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-rw-r--r--contrib/llvm/tools/llvm-nm/llvm-nm.cpp1304
1 files changed, 1304 insertions, 0 deletions
diff --git a/contrib/llvm/tools/llvm-nm/llvm-nm.cpp b/contrib/llvm/tools/llvm-nm/llvm-nm.cpp
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+++ b/contrib/llvm/tools/llvm-nm/llvm-nm.cpp
@@ -0,0 +1,1304 @@
+//===-- llvm-nm.cpp - Symbol table dumping utility for llvm ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This program is a utility that works like traditional Unix "nm", that is, it
+// prints out the names of symbols in a bitcode or object file, along with some
+// information about each symbol.
+//
+// This "nm" supports many of the features of GNU "nm", including its different
+// output formats.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/IR/Function.h"
+#include "llvm/IR/GlobalAlias.h"
+#include "llvm/IR/GlobalVariable.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Object/COFF.h"
+#include "llvm/Object/ELFObjectFile.h"
+#include "llvm/Object/IRObjectFile.h"
+#include "llvm/Object/MachO.h"
+#include "llvm/Object/MachOUniversal.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/COFF.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Program.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/TargetSelect.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <cctype>
+#include <cerrno>
+#include <cstring>
+#include <system_error>
+#include <vector>
+
+using namespace llvm;
+using namespace object;
+
+namespace {
+enum OutputFormatTy { bsd, sysv, posix, darwin };
+cl::opt<OutputFormatTy> OutputFormat(
+ "format", cl::desc("Specify output format"),
+ cl::values(clEnumVal(bsd, "BSD format"), clEnumVal(sysv, "System V format"),
+ clEnumVal(posix, "POSIX.2 format"),
+ clEnumVal(darwin, "Darwin -m format"), clEnumValEnd),
+ cl::init(bsd));
+cl::alias OutputFormat2("f", cl::desc("Alias for --format"),
+ cl::aliasopt(OutputFormat));
+
+cl::list<std::string> InputFilenames(cl::Positional, cl::desc("<input files>"),
+ cl::ZeroOrMore);
+
+cl::opt<bool> UndefinedOnly("undefined-only",
+ cl::desc("Show only undefined symbols"));
+cl::alias UndefinedOnly2("u", cl::desc("Alias for --undefined-only"),
+ cl::aliasopt(UndefinedOnly), cl::Grouping);
+
+cl::opt<bool> DynamicSyms("dynamic",
+ cl::desc("Display the dynamic symbols instead "
+ "of normal symbols."));
+cl::alias DynamicSyms2("D", cl::desc("Alias for --dynamic"),
+ cl::aliasopt(DynamicSyms), cl::Grouping);
+
+cl::opt<bool> DefinedOnly("defined-only",
+ cl::desc("Show only defined symbols"));
+cl::alias DefinedOnly2("U", cl::desc("Alias for --defined-only"),
+ cl::aliasopt(DefinedOnly), cl::Grouping);
+
+cl::opt<bool> ExternalOnly("extern-only",
+ cl::desc("Show only external symbols"));
+cl::alias ExternalOnly2("g", cl::desc("Alias for --extern-only"),
+ cl::aliasopt(ExternalOnly), cl::Grouping);
+
+cl::opt<bool> BSDFormat("B", cl::desc("Alias for --format=bsd"),
+ cl::Grouping);
+cl::opt<bool> POSIXFormat("P", cl::desc("Alias for --format=posix"),
+ cl::Grouping);
+cl::opt<bool> DarwinFormat("m", cl::desc("Alias for --format=darwin"),
+ cl::Grouping);
+
+static cl::list<std::string>
+ ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
+ cl::ZeroOrMore);
+bool ArchAll = false;
+
+cl::opt<bool> PrintFileName(
+ "print-file-name",
+ cl::desc("Precede each symbol with the object file it came from"));
+
+cl::alias PrintFileNameA("A", cl::desc("Alias for --print-file-name"),
+ cl::aliasopt(PrintFileName), cl::Grouping);
+cl::alias PrintFileNameo("o", cl::desc("Alias for --print-file-name"),
+ cl::aliasopt(PrintFileName), cl::Grouping);
+
+cl::opt<bool> DebugSyms("debug-syms",
+ cl::desc("Show all symbols, even debugger only"));
+cl::alias DebugSymsa("a", cl::desc("Alias for --debug-syms"),
+ cl::aliasopt(DebugSyms), cl::Grouping);
+
+cl::opt<bool> NumericSort("numeric-sort", cl::desc("Sort symbols by address"));
+cl::alias NumericSortn("n", cl::desc("Alias for --numeric-sort"),
+ cl::aliasopt(NumericSort), cl::Grouping);
+cl::alias NumericSortv("v", cl::desc("Alias for --numeric-sort"),
+ cl::aliasopt(NumericSort), cl::Grouping);
+
+cl::opt<bool> NoSort("no-sort", cl::desc("Show symbols in order encountered"));
+cl::alias NoSortp("p", cl::desc("Alias for --no-sort"), cl::aliasopt(NoSort),
+ cl::Grouping);
+
+cl::opt<bool> ReverseSort("reverse-sort", cl::desc("Sort in reverse order"));
+cl::alias ReverseSortr("r", cl::desc("Alias for --reverse-sort"),
+ cl::aliasopt(ReverseSort), cl::Grouping);
+
+cl::opt<bool> PrintSize("print-size",
+ cl::desc("Show symbol size instead of address"));
+cl::alias PrintSizeS("S", cl::desc("Alias for --print-size"),
+ cl::aliasopt(PrintSize), cl::Grouping);
+
+cl::opt<bool> SizeSort("size-sort", cl::desc("Sort symbols by size"));
+
+cl::opt<bool> WithoutAliases("without-aliases", cl::Hidden,
+ cl::desc("Exclude aliases from output"));
+
+cl::opt<bool> ArchiveMap("print-armap", cl::desc("Print the archive map"));
+cl::alias ArchiveMaps("M", cl::desc("Alias for --print-armap"),
+ cl::aliasopt(ArchiveMap), cl::Grouping);
+
+cl::opt<bool> JustSymbolName("just-symbol-name",
+ cl::desc("Print just the symbol's name"));
+cl::alias JustSymbolNames("j", cl::desc("Alias for --just-symbol-name"),
+ cl::aliasopt(JustSymbolName), cl::Grouping);
+
+// FIXME: This option takes exactly two strings and should be allowed anywhere
+// on the command line. Such that "llvm-nm -s __TEXT __text foo.o" would work.
