forked from OSchip/llvm-project
2401 lines
82 KiB
C++
2401 lines
82 KiB
C++
//===-- llvm-objdump.cpp - Object file dumping utility for llvm -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This program is a utility that works like binutils "objdump", that is, it
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// dumps out a plethora of information about an object file depending on the
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// flags.
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//
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// The flags and output of this program should be near identical to those of
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// binutils objdump.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm-objdump.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/StringSet.h"
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#include "llvm/ADT/Triple.h"
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#include "llvm/CodeGen/FaultMaps.h"
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#include "llvm/DebugInfo/DWARF/DWARFContext.h"
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#include "llvm/DebugInfo/Symbolize/Symbolize.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCDisassembler/MCDisassembler.h"
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#include "llvm/MC/MCDisassembler/MCRelocationInfo.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstPrinter.h"
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#include "llvm/MC/MCInstrAnalysis.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCObjectFileInfo.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/COFF.h"
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#include "llvm/Object/COFFImportFile.h"
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#include "llvm/Object/ELFObjectFile.h"
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#include "llvm/Object/MachO.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Object/Wasm.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/Errc.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/GraphWriter.h"
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#include "llvm/Support/Host.h"
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#include "llvm/Support/InitLLVM.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/TargetSelect.h"
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#include "llvm/Support/raw_ostream.h"
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#include <algorithm>
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#include <cctype>
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#include <cstring>
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#include <system_error>
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#include <unordered_map>
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#include <utility>
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using namespace llvm;
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using namespace object;
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cl::opt<bool>
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llvm::AllHeaders("all-headers",
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cl::desc("Display all available header information"));
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static cl::alias AllHeadersShort("x", cl::desc("Alias for --all-headers"),
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cl::aliasopt(AllHeaders));
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static cl::list<std::string>
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InputFilenames(cl::Positional, cl::desc("<input object files>"),cl::ZeroOrMore);
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cl::opt<bool>
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llvm::Disassemble("disassemble",
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cl::desc("Display assembler mnemonics for the machine instructions"));
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static cl::alias
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Disassembled("d", cl::desc("Alias for --disassemble"),
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cl::aliasopt(Disassemble));
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cl::opt<bool>
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llvm::DisassembleAll("disassemble-all",
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cl::desc("Display assembler mnemonics for the machine instructions"));
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static cl::alias
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DisassembleAlld("D", cl::desc("Alias for --disassemble-all"),
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cl::aliasopt(DisassembleAll));
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static cl::list<std::string>
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DisassembleFunctions("df",
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cl::CommaSeparated,
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cl::desc("List of functions to disassemble"));
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static StringSet<> DisasmFuncsSet;
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cl::opt<bool>
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llvm::Relocations("r", cl::desc("Display the relocation entries in the file"));
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cl::opt<bool>
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llvm::DynamicRelocations("dynamic-reloc",
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cl::desc("Display the dynamic relocation entries in the file"));
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static cl::alias
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DynamicRelocationsd("R", cl::desc("Alias for --dynamic-reloc"),
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cl::aliasopt(DynamicRelocations));
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cl::opt<bool>
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llvm::SectionContents("s", cl::desc("Display the content of each section"));
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cl::opt<bool>
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llvm::SymbolTable("t", cl::desc("Display the symbol table"));
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cl::opt<bool>
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llvm::ExportsTrie("exports-trie", cl::desc("Display mach-o exported symbols"));
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cl::opt<bool>
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llvm::Rebase("rebase", cl::desc("Display mach-o rebasing info"));
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cl::opt<bool>
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llvm::Bind("bind", cl::desc("Display mach-o binding info"));
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cl::opt<bool>
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llvm::LazyBind("lazy-bind", cl::desc("Display mach-o lazy binding info"));
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cl::opt<bool>
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llvm::WeakBind("weak-bind", cl::desc("Display mach-o weak binding info"));
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cl::opt<bool>
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llvm::RawClangAST("raw-clang-ast",
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cl::desc("Dump the raw binary contents of the clang AST section"));
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static cl::opt<bool>
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MachOOpt("macho", cl::desc("Use MachO specific object file parser"));
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static cl::alias
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MachOm("m", cl::desc("Alias for --macho"), cl::aliasopt(MachOOpt));
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cl::opt<std::string>
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llvm::TripleName("triple", cl::desc("Target triple to disassemble for, "
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"see -version for available targets"));
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cl::opt<std::string>
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llvm::MCPU("mcpu",
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cl::desc("Target a specific cpu type (-mcpu=help for details)"),
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cl::value_desc("cpu-name"),
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cl::init(""));
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cl::opt<std::string>
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llvm::ArchName("arch-name", cl::desc("Target arch to disassemble for, "
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"see -version for available targets"));
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cl::opt<bool>
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llvm::SectionHeaders("section-headers", cl::desc("Display summaries of the "
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"headers for each section."));
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static cl::alias
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SectionHeadersShort("headers", cl::desc("Alias for --section-headers"),
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cl::aliasopt(SectionHeaders));
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static cl::alias
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SectionHeadersShorter("h", cl::desc("Alias for --section-headers"),
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cl::aliasopt(SectionHeaders));
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cl::list<std::string>
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llvm::FilterSections("section", cl::desc("Operate on the specified sections only. "
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"With -macho dump segment,section"));
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cl::alias
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static FilterSectionsj("j", cl::desc("Alias for --section"),
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cl::aliasopt(llvm::FilterSections));
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cl::list<std::string>
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llvm::MAttrs("mattr",
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cl::CommaSeparated,
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cl::desc("Target specific attributes"),
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cl::value_desc("a1,+a2,-a3,..."));
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cl::opt<bool>
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llvm::NoShowRawInsn("no-show-raw-insn", cl::desc("When disassembling "
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"instructions, do not print "
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"the instruction bytes."));
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cl::opt<bool>
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llvm::NoLeadingAddr("no-leading-addr", cl::desc("Print no leading address"));
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cl::opt<bool>
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llvm::UnwindInfo("unwind-info", cl::desc("Display unwind information"));
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static cl::alias
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UnwindInfoShort("u", cl::desc("Alias for --unwind-info"),
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cl::aliasopt(UnwindInfo));
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cl::opt<bool>
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llvm::PrivateHeaders("private-headers",
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cl::desc("Display format specific file headers"));
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cl::opt<bool>
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llvm::FirstPrivateHeader("private-header",
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cl::desc("Display only the first format specific file "
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"header"));
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static cl::alias
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PrivateHeadersShort("p", cl::desc("Alias for --private-headers"),
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cl::aliasopt(PrivateHeaders));
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cl::opt<bool> llvm::FileHeaders(
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"file-headers",
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cl::desc("Display the contents of the overall file header"));
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static cl::alias FileHeadersShort("f", cl::desc("Alias for --file-headers"),
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cl::aliasopt(FileHeaders));
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cl::opt<bool>
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llvm::ArchiveHeaders("archive-headers",
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cl::desc("Display archive header information"));
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cl::alias
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ArchiveHeadersShort("a", cl::desc("Alias for --archive-headers"),
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cl::aliasopt(ArchiveHeaders));
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cl::opt<bool>
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llvm::PrintImmHex("print-imm-hex",
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cl::desc("Use hex format for immediate values"));
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cl::opt<bool> PrintFaultMaps("fault-map-section",
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cl::desc("Display contents of faultmap section"));
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cl::opt<DIDumpType> llvm::DwarfDumpType(
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"dwarf", cl::init(DIDT_Null), cl::desc("Dump of dwarf debug sections:"),
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cl::values(clEnumValN(DIDT_DebugFrame, "frames", ".debug_frame")));
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cl::opt<bool> PrintSource(
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"source",
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cl::desc(
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"Display source inlined with disassembly. Implies disassemble object"));
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cl::alias PrintSourceShort("S", cl::desc("Alias for -source"),
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cl::aliasopt(PrintSource));
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cl::opt<bool> PrintLines("line-numbers",
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cl::desc("Display source line numbers with "
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"disassembly. Implies disassemble object"));
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cl::alias PrintLinesShort("l", cl::desc("Alias for -line-numbers"),
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cl::aliasopt(PrintLines));
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cl::opt<unsigned long long>
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StartAddress("start-address", cl::desc("Disassemble beginning at address"),
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cl::value_desc("address"), cl::init(0));
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cl::opt<unsigned long long>
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StopAddress("stop-address", cl::desc("Stop disassembly at address"),
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cl::value_desc("address"), cl::init(UINT64_MAX));
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static StringRef ToolName;
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typedef std::vector<std::tuple<uint64_t, StringRef, uint8_t>> SectionSymbolsTy;
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namespace {
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typedef std::function<bool(llvm::object::SectionRef const &)> FilterPredicate;
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class SectionFilterIterator {
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public:
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SectionFilterIterator(FilterPredicate P,
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llvm::object::section_iterator const &I,
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llvm::object::section_iterator const &E)
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: Predicate(std::move(P)), Iterator(I), End(E) {
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ScanPredicate();
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}
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const llvm::object::SectionRef &operator*() const { return *Iterator; }
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SectionFilterIterator &operator++() {
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++Iterator;
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ScanPredicate();
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return *this;
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}
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bool operator!=(SectionFilterIterator const &Other) const {
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return Iterator != Other.Iterator;
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}
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private:
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void ScanPredicate() {
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while (Iterator != End && !Predicate(*Iterator)) {
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++Iterator;
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}
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}
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FilterPredicate Predicate;
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llvm::object::section_iterator Iterator;
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llvm::object::section_iterator End;
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};
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class SectionFilter {
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public:
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SectionFilter(FilterPredicate P, llvm::object::ObjectFile const &O)
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: Predicate(std::move(P)), Object(O) {}
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SectionFilterIterator begin() {
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return SectionFilterIterator(Predicate, Object.section_begin(),
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Object.section_end());
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}
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SectionFilterIterator end() {
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return SectionFilterIterator(Predicate, Object.section_end(),
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Object.section_end());
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}
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private:
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FilterPredicate Predicate;
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llvm::object::ObjectFile const &Object;
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};
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SectionFilter ToolSectionFilter(llvm::object::ObjectFile const &O) {
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return SectionFilter(
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[](llvm::object::SectionRef const &S) {
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if (FilterSections.empty())
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return true;
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llvm::StringRef String;
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std::error_code error = S.getName(String);
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if (error)
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return false;
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return is_contained(FilterSections, String);
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},
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O);
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}
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}
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void llvm::error(std::error_code EC) {
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if (!EC)
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return;
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errs() << ToolName << ": error reading file: " << EC.message() << ".\n";
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errs().flush();
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exit(1);
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}
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LLVM_ATTRIBUTE_NORETURN void llvm::error(Twine Message) {
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errs() << ToolName << ": " << Message << ".\n";
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errs().flush();
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exit(1);
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}
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LLVM_ATTRIBUTE_NORETURN void llvm::report_error(StringRef File,
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Twine Message) {
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errs() << ToolName << ": '" << File << "': " << Message << ".\n";
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exit(1);
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}
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LLVM_ATTRIBUTE_NORETURN void llvm::report_error(StringRef File,
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std::error_code EC) {
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assert(EC);
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errs() << ToolName << ": '" << File << "': " << EC.message() << ".\n";
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exit(1);
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}
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LLVM_ATTRIBUTE_NORETURN void llvm::report_error(StringRef File,
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llvm::Error E) {
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assert(E);
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std::string Buf;
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raw_string_ostream OS(Buf);
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logAllUnhandledErrors(std::move(E), OS, "");
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OS.flush();
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errs() << ToolName << ": '" << File << "': " << Buf;
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exit(1);
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}
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LLVM_ATTRIBUTE_NORETURN void llvm::report_error(StringRef ArchiveName,
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StringRef FileName,
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llvm::Error E,
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StringRef ArchitectureName) {
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assert(E);
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errs() << ToolName << ": ";
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if (ArchiveName != "")
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errs() << ArchiveName << "(" << FileName << ")";
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else
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errs() << "'" << FileName << "'";
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if (!ArchitectureName.empty())
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errs() << " (for architecture " << ArchitectureName << ")";
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std::string Buf;
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raw_string_ostream OS(Buf);
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logAllUnhandledErrors(std::move(E), OS, "");
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OS.flush();
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errs() << ": " << Buf;
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exit(1);
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}
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LLVM_ATTRIBUTE_NORETURN void llvm::report_error(StringRef ArchiveName,
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const object::Archive::Child &C,
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llvm::Error E,
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StringRef ArchitectureName) {
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Expected<StringRef> NameOrErr = C.getName();
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// TODO: if we have a error getting the name then it would be nice to print
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// the index of which archive member this is and or its offset in the
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// archive instead of "???" as the name.
