hidden = false;
- uint64_t addr;
+ bool hidden = getHidden(*rel_cur);
+ uint64_t addr = rel_cur->getOffset();
SmallString<16> name;
SmallString<32> val;
// If this relocation is hidden, skip it.
- if (error(rel_cur->getHidden(hidden))) goto skip_print_rel;
if (hidden) goto skip_print_rel;
- if (error(rel_cur->getOffset(addr))) goto skip_print_rel;
// Stop when rel_cur's address is past the current instruction.
if (addr >= Index + Size) break;
- if (error(rel_cur->getTypeName(name))) goto skip_print_rel;
- if (error(rel_cur->getValueString(val))) goto skip_print_rel;
-
+ rel_cur->getTypeName(name);
+ error(getRelocationValueString(*rel_cur, val));
outs() << format(Fmt.data(), SectionAddr + addr) << name
<< "\t" << val << "\n";
}
}
-static void PrintRelocations(const ObjectFile *Obj) {
+void llvm::PrintRelocations(const ObjectFile *Obj) {
StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 :
"%08" PRIx64;
- for (const SectionRef &Section : Obj->sections()) {
+ // Regular objdump doesn't print relocations in non-relocatable object
+ // files.
+ if (!Obj->isRelocatableObject())
+ return;
+
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
if (Section.relocation_begin() == Section.relocation_end())
continue;
StringRef secname;
- if (error(Section.getName(secname)))
- continue;
+ error(Section.getName(secname));
outs() << "RELOCATION RECORDS FOR [" << secname << "]:\n";
for (const RelocationRef &Reloc : Section.relocations()) {
- bool hidden;
- uint64_t address;
+ bool hidden = getHidden(Reloc);
+ uint64_t address = Reloc.getOffset();
SmallString<32> relocname;
SmallString<32> valuestr;
- 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;
+ Reloc.getTypeName(relocname);
+ error(getRelocationValueString(Reloc, valuestr));
outs() << format(Fmt.data(), address) << " " << relocname << " "
<< valuestr << "\n";
}
}
}
-static void PrintSectionHeaders(const ObjectFile *Obj) {
+void llvm::PrintSectionHeaders(const ObjectFile *Obj) {
outs() << "Sections:\n"
"Idx Name Size Address Type\n";
unsigned i = 0;
- for (const SectionRef &Section : Obj->sections()) {
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
StringRef Name;
- if (error(Section.getName(Name)))
- return;
- uint64_t Address;
- if (error(Section.getAddress(Address)))
- return;
- uint64_t Size;
- if (error(Section.getSize(Size)))
- return;
- bool Text, Data, BSS;
- if (error(Section.isText(Text)))
- return;
- if (error(Section.isData(Data)))
- return;
- if (error(Section.isBSS(BSS)))
- return;
+ error(Section.getName(Name));
+ uint64_t Address = Section.getAddress();
+ uint64_t Size = Section.getSize();
+ bool Text = Section.isText();
+ bool Data = Section.isData();
+ bool BSS = Section.isBSS();
std::string Type = (std::string(Text ? "TEXT " : "") +
(Data ? "DATA " : "") + (BSS ? "BSS" : ""));
outs() << format("%3d %-13s %08" PRIx64 " %016" PRIx64 " %s\n", i,
}
}
-static void PrintSectionContents(const ObjectFile *Obj) {
+void llvm::PrintSectionContents(const ObjectFile *Obj) {
std::error_code EC;
- for (const SectionRef &Section : Obj->sections()) {
+ for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
StringRef Name;
StringRef Contents;
- uint64_t BaseAddr;
- bool BSS;
- if (error(Section.getName(Name)))
- continue;
- if (error(Section.getAddress(BaseAddr)))
- continue;
- if (error(Section.isBSS(BSS)))
+ error(Section.getName(Name));
+ uint64_t BaseAddr = Section.getAddress();
+ uint64_t Size = Section.getSize();
+ if (!Size)
continue;
outs() << "Contents of section " << Name << ":\n";
- if (BSS) {
- uint64_t Size;
- if (error(Section.getSize(Size)))
- continue;
+ if (Section.isBSS()) {
outs() << format("<skipping contents of bss section at [%04" PRIx64
", %04" PRIx64 ")>\n",
BaseAddr, BaseAddr + Size);
continue;
}
- if (error(Section.getContents(Contents)))
- continue;
+ error(Section.getContents(Contents));
// Dump out the content as hex and printable ascii characters.
