1219 lines
41 KiB
C++
1219 lines
41 KiB
C++
//===-- llvm-nm.cpp - Symbol table 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 traditional Unix "nm", that is, it
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// prints out the names of symbols in a bitcode or object file, along with some
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// information about each symbol.
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//
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// This "nm" supports many of the features of GNU "nm", including its different
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// output formats.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/Function.h"
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#include "llvm/IR/GlobalAlias.h"
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#include "llvm/IR/GlobalVariable.h"
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#include "llvm/IR/LLVMContext.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/ELFObjectFile.h"
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#include "llvm/Object/IRObjectFile.h"
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#include "llvm/Object/MachO.h"
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#include "llvm/Object/MachOUniversal.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/COFF.h"
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#include "llvm/Support/CommandLine.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/ManagedStatic.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Program.h"
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#include "llvm/Support/Signals.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 <cerrno>
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#include <cstring>
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#include <system_error>
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#include <vector>
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using namespace llvm;
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using namespace object;
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namespace {
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enum OutputFormatTy { bsd, sysv, posix, darwin };
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cl::opt<OutputFormatTy> OutputFormat(
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"format", cl::desc("Specify output format"),
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cl::values(clEnumVal(bsd, "BSD format"), clEnumVal(sysv, "System V format"),
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clEnumVal(posix, "POSIX.2 format"),
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clEnumVal(darwin, "Darwin -m format"), clEnumValEnd),
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cl::init(bsd));
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cl::alias OutputFormat2("f", cl::desc("Alias for --format"),
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cl::aliasopt(OutputFormat));
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cl::list<std::string> InputFilenames(cl::Positional, cl::desc("<input files>"),
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cl::ZeroOrMore);
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cl::opt<bool> UndefinedOnly("undefined-only",
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cl::desc("Show only undefined symbols"));
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cl::alias UndefinedOnly2("u", cl::desc("Alias for --undefined-only"),
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cl::aliasopt(UndefinedOnly));
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cl::opt<bool> DynamicSyms("dynamic",
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cl::desc("Display the dynamic symbols instead "
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"of normal symbols."));
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cl::alias DynamicSyms2("D", cl::desc("Alias for --dynamic"),
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cl::aliasopt(DynamicSyms));
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cl::opt<bool> DefinedOnly("defined-only",
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cl::desc("Show only defined symbols"));
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cl::alias DefinedOnly2("U", cl::desc("Alias for --defined-only"),
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cl::aliasopt(DefinedOnly));
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cl::opt<bool> ExternalOnly("extern-only",
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cl::desc("Show only external symbols"));
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cl::alias ExternalOnly2("g", cl::desc("Alias for --extern-only"),
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cl::aliasopt(ExternalOnly));
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cl::opt<bool> BSDFormat("B", cl::desc("Alias for --format=bsd"));
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cl::opt<bool> POSIXFormat("P", cl::desc("Alias for --format=posix"));
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cl::opt<bool> DarwinFormat("m", cl::desc("Alias for --format=darwin"));
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static cl::list<std::string>
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ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
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cl::ZeroOrMore);
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bool ArchAll = false;
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cl::opt<bool> PrintFileName(
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"print-file-name",
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cl::desc("Precede each symbol with the object file it came from"));
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cl::alias PrintFileNameA("A", cl::desc("Alias for --print-file-name"),
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cl::aliasopt(PrintFileName));
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cl::alias PrintFileNameo("o", cl::desc("Alias for --print-file-name"),
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cl::aliasopt(PrintFileName));
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cl::opt<bool> DebugSyms("debug-syms",
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cl::desc("Show all symbols, even debugger only"));
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cl::alias DebugSymsa("a", cl::desc("Alias for --debug-syms"),
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cl::aliasopt(DebugSyms));
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cl::opt<bool> NumericSort("numeric-sort", cl::desc("Sort symbols by address"));
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cl::alias NumericSortn("n", cl::desc("Alias for --numeric-sort"),
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cl::aliasopt(NumericSort));
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cl::alias NumericSortv("v", cl::desc("Alias for --numeric-sort"),
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cl::aliasopt(NumericSort));
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cl::opt<bool> NoSort("no-sort", cl::desc("Show symbols in order encountered"));
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cl::alias NoSortp("p", cl::desc("Alias for --no-sort"), cl::aliasopt(NoSort));
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cl::opt<bool> ReverseSort("reverse-sort", cl::desc("Sort in reverse order"));
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cl::alias ReverseSortr("r", cl::desc("Alias for --reverse-sort"),