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if (!NameOrErr) {
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consumeError(NameOrErr.takeError());
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llvm::report_error(ArchiveName, "???", std::move(E), ArchitectureName);
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} else
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llvm::report_error(ArchiveName, NameOrErr.get(), std::move(E),
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ArchitectureName);
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}
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static const Target *getTarget(const ObjectFile *Obj = nullptr) {
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// Figure out the target triple.
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llvm::Triple TheTriple("unknown-unknown-unknown");
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if (TripleName.empty()) {
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if (Obj) {
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TheTriple = Obj->makeTriple();
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}
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} else {
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TheTriple.setTriple(Triple::normalize(TripleName));
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// Use the triple, but also try to combine with ARM build attributes.
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if (Obj) {
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auto Arch = Obj->getArch();
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if (Arch == Triple::arm || Arch == Triple::armeb) {
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Obj->setARMSubArch(TheTriple);
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}
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}
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}
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// Get the target specific parser.
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std::string Error;
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const Target *TheTarget = TargetRegistry::lookupTarget(ArchName, TheTriple,
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Error);
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if (!TheTarget) {
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if (Obj)
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report_error(Obj->getFileName(), "can't find target: " + Error);
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else
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error("can't find target: " + Error);
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}
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// Update the triple name and return the found target.
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TripleName = TheTriple.getTriple();
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return TheTarget;
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}
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bool llvm::RelocAddressLess(RelocationRef a, RelocationRef b) {
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return a.getOffset() < b.getOffset();
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}
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template <class ELFT>
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static std::error_code getRelocationValueString(const ELFObjectFile<ELFT> *Obj,
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const RelocationRef &RelRef,
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SmallVectorImpl<char> &Result) {
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DataRefImpl Rel = RelRef.getRawDataRefImpl();
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typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
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typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
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typedef typename ELFObjectFile<ELFT>::Elf_Rela Elf_Rela;
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const ELFFile<ELFT> &EF = *Obj->getELFFile();
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auto SecOrErr = EF.getSection(Rel.d.a);
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if (!SecOrErr)
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return errorToErrorCode(SecOrErr.takeError());
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const Elf_Shdr *Sec = *SecOrErr;
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auto SymTabOrErr = EF.getSection(Sec->sh_link);
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if (!SymTabOrErr)
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return errorToErrorCode(SymTabOrErr.takeError());
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const Elf_Shdr *SymTab = *SymTabOrErr;
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assert(SymTab->sh_type == ELF::SHT_SYMTAB ||
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SymTab->sh_type == ELF::SHT_DYNSYM);
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auto StrTabSec = EF.getSection(SymTab->sh_link);
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if (!StrTabSec)
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return errorToErrorCode(StrTabSec.takeError());
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auto StrTabOrErr = EF.getStringTable(*StrTabSec);
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if (!StrTabOrErr)
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return errorToErrorCode(StrTabOrErr.takeError());
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StringRef StrTab = *StrTabOrErr;
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int64_t addend = 0;
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// If there is no Symbol associated with the relocation, we set the undef
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// boolean value to 'true'. This will prevent us from calling functions that
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// requires the relocation to be associated with a symbol.
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bool undef = false;
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switch (Sec->sh_type) {
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default:
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return object_error::parse_failed;
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case ELF::SHT_REL: {
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// TODO: Read implicit addend from section data.
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break;
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}
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case ELF::SHT_RELA: {
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const Elf_Rela *ERela = Obj->getRela(Rel);
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addend = ERela->r_addend;
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undef = ERela->getSymbol(false) == 0;
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break;
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}
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}
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StringRef Target;
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if (!undef) {
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symbol_iterator SI = RelRef.getSymbol();
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const Elf_Sym *symb = Obj->getSymbol(SI->getRawDataRefImpl());
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if (symb->getType() == ELF::STT_SECTION) {
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Expected<section_iterator> SymSI = SI->getSection();
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if (!SymSI)
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return errorToErrorCode(SymSI.takeError());
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const Elf_Shdr *SymSec = Obj->getSection((*SymSI)->getRawDataRefImpl());
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auto SecName = EF.getSectionName(SymSec);
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if (!SecName)
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|
return errorToErrorCode(SecName.takeError());
|
|
Target = *SecName;
|
|
} else {
|
|
Expected<StringRef> SymName = symb->getName(StrTab);
|
|
if (!SymName)
|
|
return errorToErrorCode(SymName.takeError());
|
|
Target = *SymName;
|
|
}
|
|
} else
|
|
Target = "*ABS*";
|
|
|
|
// Default scheme is to print Target, as well as "+ <addend>" for nonzero
|
|
// addend. Should be acceptable for all normal purposes.
|
|
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());
|
|
return std::error_code();
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
static std::error_code getRelocationValueString(const COFFObjectFile *Obj,
|
|
const RelocationRef &Rel,
|
|
SmallVectorImpl<char> &Result) {
|
|
symbol_iterator SymI = Rel.getSymbol();
|
|
Expected<StringRef> SymNameOrErr = SymI->getName();
|
|
if (!SymNameOrErr)
|
|
return errorToErrorCode(SymNameOrErr.takeError());
|
|
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;
|
|
Expected<uint64_t> Addr = Symbol.getAddress();
|
|
if (!Addr)
|
|
report_error(O->getFileName(), Addr.takeError());
|
|
if (*Addr != Val)
|
|
continue;
|
|
Expected<StringRef> Name = Symbol.getName();
|
|
if (!Name)
|
|
report_error(O->getFileName(), Name.takeError());
|
|
fmt << *Name;
|
|
return;
|
|
}
|
|
|
|
// 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_error(O->getFileName(), ec);
|
|
fmt << Name;
|
|
return;
|
|
}
|
|
|
|
fmt << format("0x%x", Val);
|
|
return;
|
|
}
|
|
|
|
StringRef S;
|
|
bool isExtern = O->getPlainRelocationExternal(RE);
|
|
uint64_t Val = O->getPlainRelocationSymbolNum(RE);
|
|
|
|
if (O->getAnyRelocationType(RE) == MachO::ARM64_RELOC_ADDEND) {
|
|
fmt << format("0x%0" PRIx64, Val);
|
|
return;
|
|
} else if (isExtern) {
|
|
symbol_iterator SI = O->symbol_begin();
|
|
advance(SI, Val);
|
|
Expected<StringRef> SOrErr = SI->getName();
|
|
if (!SOrErr)
|
|
report_error(O->getFileName(), SOrErr.takeError());
|
|
S = *SOrErr;
|
|
} else {
|
|
section_iterator SI = O->section_begin();
|
|
// Adjust for the fact that sections are 1-indexed.