for (std::size_t addr = 0, end = Contents.size(); addr < end; addr += 16) {
}
static void PrintCOFFSymbolTable(const COFFObjectFile *coff) {
- const coff_file_header *header;
- if (error(coff->getHeader(header)))
- return;
-
- for (unsigned SI = 0, SE = header->NumberOfSymbols; SI != SE; ++SI) {
- const coff_symbol *Symbol;
+ for (unsigned SI = 0, SE = coff->getNumberOfSymbols(); SI != SE; ++SI) {
+ ErrorOr<COFFSymbolRef> Symbol = coff->getSymbol(SI);
StringRef Name;
- if (error(coff->getSymbol(SI, Symbol)))
- return;
-
- if (error(coff->getSymbolName(Symbol, Name)))
- return;
+ error(Symbol.getError());
+ error(coff->getSymbolName(*Symbol, Name));
outs() << "[" << format("%2d", SI) << "]"
- << "(sec " << format("%2d", int(Symbol->SectionNumber)) << ")"
+ << "(sec " << format("%2d", int(Symbol->getSectionNumber())) << ")"
<< "(fl 0x00)" // Flag bits, which COFF doesn't have.
- << "(ty " << format("%3x", unsigned(Symbol->Type)) << ")"
- << "(scl " << format("%3x", unsigned(Symbol->StorageClass)) << ") "
- << "(nx " << unsigned(Symbol->NumberOfAuxSymbols) << ") "
- << "0x" << format("%08x", unsigned(Symbol->Value)) << " "
+ << "(ty " << format("%3x", unsigned(Symbol->getType())) << ")"
+ << "(scl " << format("%3x", unsigned(Symbol->getStorageClass())) << ") "
+ << "(nx " << unsigned(Symbol->getNumberOfAuxSymbols()) << ") "
+ << "0x" << format("%08x", unsigned(Symbol->getValue())) << " "
<< Name << "\n";
- for (unsigned AI = 0, AE = Symbol->NumberOfAuxSymbols; AI < AE; ++AI, ++SI) {
+ for (unsigned AI = 0, AE = Symbol->getNumberOfAuxSymbols(); AI < AE; ++AI, ++SI) {
if (Symbol->isSectionDefinition()) {
const coff_aux_section_definition *asd;
- if (error(coff->getAuxSymbol<coff_aux_section_definition>(SI + 1, asd)))
- return;
+ error(coff->getAuxSymbol<coff_aux_section_definition>(SI + 1, asd));
+
+ int32_t AuxNumber = asd->getNumber(Symbol->isBigObj());
outs() << "AUX "
<< format("scnlen 0x%x nreloc %d nlnno %d checksum 0x%x "
, unsigned(asd->NumberOfLinenumbers)
, unsigned(asd->CheckSum))
<< format("assoc %d comdat %d\n"
- , unsigned(asd->Number)
+ , unsigned(AuxNumber)
, unsigned(asd->Selection));
} else if (Symbol->isFileRecord()) {
- const coff_aux_file *AF;
- if (error(coff->getAuxSymbol<coff_aux_file>(SI + 1, AF)))
- return;
+ const char *FileName;
+ error(coff->getAuxSymbol<char>(SI + 1, FileName));
- StringRef Name(AF->FileName,
- Symbol->NumberOfAuxSymbols * COFF::SymbolSize);
+ StringRef Name(FileName, Symbol->getNumberOfAuxSymbols() *
+ coff->getSymbolTableEntrySize());
outs() << "AUX " << Name.rtrim(StringRef("\0", 1)) << '\n';
- SI = SI + Symbol->NumberOfAuxSymbols;
+ SI = SI + Symbol->getNumberOfAuxSymbols();
break;
} else {
outs() << "AUX Unknown\n";
}
}
-static void PrintSymbolTable(const ObjectFile *o) {
+void llvm::PrintSymbolTable(const ObjectFile *o) {
outs() << "SYMBOL TABLE:\n";
if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) {
return;
}
for (const SymbolRef &Symbol : o->symbols()) {
- StringRef Name;
- uint64_t Address;
- SymbolRef::Type Type;
- uint64_t Size;
+ ErrorOr<uint64_t> AddressOrError = Symbol.getAddress();
