//===-- llvm-nm.cpp - Symbol table dumping utility for llvm ---------------===//
//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
// This program is a utility that works like traditional Unix "nm",
-// that is, it prints out the names of symbols in a 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
// the features of GNU "nm", including its different output formats.
//
//===----------------------------------------------------------------------===//
-#include "Support/CommandLine.h"
-#include "llvm/Bytecode/Reader.h"
-#include "llvm/GlobalValue.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/System/Signals.h"
+#include <algorithm>
#include <cctype>
+#include <cerrno>
+#include <cstring>
+#include <iostream>
+using namespace llvm;
namespace {
enum OutputFormatTy { bsd, sysv, posix };
cl::desc("Specify output format"),
cl::values(clEnumVal(bsd, "BSD format"),
clEnumVal(sysv, "System V format"),
- clEnumVal(posix, "POSIX.2 format"), 0), cl::init(bsd));
+ clEnumVal(posix, "POSIX.2 format"),
+ clEnumValEnd), cl::init(bsd));
cl::alias OutputFormat2("f", cl::desc("Alias for --format"),
cl::aliasopt(OutputFormat));
- cl::list<std::string>
- InputFilenames(cl::Positional, cl::desc("<input bytecode files>"),
+ cl::list<std::string>
+ InputFilenames(cl::Positional, cl::desc("<input bitcode files>"),
cl::ZeroOrMore);
cl::opt<bool> UndefinedOnly("undefined-only",
bool MultipleFiles = false;
std::string ToolName;
-};
-
-char TypeCharForSymbol (GlobalValue &GV) {
- if (GV.isExternal ()) return 'U';
- if (GV.hasLinkOnceLinkage ()) return 'C';
- if (GV.hasWeakLinkage ()) return 'W';
- 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)) return 'D';
- return '?';
}
-void DumpSymbolNameForGlobalValue (GlobalValue &GV) {
+static char TypeCharForSymbol(GlobalValue &GV) {
+ 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)) return 'T';
+ if (isa<GlobalVariable>(GV) && GV.hasInternalLinkage()) return 'd';
+ if (isa<GlobalVariable>(GV)) return 'D';
+ 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) {
const std::string SymbolAddrStr = " "; // Not used yet...
char TypeChar = TypeCharForSymbol (GV);
if ((TypeChar != 'U') && UndefinedOnly)
}
}
-void DumpSymbolNamesFromModule (Module *M) {
+static void DumpSymbolNamesFromModule(Module *M) {
+ const std::string &Filename = M->getModuleIdentifier ();
+ if (OutputFormat == posix && MultipleFiles) {
+ std::cout << Filename << ":\n";
+ } else if (OutputFormat == bsd && MultipleFiles) {
+ std::cout << "\n" << Filename << ":\n";
+ } else if (OutputFormat == sysv) {
+ std::cout << "\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->gbegin (), M->gend (), DumpSymbolNameForGlobalValue);
+ std::for_each (M->global_begin (), M->global_end (),
+ DumpSymbolNameForGlobalValue);
+ std::for_each (M->alias_begin (), M->alias_end (),
+ DumpSymbolNameForGlobalValue);
}
-void DumpSymbolNamesFromFile (std::string &Filename) {
+static void DumpSymbolNamesFromFile(std::string &Filename) {
std::string ErrorMessage;
- Module *Result = ParseBytecodeFile(Filename, &ErrorMessage);
- if (Result) {
- if (OutputFormat == posix && MultipleFiles) {
- std::cout << Filename << ":\n";
- } else if (OutputFormat == bsd && MultipleFiles) {
- std::cout << "\n" << Filename << ":\n";
- } else if (OutputFormat == sysv) {
- std::cout << "\n\nSymbols from " << Filename << ":\n\n"
- << "Name Value Class Type"
- << " Size Line Section\n";
+ sys::Path aPath(Filename);
+ // Note: Currently we do not support reading an archive from stdin.
+ if (Filename == "-" || aPath.isBitcodeFile()) {
+ std::auto_ptr<MemoryBuffer> Buffer(
+ MemoryBuffer::getFileOrSTDIN(Filename, &ErrorMessage));
+ Module *Result = 0;
+ if (Buffer.get())
+ Result = ParseBitcodeFile(Buffer.get(), &ErrorMessage);
+
+ if (Result)
+ DumpSymbolNamesFromModule(Result);
+ else {
+ std::cerr << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
+ return;
}
- DumpSymbolNamesFromModule (Result);
+
+ } else if (aPath.isArchive()) {
+ std::string ErrMsg;
+ Archive* archive = Archive::OpenAndLoad(sys::Path(Filename), &ErrorMessage);
+ if (!archive)
+ std::cerr << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
+ std::vector<Module *> Modules;
+ if (archive->getAllModules(Modules, &ErrorMessage)) {
+ std::cerr << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
+ return;
+ }
+ MultipleFiles = true;
+ std::for_each (Modules.begin(), Modules.end(), DumpSymbolNamesFromModule);
} else {
- std::cerr << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
+ std::cerr << ToolName << ": " << Filename << ": "
+ << "unrecognizable file type\n";
+ return;
}
}
int main(int argc, char **argv) {
- cl::ParseCommandLineOptions(argc, argv, " llvm symbol table dumper\n");
+ llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
+ cl::ParseCommandLineOptions(argc, argv, "llvm symbol table dumper\n");
+ sys::PrintStackTraceOnErrorSignal();
+
ToolName = argv[0];
if (BSDFormat) OutputFormat = bsd;
if (POSIXFormat) OutputFormat = posix;
default: MultipleFiles = true;
}
- std::for_each (InputFilenames.begin (), InputFilenames.end (),
- DumpSymbolNamesFromFile);
+ std::for_each(InputFilenames.begin(), InputFilenames.end(),
+ DumpSymbolNamesFromFile);
return 0;
}
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