+// But that does not as the CommandLine Library does not have a way to make
+// this work. For now the "-s __TEXT __text" has to be last on the command
+// line.
+cl::list<std::string> SegSect("s", cl::Positional, cl::ZeroOrMore,
+ cl::desc("Dump only symbols from this segment "
+ "and section name, Mach-O only"));
+
+cl::opt<bool> FormatMachOasHex("x", cl::desc("Print symbol entry in hex, "
+ "Mach-O only"), cl::Grouping);
+
+cl::opt<bool> NoLLVMBitcode("no-llvm-bc",
+ cl::desc("Disable LLVM bitcode reader"));
+
+bool PrintAddress = true;
+
+bool MultipleFiles = false;
+
+bool HadError = false;
+
+std::string ToolName;
+} // anonymous namespace
+
+static void error(Twine Message, Twine Path = Twine()) {
+ HadError = true;
+ errs() << ToolName << ": " << Path << ": " << Message << ".\n";
+}
+
+static bool error(std::error_code EC, Twine Path = Twine()) {
+ if (EC) {
+ error(EC.message(), Path);
+ return true;
+ }
+ return false;
+}
+
+namespace {
+struct NMSymbol {
+ uint64_t Address;
+ uint64_t Size;
+ char TypeChar;
+ StringRef Name;
+ BasicSymbolRef Sym;
+};
+} // anonymous namespace
+
+static bool compareSymbolAddress(const NMSymbol &A, const NMSymbol &B) {
+ bool ADefined = !(A.Sym.getFlags() & SymbolRef::SF_Undefined);
+ bool BDefined = !(B.Sym.getFlags() & SymbolRef::SF_Undefined);
+ return std::make_tuple(ADefined, A.Address, A.Name, A.Size) <
+ std::make_tuple(BDefined, B.Address, B.Name, B.Size);
+}
+
+static bool compareSymbolSize(const NMSymbol &A, const NMSymbol &B) {
+ return std::make_tuple(A.Size, A.Name, A.Address) <
+ std::make_tuple(B.Size, B.Name, B.Address);
+}
+
+static bool compareSymbolName(const NMSymbol &A, const NMSymbol &B) {
+ return std::make_tuple(A.Name, A.Size, A.Address) <
+ std::make_tuple(B.Name, B.Size, B.Address);
+}
+
+static char isSymbolList64Bit(SymbolicFile &Obj) {
+ if (isa<IRObjectFile>(Obj)) {
+ IRObjectFile *IRobj = dyn_cast<IRObjectFile>(&Obj);
+ Module &M = IRobj->getModule();
+ if (M.getTargetTriple().empty())
+ return false;
+ Triple T(M.getTargetTriple());
+ return T.isArch64Bit();
+ }
+ if (isa<COFFObjectFile>(Obj))
+ return false;
+ if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(&Obj))
+ return MachO->is64Bit();
+ return cast<ELFObjectFileBase>(Obj).getBytesInAddress() == 8;
+}
+
+static StringRef CurrentFilename;
+typedef std::vector<NMSymbol> SymbolListT;
+static SymbolListT SymbolList;
+
+static char getSymbolNMTypeChar(IRObjectFile &Obj, basic_symbol_iterator I);
+
+// darwinPrintSymbol() is used to print a symbol from a Mach-O file when the
+// the OutputFormat is darwin or we are printing Mach-O symbols in hex. For
+// the darwin format it produces the same output as darwin's nm(1) -m output
+// and when printing Mach-O symbols in hex it produces the same output as
+// darwin's nm(1) -x format.
+static void darwinPrintSymbol(SymbolicFile &Obj, SymbolListT::iterator I,
+ char *SymbolAddrStr, const char *printBlanks,
+ const char *printDashes, const char *printFormat) {
+ MachO::mach_header H;
+ MachO::mach_header_64 H_64;
+ uint32_t Filetype = MachO::MH_OBJECT;
+ uint32_t Flags = 0;
+ uint8_t NType = 0;
+ uint8_t NSect = 0;
+ uint16_t NDesc = 0;
+ uint32_t NStrx = 0;
+ uint64_t NValue = 0;
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(&Obj);
+ if (Obj.isIR()) {
+ uint32_t SymFlags = I->Sym.getFlags();
+ if (SymFlags & SymbolRef::SF_Global)
+ NType |= MachO::N_EXT;
+ if (SymFlags & SymbolRef::SF_Hidden)
+ NType |= MachO::N_PEXT;
+ if (SymFlags & SymbolRef::SF_Undefined)
+ NType |= MachO::N_EXT | MachO::N_UNDF;
+ else {
+ // Here we have a symbol definition. So to fake out a section name we
+ // use 1, 2 and 3 for section numbers. See below where they are used to
+ // print out fake section names.
+ NType |= MachO::N_SECT;
+ if(SymFlags & SymbolRef::SF_Const)
+ NSect = 3;
+ else {
+ IRObjectFile *IRobj = dyn_cast<IRObjectFile>(&Obj);
+ char c = getSymbolNMTypeChar(*IRobj, I->Sym);
+ if (c == 't')
+ NSect = 1;
+ else
+ NSect = 2;
+ }
+ }
+ if (SymFlags & SymbolRef::SF_Weak)
+ NDesc |= MachO::N_WEAK_DEF;
+ } else {
+ DataRefImpl SymDRI = I->Sym.getRawDataRefImpl();
+ if (MachO->is64Bit()) {
+ H_64 = MachO->MachOObjectFile::getHeader64();
+ Filetype = H_64.filetype;
+ Flags = H_64.flags;
+ MachO::nlist_64 STE_64 = MachO->getSymbol64TableEntry(SymDRI);
+ NType = STE_64.n_type;
+ NSect = STE_64.n_sect;
+ NDesc = STE_64.n_desc;
+ NStrx = STE_64.n_strx;
+ NValue = STE_64.n_value;
+ } else {
+ H = MachO->MachOObjectFile::getHeader();
+ Filetype = H.filetype;
+ Flags = H.flags;
+ MachO::nlist STE = MachO->getSymbolTableEntry(SymDRI);
+ NType = STE.n_type;
+ NSect = STE.n_sect;
+ NDesc = STE.n_desc;
+ NStrx = STE.n_strx;
+ NValue = STE.n_value;
+ }
+ }
+
+ // If we are printing Mach-O symbols in hex do that and return.
