mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 03:29:40 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200484 91177308-0d34-0410-b5e6-96231b3b80d8
700 lines
21 KiB
C++
700 lines
21 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/LLVMContext.h"
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#include "llvm/Bitcode/ReaderWriter.h"
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#include "llvm/IR/Module.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/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/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/raw_ostream.h"
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#include "llvm/Support/system_error.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 <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 };
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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"), 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,
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cl::desc("<input bitcode 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::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> 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> 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("s", cl::desc("Alias for --print-armap"),
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cl::aliasopt(ArchiveMap));
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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(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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};
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}
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static bool compareSymbolAddress(const NMSymbol &A, const NMSymbol &B) {
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if (A.Address < B.Address)
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return true;
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else if (A.Address == B.Address && A.Name < B.Name)
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return true;
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else if (A.Address == B.Address && A.Name == B.Name && A.Size < B.Size)
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return true;
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else
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return false;
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}
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static bool compareSymbolSize(const NMSymbol &A, const NMSymbol &B) {
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if (A.Size < B.Size)
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return true;
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else if (A.Size == B.Size && A.Name < B.Name)
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return true;
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else if (A.Size == B.Size && A.Name == B.Name && A.Address < B.Address)
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return true;
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else
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return false;
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}
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static bool compareSymbolName(const NMSymbol &A, const NMSymbol &B) {
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if (A.Name < B.Name)
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return true;
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else if (A.Name == B.Name && A.Size < B.Size)
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return true;
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else if (A.Name == B.Name && A.Size == B.Size && A.Address < B.Address)
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return true;
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else
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return false;
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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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static void sortAndPrintSymbolList() {
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if (!NoSort) {
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if (NumericSort)
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std::sort(SymbolList.begin(), SymbolList.end(), compareSymbolAddress);
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else if (SizeSort)
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std::sort(SymbolList.begin(), SymbolList.end(), compareSymbolSize);
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else
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std::sort(SymbolList.begin(), SymbolList.end(), compareSymbolName);
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}
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if (OutputFormat == posix && MultipleFiles) {
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outs() << '\n' << CurrentFilename << ":\n";
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} else if (OutputFormat == bsd && MultipleFiles) {
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outs() << "\n" << CurrentFilename << ":\n";
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} else if (OutputFormat == sysv) {
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outs() << "\n\nSymbols from " << CurrentFilename << ":\n\n"
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<< "Name Value Class Type"
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<< " Size Line Section\n";
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}
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for (SymbolListT::iterator I = SymbolList.begin(), E = SymbolList.end();
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I != E; ++I) {
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if ((I->TypeChar != 'U') && UndefinedOnly)
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continue;
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if ((I->TypeChar == 'U') && DefinedOnly)
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continue;
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if (SizeSort && !PrintAddress && I->Size == UnknownAddressOrSize)
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continue;
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char SymbolAddrStr[10] = "";
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char SymbolSizeStr[10] = "";
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if (OutputFormat == sysv || I->Address == object::UnknownAddressOrSize)
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strcpy(SymbolAddrStr, " ");
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if (OutputFormat == sysv)
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strcpy(SymbolSizeStr, " ");
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if (I->Address != object::UnknownAddressOrSize)
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format("%08" PRIx64, I->Address)
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.print(SymbolAddrStr, sizeof(SymbolAddrStr));
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if (I->Size != object::UnknownAddressOrSize)
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format("%08" PRIx64, I->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
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if (OutputFormat == posix) {
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outs() << I->Name << " " << I->TypeChar << " " << SymbolAddrStr
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<< SymbolSizeStr << "\n";
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} else if (OutputFormat == bsd) {
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if (PrintAddress)
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outs() << SymbolAddrStr << ' ';
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if (PrintSize) {
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outs() << SymbolSizeStr;
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if (I->Size != object::UnknownAddressOrSize)
