aboutsummaryrefslogtreecommitdiffstats
path: root/tools/llvm-nm
diff options
context:
space:
mode:
Diffstat (limited to 'tools/llvm-nm')
-rw-r--r--tools/llvm-nm/CMakeLists.txt5
-rw-r--r--tools/llvm-nm/llvm-nm.cpp822
2 files changed, 378 insertions, 449 deletions
diff --git a/tools/llvm-nm/CMakeLists.txt b/tools/llvm-nm/CMakeLists.txt
index b1672ff..6128bf9 100644
--- a/tools/llvm-nm/CMakeLists.txt
+++ b/tools/llvm-nm/CMakeLists.txt
@@ -1,4 +1,7 @@
-set(LLVM_LINK_COMPONENTS bitreader object)
+set(LLVM_LINK_COMPONENTS
+ Object
+ Support
+ )
add_llvm_tool(llvm-nm
llvm-nm.cpp
diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 8449c29..22e019a 100644
--- a/tools/llvm-nm/llvm-nm.cpp
+++ b/tools/llvm-nm/llvm-nm.cpp
@@ -16,15 +16,18 @@
//
//===----------------------------------------------------------------------===//
+#include "llvm/IR/Function.h"
+#include "llvm/IR/GlobalAlias.h"
+#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/LLVMContext.h"
-#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/IR/Module.h"
#include "llvm/Object/Archive.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/ELFObjectFile.h"
+#include "llvm/Object/IRObjectFile.h"
#include "llvm/Object/MachO.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/COFF.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
@@ -44,160 +47,152 @@ using namespace llvm;
using namespace object;
namespace {
- enum OutputFormatTy { bsd, sysv, posix };
- cl::opt<OutputFormatTy>
- OutputFormat("format",
- cl::desc("Specify output format"),
- cl::values(clEnumVal(bsd, "BSD format"),
- clEnumVal(sysv, "System V format"),
- 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 bitcode files>"),
- cl::ZeroOrMore);
-
- cl::opt<bool> UndefinedOnly("undefined-only",
- cl::desc("Show only undefined symbols"));
- 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> ExternalOnly("extern-only",
- cl::desc("Show only external symbols"));
- cl::alias ExternalOnly2("g", cl::desc("Alias for --extern-only"),
- cl::aliasopt(ExternalOnly));
-
- cl::opt<bool> BSDFormat("B", cl::desc("Alias for --format=bsd"));
- cl::opt<bool> POSIXFormat("P", cl::desc("Alias for --format=posix"));
-
- cl::opt<bool> PrintFileName("print-file-name",
+enum OutputFormatTy { bsd, sysv, posix };
+cl::opt<OutputFormatTy> OutputFormat(
+ "format", cl::desc("Specify output format"),
+ cl::values(clEnumVal(bsd, "BSD format"), clEnumVal(sysv, "System V format"),
+ 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 files>"),
+ cl::ZeroOrMore);
+
+cl::opt<bool> UndefinedOnly("undefined-only",
+ cl::desc("Show only undefined symbols"));
+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> ExternalOnly("extern-only",
+ cl::desc("Show only external symbols"));
+cl::alias ExternalOnly2("g", cl::desc("Alias for --extern-only"),
+ cl::aliasopt(ExternalOnly));
+
+cl::opt<bool> BSDFormat("B", cl::desc("Alias for --format=bsd"));
+cl::opt<bool> POSIXFormat("P", cl::desc("Alias for --format=posix"));
+
+cl::opt<bool> PrintFileName(
+ "print-file-name",
cl::desc("Precede each symbol with the object file it came from"));
- cl::alias PrintFileNameA("A", cl::desc("Alias for --print-file-name"),
- cl::aliasopt(PrintFileName));
- cl::alias PrintFileNameo("o", cl::desc("Alias for --print-file-name"),
- cl::aliasopt(PrintFileName));
+cl::alias PrintFileNameA("A", cl::desc("Alias for --print-file-name"),