+ if (FormatMachOasHex) {
+ char Str[18] = "";
+ format(printFormat, NValue).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%02x", NType).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%02x", NSect).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%04x", NDesc).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%08x", NStrx).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ outs() << I->Name << "\n";
+ return;
+ }
+
+ if (PrintAddress) {
+ if ((NType & MachO::N_TYPE) == MachO::N_INDR)
+ strcpy(SymbolAddrStr, printBlanks);
+ if (Obj.isIR() && (NType & MachO::N_TYPE) == MachO::N_TYPE)
+ strcpy(SymbolAddrStr, printDashes);
+ outs() << SymbolAddrStr << ' ';
+ }
+
+ switch (NType & MachO::N_TYPE) {
+ case MachO::N_UNDF:
+ if (NValue != 0) {
+ outs() << "(common) ";
+ if (MachO::GET_COMM_ALIGN(NDesc) != 0)
+ outs() << "(alignment 2^" << (int)MachO::GET_COMM_ALIGN(NDesc) << ") ";
+ } else {
+ if ((NType & MachO::N_TYPE) == MachO::N_PBUD)
+ outs() << "(prebound ";
+ else
+ outs() << "(";
+ if ((NDesc & MachO::REFERENCE_TYPE) ==
+ MachO::REFERENCE_FLAG_UNDEFINED_LAZY)
+ outs() << "undefined [lazy bound]) ";
+ else if ((NDesc & MachO::REFERENCE_TYPE) ==
+ MachO::REFERENCE_FLAG_UNDEFINED_LAZY)
+ outs() << "undefined [private lazy bound]) ";
+ else if ((NDesc & MachO::REFERENCE_TYPE) ==
+ MachO::REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY)
+ outs() << "undefined [private]) ";
+ else
+ outs() << "undefined) ";
+ }
+ break;
+ case MachO::N_ABS:
+ outs() << "(absolute) ";
+ break;
+ case MachO::N_INDR:
+ outs() << "(indirect) ";
+ break;
+ case MachO::N_SECT: {
+ if (Obj.isIR()) {
+ // For llvm bitcode files print out a fake section name using the values
+ // use 1, 2 and 3 for section numbers as set above.
+ if (NSect == 1)
+ outs() << "(LTO,CODE) ";
+ else if (NSect == 2)
+ outs() << "(LTO,DATA) ";
+ else if (NSect == 3)
+ outs() << "(LTO,RODATA) ";
+ else
+ outs() << "(?,?) ";
+ break;
+ }
+ section_iterator Sec = *MachO->getSymbolSection(I->Sym.getRawDataRefImpl());
+ DataRefImpl Ref = Sec->getRawDataRefImpl();
+ StringRef SectionName;
+ MachO->getSectionName(Ref, SectionName);
+ StringRef SegmentName = MachO->getSectionFinalSegmentName(Ref);
+ outs() << "(" << SegmentName << "," << SectionName << ") ";
+ break;
+ }
+ default:
+ outs() << "(?) ";
+ break;
+ }
+
+ if (NType & MachO::N_EXT) {
+ if (NDesc & MachO::REFERENCED_DYNAMICALLY)
+ outs() << "[referenced dynamically] ";
+ if (NType & MachO::N_PEXT) {
+ if ((NDesc & MachO::N_WEAK_DEF) == MachO::N_WEAK_DEF)
+ outs() << "weak private external ";
+ else
+ outs() << "private external ";
+ } else {
+ if ((NDesc & MachO::N_WEAK_REF) == MachO::N_WEAK_REF ||
+ (NDesc & MachO::N_WEAK_DEF) == MachO::N_WEAK_DEF) {
+ if ((NDesc & (MachO::N_WEAK_REF | MachO::N_WEAK_DEF)) ==
+ (MachO::N_WEAK_REF | MachO::N_WEAK_DEF))
+ outs() << "weak external automatically hidden ";
+ else
+ outs() << "weak external ";
+ } else
+ outs() << "external ";
+ }
+ } else {
+ if (NType & MachO::N_PEXT)
+ outs() << "non-external (was a private external) ";
+ else
+ outs() << "non-external ";
+ }
+
+ if (Filetype == MachO::MH_OBJECT &&
+ (NDesc & MachO::N_NO_DEAD_STRIP) == MachO::N_NO_DEAD_STRIP)
+ outs() << "[no dead strip] ";
+
+ if (Filetype == MachO::MH_OBJECT &&
+ ((NType & MachO::N_TYPE) != MachO::N_UNDF) &&
+ (NDesc & MachO::N_SYMBOL_RESOLVER) == MachO::N_SYMBOL_RESOLVER)
+ outs() << "[symbol resolver] ";
+
+ if (Filetype == MachO::MH_OBJECT &&
+ ((NType & MachO::N_TYPE) != MachO::N_UNDF) &&
+ (NDesc & MachO::N_ALT_ENTRY) == MachO::N_ALT_ENTRY)
+ outs() << "[alt entry] ";
+
+ if ((NDesc & MachO::N_ARM_THUMB_DEF) == MachO::N_ARM_THUMB_DEF)
+ outs() << "[Thumb] ";
+
+ if ((NType & MachO::N_TYPE) == MachO::N_INDR) {
+ outs() << I->Name << " (for ";
+ StringRef IndirectName;
+ if (!MachO ||
+ MachO->getIndirectName(I->Sym.getRawDataRefImpl(), IndirectName))
+ outs() << "?)";
+ else
+ outs() << IndirectName << ")";
+ } else
+ outs() << I->Name;
+
+ if ((Flags & MachO::MH_TWOLEVEL) == MachO::MH_TWOLEVEL &&
+ (((NType & MachO::N_TYPE) == MachO::N_UNDF && NValue == 0) ||
+ (NType & MachO::N_TYPE) == MachO::N_PBUD)) {
+ uint32_t LibraryOrdinal = MachO::GET_LIBRARY_ORDINAL(NDesc);
+ if (LibraryOrdinal != 0) {
+ if (LibraryOrdinal == MachO::EXECUTABLE_ORDINAL)
+ outs() << " (from executable)";
+ else if (LibraryOrdinal == MachO::DYNAMIC_LOOKUP_ORDINAL)
+ outs() << " (dynamically looked up)";
+ else {
+ StringRef LibraryName;
+ if (!MachO ||
+ MachO->getLibraryShortNameByIndex(LibraryOrdinal - 1, LibraryName))
+ outs() << " (from bad library ordinal " << LibraryOrdinal << ")";
+ else
+ outs() << " (from " << LibraryName << ")";
+ }
+ }
+ }
+
+ outs() << "\n";
+}
+
+// Table that maps Darwin's Mach-O stab constants to strings to allow printing.