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outs() << ' ';
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}
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outs() << I->TypeChar << " " << I->Name << "\n";
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} else if (OutputFormat == sysv) {
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std::string PaddedName(I->Name);
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while (PaddedName.length() < 20)
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PaddedName += " ";
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outs() << PaddedName << "|" << SymbolAddrStr << "| " << I->TypeChar
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<< " | |" << SymbolSizeStr << "| |\n";
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}
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}
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SymbolList.clear();
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}
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static char typeCharForSymbol(GlobalValue &GV) {
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if (GV.isDeclaration())
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return 'U';
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if (GV.hasLinkOnceLinkage())
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return 'C';
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if (GV.hasCommonLinkage())
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return 'C';
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if (GV.hasWeakLinkage())
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return 'W';
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if (isa<Function>(GV) && GV.hasInternalLinkage())
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return 't';
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if (isa<Function>(GV))
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return 'T';
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if (isa<GlobalVariable>(GV) && GV.hasInternalLinkage())
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return 'd';
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if (isa<GlobalVariable>(GV))
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return 'D';
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if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(&GV)) {
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const GlobalValue *AliasedGV = GA->getAliasedGlobal();
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if (isa<Function>(AliasedGV))
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return 'T';
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if (isa<GlobalVariable>(AliasedGV))
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return 'D';
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}
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return '?';
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}
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static void dumpSymbolNameForGlobalValue(GlobalValue &GV) {
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// Private linkage and available_externally linkage don't exist in symtab.
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if (GV.hasPrivateLinkage() || GV.hasLinkerPrivateLinkage() ||
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GV.hasLinkerPrivateWeakLinkage() || GV.hasAvailableExternallyLinkage())
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return;
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char TypeChar = typeCharForSymbol(GV);
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if (GV.hasLocalLinkage() && ExternalOnly)
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return;
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NMSymbol S;
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S.Address = object::UnknownAddressOrSize;
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S.Size = object::UnknownAddressOrSize;
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S.TypeChar = TypeChar;
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S.Name = GV.getName();
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SymbolList.push_back(S);
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}
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static void dumpSymbolNamesFromModule(Module *M) {
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CurrentFilename = M->getModuleIdentifier();
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std::for_each(M->begin(), M->end(), dumpSymbolNameForGlobalValue);
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std::for_each(M->global_begin(), M->global_end(),
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dumpSymbolNameForGlobalValue);
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if (!WithoutAliases)
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std::for_each(M->alias_begin(), M->alias_end(),
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dumpSymbolNameForGlobalValue);
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sortAndPrintSymbolList();
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}
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template <class ELFT>
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static error_code getSymbolNMTypeChar(ELFObjectFile<ELFT> &Obj,
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symbol_iterator I, char &Result) {
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typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
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typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
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DataRefImpl Symb = I->getRawDataRefImpl();
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const Elf_Sym *ESym = Obj.getSymbol(Symb);
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const ELFFile<ELFT> &EF = *Obj.getELFFile();
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const Elf_Shdr *ESec = EF.getSection(ESym);
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char Ret = '?';
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if (ESec) {
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switch (ESec->sh_type) {
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case ELF::SHT_PROGBITS:
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case ELF::SHT_DYNAMIC:
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switch (ESec->sh_flags) {
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case(ELF::SHF_ALLOC | ELF::SHF_EXECINSTR) :
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Ret = 't';
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break;
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case(ELF::SHF_TLS | ELF::SHF_ALLOC | ELF::SHF_WRITE) :
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case(ELF::SHF_ALLOC | ELF::SHF_WRITE) :
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Ret = 'd';
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break;
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case ELF::SHF_ALLOC:
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case(ELF::SHF_ALLOC | ELF::SHF_MERGE) :
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case(ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS) :
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Ret = 'r';
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break;
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}
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break;
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case ELF::SHT_NOBITS:
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Ret = 'b';
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}
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}
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switch (EF.getSymbolTableIndex(ESym)) {
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case ELF::SHN_UNDEF:
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if (Ret == '?')