+ cl::aliasopt(PrintFileName));
+cl::alias PrintFileNameo("o", cl::desc("Alias for --print-file-name"),
+ cl::aliasopt(PrintFileName));
- cl::opt<bool> DebugSyms("debug-syms",
- cl::desc("Show all symbols, even debugger only"));
- cl::alias DebugSymsa("a", cl::desc("Alias for --debug-syms"),
- cl::aliasopt(DebugSyms));
+cl::opt<bool> DebugSyms("debug-syms",
+ cl::desc("Show all symbols, even debugger only"));
+cl::alias DebugSymsa("a", cl::desc("Alias for --debug-syms"),
+ cl::aliasopt(DebugSyms));
- cl::opt<bool> NumericSort("numeric-sort",
- cl::desc("Sort symbols by address"));
- cl::alias NumericSortn("n", cl::desc("Alias for --numeric-sort"),
- cl::aliasopt(NumericSort));
- cl::alias NumericSortv("v", cl::desc("Alias for --numeric-sort"),
- cl::aliasopt(NumericSort));
+cl::opt<bool> NumericSort("numeric-sort", cl::desc("Sort symbols by address"));
+cl::alias NumericSortn("n", cl::desc("Alias for --numeric-sort"),
+ cl::aliasopt(NumericSort));
+cl::alias NumericSortv("v", cl::desc("Alias for --numeric-sort"),
+ cl::aliasopt(NumericSort));
- cl::opt<bool> NoSort("no-sort",
- cl::desc("Show symbols in order encountered"));
- cl::alias NoSortp("p", cl::desc("Alias for --no-sort"),
- cl::aliasopt(NoSort));
+cl::opt<bool> NoSort("no-sort", cl::desc("Show symbols in order encountered"));
+cl::alias NoSortp("p", cl::desc("Alias for --no-sort"), cl::aliasopt(NoSort));
- cl::opt<bool> PrintSize("print-size",
- cl::desc("Show symbol size instead of address"));
- cl::alias PrintSizeS("S", cl::desc("Alias for --print-size"),
- cl::aliasopt(PrintSize));
+cl::opt<bool> PrintSize("print-size",
+ cl::desc("Show symbol size instead of address"));
+cl::alias PrintSizeS("S", cl::desc("Alias for --print-size"),
+ cl::aliasopt(PrintSize));
- cl::opt<bool> SizeSort("size-sort", cl::desc("Sort symbols by size"));
+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> 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;
+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;
+bool MultipleFiles = false;
- bool HadError = false;
+bool HadError = false;
- std::string ToolName;
+std::string ToolName;
}
-
-static void error(Twine message, Twine path = Twine()) {
- errs() << ToolName << ": " << path << ": " << message << ".\n";
+static void error(Twine Message, Twine Path = Twine()) {
+ HadError = true;
+ errs() << ToolName << ": " << Path << ": " << Message << ".\n";
}
-static bool error(error_code ec, Twine path = Twine()) {
- if (ec) {
- error(ec.message(), path);
- HadError = true;
+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;
- uint64_t Size;
- char TypeChar;
- StringRef Name;
- };
-
- static bool CompareSymbolAddress(const NMSymbol &a, const NMSymbol &b) {
- if (a.Address < b.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;
-
- }
+struct NMSymbol {
+ uint64_t Address;
+ uint64_t Size;
+ char TypeChar;
+ StringRef Name;
+};
+}
- static bool CompareSymbolSize(const NMSymbol &a, const NMSymbol &b) {
- if (a.Size < b.Size)
- 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 compareSymbolAddress(const NMSymbol &A, const NMSymbol &B) {
+ if (A.Address < B.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;
+}
- static bool CompareSymbolName(const NMSymbol &a, const NMSymbol &b) {
- 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;
- }