+struct DarwinStabName {
+ uint8_t NType;
+ const char *Name;
+};
+static const struct DarwinStabName DarwinStabNames[] = {
+ {MachO::N_GSYM, "GSYM"},
+ {MachO::N_FNAME, "FNAME"},
+ {MachO::N_FUN, "FUN"},
+ {MachO::N_STSYM, "STSYM"},
+ {MachO::N_LCSYM, "LCSYM"},
+ {MachO::N_BNSYM, "BNSYM"},
+ {MachO::N_PC, "PC"},
+ {MachO::N_AST, "AST"},
+ {MachO::N_OPT, "OPT"},
+ {MachO::N_RSYM, "RSYM"},
+ {MachO::N_SLINE, "SLINE"},
+ {MachO::N_ENSYM, "ENSYM"},
+ {MachO::N_SSYM, "SSYM"},
+ {MachO::N_SO, "SO"},
+ {MachO::N_OSO, "OSO"},
+ {MachO::N_LSYM, "LSYM"},
+ {MachO::N_BINCL, "BINCL"},
+ {MachO::N_SOL, "SOL"},
+ {MachO::N_PARAMS, "PARAM"},
+ {MachO::N_VERSION, "VERS"},
+ {MachO::N_OLEVEL, "OLEV"},
+ {MachO::N_PSYM, "PSYM"},
+ {MachO::N_EINCL, "EINCL"},
+ {MachO::N_ENTRY, "ENTRY"},
+ {MachO::N_LBRAC, "LBRAC"},
+ {MachO::N_EXCL, "EXCL"},
+ {MachO::N_RBRAC, "RBRAC"},
+ {MachO::N_BCOMM, "BCOMM"},
+ {MachO::N_ECOMM, "ECOMM"},
+ {MachO::N_ECOML, "ECOML"},
+ {MachO::N_LENG, "LENG"},
+ {0, nullptr}};
+
+static const char *getDarwinStabString(uint8_t NType) {
+ for (unsigned i = 0; DarwinStabNames[i].Name; i++) {
+ if (DarwinStabNames[i].NType == NType)
+ return DarwinStabNames[i].Name;
+ }
+ return nullptr;
+}
+
+// darwinPrintStab() prints the n_sect, n_desc along with a symbolic name of
+// a stab n_type value in a Mach-O file.
+static void darwinPrintStab(MachOObjectFile *MachO, SymbolListT::iterator I) {
+ MachO::nlist_64 STE_64;
+ MachO::nlist STE;
+ uint8_t NType;
+ uint8_t NSect;
+ uint16_t NDesc;
+ DataRefImpl SymDRI = I->Sym.getRawDataRefImpl();
+ if (MachO->is64Bit()) {
+ STE_64 = MachO->getSymbol64TableEntry(SymDRI);
+ NType = STE_64.n_type;
+ NSect = STE_64.n_sect;
+ NDesc = STE_64.n_desc;
+ } else {
+ STE = MachO->getSymbolTableEntry(SymDRI);
+ NType = STE.n_type;
+ NSect = STE.n_sect;
+ NDesc = STE.n_desc;
+ }
+
+ char Str[18] = "";
+ format("%02x", NSect).print(Str, sizeof(Str));
+ outs() << ' ' << Str << ' ';
+ format("%04x", NDesc).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ if (const char *stabString = getDarwinStabString(NType))
+ format("%5.5s", stabString).print(Str, sizeof(Str));
+ else
+ format(" %02x", NType).print(Str, sizeof(Str));
+ outs() << Str;
+}
+
+static void sortAndPrintSymbolList(SymbolicFile &Obj, bool printName,
+ std::string ArchiveName,
+ std::string ArchitectureName) {
+ if (!NoSort) {
+ std::function<bool(const NMSymbol &, const NMSymbol &)> Cmp;
+ if (NumericSort)
+ Cmp = compareSymbolAddress;
+ else if (SizeSort)
+ Cmp = compareSymbolSize;
+ else
+ Cmp = compareSymbolName;
+
+ if (ReverseSort)
+ Cmp = [=](const NMSymbol &A, const NMSymbol &B) { return Cmp(B, A); };
+ std::sort(SymbolList.begin(), SymbolList.end(), Cmp);
+ }
+
+ if (!PrintFileName) {
+ if (OutputFormat == posix && MultipleFiles && printName) {
+ outs() << '\n' << CurrentFilename << ":\n";
+ } else if (OutputFormat == bsd && MultipleFiles && printName) {
+ outs() << "\n" << CurrentFilename << ":\n";
+ } else if (OutputFormat == sysv) {
+ outs() << "\n\nSymbols from " << CurrentFilename << ":\n\n"
+ << "Name Value Class Type"
+ << " Size Line Section\n";
+ }
+ }
+
+ const char *printBlanks, *printDashes, *printFormat;
+ if (isSymbolList64Bit(Obj)) {
+ printBlanks = " ";
+ printDashes = "----------------";
+ printFormat = "%016" PRIx64;
+ } else {
+ printBlanks = " ";
+ printDashes = "--------";
+ printFormat = "%08" PRIx64;
+ }
+
+ for (SymbolListT::iterator I = SymbolList.begin(), E = SymbolList.end();
+ I != E; ++I) {
+ uint32_t SymFlags = I->Sym.getFlags();
+ bool Undefined = SymFlags & SymbolRef::SF_Undefined;
+ if (!Undefined && UndefinedOnly)
+ continue;
+ if (Undefined && DefinedOnly)
+ continue;
+ bool Global = SymFlags & SymbolRef::SF_Global;
+ if (!Global && ExternalOnly)
+ continue;
+ if (SizeSort && !PrintAddress)
+ continue;
+ if (PrintFileName) {
+ if (!ArchitectureName.empty())
+ outs() << "(for architecture " << ArchitectureName << "):";
+ if (!ArchiveName.empty())
+ outs() << ArchiveName << ":";
+ outs() << CurrentFilename << ": ";
+ }
+ if ((JustSymbolName || (UndefinedOnly && isa<MachOObjectFile>(Obj) &&
+ OutputFormat != darwin)) && OutputFormat != posix) {
+ outs() << I->Name << "\n";
+ continue;
+ }
+
+ char SymbolAddrStr[18] = "";
+ char SymbolSizeStr[18] = "";
+
+ if (OutputFormat == sysv || I->TypeChar == 'U')
+ strcpy(SymbolAddrStr, printBlanks);
+ if (OutputFormat == sysv)
+ strcpy(SymbolSizeStr, printBlanks);
+
+ if (I->TypeChar != 'U') {
+ if (Obj.isIR())
+ strcpy(SymbolAddrStr, printDashes);
+ else
+ format(printFormat, I->Address)
+ .print(SymbolAddrStr, sizeof(SymbolAddrStr));
+ }
+ format(printFormat, I->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
+
+ // If OutputFormat is darwin or we are printing Mach-O symbols in hex and
+ // we have a MachOObjectFile, call darwinPrintSymbol to print as darwin's
+ // nm(1) -m output or hex, else if OutputFormat is darwin or we are
+ // printing Mach-O symbols in hex and not a Mach-O object fall back to
+ // OutputFormat bsd (see below).