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Ret = 'U';
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break;
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case ELF::SHN_ABS:
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Ret = 'a';
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break;
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case ELF::SHN_COMMON:
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Ret = 'c';
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break;
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}
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switch (ESym->getBinding()) {
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case ELF::STB_GLOBAL:
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Ret = ::toupper(Ret);
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break;
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case ELF::STB_WEAK:
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if (EF.getSymbolTableIndex(ESym) == ELF::SHN_UNDEF)
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Ret = 'w';
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else if (ESym->getType() == ELF::STT_OBJECT)
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Ret = 'V';
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else
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Ret = 'W';
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}
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if (Ret == '?' && ESym->getType() == ELF::STT_SECTION) {
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StringRef Name;
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error_code EC = I->getName(Name);
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if (EC)
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return EC;
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Result = StringSwitch<char>(Name)
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.StartsWith(".debug", 'N')
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.StartsWith(".note", 'n')
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.Default('?');
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return object_error::success;
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}
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Result = Ret;
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return object_error::success;
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}
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static error_code getSymbolNMTypeChar(COFFObjectFile &Obj, symbol_iterator I,
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char &Result) {
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const coff_symbol *Symb = Obj.getCOFFSymbol(I);
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StringRef Name;
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if (error_code EC = I->getName(Name))
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return EC;
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char Ret = StringSwitch<char>(Name)
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.StartsWith(".debug", 'N')
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.StartsWith(".sxdata", 'N')
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.Default('?');
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if (Ret != '?') {
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Result = Ret;
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return object_error::success;
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}
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uint32_t Characteristics = 0;
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if (Symb->SectionNumber > 0) {
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section_iterator SecI = Obj.end_sections();
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if (error_code EC = I->getSection(SecI))
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return EC;
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const coff_section *Section = Obj.getCOFFSection(SecI);
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Characteristics = Section->Characteristics;
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}
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switch (Symb->SectionNumber) {
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case COFF::IMAGE_SYM_UNDEFINED:
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// Check storage classes.
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if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL) {
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Result = 'w';
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return object_error::success; // Don't do ::toupper.
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} else if (Symb->Value != 0) // Check for common symbols.
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Ret = 'c';
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else
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Ret = 'u';
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break;
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case COFF::IMAGE_SYM_ABSOLUTE:
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Ret = 'a';
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break;
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case COFF::IMAGE_SYM_DEBUG:
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Ret = 'n';
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break;
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default:
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// Check section type.
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if (Characteristics & COFF::IMAGE_SCN_CNT_CODE)
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Ret = 't';
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else if (Characteristics & COFF::IMAGE_SCN_MEM_READ &&
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~Characteristics & COFF::IMAGE_SCN_MEM_WRITE) // Read only.
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Ret = 'r';
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else if (Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
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Ret = 'd';
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else if (Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
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Ret = 'b';
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else if (Characteristics & COFF::IMAGE_SCN_LNK_INFO)
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Ret = 'i';
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// Check for section symbol.
