//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This program is a utility that works like traditional Unix "nm",
-// that is, it prints out the names of symbols in a bytecode file,
+// that is, it prints out the names of symbols in a bitcode file,
// along with some information about each symbol.
//
// This "nm" does not print symbols' addresses. It supports many of
//
//===----------------------------------------------------------------------===//
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Bitcode/Archive.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Signals.h"
#include <algorithm>
#include <cctype>
#include <cerrno>
#include <cstring>
-#include <iostream>
using namespace llvm;
namespace {
cl::aliasopt(OutputFormat));
cl::list<std::string>
- InputFilenames(cl::Positional, cl::desc("<input bytecode files>"),
+ InputFilenames(cl::Positional, cl::desc("<input bitcode files>"),
cl::ZeroOrMore);
cl::opt<bool> UndefinedOnly("undefined-only",
}
static char TypeCharForSymbol(GlobalValue &GV) {
- if (GV.isDeclaration()) return 'U';
+ if (GV.isDeclaration()) return 'U';
if (GV.hasLinkOnceLinkage()) return 'C';
+ if (GV.hasCommonLinkage()) return 'C';
if (GV.hasWeakLinkage()) return 'W';
- if (isa<Function>(GV) && GV.hasInternalLinkage()) return 't';
+ if (isa<Function>(GV) && GV.hasInternalLinkage()) return 't';
if (isa<Function>(GV)) return 'T';
- if (isa<GlobalVariable>(GV) && GV.hasInternalLinkage()) return 'd';
+ if (isa<GlobalVariable>(GV) && GV.hasInternalLinkage()) return 'd';
if (isa<GlobalVariable>(GV)) return 'D';
- return '?';
+ if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(&GV)) {
+ const GlobalValue *AliasedGV = GA->getAliasedGlobal();
+ if (isa<Function>(AliasedGV)) return 'T';
+ if (isa<GlobalVariable>(AliasedGV)) return 'D';
+ }
+ return '?';
}
static void DumpSymbolNameForGlobalValue(GlobalValue &GV) {
+ // Private linkage and available_externally linkage don't exist in symtab.
+ if (GV.hasPrivateLinkage() || GV.hasLinkerPrivateLinkage() ||
+ GV.hasLinkerPrivateWeakLinkage() || GV.hasAvailableExternallyLinkage())
+ return;
+
const std::string SymbolAddrStr = " "; // Not used yet...
- char TypeChar = TypeCharForSymbol (GV);
+ char TypeChar = TypeCharForSymbol(GV);
if ((TypeChar != 'U') && UndefinedOnly)
return;
if ((TypeChar == 'U') && DefinedOnly)
return;
- if (GV.hasInternalLinkage () && ExternalOnly)
+ if (GV.hasLocalLinkage () && ExternalOnly)
return;
if (OutputFormat == posix) {
- std::cout << GV.getName () << " " << TypeCharForSymbol (GV) << " "
- << SymbolAddrStr << "\n";
+ outs() << GV.getName () << " " << TypeCharForSymbol(GV) << " "
+ << SymbolAddrStr << "\n";
} else if (OutputFormat == bsd) {
- std::cout << SymbolAddrStr << " " << TypeCharForSymbol (GV) << " "
- << GV.getName () << "\n";
+ outs() << SymbolAddrStr << " " << TypeCharForSymbol(GV) << " "
+ << GV.getName () << "\n";
} else if (OutputFormat == sysv) {
std::string PaddedName (GV.getName ());
while (PaddedName.length () < 20)
PaddedName += " ";
- std::cout << PaddedName << "|" << SymbolAddrStr << "| "
- << TypeCharForSymbol (GV)
- << " | | | |\n";
+ outs() << PaddedName << "|" << SymbolAddrStr << "| "
+ << TypeCharForSymbol(GV)
+ << " | | | |\n";
}
}
static void DumpSymbolNamesFromModule(Module *M) {
const std::string &Filename = M->getModuleIdentifier ();
if (OutputFormat == posix && MultipleFiles) {
- std::cout << Filename << ":\n";
+ outs() << Filename << ":\n";
} else if (OutputFormat == bsd && MultipleFiles) {
- std::cout << "\n" << Filename << ":\n";
+ outs() << "\n" << Filename << ":\n";
} else if (OutputFormat == sysv) {
- std::cout << "\n\nSymbols from " << Filename << ":\n\n"
- << "Name Value Class Type"
- << " Size Line Section\n";
+ outs() << "\n\nSymbols from " << Filename << ":\n\n"
+ << "Name Value Class Type"
+ << " Size Line Section\n";
}
- std::for_each (M->begin (), M->end (), DumpSymbolNameForGlobalValue);
- std::for_each (M->global_begin (), M->global_end (), DumpSymbolNameForGlobalValue);
+ std::for_each (M->begin(), M->end(), DumpSymbolNameForGlobalValue);
+ std::for_each (M->global_begin(), M->global_end(),
+ DumpSymbolNameForGlobalValue);
+ std::for_each (M->alias_begin(), M->alias_end(),
+ DumpSymbolNameForGlobalValue);
}
static void DumpSymbolNamesFromFile(std::string &Filename) {
+ LLVMContext &Context = getGlobalContext();
std::string ErrorMessage;
sys::Path aPath(Filename);
// Note: Currently we do not support reading an archive from stdin.
MemoryBuffer::getFileOrSTDIN(Filename, &ErrorMessage));
Module *Result = 0;
if (Buffer.get())
- Result = ParseBitcodeFile(Buffer.get(), &ErrorMessage);
+ Result = ParseBitcodeFile(Buffer.get(), Context, &ErrorMessage);
- if (Result)
+ if (Result) {
DumpSymbolNamesFromModule(Result);
- else {
- std::cerr << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
- return;
- }
+ delete Result;
+ } else
+ errs() << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
} else if (aPath.isArchive()) {
std::string ErrMsg;
- Archive* archive = Archive::OpenAndLoad(sys::Path(Filename), &ErrorMessage);
+ Archive* archive = Archive::OpenAndLoad(sys::Path(Filename), Context,
+ &ErrorMessage);
if (!archive)
- std::cerr << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
+ errs() << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
std::vector<Module *> Modules;
if (archive->getAllModules(Modules, &ErrorMessage)) {
- std::cerr << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
+ errs() << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
return;
}
MultipleFiles = true;
std::for_each (Modules.begin(), Modules.end(), DumpSymbolNamesFromModule);
} else {
- std::cerr << ToolName << ": " << Filename << ": "
- << "unrecognizable file type\n";
+ errs() << ToolName << ": " << Filename << ": "
+ << "unrecognizable file type\n";
return;
}
}
int main(int argc, char **argv) {
- llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
- cl::ParseCommandLineOptions(argc, argv, " llvm symbol table dumper\n");
+ // 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");
ToolName = argv[0];
if (BSDFormat) OutputFormat = bsd;
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