+ error(AddressOrError.getError());
+ uint64_t Address = *AddressOrError;
+ SymbolRef::Type Type = Symbol.getType();
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;
+ ErrorOr<section_iterator> SectionOrErr = Symbol.getSection();
+ error(SectionOrErr.getError());
+ section_iterator Section = *SectionOrErr;
+ StringRef Name;
+ if (Type == SymbolRef::ST_Debug && Section != o->section_end()) {
+ Section->getName(Name);
+ } else {
+ ErrorOr<StringRef> NameOrErr = Symbol.getName();
+ error(NameOrErr.getError());
+ Name = *NameOrErr;
+ }
bool Global = Flags & SymbolRef::SF_Global;
bool Weak = Flags & SymbolRef::SF_Weak;
bool Absolute = Flags & SymbolRef::SF_Absolute;
+ bool Common = Flags & SymbolRef::SF_Common;
+ bool Hidden = Flags & SymbolRef::SF_Hidden;
- if (Address == UnknownAddressOrSize)
- Address = 0;
- if (Size == UnknownAddressOrSize)
- Size = 0;
char GlobLoc = ' ';
if (Type != SymbolRef::ST_Unknown)
GlobLoc = Global ? 'g' : 'l';
<< ' ';
if (Absolute) {
outs() << "*ABS*";
+ } else if (Common) {
+ outs() << "*COM*";
} else if (Section == o->section_end()) {
outs() << "*UND*";
} else {
outs() << SegmentName << ",";
}
StringRef SectionName;
- if (error(Section->getName(SectionName)))
- SectionName = "";
+ error(Section->getName(SectionName));
outs() << SectionName;
}
- outs() << '\t'
- << format("%08" PRIx64 " ", Size)
- << Name
+
+ outs() << '\t';
+ if (Common || isa<ELFObjectFileBase>(o)) {
+ uint64_t Val =
+ Common ? Symbol.getAlignment() : ELFSymbolRef(Symbol).getSize();
+ outs() << format("\t %08" PRIx64 " ", Val);
+ }
+
+ if (Hidden) {
+ outs() << ".hidden ";
+ }
+ outs() << Name
<< '\n';
}
}
if (const COFFObjectFile *coff = dyn_cast<COFFObjectFile>(o)) {
printCOFFUnwindInfo(coff);
- } else {
+ } else if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOUnwindInfo(MachO);
+ else {
// TODO: Extract DWARF dump tool to objdump.
errs() << "This operation is only currently supported "
- "for COFF object files.\n";
+ "for COFF and MachO object files.\n";
+ return;
+ }
+}
+
+void llvm::printExportsTrie(const ObjectFile *o) {
+ outs() << "Exports trie:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOExportsTrie(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printRebaseTable(const ObjectFile *o) {
+ outs() << "Rebase table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachORebaseTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
return;
}
}
+void llvm::printBindTable(const ObjectFile *o) {
+ outs() << "Bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printLazyBindTable(const ObjectFile *o) {
+ outs() << "Lazy bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOLazyBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+void llvm::printWeakBindTable(const ObjectFile *o) {
+ outs() << "Weak bind table:\n";
+ if (const MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o))
+ printMachOWeakBindTable(MachO);
+ else {
+ errs() << "This operation is only currently supported "
+ "for Mach-O executable files.\n";
+ return;
+ }
+}
+
+/// Dump the raw contents of the __clangast section so the output can be piped
+/// into llvm-bcanalyzer.