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cl::aliasopt(ReverseSort));
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cl::opt<bool> PrintSize("print-size",
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cl::desc("Show symbol size instead of address"));
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cl::alias PrintSizeS("S", cl::desc("Alias for --print-size"),
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cl::aliasopt(PrintSize));
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cl::opt<bool> SizeSort("size-sort", cl::desc("Sort symbols by size"));
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cl::opt<bool> WithoutAliases("without-aliases", cl::Hidden,
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cl::desc("Exclude aliases from output"));
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cl::opt<bool> ArchiveMap("print-armap", cl::desc("Print the archive map"));
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cl::alias ArchiveMaps("M", cl::desc("Alias for --print-armap"),
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cl::aliasopt(ArchiveMap));
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cl::opt<bool> JustSymbolName("just-symbol-name",
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cl::desc("Print just the symbol's name"));
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cl::alias JustSymbolNames("j", cl::desc("Alias for --just-symbol-name"),
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cl::aliasopt(JustSymbolName));
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// FIXME: This option takes exactly two strings and should be allowed anywhere
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// on the command line. Such that "llvm-nm -s __TEXT __text foo.o" would work.
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// But that does not as the CommandLine Library does not have a way to make
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// this work. For now the "-s __TEXT __text" has to be last on the command
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// line.
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cl::list<std::string> SegSect("s", cl::Positional, cl::ZeroOrMore,
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cl::desc("Dump only symbols from this segment "
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"and section name, Mach-O only"));
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cl::opt<bool> FormatMachOasHex("x", cl::desc("Print symbol entry in hex, "
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"Mach-O only"));
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cl::opt<bool> NoLLVMBitcode("no-llvm-bc",
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cl::desc("Disable LLVM bitcode reader"));
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bool PrintAddress = true;
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bool MultipleFiles = false;
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bool HadError = false;
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std::string ToolName;
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}
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static void error(Twine Message, Twine Path = Twine()) {
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HadError = true;
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errs() << ToolName << ": " << Path << ": " << Message << ".\n";
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}
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static bool error(std::error_code EC, Twine Path = Twine()) {
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if (EC) {
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error(EC.message(), Path);
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return true;
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}
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return false;
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}
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namespace {
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struct NMSymbol {
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uint64_t Address;
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uint64_t Size;
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char TypeChar;
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StringRef Name;
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BasicSymbolRef Sym;
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};
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}
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static bool compareSymbolAddress(const NMSymbol &A, const NMSymbol &B) {
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bool ADefined = !(A.Sym.getFlags() & SymbolRef::SF_Undefined);
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bool BDefined = !(B.Sym.getFlags() & SymbolRef::SF_Undefined);
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return std::make_tuple(ADefined, A.Address, A.Name, A.Size) <
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std::make_tuple(BDefined, B.Address, B.Name, B.Size);
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}
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static bool compareSymbolSize(const NMSymbol &A, const NMSymbol &B) {
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return std::make_tuple(A.Size, A.Name, A.Address) <
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std::make_tuple(B.Size, B.Name, B.Address);
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}
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static bool compareSymbolName(const NMSymbol &A, const NMSymbol &B) {
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return std::make_tuple(A.Name, A.Size, A.Address) <
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std::make_tuple(B.Name, B.Size, B.Address);
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}
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static char isSymbolList64Bit(SymbolicFile &Obj) {
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if (isa<IRObjectFile>(Obj))
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return false;
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if (isa<COFFObjectFile>(Obj))
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return false;
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if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(&Obj))
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return MachO->is64Bit();
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return cast<ELFObjectFileBase>(Obj).getBytesInAddress() == 8;
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}
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static StringRef CurrentFilename;
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typedef std::vector<NMSymbol> SymbolListT;
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static SymbolListT SymbolList;
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// darwinPrintSymbol() is used to print a symbol from a Mach-O file when the
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// the OutputFormat is darwin or we are printing Mach-O symbols in hex. For
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// the darwin format it produces the same output as darwin's nm(1) -m output
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// and when printing Mach-O symbols in hex it produces the same output as
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// darwin's nm(1) -x format.