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else if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC &&
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Symb->Value == 0)
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Ret = 's';
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}
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if (Symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
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Ret = ::toupper(static_cast<unsigned char>(Ret));
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Result = Ret;
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return object_error::success;
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}
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static uint8_t getNType(MachOObjectFile &Obj, DataRefImpl Symb) {
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if (Obj.is64Bit()) {
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MachO::nlist_64 STE = Obj.getSymbol64TableEntry(Symb);
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return STE.n_type;
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}
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MachO::nlist STE = Obj.getSymbolTableEntry(Symb);
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return STE.n_type;
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}
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static error_code getSymbolNMTypeChar(MachOObjectFile &Obj, symbol_iterator I,
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char &Res) {
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DataRefImpl Symb = I->getRawDataRefImpl();
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uint8_t NType = getNType(Obj, Symb);
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char Char;
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switch (NType & MachO::N_TYPE) {
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case MachO::N_UNDF:
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Char = 'u';
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break;
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case MachO::N_ABS:
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Char = 's';
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break;
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case MachO::N_SECT: {
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section_iterator Sec = Obj.end_sections();
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Obj.getSymbolSection(Symb, Sec);
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DataRefImpl Ref = Sec->getRawDataRefImpl();
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StringRef SectionName;
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Obj.getSectionName(Ref, SectionName);
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StringRef SegmentName = Obj.getSectionFinalSegmentName(Ref);
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if (SegmentName == "__TEXT" && SectionName == "__text")
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Char = 't';
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else
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Char = 's';
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} break;
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default:
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Char = '?';
|
|
break;
|
|
}
|
|
|
|
if (NType & (MachO::N_EXT | MachO::N_PEXT))
|
|
Char = toupper(static_cast<unsigned char>(Char));
|
|
Res = Char;
|
|
return object_error::success;
|
|
}
|
|
|
|
static char getNMTypeChar(ObjectFile *Obj, symbol_iterator I) {
|
|
char Res = '?';
|
|
if (COFFObjectFile *COFF = dyn_cast<COFFObjectFile>(Obj)) {
|
|
error(getSymbolNMTypeChar(*COFF, I, Res));
|
|
return Res;
|
|
}
|
|
if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(Obj)) {
|
|
error(getSymbolNMTypeChar(*MachO, I, Res));
|
|
return Res;
|
|
}
|
|
|
|
if (ELF32LEObjectFile *ELF = dyn_cast<ELF32LEObjectFile>(Obj)) {
|
|
error(getSymbolNMTypeChar(*ELF, I, Res));
|
|
return Res;
|
|
}
|
|
if (ELF64LEObjectFile *ELF = dyn_cast<ELF64LEObjectFile>(Obj)) {
|
|
error(getSymbolNMTypeChar(*ELF, I, Res));
|
|
return Res;
|
|
}
|
|
if (ELF32BEObjectFile *ELF = dyn_cast<ELF32BEObjectFile>(Obj)) {
|