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(&Obj);
+ if ((OutputFormat == darwin || FormatMachOasHex) && (MachO || Obj.isIR())) {
+ darwinPrintSymbol(Obj, I, SymbolAddrStr, printBlanks, printDashes,
+ printFormat);
+ } else if (OutputFormat == posix) {
+ outs() << I->Name << " " << I->TypeChar << " ";
+ if (MachO)
+ outs() << I->Address << " " << "0" /* SymbolSizeStr */ << "\n";
+ else
+ outs() << SymbolAddrStr << SymbolSizeStr << "\n";
+ } else if (OutputFormat == bsd || (OutputFormat == darwin && !MachO)) {
+ if (PrintAddress)
+ outs() << SymbolAddrStr << ' ';
+ if (PrintSize) {
+ outs() << SymbolSizeStr;
+ outs() << ' ';
+ }
+ outs() << I->TypeChar;
+ if (I->TypeChar == '-' && MachO)
+ darwinPrintStab(MachO, I);
+ outs() << " " << I->Name << "\n";
+ } else if (OutputFormat == sysv) {
+ std::string PaddedName(I->Name);
+ while (PaddedName.length() < 20)
+ PaddedName += " ";
+ outs() << PaddedName << "|" << SymbolAddrStr << "| " << I->TypeChar
+ << " | |" << SymbolSizeStr << "| |\n";
+ }
+ }
+
+ SymbolList.clear();
+}
+
+static char getSymbolNMTypeChar(ELFObjectFileBase &Obj,
+ basic_symbol_iterator I) {
+ // OK, this is ELF
+ elf_symbol_iterator SymI(I);
+
+ ErrorOr<elf_section_iterator> SecIOrErr = SymI->getSection();
+ if (error(SecIOrErr.getError()))
+ return '?';
+
+ elf_section_iterator SecI = *SecIOrErr;
+ if (SecI != Obj.section_end()) {
+ switch (SecI->getType()) {
+ case ELF::SHT_PROGBITS:
+ case ELF::SHT_DYNAMIC:
+ switch (SecI->getFlags()) {
+ case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
+ return 't';
+ case (ELF::SHF_TLS | ELF::SHF_ALLOC | ELF::SHF_WRITE):
+ case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
+ return 'd';
+ case ELF::SHF_ALLOC:
+ case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
+ case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
+ return 'r';
+ }
+ break;
+ case ELF::SHT_NOBITS:
+ return 'b';
+ }
+ }
+
+ if (SymI->getELFType() == ELF::STT_SECTION) {
+ ErrorOr<StringRef> Name = SymI->getName();
+ if (error(Name.getError()))
+ return '?';
+ return StringSwitch<char>(*Name)
+ .StartsWith(".debug", 'N')
+ .StartsWith(".note", 'n')
+ .Default('?');
+ }
+
+ return 'n';
+}
+
+static char getSymbolNMTypeChar(COFFObjectFile &Obj, symbol_iterator I) {
+ COFFSymbolRef Symb = Obj.getCOFFSymbol(*I);
+ // OK, this is COFF.
+ symbol_iterator SymI(I);
+
+ ErrorOr<StringRef> Name = SymI->getName();
+ if (error(Name.getError()))
+ return '?';
+
+ char Ret = StringSwitch<char>(*Name)
+ .StartsWith(".debug", 'N')
+ .StartsWith(".sxdata", 'N')
+ .Default('?');
+
+ if (Ret != '?')
+ return Ret;
+
+ uint32_t Characteristics = 0;
+ if (!COFF::isReservedSectionNumber(Symb.getSectionNumber())) {
+ ErrorOr<section_iterator> SecIOrErr = SymI->getSection();
+ if (error(SecIOrErr.getError()))
+ return '?';
+ section_iterator SecI = *SecIOrErr;
+ const coff_section *Section = Obj.getCOFFSection(*SecI);
+ Characteristics = Section->Characteristics;
+ }
+
+ switch (Symb.getSectionNumber()) {
+ case COFF::IMAGE_SYM_DEBUG:
+ return 'n';
+ default:
+ // Check section type.
+ if (Characteristics & COFF::IMAGE_SCN_CNT_CODE)
+ return 't';
+ if (Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
+ return Characteristics & COFF::IMAGE_SCN_MEM_WRITE ? 'd' : 'r';
+ if (Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
+ return 'b';
+ if (Characteristics & COFF::IMAGE_SCN_LNK_INFO)
+ return 'i';
+ // Check for section symbol.