+void llvm::printRawClangAST(const ObjectFile *Obj) {
+ if (outs().is_displayed()) {
+ errs() << "The -raw-clang-ast option will dump the raw binary contents of "
+ "the clang ast section.\n"
+ "Please redirect the output to a file or another program such as "
+ "llvm-bcanalyzer.\n";
+ return;
+ }
+
+ StringRef ClangASTSectionName("__clangast");
+ if (isa<COFFObjectFile>(Obj)) {
+ ClangASTSectionName = "clangast";
+ }
+
+ Optional<object::SectionRef> ClangASTSection;
+ for (auto Sec : ToolSectionFilter(*Obj)) {
+ StringRef Name;
+ Sec.getName(Name);
+ if (Name == ClangASTSectionName) {
+ ClangASTSection = Sec;
+ break;
+ }
+ }
+ if (!ClangASTSection)
+ return;
+
+ StringRef ClangASTContents;
+ error(ClangASTSection.getValue().getContents(ClangASTContents));
+ outs().write(ClangASTContents.data(), ClangASTContents.size());
+}
+
+static void printFaultMaps(const ObjectFile *Obj) {
+ const char *FaultMapSectionName = nullptr;
+
+ if (isa<ELFObjectFileBase>(Obj)) {
+ FaultMapSectionName = ".llvm_faultmaps";
+ } else if (isa<MachOObjectFile>(Obj)) {
+ FaultMapSectionName = "__llvm_faultmaps";
+ } else {
+ errs() << "This operation is only currently supported "
+ "for ELF and Mach-O executable files.\n";
+ return;
+ }
+
+ Optional<object::SectionRef> FaultMapSection;
+
+ for (auto Sec : ToolSectionFilter(*Obj)) {
+ StringRef Name;
+ Sec.getName(Name);
+ if (Name == FaultMapSectionName) {
+ FaultMapSection = Sec;
+ break;
+ }
+ }
+
+ outs() << "FaultMap table:\n";
+
+ if (!FaultMapSection.hasValue()) {
+ outs() << "<not found>\n";
+ return;
+ }
+
+ StringRef FaultMapContents;
+ error(FaultMapSection.getValue().getContents(FaultMapContents));
+
+ FaultMapParser FMP(FaultMapContents.bytes_begin(),
+ FaultMapContents.bytes_end());
+
+ outs() << FMP;
+}
+
static void printPrivateFileHeader(const ObjectFile *o) {
if (o->isELF()) {
printELFFileHeader(o);
} else if (o->isCOFF()) {
printCOFFFileHeader(o);
+ } else if (o->isMachO()) {
+ printMachOFileHeader(o);
}
}
static void DumpObject(const ObjectFile *o) {
- outs() << '\n';
- outs() << o->getFileName()
- << ":\tfile format " << o->getFileFormatName() << "\n\n";
+ // Avoid other output when using a raw option.
+ if (!RawClangAST) {
+ outs() << '\n';
+ outs() << o->getFileName()
+ << ":\tfile format " << o->getFileFormatName() << "\n\n";
+ }
if (Disassemble)
DisassembleObject(o, Relocations);
PrintUnwindInfo(o);
if (PrivateHeaders)
printPrivateFileHeader(o);
+ if (ExportsTrie)
+ printExportsTrie(o);
+ if (Rebase)
+ printRebaseTable(o);
+ if (Bind)
+ printBindTable(o);
+ if (LazyBind)
+ printLazyBindTable(o);
+ if (WeakBind)
+ printWeakBindTable(o);
+ if (RawClangAST)
+ printRawClangAST(o);
+ if (PrintFaultMaps)
+ printFaultMaps(o);
}
/// @brief Dump each object file in \a a;
static void DumpArchive(const Archive *a) {
- for (Archive::child_iterator i = a->child_begin(), e = a->child_end(); i != e;
- ++i) {
- ErrorOr<std::unique_ptr<Binary>> ChildOrErr = i->getAsBinary();
- if (std::error_code EC = ChildOrErr.getError()) {
- // Ignore non-object files.