|
error(getSymbolNMTypeChar(*ELF, I, Res));
|
|
return Res;
|
|
}
|
|
ELF64BEObjectFile *ELF = cast<ELF64BEObjectFile>(Obj);
|
|
error(getSymbolNMTypeChar(*ELF, I, Res));
|
|
return Res;
|
|
}
|
|
|
|
static void dumpSymbolNamesFromObject(ObjectFile *Obj) {
|
|
symbol_iterator IBegin = Obj->begin_symbols();
|
|
symbol_iterator IEnd = Obj->end_symbols();
|
|
if (DynamicSyms) {
|
|
IBegin = Obj->begin_dynamic_symbols();
|
|
IEnd = Obj->end_dynamic_symbols();
|
|
}
|
|
for (symbol_iterator I = IBegin; I != IEnd; ++I) {
|
|
uint32_t SymFlags;
|
|
if (error(I->getFlags(SymFlags)))
|
|
break;
|
|
if (!DebugSyms && (SymFlags & SymbolRef::SF_FormatSpecific))
|
|
continue;
|
|
NMSymbol S;
|
|
S.Size = object::UnknownAddressOrSize;
|
|
S.Address = object::UnknownAddressOrSize;
|
|
if (PrintSize || SizeSort) {
|
|
if (error(I->getSize(S.Size)))
|
|
break;
|
|
}
|
|
if (PrintAddress)
|
|
if (error(I->getAddress(S.Address)))
|
|
break;
|
|
S.TypeChar = getNMTypeChar(Obj, I);
|
|
if (error(I->getName(S.Name)))
|
|
break;
|
|
SymbolList.push_back(S);
|
|
}
|
|
|
|
CurrentFilename = Obj->getFileName();
|
|
sortAndPrintSymbolList();
|
|
}
|
|
|
|
static void dumpSymbolNamesFromFile(std::string &Filename) {
|
|
OwningPtr<MemoryBuffer> Buffer;
|
|
if (error(MemoryBuffer::getFileOrSTDIN(Filename, Buffer), Filename))
|
|
return;
|
|
|
|
sys::fs::file_magic Magic = sys::fs::identify_magic(Buffer->getBuffer());
|
|
|
|
LLVMContext &Context = getGlobalContext();
|
|
if (Magic == sys::fs::file_magic::bitcode) {
|
|
ErrorOr<Module *> ModuleOrErr = parseBitcodeFile(Buffer.get(), Context);
|
|
if (error(ModuleOrErr.getError(), Filename)) {
|
|
return;
|
|
} else {
|
|
Module *Result = ModuleOrErr.get();
|
|
dumpSymbolNamesFromModule(Result);
|
|
delete Result;
|
|
}
|
|
return;
|
|
}
|
|
|
|
ErrorOr<Binary *> BinaryOrErr = object::createBinary(Buffer.take(), Magic);
|
|
if (error(BinaryOrErr.getError(), Filename))
|
|
return;
|
|
OwningPtr<Binary> Bin(BinaryOrErr.get());
|
|
|
|
if (object::Archive *A = dyn_cast<object::Archive>(Bin.get())) {
|
|
if (ArchiveMap) {
|
|
object::Archive::symbol_iterator I = A->symbol_begin();
|
|
object::Archive::symbol_iterator E = A->symbol_end();
|
|
if (I != E) {
|
|
outs() << "Archive map"
|
|
<< "\n";
|
|
for (; I != E; ++I) {
|
|
object::Archive::child_iterator C;
|
|
StringRef SymName;
|
|
StringRef FileName;
|
|
if (error(I->getMember(C)))
|
|
return;
|
|
if (error(I->getName(SymName)))
|
|
return;
|
|
if (error(C->getName(FileName)))
|
|
return;
|
|
outs() << SymName << " in " << FileName << "\n";
|
|
}
|
|
outs() << "\n";
|
|
}
|
|
}
|
|
|
|
for (object::Archive::child_iterator I = A->child_begin(),
|
|
E = A->child_end();
|
|
I != E; ++I) {
|
|
OwningPtr<Binary> Child;
|
|
if (I->getAsBinary(Child)) {
|
|
// Try opening it as a bitcode file.
|
|
OwningPtr<MemoryBuffer> Buff;
|
|
if (error(I->getMemoryBuffer(Buff)))
|
|
return;
|
|
|
|
ErrorOr<Module *> ModuleOrErr = parseBitcodeFile(Buff.get(), Context);
|
|
if (ModuleOrErr) {
|
|
Module *Result = ModuleOrErr.get();
|
|
dumpSymbolNamesFromModule(Result);
|
|
delete Result;
|
|
}
|
|
continue;
|
|
}
|
|
if (object::ObjectFile *O = dyn_cast<ObjectFile>(Child.get())) {
|
|
outs() << O->getFileName() << ":\n";
|
|
dumpSymbolNamesFromObject(O);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
if (object::MachOUniversalBinary *UB =
|
|
dyn_cast<object::MachOUniversalBinary>(Bin.get())) {
|
|
for (object::MachOUniversalBinary::object_iterator I = UB->begin_objects(),
|
|
E = UB->end_objects();
|
|
I != E; ++I) {
|
|
OwningPtr<ObjectFile> Obj;
|
|
if (!I->getAsObjectFile(Obj)) {
|
|
outs() << Obj->getFileName() << ":\n";
|
|
dumpSymbolNamesFromObject(Obj.get());
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
if (object::ObjectFile *O = dyn_cast<ObjectFile>(Bin.get())) {
|
|
dumpSymbolNamesFromObject(O);
|
|
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;
|
|
|
|
ToolName = argv[0];
|
|
if (BSDFormat)
|
|
OutputFormat = bsd;
|
|
if (POSIXFormat)
|
|
OutputFormat = posix;
|
|
|
|
// 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("-");
|
|
case 1:
|
|
break;
|
|
default:
|
|
MultipleFiles = true;
|
|
}
|
|
|
|
std::for_each(InputFilenames.begin(), InputFilenames.end(),
|
|
dumpSymbolNamesFromFile);
|
|
|
|
if (HadError)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|