|
|
if (Val == 0) {
|
|
fmt << "0 (?,?)";
|
|
return;
|
|
}
|
|
uint32_t i = Val - 1;
|
|
while (i != 0 && SI != O->section_end()) {
|
|
i--;
|
|
advance(SI, 1);
|
|
}
|
|
if (SI == O->section_end())
|
|
fmt << Val << " (?,?)";
|
|
else
|
|
SI->getName(S);
|
|
}
|
|
|
|
fmt << S;
|
|
}
|
|
|
|
static std::error_code getRelocationValueString(const WasmObjectFile *Obj,
|
|
const RelocationRef &RelRef,
|
|
SmallVectorImpl<char> &Result) {
|
|
const wasm::WasmRelocation& Rel = Obj->getWasmRelocation(RelRef);
|
|
symbol_iterator SI = RelRef.getSymbol();
|
|
std::string fmtbuf;
|
|
raw_string_ostream fmt(fmtbuf);
|
|
if (SI == Obj->symbol_end()) {
|
|
// Not all wasm relocations have symbols associated with them.
|
|
// In particular R_WEBASSEMBLY_TYPE_INDEX_LEB.
|
|
fmt << Rel.Index;
|
|
} else {
|
|
Expected<StringRef> SymNameOrErr = SI->getName();
|
|
if (!SymNameOrErr)
|
|
return errorToErrorCode(SymNameOrErr.takeError());
|
|
StringRef SymName = *SymNameOrErr;
|
|
Result.append(SymName.begin(), SymName.end());
|
|
}
|
|
fmt << (Rel.Addend < 0 ? "" : "+") << Rel.Addend;
|
|
fmt.flush();
|
|
Result.append(fmtbuf.begin(), fmtbuf.end());
|
|
return std::error_code();
|
|
}
|
|
|
|
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_error(Obj->getFileName(), "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_error(Obj->getFileName(), "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_error(Obj->getFileName(), "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) & 0x1) == 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_error(Obj->getFileName(), "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);
|
|
if (auto *Wasm = dyn_cast<WasmObjectFile>(Obj))
|
|
return getRelocationValueString(Wasm, Rel, Result);
|
|
if (auto *MachO = dyn_cast<MachOObjectFile>(Obj))
|
|
return getRelocationValueString(MachO, Rel, Result);
|
|
llvm_unreachable("unknown object file format");
|
|
}
|
|
|
|
/// 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;
|
|
}
|
|
|
|
namespace {
|
|
class SourcePrinter {
|
|
protected:
|
|
DILineInfo OldLineInfo;
|
|
const ObjectFile *Obj = nullptr;
|
|
std::unique_ptr<symbolize::LLVMSymbolizer> Symbolizer;
|
|
// File name to file contents of source
|
|
std::unordered_map<std::string, std::unique_ptr<MemoryBuffer>> SourceCache;
|
|
// Mark the line endings of the cached source
|
|
std::unordered_map<std::string, std::vector<StringRef>> LineCache;
|
|
|
|
private:
|
|
bool cacheSource(const DILineInfo& LineInfoFile);
|
|
|
|
public:
|
|
SourcePrinter() = default;
|
|
SourcePrinter(const ObjectFile *Obj, StringRef DefaultArch) : Obj(Obj) {
|
|
symbolize::LLVMSymbolizer::Options SymbolizerOpts(
|
|
DILineInfoSpecifier::FunctionNameKind::None, true, false, false,
|
|
DefaultArch);
|
|
Symbolizer.reset(new symbolize::LLVMSymbolizer(SymbolizerOpts));
|
|
}
|
|
virtual ~SourcePrinter() = default;
|
|
virtual void printSourceLine(raw_ostream &OS, uint64_t Address,
|
|
StringRef Delimiter = "; ");
|
|
};
|
|
|
|
bool SourcePrinter::cacheSource(const DILineInfo &LineInfo) {
|
|
std::unique_ptr<MemoryBuffer> Buffer;
|
|
if (LineInfo.Source) {
|
|
Buffer = MemoryBuffer::getMemBuffer(*LineInfo.Source);
|
|
} else {
|
|
auto BufferOrError = MemoryBuffer::getFile(LineInfo.FileName);
|
|
if (!BufferOrError)
|
|
return false;
|
|
Buffer = std::move(*BufferOrError);
|
|
}
|
|
// Chomp the file to get lines
|
|
size_t BufferSize = Buffer->getBufferSize();
|
|
const char *BufferStart = Buffer->getBufferStart();
|
|
for (const char *Start = BufferStart, *End = BufferStart;
|
|
End < BufferStart + BufferSize; End++)
|
|
if (*End == '\n' || End == BufferStart + BufferSize - 1 ||
|
|
(*End == '\r' && *(End + 1) == '\n')) {
|
|
LineCache[LineInfo.FileName].push_back(StringRef(Start, End - Start));
|
|
if (*End == '\r')
|
|
End++;
|
|
Start = End + 1;
|
|
}
|
|
SourceCache[LineInfo.FileName] = std::move(Buffer);
|
|
return true;
|
|
}
|
|
|
|
void SourcePrinter::printSourceLine(raw_ostream &OS, uint64_t Address,
|
|
StringRef Delimiter) {
|
|
if (!Symbolizer)
|
|
return;
|
|
DILineInfo LineInfo = DILineInfo();
|
|
auto ExpectecLineInfo =
|
|
Symbolizer->symbolizeCode(Obj->getFileName(), Address);
|
|
if (!ExpectecLineInfo)
|
|
consumeError(ExpectecLineInfo.takeError());
|
|
else
|
|
LineInfo = *ExpectecLineInfo;
|
|
|
|
if ((LineInfo.FileName == "<invalid>") || OldLineInfo.Line == LineInfo.Line ||
|
|
LineInfo.Line == 0)
|
|
return;
|
|
|
|
if (PrintLines)
|
|
OS << Delimiter << LineInfo.FileName << ":" << LineInfo.Line << "\n";
|
|
if (PrintSource) {
|
|
if (SourceCache.find(LineInfo.FileName) == SourceCache.end())
|
|
if (!cacheSource(LineInfo))
|
|
return;
|
|
auto FileBuffer = SourceCache.find(LineInfo.FileName);
|
|
if (FileBuffer != SourceCache.end()) {
|
|
auto LineBuffer = LineCache.find(LineInfo.FileName);
|
|
if (LineBuffer != LineCache.end()) {
|
|
if (LineInfo.Line > LineBuffer->second.size())
|
|
return;
|
|
// Vector begins at 0, line numbers are non-zero
|
|
OS << Delimiter << LineBuffer->second[LineInfo.Line - 1].ltrim()
|
|
<< "\n";
|
|
}
|
|
}
|
|
}
|
|
OldLineInfo = LineInfo;
|
|
}
|
|
|
|
static bool isArmElf(const ObjectFile *Obj) {
|
|
return (Obj->isELF() &&
|
|
(Obj->getArch() == Triple::aarch64 ||
|
|
Obj->getArch() == Triple::aarch64_be ||
|
|
Obj->getArch() == Triple::arm || Obj->getArch() == Triple::armeb ||
|
|
Obj->getArch() == Triple::thumb ||
|
|
Obj->getArch() == Triple::thumbeb));
|
|
}
|
|
|
|
class PrettyPrinter {
|
|
public:
|
|
virtual ~PrettyPrinter() = default;
|
|
virtual void printInst(MCInstPrinter &IP, const MCInst *MI,
|
|
ArrayRef<uint8_t> Bytes, uint64_t Address,
|
|
raw_ostream &OS, StringRef Annot,
|
|
MCSubtargetInfo const &STI, SourcePrinter *SP,
|
|
std::vector<RelocationRef> *Rels = nullptr) {
|
|
if (SP && (PrintSource || PrintLines))
|
|
SP->printSourceLine(OS, Address);
|
|
if (!NoLeadingAddr)
|
|
OS << format("%8" PRIx64 ":", Address);
|
|
if (!NoShowRawInsn) {
|
|
OS << "\t";
|
|
dumpBytes(Bytes, OS);
|
|
}
|
|
if (MI)
|
|
IP.printInst(MI, OS, "", STI);
|
|
else
|
|
OS << " <unknown>";
|
|
}
|
|
};
|
|
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];
|
|
if (!NoLeadingAddr)
|
|
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, SourcePrinter *SP,
|
|
std::vector<RelocationRef> *Rels) override {
|
|
if (SP && (PrintSource || PrintLines))
|
|
SP->printSourceLine(OS, Address, "");
|
|
if (!MI) {
|
|
printLead(Bytes, Address, OS);
|
|
OS << " <unknown>";
|
|
return;
|
|
}
|
|
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 = "";
|
|
StringRef Fmt = "\t\t\t%08" PRIx64 ": ";
|
|
std::vector<RelocationRef>::const_iterator rel_cur = Rels->begin();
|
|
std::vector<RelocationRef>::const_iterator rel_end = Rels->end();
|
|
|
|
// Hexagon's packets require relocations to be inline rather than
|
|
// clustered at the end of the packet.