+ if (Symb.isSectionDefinition())
+ return 's';
+ }
+
+ return '?';
+}
+
+static uint8_t getNType(MachOObjectFile &Obj, DataRefImpl Symb) {
+ if (Obj.is64Bit()) {
+ MachO::nlist_64 STE = Obj.getSymbol64TableEntry(Symb);
+ return STE.n_type;
+ }
+ MachO::nlist STE = Obj.getSymbolTableEntry(Symb);
+ return STE.n_type;
+}
+
+static char getSymbolNMTypeChar(MachOObjectFile &Obj, basic_symbol_iterator I) {
+ DataRefImpl Symb = I->getRawDataRefImpl();
+ uint8_t NType = getNType(Obj, Symb);
+
+ if (NType & MachO::N_STAB)
+ return '-';
+
+ switch (NType & MachO::N_TYPE) {
+ case MachO::N_ABS:
+ return 's';
+ case MachO::N_INDR:
+ return 'i';
+ case MachO::N_SECT: {
+ section_iterator Sec = *Obj.getSymbolSection(Symb);
+ DataRefImpl Ref = Sec->getRawDataRefImpl();
+ StringRef SectionName;
+ Obj.getSectionName(Ref, SectionName);
+ StringRef SegmentName = Obj.getSectionFinalSegmentName(Ref);
+ if (SegmentName == "__TEXT" && SectionName == "__text")
+ return 't';
+ else if (SegmentName == "__DATA" && SectionName == "__data")
+ return 'd';
+ else if (SegmentName == "__DATA" && SectionName == "__bss")
+ return 'b';
+ else
+ return 's';
+ }
+ }
+
+ return '?';
+}
+
+static char getSymbolNMTypeChar(const GlobalValue &GV) {
+ if (GV.getType()->getElementType()->isFunctionTy())
+ return 't';
+ // FIXME: should we print 'b'? At the IR level we cannot be sure if this
+ // will be in bss or not, but we could approximate.
+ return 'd';
+}
+
+static char getSymbolNMTypeChar(IRObjectFile &Obj, basic_symbol_iterator I) {
+ const GlobalValue *GV = Obj.getSymbolGV(I->getRawDataRefImpl());
+ if (!GV)
+ return 't';
+ return getSymbolNMTypeChar(*GV);
+}
+
+static bool isObject(SymbolicFile &Obj, basic_symbol_iterator I) {
+ auto *ELF = dyn_cast<ELFObjectFileBase>(&Obj);
+ if (!ELF)
+ return false;
+
+ return elf_symbol_iterator(I)->getELFType() == ELF::STT_OBJECT;
+}
+
+static char getNMTypeChar(SymbolicFile &Obj, basic_symbol_iterator I) {
+ uint32_t Symflags = I->getFlags();
+ if ((Symflags & object::SymbolRef::SF_Weak) && !isa<MachOObjectFile>(Obj)) {
+ char Ret = isObject(Obj, I) ? 'v' : 'w';
+ if (!(Symflags & object::SymbolRef::SF_Undefined))
+ Ret = toupper(Ret);
+ return Ret;
+ }
+
+ if (Symflags & object::SymbolRef::SF_Undefined)
+ return 'U';
+
+ if (Symflags & object::SymbolRef::SF_Common)
+ return 'C';
+
+ char Ret = '?';
+ if (Symflags & object::SymbolRef::SF_Absolute)
+ Ret = 'a';
+ else if (IRObjectFile *IR = dyn_cast<IRObjectFile>(&Obj)) {
+ Ret = getSymbolNMTypeChar(*IR, I);
+ Triple Host(sys::getDefaultTargetTriple());
+ if (Ret == 'd' && Host.isOSDarwin()) {
+ if(Symflags & SymbolRef::SF_Const)
+ Ret = 's';
+ }
+ }
+ else if (COFFObjectFile *COFF = dyn_cast<COFFObjectFile>(&Obj))
+ Ret = getSymbolNMTypeChar(*COFF, I);
+ else if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(&Obj))
+ Ret = getSymbolNMTypeChar(*MachO, I);
+ else
+ Ret = getSymbolNMTypeChar(cast<ELFObjectFileBase>(Obj), I);
+
+ if (Symflags & object::SymbolRef::SF_Global)
+ Ret = toupper(Ret);
+
+ return Ret;
+}
+
+// getNsectForSegSect() is used to implement the Mach-O "-s segname sectname"
+// option to dump only those symbols from that section in a Mach-O file.
+// It is called once for each Mach-O file from dumpSymbolNamesFromObject()
+// to get the section number for that named section from the command line
+// arguments. It returns the section number for that section in the Mach-O
+// file or zero it is not present.
+static unsigned getNsectForSegSect(MachOObjectFile *Obj) {
+ unsigned Nsect = 1;
+ for (section_iterator I = Obj->section_begin(), E = Obj->section_end();
+ I != E; ++I) {
+ DataRefImpl Ref = I->getRawDataRefImpl();
+ StringRef SectionName;
+ Obj->getSectionName(Ref, SectionName);
+ StringRef SegmentName = Obj->getSectionFinalSegmentName(Ref);
+ if (SegmentName == SegSect[0] && SectionName == SegSect[1])
+ return Nsect;
+ Nsect++;
+ }
+ return 0;
+}
+
+// getNsectInMachO() is used to implement the Mach-O "-s segname sectname"
+// option to dump only those symbols from that section in a Mach-O file.
+// It is called once for each symbol in a Mach-O file from
+// dumpSymbolNamesFromObject() and returns the section number for that symbol
+// if it is in a section, else it returns 0.
+static unsigned getNsectInMachO(MachOObjectFile &Obj, BasicSymbolRef Sym) {
+ DataRefImpl Symb = Sym.getRawDataRefImpl();
+ if (Obj.is64Bit()) {
+ MachO::nlist_64 STE = Obj.getSymbol64TableEntry(Symb);
+ if ((STE.n_type & MachO::N_TYPE) == MachO::N_SECT)
+ return STE.n_sect;
+ return 0;
+ }
+ MachO::nlist STE = Obj.getSymbolTableEntry(Symb);
+ if ((STE.n_type & MachO::N_TYPE) == MachO::N_SECT)
+ return STE.n_sect;
+ return 0;
+}
+
+static void dumpSymbolNamesFromObject(SymbolicFile &Obj, bool printName,
+ std::string ArchiveName = std::string(),
+ std::string ArchitectureName =
+ std::string()) {
+ auto Symbols = Obj.symbols();
+ if (DynamicSyms) {
+ const auto *E = dyn_cast<ELFObjectFileBase>(&Obj);
+ if (!E) {
+ error("File format has no dynamic symbol table", Obj.getFileName());
+ return;
+ }
+ auto DynSymbols = E->getDynamicSymbolIterators();
+ Symbols =
+ make_range<basic_symbol_iterator>(DynSymbols.begin(), DynSymbols.end());
+ }
+ std::string NameBuffer;
+ raw_string_ostream OS(NameBuffer);
+ // If a "-s segname sectname" option was specified and this is a Mach-O
+ // file get the section number for that section in this object file.