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static void darwinPrintSymbol(MachOObjectFile *MachO, SymbolListT::iterator I,
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char *SymbolAddrStr, const char *printBlanks) {
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MachO::mach_header H;
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MachO::mach_header_64 H_64;
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uint32_t Filetype, Flags;
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MachO::nlist_64 STE_64;
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MachO::nlist STE;
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uint8_t NType;
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uint8_t NSect;
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uint16_t NDesc;
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uint32_t NStrx;
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uint64_t NValue;
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DataRefImpl SymDRI = I->Sym.getRawDataRefImpl();
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if (MachO->is64Bit()) {
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H_64 = MachO->MachOObjectFile::getHeader64();
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Filetype = H_64.filetype;
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Flags = H_64.flags;
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STE_64 = MachO->getSymbol64TableEntry(SymDRI);
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NType = STE_64.n_type;
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NSect = STE_64.n_sect;
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NDesc = STE_64.n_desc;
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NStrx = STE_64.n_strx;
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NValue = STE_64.n_value;
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} else {
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H = MachO->MachOObjectFile::getHeader();
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Filetype = H.filetype;
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Flags = H.flags;
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STE = MachO->getSymbolTableEntry(SymDRI);
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NType = STE.n_type;
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NSect = STE.n_sect;
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NDesc = STE.n_desc;
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NStrx = STE.n_strx;
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NValue = STE.n_value;
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}
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// If we are printing Mach-O symbols in hex do that and return.
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if (FormatMachOasHex) {
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char Str[18] = "";
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const char *printFormat;
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if (MachO->is64Bit())
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printFormat = "%016" PRIx64;
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else
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printFormat = "%08" PRIx64;
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format(printFormat, NValue).print(Str, sizeof(Str));
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outs() << Str << ' ';
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format("%02x", NType).print(Str, sizeof(Str));
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outs() << Str << ' ';
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format("%02x", NSect).print(Str, sizeof(Str));
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outs() << Str << ' ';
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format("%04x", NDesc).print(Str, sizeof(Str));
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outs() << Str << ' ';
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format("%08x", NStrx).print(Str, sizeof(Str));
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outs() << Str << ' ';
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outs() << I->Name << "\n";
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return;
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}
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if (PrintAddress) {
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if ((NType & MachO::N_TYPE) == MachO::N_INDR)
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strcpy(SymbolAddrStr, printBlanks);
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outs() << SymbolAddrStr << ' ';
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}
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switch (NType & MachO::N_TYPE) {
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case MachO::N_UNDF:
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if (NValue != 0) {
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outs() << "(common) ";
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if (MachO::GET_COMM_ALIGN(NDesc) != 0)
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outs() << "(alignment 2^" << (int)MachO::GET_COMM_ALIGN(NDesc) << ") ";
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} else {
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if ((NType & MachO::N_TYPE) == MachO::N_PBUD)
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outs() << "(prebound ";
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else
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outs() << "(";
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if ((NDesc & MachO::REFERENCE_TYPE) ==
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MachO::REFERENCE_FLAG_UNDEFINED_LAZY)
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outs() << "undefined [lazy bound]) ";
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else if ((NDesc & MachO::REFERENCE_TYPE) ==
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MachO::REFERENCE_FLAG_UNDEFINED_LAZY)
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outs() << "undefined [private lazy bound]) ";
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else if ((NDesc & MachO::REFERENCE_TYPE) ==
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MachO::REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY)
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outs() << "undefined [private]) ";
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else
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outs() << "undefined) ";
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}
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break;
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case MachO::N_ABS:
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outs() << "(absolute) ";
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break;
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case MachO::N_INDR:
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outs() << "(indirect) ";
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break;
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case MachO::N_SECT: {
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section_iterator Sec = MachO->section_end();
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MachO->getSymbolSection(I->Sym.getRawDataRefImpl(), Sec);
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DataRefImpl Ref = Sec->getRawDataRefImpl();
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StringRef SectionName;
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MachO->getSectionName(Ref, SectionName);
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StringRef SegmentName = MachO->getSectionFinalSegmentName(Ref);
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outs() << "(" << SegmentName << "," << SectionName << ") ";
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break;
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}
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default:
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outs() << "(?) ";
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break;
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}
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if (NType & MachO::N_EXT) {
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if (NDesc & MachO::REFERENCED_DYNAMICALLY)
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outs() << "[referenced dynamically] ";
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if (NType & MachO::N_PEXT) {
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if ((NDesc & MachO::N_WEAK_DEF) == MachO::N_WEAK_DEF)
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outs() << "weak private external ";
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else
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outs() << "private external ";
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} else {
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if ((NDesc & MachO::N_WEAK_REF) == MachO::N_WEAK_REF ||
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(NDesc & MachO::N_WEAK_DEF) == MachO::N_WEAK_DEF) {
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if ((NDesc & (MachO::N_WEAK_REF | MachO::N_WEAK_DEF)) ==
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(MachO::N_WEAK_REF | MachO::N_WEAK_DEF))
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outs() << "weak external automatically hidden ";
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else
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outs() << "weak external ";
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} else
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outs() << "external ";
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}
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} else {
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if (NType & MachO::N_PEXT)
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outs() << "non-external (was a private external) ";
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else
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outs() << "non-external ";
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}
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if (Filetype == MachO::MH_OBJECT &&
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(NDesc & MachO::N_NO_DEAD_STRIP) == MachO::N_NO_DEAD_STRIP)
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outs() << "[no dead strip] ";
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if (Filetype == MachO::MH_OBJECT &&
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((NType & MachO::N_TYPE) != MachO::N_UNDF) &&
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(NDesc & MachO::N_SYMBOL_RESOLVER) == MachO::N_SYMBOL_RESOLVER)
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outs() << "[symbol resolver] ";
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if (Filetype == MachO::MH_OBJECT &&
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((NType & MachO::N_TYPE) != MachO::N_UNDF) &&
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(NDesc & MachO::N_ALT_ENTRY) == MachO::N_ALT_ENTRY)
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outs() << "[alt entry] ";
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if ((NDesc & MachO::N_ARM_THUMB_DEF) == MachO::N_ARM_THUMB_DEF)
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outs() << "[Thumb] ";
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if ((NType & MachO::N_TYPE) == MachO::N_INDR) {
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outs() << I->Name << " (for ";
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StringRef IndirectName;
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if (MachO->getIndirectName(I->Sym.getRawDataRefImpl(), IndirectName))
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outs() << "?)";
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else
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outs() << IndirectName << ")";
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} else
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outs() << I->Name;
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if ((Flags & MachO::MH_TWOLEVEL) == MachO::MH_TWOLEVEL &&
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(((NType & MachO::N_TYPE) == MachO::N_UNDF && NValue == 0) ||
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(NType & MachO::N_TYPE) == MachO::N_PBUD)) {
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uint32_t LibraryOrdinal = MachO::GET_LIBRARY_ORDINAL(NDesc);
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if (LibraryOrdinal != 0) {
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if (LibraryOrdinal == MachO::EXECUTABLE_ORDINAL)
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outs() << " (from executable)";
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else if (LibraryOrdinal == MachO::DYNAMIC_LOOKUP_ORDINAL)
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outs() << " (dynamically looked up)";
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else {
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StringRef LibraryName;
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if (MachO->getLibraryShortNameByIndex(LibraryOrdinal - 1, LibraryName))
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outs() << " (from bad library ordinal " << LibraryOrdinal << ")";
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else
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outs() << " (from " << LibraryName << ")";
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}
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}
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}
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outs() << "\n";
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}
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// Table that maps Darwin's Mach-O stab constants to strings to allow printing.