+ for (const Archive::Child &C : a->children()) {
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
+ if (std::error_code EC = ChildOrErr.getError())
if (EC != object_error::invalid_file_type)
- errs() << ToolName << ": '" << a->getFileName() << "': " << EC.message()
- << ".\n";
- continue;
- }
+ report_error(a->getFileName(), EC);
if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
DumpObject(o);
else
- errs() << ToolName << ": '" << a->getFileName() << "': "
- << "Unrecognized file type.\n";
+ report_error(a->getFileName(), object_error::invalid_file_type);
}
}
/// @brief Open file and figure out how to dump it.
static void DumpInput(StringRef file) {
// If file isn't stdin, check that it exists.
- if (file != "-" && !sys::fs::exists(file)) {
- errs() << ToolName << ": '" << file << "': " << "No such file\n";
- return;
- }
-
- if (MachOOpt && Disassemble) {
- DisassembleInputMachO(file);
+ if (file != "-" && !sys::fs::exists(file))
+ report_error(file, errc::no_such_file_or_directory);
+
+ // If we are using the Mach-O specific object file parser, then let it parse
+ // the file and process the command line options. So the -arch flags can
+ // be used to select specific slices, etc.
+ if (MachOOpt) {
+ ParseInputMachO(file);
return;
}
// Attempt to open the binary.
- ErrorOr<std::unique_ptr<Binary>> BinaryOrErr = createBinary(file);
- if (std::error_code EC = BinaryOrErr.getError()) {
- errs() << ToolName << ": '" << file << "': " << EC.message() << ".\n";
- return;
- }
- std::unique_ptr<Binary> binary = std::move(BinaryOrErr.get());
+ ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(file);
+ if (std::error_code EC = BinaryOrErr.getError())
+ report_error(file, EC);
+ Binary &Binary = *BinaryOrErr.get().getBinary();
- if (Archive *a = dyn_cast<Archive>(binary.get()))
+ if (Archive *a = dyn_cast<Archive>(&Binary))
DumpArchive(a);
- else if (ObjectFile *o = dyn_cast<ObjectFile>(binary.get()))
+ else if (ObjectFile *o = dyn_cast<ObjectFile>(&Binary))
DumpObject(o);
else
- errs() << ToolName << ": '" << file << "': " << "Unrecognized file type.\n";
+ report_error(file, object_error::invalid_file_type);
}
int main(int argc, char **argv) {
if (InputFilenames.size() == 0)
InputFilenames.push_back("a.out");
+ if (DisassembleAll)
+ Disassemble = true;
if (!Disassemble
&& !Relocations
&& !SectionHeaders
&& !SectionContents
&& !SymbolTable
&& !UnwindInfo
- && !PrivateHeaders) {
+ && !PrivateHeaders
+ && !ExportsTrie
+ && !Rebase
+ && !Bind
+ && !LazyBind
+ && !WeakBind
+ && !RawClangAST
+ && !(UniversalHeaders && MachOOpt)
+ && !(ArchiveHeaders && MachOOpt)
+ && !(IndirectSymbols && MachOOpt)
+ && !(DataInCode && MachOOpt)
+ && !(LinkOptHints && MachOOpt)
+ && !(InfoPlist && MachOOpt)
+ && !(DylibsUsed && MachOOpt)
+ && !(DylibId && MachOOpt)
+ && !(ObjcMetaData && MachOOpt)
+ && !(FilterSections.size() != 0 && MachOOpt)
+ && !PrintFaultMaps) {
cl::PrintHelpMessage();
return 2;
}
std::for_each(InputFilenames.begin(), InputFilenames.end(),
DumpInput);
- return 0;
+ return EXIT_SUCCESS;
}
projects / oota-llvm.git / blobdiff