|
|
auto PrintReloc = [&]() -> void {
|
|
while ((rel_cur != rel_end) && (rel_cur->getOffset() <= Address)) {
|
|
if (rel_cur->getOffset() == Address) {
|
|
SmallString<16> name;
|
|
SmallString<32> val;
|
|
rel_cur->getTypeName(name);
|
|
error(getRelocationValueString(*rel_cur, val));
|
|
OS << Separator << format(Fmt.data(), Address) << name << "\t" << val
|
|
<< "\n";
|
|
return;
|
|
}
|
|
rel_cur++;
|
|
}
|
|
};
|
|
|
|
while(!HeadTail.first.empty()) {
|
|
OS << Separator;
|
|
Separator = "\n";
|
|
if (SP && (PrintSource || PrintLines))
|
|
SP->printSourceLine(OS, Address, "");
|
|
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;
|
|
HeadTail = HeadTail.second.split('\n');
|
|
if (HeadTail.first.empty())
|
|
OS << " } " << PacketBundle.second;
|
|
PrintReloc();
|
|
Bytes = Bytes.slice(4);
|
|
Address += 4;
|
|
}
|
|
}
|
|
};
|
|
HexagonPrettyPrinter HexagonPrettyPrinterInst;
|
|
|
|
class AMDGCNPrettyPrinter : public PrettyPrinter {
|
|
public:
|
|
void printInst(MCInstPrinter &IP, const MCInst *MI, ArrayRef<uint8_t> Bytes,
|
|
uint64_t Address, raw_ostream &OS, StringRef Annot,
|
|
MCSubtargetInfo const &STI, SourcePrinter *SP,
|
|
std::vector<RelocationRef> *Rels) override {
|
|
if (SP && (PrintSource || PrintLines))
|
|
SP->printSourceLine(OS, Address);
|
|
|
|
typedef support::ulittle32_t U32;
|
|
|
|
if (MI) {
|
|
SmallString<40> InstStr;
|
|
raw_svector_ostream IS(InstStr);
|
|
|
|
IP.printInst(MI, IS, "", STI);
|
|
|
|
OS << left_justify(IS.str(), 60);
|
|
} else {
|
|
// an unrecognized encoding - this is probably data so represent it
|
|
// using the .long directive, or .byte directive if fewer than 4 bytes
|
|
// remaining
|
|
if (Bytes.size() >= 4) {
|
|
OS << format("\t.long 0x%08" PRIx32 " ",
|
|
static_cast<uint32_t>(*reinterpret_cast<const U32*>(Bytes.data())));
|
|
OS.indent(42);
|
|
} else {
|
|
OS << format("\t.byte 0x%02" PRIx8, Bytes[0]);
|
|
for (unsigned int i = 1; i < Bytes.size(); i++)
|
|
OS << format(", 0x%02" PRIx8, Bytes[i]);
|
|
OS.indent(55 - (6 * Bytes.size()));
|
|
}
|
|
}
|
|
|
|
OS << format("// %012" PRIX64 ": ", Address);
|
|
if (Bytes.size() >=4) {
|
|
for (auto D : makeArrayRef(reinterpret_cast<const U32*>(Bytes.data()),
|
|
Bytes.size() / sizeof(U32)))
|
|
// D should be explicitly casted to uint32_t here as it is passed
|
|
// by format to snprintf as vararg.
|
|
OS << format("%08" PRIX32 " ", static_cast<uint32_t>(D));
|
|
} else {
|
|
for (unsigned int i = 0; i < Bytes.size(); i++)
|
|
OS << format("%02" PRIX8 " ", Bytes[i]);
|
|
}
|
|
|
|
if (!Annot.empty())
|
|
OS << "// " << Annot;
|
|
}
|
|
};
|
|
AMDGCNPrettyPrinter AMDGCNPrettyPrinterInst;
|
|
|
|
class BPFPrettyPrinter : public PrettyPrinter {
|
|
public:
|
|
void printInst(MCInstPrinter &IP, const MCInst *MI, ArrayRef<uint8_t> Bytes,
|
|
uint64_t Address, raw_ostream &OS, StringRef Annot,
|
|
MCSubtargetInfo const &STI, SourcePrinter *SP,
|
|
std::vector<RelocationRef> *Rels) override {
|
|
if (SP && (PrintSource || PrintLines))
|
|
SP->printSourceLine(OS, Address);
|
|
if (!NoLeadingAddr)
|
|
OS << format("%8" PRId64 ":", Address / 8);
|
|
if (!NoShowRawInsn) {
|
|
OS << "\t";
|
|
dumpBytes(Bytes, OS);
|
|
}
|
|
if (MI)
|
|
IP.printInst(MI, OS, "", STI);
|
|
else
|
|
OS << " <unknown>";
|
|
}
|
|
};
|
|
BPFPrettyPrinter BPFPrettyPrinterInst;
|
|
|
|
PrettyPrinter &selectPrettyPrinter(Triple const &Triple) {
|
|
switch(Triple.getArch()) {
|
|
default:
|
|
return PrettyPrinterInst;
|
|
case Triple::hexagon:
|
|
return HexagonPrettyPrinterInst;
|
|
case Triple::amdgcn:
|
|
return AMDGCNPrettyPrinterInst;
|
|
case Triple::bpfel:
|
|
case Triple::bpfeb:
|
|
return BPFPrettyPrinterInst;
|
|
}
|
|
}
|
|
}
|
|
|
|
static uint8_t getElfSymbolType(const ObjectFile *Obj, const SymbolRef &Sym) {
|
|
assert(Obj->isELF());
|
|
if (auto *Elf32LEObj = dyn_cast<ELF32LEObjectFile>(Obj))
|
|
return Elf32LEObj->getSymbol(Sym.getRawDataRefImpl())->getType();
|
|
if (auto *Elf64LEObj = dyn_cast<ELF64LEObjectFile>(Obj))
|
|
return Elf64LEObj->getSymbol(Sym.getRawDataRefImpl())->getType();
|
|
if (auto *Elf32BEObj = dyn_cast<ELF32BEObjectFile>(Obj))
|
|
return Elf32BEObj->getSymbol(Sym.getRawDataRefImpl())->getType();
|
|
if (auto *Elf64BEObj = cast<ELF64BEObjectFile>(Obj))
|
|
return Elf64BEObj->getSymbol(Sym.getRawDataRefImpl())->getType();
|
|
llvm_unreachable("Unsupported binary format");
|
|
}
|
|
|
|
template <class ELFT> static void
|
|
addDynamicElfSymbols(const ELFObjectFile<ELFT> *Obj,
|
|
std::map<SectionRef, SectionSymbolsTy> &AllSymbols) {
|
|
for (auto Symbol : Obj->getDynamicSymbolIterators()) {
|
|
uint8_t SymbolType = Symbol.getELFType();
|
|
if (SymbolType != ELF::STT_FUNC || Symbol.getSize() == 0)
|
|
continue;
|
|
|
|
Expected<uint64_t> AddressOrErr = Symbol.getAddress();
|
|
if (!AddressOrErr)
|
|
report_error(Obj->getFileName(), AddressOrErr.takeError());
|
|
uint64_t Address = *AddressOrErr;
|
|
|
|
Expected<StringRef> Name = Symbol.getName();
|
|
if (!Name)
|
|
report_error(Obj->getFileName(), Name.takeError());
|
|
if (Name->empty())
|
|
continue;
|
|
|
|
Expected<section_iterator> SectionOrErr = Symbol.getSection();
|
|
if (!SectionOrErr)
|
|
report_error(Obj->getFileName(), SectionOrErr.takeError());
|
|
section_iterator SecI = *SectionOrErr;
|
|
if (SecI == Obj->section_end())
|
|
continue;
|
|
|
|
AllSymbols[*SecI].emplace_back(Address, *Name, SymbolType);
|
|
}
|
|
}
|
|
|
|
static void
|
|
addDynamicElfSymbols(const ObjectFile *Obj,
|
|
std::map<SectionRef, SectionSymbolsTy> &AllSymbols) {
|
|
assert(Obj->isELF());
|
|
if (auto *Elf32LEObj = dyn_cast<ELF32LEObjectFile>(Obj))
|
|
addDynamicElfSymbols(Elf32LEObj, AllSymbols);
|
|
else if (auto *Elf64LEObj = dyn_cast<ELF64LEObjectFile>(Obj))
|
|
addDynamicElfSymbols(Elf64LEObj, AllSymbols);
|
|
else if (auto *Elf32BEObj = dyn_cast<ELF32BEObjectFile>(Obj))
|
|
addDynamicElfSymbols(Elf32BEObj, AllSymbols);
|
|
else if (auto *Elf64BEObj = cast<ELF64BEObjectFile>(Obj))
|
|
addDynamicElfSymbols(Elf64BEObj, AllSymbols);
|
|
else
|
|
llvm_unreachable("Unsupported binary format");
|
|
}
|
|
|
|
static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
|
|
if (StartAddress > StopAddress)
|
|
error("Start address should be less than stop address");
|
|
|
|
const Target *TheTarget = getTarget(Obj);
|
|
|
|
// Package up features to be passed to target/subtarget
|
|
SubtargetFeatures Features = Obj->getFeatures();
|
|
if (MAttrs.size()) {
|
|
for (unsigned i = 0; i != MAttrs.size(); ++i)
|
|
Features.AddFeature(MAttrs[i]);
|
|
}
|
|
|
|
std::unique_ptr<const MCRegisterInfo> MRI(
|
|
TheTarget->createMCRegInfo(TripleName));
|
|
if (!MRI)
|
|
report_error(Obj->getFileName(), "no register info for target " +
|
|
TripleName);
|
|
|
|
// Set up disassembler.
|
|
std::unique_ptr<const MCAsmInfo> AsmInfo(
|
|
TheTarget->createMCAsmInfo(*MRI, TripleName));
|
|
if (!AsmInfo)
|
|
report_error(Obj->getFileName(), "no assembly info for target " +
|
|
TripleName);
|
|
std::unique_ptr<const MCSubtargetInfo> STI(
|
|
TheTarget->createMCSubtargetInfo(TripleName, MCPU, Features.getString()));
|
|
if (!STI)
|
|
report_error(Obj->getFileName(), "no subtarget info for target " +
|
|
TripleName);
|
|
std::unique_ptr<const MCInstrInfo> MII(TheTarget->createMCInstrInfo());
|
|
if (!MII)
|
|
report_error(Obj->getFileName(), "no instruction info for target " +
|
|
TripleName);
|
|
MCObjectFileInfo MOFI;
|
|
MCContext Ctx(AsmInfo.get(), MRI.get(), &MOFI);
|
|
// FIXME: for now initialize MCObjectFileInfo with default values
|
|
MOFI.InitMCObjectFileInfo(Triple(TripleName), false, Ctx);
|
|
|
|
std::unique_ptr<MCDisassembler> DisAsm(
|
|
TheTarget->createMCDisassembler(*STI, Ctx));
|
|
if (!DisAsm)
|
|
report_error(Obj->getFileName(), "no disassembler for target " +
|
|
TripleName);
|
|
|
|
std::unique_ptr<const MCInstrAnalysis> MIA(
|
|
TheTarget->createMCInstrAnalysis(MII.get()));
|
|
|
|
int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
|
|
std::unique_ptr<MCInstPrinter> IP(TheTarget->createMCInstPrinter(
|
|
Triple(TripleName), AsmPrinterVariant, *AsmInfo, *MII, *MRI));
|
|
if (!IP)
|
|
report_error(Obj->getFileName(), "no instruction printer for target " +
|
|
TripleName);
|
|
IP->setPrintImmHex(PrintImmHex);
|
|
PrettyPrinter &PIP = selectPrettyPrinter(Triple(TripleName));
|
|
|
|
StringRef Fmt = Obj->getBytesInAddress() > 4 ? "\t\t%016" PRIx64 ": " :
|
|
"\t\t\t%08" PRIx64 ": ";
|
|
|
|
SourcePrinter SP(Obj, TheTarget->getName());
|
|
|
|
// Create a mapping, RelocSecs = SectionRelocMap[S], where sections
|
|
// in RelocSecs contain the relocations for section S.