+ unsigned int Nsect = 0;
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(&Obj);
+ if (SegSect.size() != 0 && MachO) {
+ Nsect = getNsectForSegSect(MachO);
+ // If this section is not in the object file no symbols are printed.
+ if (Nsect == 0)
+ return;
+ }
+ for (BasicSymbolRef Sym : Symbols) {
+ uint32_t SymFlags = Sym.getFlags();
+ if (!DebugSyms && (SymFlags & SymbolRef::SF_FormatSpecific))
+ continue;
+ if (WithoutAliases) {
+ if (IRObjectFile *IR = dyn_cast<IRObjectFile>(&Obj)) {
+ const GlobalValue *GV = IR->getSymbolGV(Sym.getRawDataRefImpl());
+ if (GV && isa<GlobalAlias>(GV))
+ continue;
+ }
+ }
+ // If a "-s segname sectname" option was specified and this is a Mach-O
+ // file and this section appears in this file, Nsect will be non-zero then
+ // see if this symbol is a symbol from that section and if not skip it.
+ if (Nsect && Nsect != getNsectInMachO(*MachO, Sym))
+ continue;
+ NMSymbol S;
+ S.Size = 0;
+ S.Address = 0;
+ if (PrintSize) {
+ if (isa<ELFObjectFileBase>(&Obj))
+ S.Size = ELFSymbolRef(Sym).getSize();
+ }
+ if (PrintAddress && isa<ObjectFile>(Obj)) {
+ SymbolRef SymRef(Sym);
+ ErrorOr<uint64_t> AddressOrErr = SymRef.getAddress();
+ if (error(AddressOrErr.getError()))
+ break;
+ S.Address = *AddressOrErr;
+ }
+ S.TypeChar = getNMTypeChar(Obj, Sym);
+ if (error(Sym.printName(OS)))
+ break;
+ OS << '\0';
+ S.Sym = Sym;
+ SymbolList.push_back(S);
+ }
+
+ OS.flush();
+ const char *P = NameBuffer.c_str();
+ for (unsigned I = 0; I < SymbolList.size(); ++I) {
+ SymbolList[I].Name = P;
+ P += strlen(P) + 1;
+ }
+
+ CurrentFilename = Obj.getFileName();
+ sortAndPrintSymbolList(Obj, printName, ArchiveName, ArchitectureName);
+}
+
+// checkMachOAndArchFlags() checks to see if the SymbolicFile is a Mach-O file
+// and if it is and there is a list of architecture flags is specified then
+// check to make sure this Mach-O file is one of those architectures or all
+// architectures was specificed. If not then an error is generated and this
+// routine returns false. Else it returns true.
+static bool checkMachOAndArchFlags(SymbolicFile *O, std::string &Filename) {
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
+
+ if (!MachO || ArchAll || ArchFlags.size() == 0)
+ return true;
+
+ MachO::mach_header H;
+ MachO::mach_header_64 H_64;
+ Triple T;
+ if (MachO->is64Bit()) {
+ H_64 = MachO->MachOObjectFile::getHeader64();
+ T = MachOObjectFile::getArch(H_64.cputype, H_64.cpusubtype);
+ } else {
+ H = MachO->MachOObjectFile::getHeader();
+ T = MachOObjectFile::getArch(H.cputype, H.cpusubtype);
+ }
+ if (std::none_of(
+ ArchFlags.begin(), ArchFlags.end(),
+ [&](const std::string &Name) { return Name == T.getArchName(); })) {
+ error("No architecture specified", Filename);
+ return false;
+ }
+ return true;
+}
+
+static void dumpSymbolNamesFromFile(std::string &Filename) {
+ ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
+ MemoryBuffer::getFileOrSTDIN(Filename);
+ if (error(BufferOrErr.getError(), Filename))
+ return;
+
+ LLVMContext &Context = getGlobalContext();
+ ErrorOr<std::unique_ptr<Binary>> BinaryOrErr = createBinary(
+ BufferOrErr.get()->getMemBufferRef(), NoLLVMBitcode ? nullptr : &Context);
+ if (error(BinaryOrErr.getError(), Filename))
+ return;
+ Binary &Bin = *BinaryOrErr.get();
+
+ if (Archive *A = dyn_cast<Archive>(&Bin)) {
+ if (ArchiveMap) {
+ Archive::symbol_iterator I = A->symbol_begin();
+ Archive::symbol_iterator E = A->symbol_end();
+ if (I != E) {
+ outs() << "Archive map\n";
+ for (; I != E; ++I) {
+ ErrorOr<Archive::Child> C = I->getMember();
+ if (error(C.getError()))
+ return;
+ ErrorOr<StringRef> FileNameOrErr = C->getName();
+ if (error(FileNameOrErr.getError()))
+ return;
+ StringRef SymName = I->getName();
+ outs() << SymName << " in " << FileNameOrErr.get() << "\n";
+ }
+ outs() << "\n";
+ }
+ }
+
+ for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
+ I != E; ++I) {
+ if (error(I->getError()))
+ return;
+ auto &C = I->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ if (!checkMachOAndArchFlags(O, Filename))
+ return;
+ if (!PrintFileName) {
+ outs() << "\n";
+ if (isa<MachOObjectFile>(O)) {
+ outs() << Filename << "(" << O->getFileName() << ")";
+ } else
+ outs() << O->getFileName();
+ outs() << ":\n";
+ }
+ dumpSymbolNamesFromObject(*O, false, Filename);
+ }
+ }
+ return;
+ }
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(&Bin)) {
+ // If we have a list of architecture flags specified dump only those.
+ if (!ArchAll && ArchFlags.size() != 0) {
+ // Look for a slice in the universal binary that matches each ArchFlag.