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struct DarwinStabName {
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uint8_t NType;
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const char *Name;
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};
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static const struct DarwinStabName DarwinStabNames[] = {
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{MachO::N_GSYM, "GSYM"},
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{MachO::N_FNAME, "FNAME"},
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{MachO::N_FUN, "FUN"},
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{MachO::N_STSYM, "STSYM"},
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{MachO::N_LCSYM, "LCSYM"},
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{MachO::N_BNSYM, "BNSYM"},
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{MachO::N_PC, "PC"},
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{MachO::N_AST, "AST"},
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{MachO::N_OPT, "OPT"},
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{MachO::N_RSYM, "RSYM"},
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{MachO::N_SLINE, "SLINE"},
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{MachO::N_ENSYM, "ENSYM"},
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{MachO::N_SSYM, "SSYM"},
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{MachO::N_SO, "SO"},
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{MachO::N_OSO, "OSO"},
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{MachO::N_LSYM, "LSYM"},
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{MachO::N_BINCL, "BINCL"},
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{MachO::N_SOL, "SOL"},
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{MachO::N_PARAMS, "PARAM"},
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{MachO::N_VERSION, "VERS"},
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{MachO::N_OLEVEL, "OLEV"},
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{MachO::N_PSYM, "PSYM"},
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{MachO::N_EINCL, "EINCL"},
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{MachO::N_ENTRY, "ENTRY"},
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{MachO::N_LBRAC, "LBRAC"},
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{MachO::N_EXCL, "EXCL"},
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{MachO::N_RBRAC, "RBRAC"},
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{MachO::N_BCOMM, "BCOMM"},
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{MachO::N_ECOMM, "ECOMM"},
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{MachO::N_ECOML, "ECOML"},
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{MachO::N_LENG, "LENG"},
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{0, 0}};
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static const char *getDarwinStabString(uint8_t NType) {
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for (unsigned i = 0; DarwinStabNames[i].Name; i++) {
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if (DarwinStabNames[i].NType == NType)
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return DarwinStabNames[i].Name;
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}
|
|
return 0;
|
|
}
|
|
|
|
// 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, *printFormat;
|
|
if (isSymbolList64Bit(Obj)) {
|
|
printBlanks = " ";
|
|
printFormat = "%016" PRIx64;
|
|
} else {
|
|
printBlanks = " ";
|
|
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;
|
|
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))) {
|
|
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')
|
|
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) {
|
|
darwinPrintSymbol(MachO, I, SymbolAddrStr, printBlanks);
|
|
} else if (OutputFormat == posix) {
|
|
outs() << I->Name << " " << I->TypeChar << " " << 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);
|
|
|
|
elf_section_iterator SecI = Obj.section_end();
|
|
if (error(SymI->getSection(SecI)))
|
|
return '?';
|
|
|
|
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())) {
|
|
section_iterator SecI = Obj.section_end();
|
|
if (error(SymI->getSection(SecI)))
|
|
return '?';
|
|
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.section_end();
|
|
Obj.getSymbolSection(Symb, Sec);
|
|
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);
|
|
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_iterator> C = I->getMember();
|
|
if (error(C.getError()))
|
|
return;
|
|
ErrorOr<StringRef> FileNameOrErr = C.get()->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) {
|
|
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = I->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) {
|
|
ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
|
|
AI->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) {
|
|
ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
|
|
AI->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) {
|
|
ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
|
|
AI->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);
|
|
return;
|
|
}
|
|
|
|
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;
|
|
}
|