|
|
std::error_code EC;
|
|
std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
|
|
for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
|
|
section_iterator Sec2 = Section.getRelocatedSection();
|
|
if (Sec2 != Obj->section_end())
|
|
SectionRelocMap[*Sec2].push_back(Section);
|
|
}
|
|
|
|
// Create a mapping from virtual address to symbol name. This is used to
|
|
// pretty print the symbols while disassembling.
|
|
std::map<SectionRef, SectionSymbolsTy> AllSymbols;
|
|
SectionSymbolsTy AbsoluteSymbols;
|
|
for (const SymbolRef &Symbol : Obj->symbols()) {
|
|
Expected<uint64_t> AddressOrErr = Symbol.getAddress();
|
|
if (!AddressOrErr)
|
|
report_error(Obj->getFileName(), AddressOrErr.takeError());
|
|
uint64_t Address = *AddressOrErr;
|
|
|
|
Expected<StringRef> Name = Symbol.getName();
|
|
if (!Name)
|
|
report_error(Obj->getFileName(), Name.takeError());
|
|
if (Name->empty())
|
|
continue;
|
|
|
|
Expected<section_iterator> SectionOrErr = Symbol.getSection();
|
|
if (!SectionOrErr)
|
|
report_error(Obj->getFileName(), SectionOrErr.takeError());
|
|
|
|
uint8_t SymbolType = ELF::STT_NOTYPE;
|
|
if (Obj->isELF())
|
|
SymbolType = getElfSymbolType(Obj, Symbol);
|
|
|
|
section_iterator SecI = *SectionOrErr;
|
|
if (SecI != Obj->section_end())
|
|
AllSymbols[*SecI].emplace_back(Address, *Name, SymbolType);
|
|
else
|
|
AbsoluteSymbols.emplace_back(Address, *Name, SymbolType);
|
|
|
|
|
|
}
|
|
if (AllSymbols.empty() && Obj->isELF())
|
|
addDynamicElfSymbols(Obj, AllSymbols);
|
|
|
|
// Create a mapping from virtual address to section.
|
|
std::vector<std::pair<uint64_t, SectionRef>> SectionAddresses;
|
|
for (SectionRef Sec : Obj->sections())
|
|
SectionAddresses.emplace_back(Sec.getAddress(), Sec);
|
|
array_pod_sort(SectionAddresses.begin(), SectionAddresses.end());
|
|
|
|
// Linked executables (.exe and .dll files) typically don't include a real
|
|
// symbol table but they might contain an export table.
|
|
if (const auto *COFFObj = dyn_cast<COFFObjectFile>(Obj)) {
|
|
for (const auto &ExportEntry : COFFObj->export_directories()) {
|
|
StringRef Name;
|
|
error(ExportEntry.getSymbolName(Name));
|
|
if (Name.empty())
|
|
continue;
|
|
uint32_t RVA;
|
|
error(ExportEntry.getExportRVA(RVA));
|
|
|
|
uint64_t VA = COFFObj->getImageBase() + RVA;
|
|
auto Sec = std::upper_bound(
|
|
SectionAddresses.begin(), SectionAddresses.end(), VA,
|
|
[](uint64_t LHS, const std::pair<uint64_t, SectionRef> &RHS) {
|
|
return LHS < RHS.first;
|
|
});
|
|
if (Sec != SectionAddresses.begin())
|
|
--Sec;
|
|
else
|
|
Sec = SectionAddresses.end();
|
|
|
|
if (Sec != SectionAddresses.end())
|
|
AllSymbols[Sec->second].emplace_back(VA, Name, ELF::STT_NOTYPE);
|
|
else
|
|
AbsoluteSymbols.emplace_back(VA, Name, ELF::STT_NOTYPE);
|
|
}
|
|
}
|
|
|
|
// Sort all the symbols, this allows us to use a simple binary search to find
|
|
// a symbol near an address.
|
|
for (std::pair<const SectionRef, SectionSymbolsTy> &SecSyms : AllSymbols)
|
|
array_pod_sort(SecSyms.second.begin(), SecSyms.second.end());
|
|
array_pod_sort(AbsoluteSymbols.begin(), AbsoluteSymbols.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;
|
|
|
|
// Get the list of all the symbols in this section.
|
|
SectionSymbolsTy &Symbols = AllSymbols[Section];
|
|
std::vector<uint64_t> DataMappingSymsAddr;
|
|
std::vector<uint64_t> TextMappingSymsAddr;
|
|
if (isArmElf(Obj)) {
|
|
for (const auto &Symb : Symbols) {
|
|
uint64_t Address = std::get<0>(Symb);
|
|
StringRef Name = std::get<1>(Symb);
|
|
if (Name.startswith("$d"))
|
|
DataMappingSymsAddr.push_back(Address - SectionAddr);
|
|
if (Name.startswith("$x"))
|
|
TextMappingSymsAddr.push_back(Address - SectionAddr);
|
|
if (Name.startswith("$a"))
|
|
TextMappingSymsAddr.push_back(Address - SectionAddr);
|
|
if (Name.startswith("$t"))
|
|
TextMappingSymsAddr.push_back(Address - SectionAddr);
|
|
}
|
|
}
|
|
|
|
llvm::sort(DataMappingSymsAddr.begin(), DataMappingSymsAddr.end());
|
|
llvm::sort(TextMappingSymsAddr.begin(), TextMappingSymsAddr.end());
|
|
|
|
if (Obj->isELF() && Obj->getArch() == Triple::amdgcn) {
|
|
// AMDGPU disassembler uses symbolizer for printing labels
|
|
std::unique_ptr<MCRelocationInfo> RelInfo(
|
|
TheTarget->createMCRelocationInfo(TripleName, Ctx));
|
|
if (RelInfo) {
|
|
std::unique_ptr<MCSymbolizer> Symbolizer(
|
|
TheTarget->createMCSymbolizer(
|
|
TripleName, nullptr, nullptr, &Symbols, &Ctx, std::move(RelInfo)));
|
|
DisAsm->setSymbolizer(std::move(Symbolizer));
|
|
}
|
|
}
|
|
|
|
// Make a list of all the relocations for this section.
|
|
std::vector<RelocationRef> Rels;
|
|
if (InlineRelocs) {
|
|
for (const SectionRef &RelocSec : SectionRelocMap[Section]) {
|
|
for (const RelocationRef &Reloc : RelocSec.relocations()) {
|
|
Rels.push_back(Reloc);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Sort relocations by address.
|
|
llvm::sort(Rels.begin(), Rels.end(), RelocAddressLess);
|
|
|
|
StringRef SegmentName = "";
|
|
if (const MachOObjectFile *MachO = dyn_cast<const MachOObjectFile>(Obj)) {
|
|
DataRefImpl DR = Section.getRawDataRefImpl();
|
|
SegmentName = MachO->getSectionFinalSegmentName(DR);
|
|
}
|
|
StringRef SectionName;
|
|
error(Section.getName(SectionName));
|
|
|
|
// If the section has no symbol at the start, just insert a dummy one.
|
|
if (Symbols.empty() || std::get<0>(Symbols[0]) != 0) {
|
|
Symbols.insert(
|
|
Symbols.begin(),
|
|
std::make_tuple(SectionAddr, SectionName,
|
|
Section.isText() ? ELF::STT_FUNC : ELF::STT_OBJECT));
|
|
}
|
|
|
|
SmallString<40> Comments;
|
|
raw_svector_ostream CommentStream(Comments);
|
|
|
|
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;
|
|
bool PrintedSection = false;
|
|
|
|
std::vector<RelocationRef>::const_iterator rel_cur = Rels.begin();
|
|
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 = std::get<0>(Symbols[si]) - SectionAddr;
|
|
// The end is either the section end or the beginning of the next
|
|
// symbol.
|
|
uint64_t End =
|
|
(si == se - 1) ? SectSize : std::get<0>(Symbols[si + 1]) - SectionAddr;
|
|
// Don't try to disassemble beyond the end of section contents.
|
|
if (End > SectSize)
|
|
End = SectSize;
|
|
// If this symbol has the same address as the next symbol, then skip it.
