//
//===----------------------------------------------------------------------===//
//
-// This program is a utility that works like traditional Unix "nm",
-// that is, it prints out the names of symbols in a bitcode file,
-// along with some information about each symbol.
+// This program is a utility that works like traditional Unix "nm", that is, it
+// prints out the names of symbols in a bitcode or object file, along with some
+// information about each symbol.
//
-// This "nm" does not print symbols' addresses. It supports many of
-// the features of GNU "nm", including its different output formats.
+// This "nm" supports many of the features of GNU "nm", including its different
+// output formats.
//
//===----------------------------------------------------------------------===//
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/LLVMContext.h"
#include "llvm/Bitcode/Archive.h"
+#include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Object/Archive.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Format.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PrettyStackTrace.h"
-#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Program.h"
#include "llvm/Support/Signals.h"
-#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/system_error.h"
#include <algorithm>
#include <cctype>
cl::alias UndefinedOnly2("u", cl::desc("Alias for --undefined-only"),
cl::aliasopt(UndefinedOnly));
+ cl::opt<bool> DynamicSyms("dynamic",
+ cl::desc("Display the dynamic symbols instead "
+ "of normal symbols."));
+ cl::alias DynamicSyms2("D", cl::desc("Alias for --dynamic"),
+ cl::aliasopt(DynamicSyms));
+
cl::opt<bool> DefinedOnly("defined-only",
cl::desc("Show only defined symbols"));
cl::opt<bool> SizeSort("size-sort", cl::desc("Sort symbols by size"));
+ cl::opt<bool> WithoutAliases("without-aliases", cl::Hidden,
+ cl::desc("Exclude aliases from output"));
+
+ cl::opt<bool> ArchiveMap("print-armap",
+ cl::desc("Print the archive map"));
+ cl::alias ArchiveMaps("s", cl::desc("Alias for --print-armap"),
+ cl::aliasopt(ArchiveMap));
bool PrintAddress = true;
bool MultipleFiles = false;
std::string ToolName;
}
+
+static void error(Twine message, Twine path = Twine()) {
+ errs() << ToolName << ": " << path << ": " << message << ".\n";
+}
+
+static bool error(error_code ec, Twine path = Twine()) {
+ if (ec) {
+ error(ec.message(), path);
+ return true;
+ }
+ return false;
+}
+
namespace {
struct NMSymbol {
uint64_t Address;
return true;
else if (a.Address == b.Address && a.Name < b.Name)
return true;
+ else if (a.Address == b.Address && a.Name == b.Name && a.Size < b.Size)
+ return true;
else
return false;
return true;
else if (a.Size == b.Size && a.Name < b.Name)
return true;
+ else if (a.Size == b.Size && a.Name == b.Name && a.Address < b.Address)
+ return true;
else
return false;
}
static bool CompareSymbolName(const NMSymbol &a, const NMSymbol &b) {
- return a.Name < b.Name;
+ if (a.Name < b.Name)
+ return true;
+ else if (a.Name == b.Name && a.Size < b.Size)
+ return true;
+ else if (a.Name == b.Name && a.Size == b.Size && a.Address < b.Address)
+ return true;
+ else
+ return false;
}
StringRef CurrentFilename;
strcpy(SymbolSizeStr, " ");
if (i->Address != object::UnknownAddressOrSize)
- format("%08x", i->Address).print(SymbolAddrStr, sizeof(SymbolAddrStr));
+ format("%08" PRIx64, i->Address).print(SymbolAddrStr,
+ sizeof(SymbolAddrStr));
if (i->Size != object::UnknownAddressOrSize)
- format("%08x", i->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
+ format("%08" PRIx64, i->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
if (OutputFormat == posix) {
outs() << i->Name << " " << i->TypeChar << " "
if (GV.hasPrivateLinkage() ||
GV.hasLinkerPrivateLinkage() ||
GV.hasLinkerPrivateWeakLinkage() ||
- GV.hasLinkerPrivateWeakDefAutoLinkage() ||
GV.hasAvailableExternallyLinkage())
return;
char TypeChar = TypeCharForSymbol(GV);
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);
+ if (!WithoutAliases)