+ bool ArchFound;
+ for (unsigned i = 0; i < ArchFlags.size(); ++i) {
+ ArchFound = false;
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ if (ArchFlags[i] == I->getArchTypeName()) {
+ ArchFound = true;
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
+ I->getAsObjectFile();
+ std::string ArchiveName;
+ std::string ArchitectureName;
+ ArchiveName.clear();
+ ArchitectureName.clear();
+ if (ObjOrErr) {
+ ObjectFile &Obj = *ObjOrErr.get();
+ if (ArchFlags.size() > 1) {
+ if (PrintFileName)
+ ArchitectureName = I->getArchTypeName();
+ else
+ outs() << "\n" << Obj.getFileName() << " (for architecture "
+ << I->getArchTypeName() << ")"
+ << ":\n";
+ }
+ dumpSymbolNamesFromObject(Obj, false, ArchiveName,
+ ArchitectureName);
+ } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
+ I->getAsArchive()) {
+ std::unique_ptr<Archive> &A = *AOrErr;
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ if (error(AI->getError()))
+ return;
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
+ C.getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O =
+ dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ if (PrintFileName) {
+ ArchiveName = A->getFileName();
+ if (ArchFlags.size() > 1)
+ ArchitectureName = I->getArchTypeName();
+ } else {
+ outs() << "\n" << A->getFileName();
+ outs() << "(" << O->getFileName() << ")";
+ if (ArchFlags.size() > 1) {
+ outs() << " (for architecture " << I->getArchTypeName()
+ << ")";
+ }
+ outs() << ":\n";
+ }
+ dumpSymbolNamesFromObject(*O, false, ArchiveName,
+ ArchitectureName);
+ }
+ }
+ }
+ }
+ }
+ if (!ArchFound) {
+ error(ArchFlags[i],
+ "file: " + Filename + " does not contain architecture");
+ return;
+ }
+ }
+ return;
+ }
+ // No architecture flags were specified so if this contains a slice that
+ // matches the host architecture dump only that.
+ if (!ArchAll) {
+ StringRef HostArchName = MachOObjectFile::getHostArch().getArchName();
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ if (HostArchName == I->getArchTypeName()) {
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
+ std::string ArchiveName;
+ ArchiveName.clear();
+ if (ObjOrErr) {
+ ObjectFile &Obj = *ObjOrErr.get();
+ dumpSymbolNamesFromObject(Obj, false);
+ } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr =
+ I->getAsArchive()) {
+ std::unique_ptr<Archive> &A = *AOrErr;
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ if (error(AI->getError()))
+ return;
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
+ C.getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O =
+ dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ if (PrintFileName)
+ ArchiveName = A->getFileName();
+ else
+ outs() << "\n" << A->getFileName() << "(" << O->getFileName()
+ << ")"
+ << ":\n";
+ dumpSymbolNamesFromObject(*O, false, ArchiveName);
+ }
+ }
+ }
+ return;
+ }
+ }
+ }
+ // Either all architectures have been specified or none have been specified
+ // and this does not contain the host architecture so dump all the slices.
+ bool moreThanOneArch = UB->getNumberOfObjects() > 1;
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
+ std::string ArchiveName;
+ std::string ArchitectureName;
+ ArchiveName.clear();
+ ArchitectureName.clear();
+ if (ObjOrErr) {
+ ObjectFile &Obj = *ObjOrErr.get();
+ if (PrintFileName) {
+ if (isa<MachOObjectFile>(Obj) && moreThanOneArch)
+ ArchitectureName = I->getArchTypeName();
+ } else {
+ if (moreThanOneArch)
+ outs() << "\n";
+ outs() << Obj.getFileName();
+ if (isa<MachOObjectFile>(Obj) && moreThanOneArch)
+ outs() << " (for architecture " << I->getArchTypeName() << ")";
+ outs() << ":\n";
+ }
+ dumpSymbolNamesFromObject(Obj, false, ArchiveName, ArchitectureName);
+ } else if (ErrorOr<std::unique_ptr<Archive>> AOrErr = I->getAsArchive()) {
+ std::unique_ptr<Archive> &A = *AOrErr;
+ for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
+ AI != AE; ++AI) {
+ if (error(AI->getError()))
+ return;
+ auto &C = AI->get();
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ if (PrintFileName) {
+ ArchiveName = A->getFileName();
+ if (isa<MachOObjectFile>(O) && moreThanOneArch)
+ ArchitectureName = I->getArchTypeName();
+ } else {
+ outs() << "\n" << A->getFileName();
+ if (isa<MachOObjectFile>(O)) {
+ outs() << "(" << O->getFileName() << ")";
+ if (moreThanOneArch)
+ outs() << " (for architecture " << I->getArchTypeName()
+ << ")";
+ } else
+ outs() << ":" << O->getFileName();
+ outs() << ":\n";
+ }
+ dumpSymbolNamesFromObject(*O, false, ArchiveName, ArchitectureName);
+ }
+ }
+ }
+ }
+ return;
+ }
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(&Bin)) {
+ if (!checkMachOAndArchFlags(O, Filename))
+ return;
+ dumpSymbolNamesFromObject(*O, true);
+ return;
+ }
+ error("unrecognizable file type", Filename);
+}
+
+int main(int argc, char **argv) {
+ // Print a stack trace if we signal out.
+ sys::PrintStackTraceOnErrorSignal();
+ PrettyStackTraceProgram X(argc, argv);
+
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+ cl::ParseCommandLineOptions(argc, argv, "llvm symbol table dumper\n");
+
+ // llvm-nm only reads binary files.
+ if (error(sys::ChangeStdinToBinary()))
+ return 1;
+
+ llvm::InitializeAllTargetInfos();
+ llvm::InitializeAllTargetMCs();
+ llvm::InitializeAllAsmParsers();
+
+ ToolName = argv[0];
+ if (BSDFormat)
+ OutputFormat = bsd;
+ if (POSIXFormat)
+ OutputFormat = posix;
+ if (DarwinFormat)
+ OutputFormat = darwin;
+
+ // The relative order of these is important. If you pass --size-sort it should
+ // only print out the size. However, if you pass -S --size-sort, it should
+ // print out both the size and address.
+ if (SizeSort && !PrintSize)
+ PrintAddress = false;
+ if (OutputFormat == sysv || SizeSort)
+ PrintSize = true;
+
+ switch (InputFilenames.size()) {
+ case 0:
+ InputFilenames.push_back("a.out");
+ case 1:
+ break;
+ default:
+ MultipleFiles = true;
+ }
+
+ for (unsigned i = 0; i < ArchFlags.size(); ++i) {
+ if (ArchFlags[i] == "all") {
+ ArchAll = true;
+ } else {
+ if (!MachOObjectFile::isValidArch(ArchFlags[i]))
+ error("Unknown architecture named '" + ArchFlags[i] + "'",
+ "for the -arch option");
+ }
+ }
+
+ if (SegSect.size() != 0 && SegSect.size() != 2)
+ error("bad number of arguments (must be two arguments)",
+ "for the -s option");
+
+ std::for_each(InputFilenames.begin(), InputFilenames.end(),
+ dumpSymbolNamesFromFile);
+
+ if (HadError)
+ return 1;
+
+ return 0;
+}
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