|
|
if (Start >= End)
|
|
continue;
|
|
|
|
// Check if we need to skip symbol
|
|
// Skip if the symbol's data is not between StartAddress and StopAddress
|
|
if (End + SectionAddr < StartAddress ||
|
|
Start + SectionAddr > StopAddress) {
|
|
continue;
|
|
}
|
|
|
|
/// Skip if user requested specific symbols and this is not in the list
|
|
if (!DisasmFuncsSet.empty() &&
|
|
!DisasmFuncsSet.count(std::get<1>(Symbols[si])))
|
|
continue;
|
|
|
|
if (!PrintedSection) {
|
|
PrintedSection = true;
|
|
outs() << "Disassembly of section ";
|
|
if (!SegmentName.empty())
|
|
outs() << SegmentName << ",";
|
|
outs() << SectionName << ':';
|
|
}
|
|
|
|
// Stop disassembly at the stop address specified
|
|
if (End + SectionAddr > StopAddress)
|
|
End = StopAddress - SectionAddr;
|
|
|
|
if (Obj->isELF() && Obj->getArch() == Triple::amdgcn) {
|
|
if (std::get<2>(Symbols[si]) == ELF::STT_AMDGPU_HSA_KERNEL) {
|
|
// skip amd_kernel_code_t at the begining of kernel symbol (256 bytes)
|
|
Start += 256;
|
|
}
|
|
if (si == se - 1 ||
|
|
std::get<2>(Symbols[si + 1]) == ELF::STT_AMDGPU_HSA_KERNEL) {
|
|
// cut trailing zeroes at the end of kernel
|
|
// cut up to 256 bytes
|
|
const uint64_t EndAlign = 256;
|
|
const auto Limit = End - (std::min)(EndAlign, End - Start);
|
|
while (End > Limit &&
|
|
*reinterpret_cast<const support::ulittle32_t*>(&Bytes[End - 4]) == 0)
|
|
End -= 4;
|
|
}
|
|
}
|
|
|
|
outs() << '\n' << std::get<1>(Symbols[si]) << ":\n";
|
|
|
|
// Don't print raw contents of a virtual section. A virtual section
|
|
// doesn't have any contents in the file.
|
|
if (Section.isVirtual()) {
|
|
outs() << "...\n";
|
|
continue;
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
raw_ostream &DebugOut = DebugFlag ? dbgs() : nulls();
|
|
#else
|
|
raw_ostream &DebugOut = nulls();
|
|
#endif
|
|
|
|
for (Index = Start; Index < End; Index += Size) {
|
|
MCInst Inst;
|
|
|
|
if (Index + SectionAddr < StartAddress ||
|
|
Index + SectionAddr > StopAddress) {
|
|
// skip byte by byte till StartAddress is reached
|
|
Size = 1;
|
|
continue;
|
|
}
|
|
// AArch64 ELF binaries can interleave data and text in the
|
|
// same section. We rely on the markers introduced to
|
|
// understand what we need to dump. If the data marker is within a
|
|
// function, it is denoted as a word/short etc
|
|
if (isArmElf(Obj) && std::get<2>(Symbols[si]) != ELF::STT_OBJECT &&
|
|
!DisassembleAll) {
|
|
uint64_t Stride = 0;
|
|
|
|
auto DAI = std::lower_bound(DataMappingSymsAddr.begin(),
|
|
DataMappingSymsAddr.end(), Index);
|
|
if (DAI != DataMappingSymsAddr.end() && *DAI == Index) {
|
|
// Switch to data.
|
|
while (Index < End) {
|
|
outs() << format("%8" PRIx64 ":", SectionAddr + Index);
|
|
outs() << "\t";
|
|
if (Index + 4 <= End) {
|
|
Stride = 4;
|
|
dumpBytes(Bytes.slice(Index, 4), outs());
|
|
outs() << "\t.word\t";
|
|
uint32_t Data = 0;
|
|
if (Obj->isLittleEndian()) {
|
|
const auto Word =
|
|
reinterpret_cast<const support::ulittle32_t *>(
|
|
Bytes.data() + Index);
|
|
Data = *Word;
|
|
} else {
|
|
const auto Word = reinterpret_cast<const support::ubig32_t *>(
|
|
Bytes.data() + Index);
|
|
Data = *Word;
|
|
}
|
|
outs() << "0x" << format("%08" PRIx32, Data);
|
|
} else if (Index + 2 <= End) {
|
|
Stride = 2;
|
|
dumpBytes(Bytes.slice(Index, 2), outs());
|
|
outs() << "\t\t.short\t";
|
|
uint16_t Data = 0;
|
|
if (Obj->isLittleEndian()) {
|
|
const auto Short =
|
|
reinterpret_cast<const support::ulittle16_t *>(
|
|
Bytes.data() + Index);
|
|
Data = *Short;
|
|
} else {
|
|
const auto Short =
|
|
reinterpret_cast<const support::ubig16_t *>(Bytes.data() +
|
|
Index);
|
|
Data = *Short;
|
|
}
|
|
outs() << "0x" << format("%04" PRIx16, Data);
|
|
} else {
|
|
Stride = 1;
|
|
dumpBytes(Bytes.slice(Index, 1), outs());
|
|
outs() << "\t\t.byte\t";
|
|
outs() << "0x" << format("%02" PRIx8, Bytes.slice(Index, 1)[0]);
|
|
}
|
|
Index += Stride;
|
|
outs() << "\n";
|
|
auto TAI = std::lower_bound(TextMappingSymsAddr.begin(),
|
|
TextMappingSymsAddr.end(), Index);
|
|
if (TAI != TextMappingSymsAddr.end() && *TAI == Index)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If there is a data symbol inside an ELF text section and we are only
|
|
// disassembling text (applicable all architectures),
|
|
// we are in a situation where we must print the data and not
|
|
// disassemble it.
|
|
if (Obj->isELF() && std::get<2>(Symbols[si]) == ELF::STT_OBJECT &&
|
|
!DisassembleAll && Section.isText()) {
|
|
// print out data up to 8 bytes at a time in hex and ascii
|
|
uint8_t AsciiData[9] = {'\0'};
|
|
uint8_t Byte;
|
|
int NumBytes = 0;
|
|
|
|
for (Index = Start; Index < End; Index += 1) {
|
|
if (((SectionAddr + Index) < StartAddress) ||
|
|
((SectionAddr + Index) > StopAddress))
|
|
continue;
|
|
if (NumBytes == 0) {
|
|
outs() << format("%8" PRIx64 ":", SectionAddr + Index);
|
|
outs() << "\t";
|
|
}
|
|
Byte = Bytes.slice(Index)[0];
|
|
outs() << format(" %02x", Byte);
|
|
AsciiData[NumBytes] = isprint(Byte) ? Byte : '.';
|
|
|
|
uint8_t IndentOffset = 0;
|
|
NumBytes++;
|
|
if (Index == End - 1 || NumBytes > 8) {
|
|
// Indent the space for less than 8 bytes data.
|
|
// 2 spaces for byte and one for space between bytes
|
|
IndentOffset = 3 * (8 - NumBytes);
|
|
for (int Excess = 8 - NumBytes; Excess < 8; Excess++)
|
|
AsciiData[Excess] = '\0';
|
|
NumBytes = 8;
|
|
}
|
|
if (NumBytes == 8) {
|
|
AsciiData[8] = '\0';
|
|
outs() << std::string(IndentOffset, ' ') << " ";
|
|
outs() << reinterpret_cast<char *>(AsciiData);
|
|
outs() << '\n';
|
|
NumBytes = 0;
|
|
}
|
|
}
|
|
}
|
|
if (Index >= End)
|
|
break;
|
|
|
|
// Disassemble a real instruction or a data when disassemble all is
|
|
// provided
|
|
bool Disassembled = DisAsm->getInstruction(Inst, Size, Bytes.slice(Index),
|
|
SectionAddr + Index, DebugOut,
|
|
CommentStream);
|
|
if (Size == 0)
|
|
Size = 1;
|
|
|
|
PIP.printInst(*IP, Disassembled ? &Inst : nullptr,
|
|
Bytes.slice(Index, Size), SectionAddr + Index, outs(), "",
|
|
*STI, &SP, &Rels);
|
|
outs() << CommentStream.str();
|
|
Comments.clear();
|
|
|
|
// Try to resolve the target of a call, tail call, etc. to a specific
|
|
// symbol.
|
|
if (MIA && (MIA->isCall(Inst) || MIA->isUnconditionalBranch(Inst) ||
|
|
MIA->isConditionalBranch(Inst))) {
|
|
uint64_t Target;
|
|
if (MIA->evaluateBranch(Inst, SectionAddr + Index, Size, Target)) {
|
|
// In a relocatable object, the target's section must reside in
|
|
// the same section as the call instruction or it is accessed
|
|
// through a relocation.
|
|
//
|
|
// In a non-relocatable object, the target may be in any section.
|
|
//
|
|
// N.B. We don't walk the relocations in the relocatable case yet.
|
|
auto *TargetSectionSymbols = &Symbols;
|
|
if (!Obj->isRelocatableObject()) {
|
|
auto SectionAddress = std::upper_bound(
|
|
SectionAddresses.begin(), SectionAddresses.end(), Target,
|
|
[](uint64_t LHS,
|
|
const std::pair<uint64_t, SectionRef> &RHS) {
|
|
return LHS < RHS.first;
|
|
});
|
|
if (SectionAddress != SectionAddresses.begin()) {
|
|
--SectionAddress;
|
|
TargetSectionSymbols = &AllSymbols[SectionAddress->second];
|
|
} else {
|
|
TargetSectionSymbols = &AbsoluteSymbols;
|
|
}
|
|
}
|
|
|
|
// Find the first symbol in the section whose offset is less than
|
|
// or equal to the target. If there isn't a section that contains
|
|
// the target, find the nearest preceding absolute symbol.
|
|
auto TargetSym = std::upper_bound(
|
|
TargetSectionSymbols->begin(), TargetSectionSymbols->end(),
|
|
Target, [](uint64_t LHS,
|
|
const std::tuple<uint64_t, StringRef, uint8_t> &RHS) {
|
|
return LHS < std::get<0>(RHS);
|
|
});
|
|
if (TargetSym == TargetSectionSymbols->begin()) {
|
|
TargetSectionSymbols = &AbsoluteSymbols;
|
|
TargetSym = std::upper_bound(
|
|
AbsoluteSymbols.begin(), AbsoluteSymbols.end(),
|
|
Target, [](uint64_t LHS,
|
|
const std::tuple<uint64_t, StringRef, uint8_t> &RHS) {
|
|
return LHS < std::get<0>(RHS);
|
|
});
|
|
}
|
|
if (TargetSym != TargetSectionSymbols->begin()) {
|
|
--TargetSym;
|
|
uint64_t TargetAddress = std::get<0>(*TargetSym);
|
|
StringRef TargetName = std::get<1>(*TargetSym);
|
|
outs() << " <" << TargetName;
|
|
uint64_t Disp = Target - TargetAddress;
|
|
if (Disp)
|
|
outs() << "+0x" << Twine::utohexstr(Disp);
|
|
outs() << '>';
|
|
}
|
|
}
|
|
}
|
|
outs() << "\n";
|
|
|
|
// Hexagon does this in pretty printer
|
|
if (Obj->getArch() != Triple::hexagon)
|
|
// Print relocation for instruction.