+ std::for_each (M->alias_begin(), M->alias_end(),
+ DumpSymbolNameForGlobalValue);
SortAndPrintSymbolList();
}
static void DumpSymbolNamesFromObject(ObjectFile *obj) {
- for (ObjectFile::symbol_iterator i = obj->begin_symbols(),
- e = obj->end_symbols(); i != e; ++i) {
- if (!DebugSyms && i->isInternal())
+ error_code ec;
+ 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.increment(ec)) {
+ if (error(ec)) break;
+ 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)
- s.Size = i->getSize();
+ if (PrintSize || SizeSort) {
+ if (error(i->getSize(s.Size))) break;
+ }
if (PrintAddress)
- s.Address = i->getAddress();
- s.TypeChar = i->getNMTypeChar();
- s.Name = i->getName();
+ if (error(i->getAddress(s.Address))) break;
+ if (error(i->getNMTypeChar(s.TypeChar))) break;
+ if (error(i->getName(s.Name))) break;
SymbolList.push_back(s);
}
}
static void DumpSymbolNamesFromFile(std::string &Filename) {
+ if (Filename != "-" && !sys::fs::exists(Filename)) {
+ errs() << ToolName << ": '" << Filename << "': " << "No such file\n";
+ return;
+ }
+
+ 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();
std::string ErrorMessage;
- sys::Path aPath(Filename);
- bool exists;
- if (sys::fs::exists(aPath.str(), exists) || !exists)
- errs() << ToolName << ": '" << Filename << "': " << "No such file\n";
- // Note: Currently we do not support reading an archive from stdin.
- if (Filename == "-" || aPath.isBitcodeFile()) {
- OwningPtr<MemoryBuffer> Buffer;
- if (error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buffer))
- ErrorMessage = ec.message();
+ if (magic == sys::fs::file_magic::bitcode) {
Module *Result = 0;
- if (Buffer.get())
- Result = ParseBitcodeFile(Buffer.get(), Context, &ErrorMessage);
-
+ Result = ParseBitcodeFile(Buffer.get(), Context, &ErrorMessage);
if (Result) {
DumpSymbolNamesFromModule(Result);
delete Result;
- } else
- errs() << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
-
- } else if (aPath.isArchive()) {
- std::string ErrMsg;
- Archive* archive = Archive::OpenAndLoad(sys::Path(Filename), Context,
- &ErrorMessage);
- if (!archive)
- errs() << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
- std::vector<Module *> Modules;
- if (archive->getAllModules(Modules, &ErrorMessage)) {
- errs() << ToolName << ": " << Filename << ": " << ErrorMessage << "\n";
+ } else {
+ error(ErrorMessage, Filename);
return;
}
- MultipleFiles = true;
- std::for_each (Modules.begin(), Modules.end(), DumpSymbolNamesFromModule);
- } else if (aPath.isObjectFile()) {
- OwningPtr<Binary> obj;
- if (error_code ec = object::createBinary(aPath.str(), obj)) {
- errs() << ToolName << ": " << Filename << ": " << ec.message() << ".\n";
+ } else if (magic == sys::fs::file_magic::archive) {
+ OwningPtr<Binary> arch;
+ if (error(object::createBinary(Buffer.take(), arch), Filename))
return;
+
+ if (object::Archive *a = dyn_cast<object::Archive>(arch.get())) {
+ if (ArchiveMap) {
+ outs() << "Archive map" << "\n";
+ for (object::Archive::symbol_iterator i = a->begin_symbols(),
+ e = a->end_symbols(); 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->begin_children(),
+ e = a->end_children(); 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;
+ Module *Result = 0;
+ if (buff)
+ Result = ParseBitcodeFile(buff.get(), Context, &ErrorMessage);
+
+ if (Result) {
+ DumpSymbolNamesFromModule(Result);
+ delete Result;
+ }
+ continue;
+ }
+ if (object::ObjectFile *o = dyn_cast<ObjectFile>(child.get())) {
+ outs() << o->getFileName() << ":\n";
+ DumpSymbolNamesFromObject(o);
+ }
+ }
}
+ } else if (magic.is_object()) {
+ OwningPtr<Binary> obj;
+ if (error(object::createBinary(Buffer.take(), obj), Filename))
+ return;
if (object::ObjectFile *o = dyn_cast<ObjectFile>(obj.get()))
DumpSymbolNamesFromObject(o);
} else {
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::Program::ChangeStdinToBinary()))
+ return 1;
+
ToolName = argv[0];
if (BSDFormat) OutputFormat = bsd;
if (POSIXFormat) OutputFormat = posix;
projects / oota-llvm.git / blobdiff