|
|
while (rel_cur != rel_end) {
|
|
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 (hidden || ((SectionAddr + addr) < StartAddress)) {
|
|
++rel_cur;
|
|
continue;
|
|
}
|
|
|
|
// Stop when rel_cur's address is past the current instruction.
|
|
if (addr >= Index + Size) break;
|
|
rel_cur->getTypeName(name);
|
|
error(getRelocationValueString(*rel_cur, val));
|
|
outs() << format(Fmt.data(), SectionAddr + addr) << name
|
|
<< "\t" << val << "\n";
|
|
++rel_cur;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void llvm::PrintRelocations(const ObjectFile *Obj) {
|
|
StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 :
|
|
"%08" PRIx64;
|
|
// 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;
|
|
error(Section.getName(secname));
|
|
outs() << "RELOCATION RECORDS FOR [" << secname << "]:\n";
|
|
for (const RelocationRef &Reloc : Section.relocations()) {
|
|
bool hidden = getHidden(Reloc);
|
|
uint64_t address = Reloc.getOffset();
|
|
SmallString<32> relocname;
|
|
SmallString<32> valuestr;
|
|
if (address < StartAddress || address > StopAddress || hidden)
|
|
continue;
|
|
Reloc.getTypeName(relocname);
|
|
error(getRelocationValueString(Reloc, valuestr));
|
|
outs() << format(Fmt.data(), address) << " " << relocname << " "
|
|
<< valuestr << "\n";
|
|
}
|
|
outs() << "\n";
|
|
}
|
|
}
|
|
|
|
void llvm::PrintDynamicRelocations(const ObjectFile *Obj) {
|
|
|
|
// For the moment, this option is for ELF only
|
|
if (!Obj->isELF())
|
|
return;
|
|
|
|
const auto *Elf = dyn_cast<ELFObjectFileBase>(Obj);
|
|
|
|
if (!Elf || Elf->getEType() != ELF::ET_DYN) {
|
|
error("not a dynamic object");
|
|
return;
|
|
}
|
|
|
|
StringRef Fmt = Obj->getBytesInAddress() > 4 ? "%016" PRIx64 : "%08" PRIx64;
|
|
|
|
std::vector<SectionRef> DynRelSec = Obj->dynamic_relocation_sections();
|
|
if (DynRelSec.empty())
|
|
return;
|
|
|
|
outs() << "DYNAMIC RELOCATION RECORDS\n";
|
|
for (const SectionRef &Section : DynRelSec) {
|
|
if (Section.relocation_begin() == Section.relocation_end())
|
|
continue;
|
|
for (const RelocationRef &Reloc : Section.relocations()) {
|
|
uint64_t address = Reloc.getOffset();
|
|
SmallString<32> relocname;
|
|
SmallString<32> valuestr;
|
|
Reloc.getTypeName(relocname);
|
|
error(getRelocationValueString(Reloc, valuestr));
|
|
outs() << format(Fmt.data(), address) << " " << relocname << " "
|
|
<< valuestr << "\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
void llvm::PrintSectionHeaders(const ObjectFile *Obj) {
|
|
outs() << "Sections:\n"
|
|
"Idx Name Size Address Type\n";
|
|
for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
|
|
StringRef Name;
|
|
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",
|
|
(unsigned)Section.getIndex(), Name.str().c_str(), Size,
|
|
Address, Type.c_str());
|
|
}
|
|
}
|
|
|
|
void llvm::PrintSectionContents(const ObjectFile *Obj) {
|
|
std::error_code EC;
|
|
for (const SectionRef &Section : ToolSectionFilter(*Obj)) {
|
|
StringRef Name;
|
|
StringRef Contents;
|
|
error(Section.getName(Name));
|
|
uint64_t BaseAddr = Section.getAddress();
|
|
uint64_t Size = Section.getSize();
|
|
if (!Size)
|
|
continue;
|
|
|
|
outs() << "Contents of section " << Name << ":\n";
|
|
if (Section.isBSS()) {
|
|
outs() << format("<skipping contents of bss section at [%04" PRIx64
|
|
", %04" PRIx64 ")>\n",
|
|
BaseAddr, BaseAddr + Size);
|
|
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) {
|
|
outs() << format(" %04" PRIx64 " ", BaseAddr + addr);
|
|
// Dump line of hex.
|
|
for (std::size_t i = 0; i < 16; ++i) {
|
|
if (i != 0 && i % 4 == 0)
|
|
outs() << ' ';
|
|
if (addr + i < end)
|
|
outs() << hexdigit((Contents[addr + i] >> 4) & 0xF, true)
|
|
<< hexdigit(Contents[addr + i] & 0xF, true);
|
|
else
|
|
outs() << " ";
|
|
}
|
|
// Print ascii.
|
|
outs() << " ";
|
|
for (std::size_t i = 0; i < 16 && addr + i < end; ++i) {
|
|
if (std::isprint(static_cast<unsigned char>(Contents[addr + i]) & 0xFF))
|
|
outs() << Contents[addr + i];
|
|
else
|
|
outs() << ".";
|
|
}
|
|
outs() << "\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
void llvm::PrintSymbolTable(const ObjectFile *o, StringRef ArchiveName,
|
|
StringRef ArchitectureName) {
|
|
outs() << "SYMBOL TABLE:\n";
|
|
|
|
if (const COFFObjectFile *coff = dyn_cast<const COFFObjectFile>(o)) {
|
|
printCOFFSymbolTable(coff);
|
|
return;
|
|
}
|
|
for (const SymbolRef &Symbol : o->symbols()) {
|
|
Expected<uint64_t> AddressOrError = Symbol.getAddress();
|
|
if (!AddressOrError)
|
|
report_error(ArchiveName, o->getFileName(), AddressOrError.takeError(),
|
|
ArchitectureName);
|
|
uint64_t Address = *AddressOrError;
|
|
if ((Address < StartAddress) || (Address > StopAddress))
|
|
continue;
|
|
Expected<SymbolRef::Type> TypeOrError = Symbol.getType();
|
|
if (!TypeOrError)
|
|
report_error(ArchiveName, o->getFileName(), TypeOrError.takeError(),
|
|
ArchitectureName);
|
|
SymbolRef::Type Type = *TypeOrError;
|
|
uint32_t Flags = Symbol.getFlags();
|
|
Expected<section_iterator> SectionOrErr = Symbol.getSection();
|
|
if (!SectionOrErr)
|
|
report_error(ArchiveName, o->getFileName(), SectionOrErr.takeError(),
|
|
ArchitectureName);
|
|
section_iterator Section = *SectionOrErr;
|
|
StringRef Name;
|
|
if (Type == SymbolRef::ST_Debug && Section != o->section_end()) {
|
|
Section->getName(Name);
|
|
} else {
|
|
Expected<StringRef> NameOrErr = Symbol.getName();
|
|
if (!NameOrErr)
|
|
report_error(ArchiveName, o->getFileName(), NameOrErr.takeError(),
|
|
ArchitectureName);
|
|
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;
|
|
|
|
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 (Common) {
|
|
outs() << "*COM*";
|
|
} 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 << ",";
|
|
}
|
|
StringRef SectionName;
|
|
error(Section->getName(SectionName));
|
|
outs() << SectionName;
|
|
}
|
|
|
|
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';
|
|
}
|
|
}
|
|
|
|
static void PrintUnwindInfo(const ObjectFile *o) {
|
|
outs() << "Unwind info:\n\n";
|
|
|
|
if (const COFFObjectFile *coff = dyn_cast<COFFObjectFile>(o)) {
|
|
printCOFFUnwindInfo(coff);
|
|
} 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 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(ObjectFile *o) {
|
|
outs() << "Rebase table:\n";
|
|
if (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(ObjectFile *o) {
|
|
outs() << "Bind table:\n";
|
|
if (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(ObjectFile *o) {
|
|
outs() << "Lazy bind table:\n";
|
|
if (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(ObjectFile *o) {
|
|
outs() << "Weak bind table:\n";
|
|
if (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 printPrivateFileHeaders(const ObjectFile *o, bool onlyFirst) {
|
|
if (o->isELF())
|
|
return printELFFileHeader(o);
|
|
if (o->isCOFF())
|
|
return printCOFFFileHeader(o);
|
|
if (o->isWasm())
|
|
return printWasmFileHeader(o);
|
|
if (o->isMachO()) {
|
|
printMachOFileHeader(o);
|
|
if (!onlyFirst)
|
|
printMachOLoadCommands(o);
|
|
return;
|
|
}
|
|
report_error(o->getFileName(), "Invalid/Unsupported object file format");
|
|
}
|
|
|
|
static void printFileHeaders(const ObjectFile *o) {
|
|
if (!o->isELF() && !o->isCOFF())
|
|
report_error(o->getFileName(), "Invalid/Unsupported object file format");
|
|
|
|
Triple::ArchType AT = o->getArch();
|
|
outs() << "architecture: " << Triple::getArchTypeName(AT) << "\n";
|
|
Expected<uint64_t> StartAddrOrErr = o->getStartAddress();
|
|
if (!StartAddrOrErr)
|
|
report_error(o->getFileName(), StartAddrOrErr.takeError());
|
|
outs() << "start address: "
|
|
<< format("0x%0*x", o->getBytesInAddress(), StartAddrOrErr.get())
|
|
<< "\n";
|
|
}
|
|
|
|
static void printArchiveChild(StringRef Filename, const Archive::Child &C) {
|
|
Expected<sys::fs::perms> ModeOrErr = C.getAccessMode();
|
|
if (!ModeOrErr) {
|
|
errs() << "ill-formed archive entry.\n";
|
|
consumeError(ModeOrErr.takeError());
|
|
return;
|
|
}
|
|
sys::fs::perms Mode = ModeOrErr.get();
|
|
outs() << ((Mode & sys::fs::owner_read) ? "r" : "-");
|
|
outs() << ((Mode & sys::fs::owner_write) ? "w" : "-");
|
|
outs() << ((Mode & sys::fs::owner_exe) ? "x" : "-");
|
|
outs() << ((Mode & sys::fs::group_read) ? "r" : "-");
|
|
outs() << ((Mode & sys::fs::group_write) ? "w" : "-");
|
|
outs() << ((Mode & sys::fs::group_exe) ? "x" : "-");
|
|
outs() << ((Mode & sys::fs::others_read) ? "r" : "-");
|
|
outs() << ((Mode & sys::fs::others_write) ? "w" : "-");
|
|
outs() << ((Mode & sys::fs::others_exe) ? "x" : "-");
|
|
|
|
outs() << " ";
|
|
|
|
Expected<unsigned> UIDOrErr = C.getUID();
|
|
if (!UIDOrErr)
|
|
report_error(Filename, UIDOrErr.takeError());
|
|
unsigned UID = UIDOrErr.get();
|
|
outs() << format("%d/", UID);
|
|
|
|
Expected<unsigned> GIDOrErr = C.getGID();
|
|
if (!GIDOrErr)
|
|
report_error(Filename, GIDOrErr.takeError());
|
|
unsigned GID = GIDOrErr.get();
|
|
outs() << format("%-d ", GID);
|
|
|
|
Expected<uint64_t> Size = C.getRawSize();
|
|
if (!Size)
|
|
report_error(Filename, Size.takeError());
|
|
outs() << format("%6" PRId64, Size.get()) << " ";
|
|
|
|
StringRef RawLastModified = C.getRawLastModified();
|
|
unsigned Seconds;
|
|
if (RawLastModified.getAsInteger(10, Seconds))
|
|
outs() << "(date: \"" << RawLastModified
|
|
<< "\" contains non-decimal chars) ";
|
|
else {
|
|
// Since ctime(3) returns a 26 character string of the form:
|
|
// "Sun Sep 16 01:03:52 1973\n\0"
|
|
// just print 24 characters.
|
|
time_t t = Seconds;
|
|
outs() << format("%.24s ", ctime(&t));
|
|
}
|
|
|
|
StringRef Name = "";
|
|
Expected<StringRef> NameOrErr = C.getName();
|
|
if (!NameOrErr) {
|
|
consumeError(NameOrErr.takeError());
|
|
Expected<StringRef> RawNameOrErr = C.getRawName();
|
|
if (!RawNameOrErr)
|
|
report_error(Filename, NameOrErr.takeError());
|
|
Name = RawNameOrErr.get();
|
|
} else {
|
|
Name = NameOrErr.get();
|
|
}
|
|
outs() << Name << "\n";
|
|
}
|
|
|
|
static void DumpObject(ObjectFile *o, const Archive *a = nullptr,
|
|
const Archive::Child *c = nullptr) {
|
|
StringRef ArchiveName = a != nullptr ? a->getFileName() : "";
|
|
// Avoid other output when using a raw option.
|
|
if (!RawClangAST) {
|
|
outs() << '\n';
|
|
if (a)
|
|
outs() << a->getFileName() << "(" << o->getFileName() << ")";
|
|
else
|
|
outs() << o->getFileName();
|
|
outs() << ":\tfile format " << o->getFileFormatName() << "\n\n";
|
|
}
|
|
|
|
if (ArchiveHeaders && !MachOOpt)
|
|
printArchiveChild(a->getFileName(), *c);
|
|
if (Disassemble)
|
|
DisassembleObject(o, Relocations);
|
|
if (Relocations && !Disassemble)
|
|
PrintRelocations(o);
|
|
if (DynamicRelocations)
|
|
PrintDynamicRelocations(o);
|
|
if (SectionHeaders)
|
|
PrintSectionHeaders(o);
|
|
if (SectionContents)
|
|
PrintSectionContents(o);
|
|
if (SymbolTable)
|
|
PrintSymbolTable(o, ArchiveName);
|
|
if (UnwindInfo)
|
|
PrintUnwindInfo(o);
|
|
if (PrivateHeaders || FirstPrivateHeader)
|
|
printPrivateFileHeaders(o, FirstPrivateHeader);
|
|
if (FileHeaders)
|
|
printFileHeaders(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);
|
|
if (DwarfDumpType != DIDT_Null) {
|
|
std::unique_ptr<DIContext> DICtx = DWARFContext::create(*o);
|
|
// Dump the complete DWARF structure.
|
|
DIDumpOptions DumpOpts;
|
|
DumpOpts.DumpType = DwarfDumpType;
|
|
DICtx->dump(outs(), DumpOpts);
|
|
}
|
|
}
|
|
|
|
static void DumpObject(const COFFImportFile *I, const Archive *A,
|
|
const Archive::Child *C = nullptr) {
|
|
StringRef ArchiveName = A ? A->getFileName() : "";
|
|
|
|
// Avoid other output when using a raw option.
|
|
if (!RawClangAST)
|
|
outs() << '\n'
|
|
<< ArchiveName << "(" << I->getFileName() << ")"
|
|
<< ":\tfile format COFF-import-file"
|
|
<< "\n\n";
|
|
|
|
if (ArchiveHeaders && !MachOOpt)
|
|
printArchiveChild(A->getFileName(), *C);
|
|
if (SymbolTable)
|
|
printCOFFSymbolTable(I);
|
|
}
|
|
|
|
/// Dump each object file in \a a;
|
|
static void DumpArchive(const Archive *a) {
|
|
Error Err = Error::success();
|
|
for (auto &C : a->children(Err)) {
|
|
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
|
|
if (!ChildOrErr) {
|
|
if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError()))
|
|
report_error(a->getFileName(), C, std::move(E));
|
|
continue;
|
|
}
|
|
if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
|
|
DumpObject(o, a, &C);
|
|
else if (COFFImportFile *I = dyn_cast<COFFImportFile>(&*ChildOrErr.get()))
|
|
DumpObject(I, a, &C);
|
|
else
|
|
report_error(a->getFileName(), object_error::invalid_file_type);
|
|
}
|
|
if (Err)
|
|
report_error(a->getFileName(), std::move(Err));
|
|
}
|
|
|
|
/// Open file and figure out how to dump it.
|
|
static void DumpInput(StringRef file) {
|
|
|
|
// 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.
|
|
Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(file);
|
|
if (!BinaryOrErr)
|
|
report_error(file, BinaryOrErr.takeError());
|
|
Binary &Binary = *BinaryOrErr.get().getBinary();
|
|
|
|
if (Archive *a = dyn_cast<Archive>(&Binary))
|
|
DumpArchive(a);
|
|
else if (ObjectFile *o = dyn_cast<ObjectFile>(&Binary))
|
|
DumpObject(o);
|
|
else
|
|
report_error(file, object_error::invalid_file_type);
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
InitLLVM X(argc, argv);
|
|
|
|
// Initialize targets and assembly printers/parsers.
|
|
llvm::InitializeAllTargetInfos();
|
|
llvm::InitializeAllTargetMCs();
|
|
llvm::InitializeAllDisassemblers();
|
|
|
|
// Register the target printer for --version.
|
|
cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
|
|
|
|
cl::ParseCommandLineOptions(argc, argv, "llvm object file dumper\n");
|
|
TripleName = Triple::normalize(TripleName);
|
|
|
|
ToolName = argv[0];
|
|
|
|
// Defaults to a.out if no filenames specified.
|
|
if (InputFilenames.size() == 0)
|
|
InputFilenames.push_back("a.out");
|
|
|
|
if (AllHeaders)
|
|
PrivateHeaders = Relocations = SectionHeaders = SymbolTable = true;
|
|
|
|
if (DisassembleAll || PrintSource || PrintLines)
|
|
Disassemble = true;
|
|
if (!Disassemble
|
|
&& !Relocations
|
|
&& !DynamicRelocations
|
|
&& !SectionHeaders
|
|
&& !SectionContents
|
|
&& !SymbolTable
|
|
&& !UnwindInfo
|
|
&& !PrivateHeaders
|
|
&& !FileHeaders
|
|
&& !FirstPrivateHeader
|
|
&& !ExportsTrie
|
|
&& !Rebase
|
|
&& !Bind
|
|
&& !LazyBind
|
|
&& !WeakBind
|
|
&& !RawClangAST
|
|
&& !(UniversalHeaders && MachOOpt)
|
|
&& !ArchiveHeaders
|
|
&& !(IndirectSymbols && MachOOpt)
|
|
&& !(DataInCode && MachOOpt)
|
|
&& !(LinkOptHints && MachOOpt)
|
|
&& !(InfoPlist && MachOOpt)
|
|
&& !(DylibsUsed && MachOOpt)
|
|
&& !(DylibId && MachOOpt)
|
|
&& !(ObjcMetaData && MachOOpt)
|
|
&& !(FilterSections.size() != 0 && MachOOpt)
|
|
&& !PrintFaultMaps
|
|
&& DwarfDumpType == DIDT_Null) {
|
|
cl::PrintHelpMessage();
|
|
return 2;
|
|
}
|
|
|
|
DisasmFuncsSet.insert(DisassembleFunctions.begin(),
|
|
DisassembleFunctions.end());
|
|
|
|
llvm::for_each(InputFilenames, DumpInput);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|