+static bool compareSymbolSize(const NMSymbol &A, const NMSymbol &B) {
+ if (A.Size < B.Size)
+ 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;
+}
- StringRef CurrentFilename;
- typedef std::vector<NMSymbol> SymbolListT;
- SymbolListT SymbolList;
+static bool compareSymbolName(const NMSymbol &A, const NMSymbol &B) {
+ 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;
}
-static void SortAndPrintSymbolList() {
+static StringRef CurrentFilename;
+typedef std::vector<NMSymbol> SymbolListT;
+static SymbolListT SymbolList;
+
+static void sortAndPrintSymbolList() {
if (!NoSort) {
if (NumericSort)
- std::sort(SymbolList.begin(), SymbolList.end(), CompareSymbolAddress);
+ std::sort(SymbolList.begin(), SymbolList.end(), compareSymbolAddress);
else if (SizeSort)
- std::sort(SymbolList.begin(), SymbolList.end(), CompareSymbolSize);
+ std::sort(SymbolList.begin(), SymbolList.end(), compareSymbolSize);
else
- std::sort(SymbolList.begin(), SymbolList.end(), CompareSymbolName);
+ std::sort(SymbolList.begin(), SymbolList.end(), compareSymbolName);
}
if (OutputFormat == posix && MultipleFiles) {
@@ -210,47 +205,46 @@ static void SortAndPrintSymbolList() {
<< " Size Line Section\n";
}
- for (SymbolListT::iterator i = SymbolList.begin(),
- e = SymbolList.end(); i != e; ++i) {
- if ((i->TypeChar != 'U') && UndefinedOnly)
+ for (SymbolListT::iterator I = SymbolList.begin(), E = SymbolList.end();
+ I != E; ++I) {
+ if ((I->TypeChar != 'U') && UndefinedOnly)
continue;
- if ((i->TypeChar == 'U') && DefinedOnly)
+ if ((I->TypeChar == 'U') && DefinedOnly)
continue;
- if (SizeSort && !PrintAddress && i->Size == UnknownAddressOrSize)
+ if (SizeSort && !PrintAddress && I->Size == UnknownAddressOrSize)
continue;
char SymbolAddrStr[10] = "";
char SymbolSizeStr[10] = "";
- if (OutputFormat == sysv || i->Address == object::UnknownAddressOrSize)
+ if (OutputFormat == sysv || I->Address == UnknownAddressOrSize)
strcpy(SymbolAddrStr, " ");
if (OutputFormat == sysv)
strcpy(SymbolSizeStr, " ");
- if (i->Address != object::UnknownAddressOrSize)
- format("%08" PRIx64, i->Address).print(SymbolAddrStr,
- sizeof(SymbolAddrStr));
- if (i->Size != object::UnknownAddressOrSize)
- format("%08" PRIx64, i->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
+ if (I->Address != UnknownAddressOrSize)
+ format("%08" PRIx64, I->Address)
+ .print(SymbolAddrStr, sizeof(SymbolAddrStr));
+ if (I->Size != UnknownAddressOrSize)
+ format("%08" PRIx64, I->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
if (OutputFormat == posix) {
- outs() << i->Name << " " << i->TypeChar << " "
- << SymbolAddrStr << SymbolSizeStr << "\n";
+ outs() << I->Name << " " << I->TypeChar << " " << SymbolAddrStr
+ << SymbolSizeStr << "\n";
} else if (OutputFormat == bsd) {
if (PrintAddress)
outs() << SymbolAddrStr << ' ';
if (PrintSize) {
outs() << SymbolSizeStr;
- if (i->Size != object::UnknownAddressOrSize)
+ if (I->Size != UnknownAddressOrSize)
outs() << ' ';
}
- outs() << i->TypeChar << " " << i->Name << "\n";
+ outs() << I->TypeChar << " " << I->Name << "\n";
} else if (OutputFormat == sysv) {
- std::string PaddedName (i->Name);
- while (PaddedName.length () < 20)
+ std::string PaddedName(I->Name);
+ while (PaddedName.length() < 20)
PaddedName += " ";
- outs() << PaddedName << "|" << SymbolAddrStr << "| "
- << i->TypeChar
+ outs() << PaddedName << "|" << SymbolAddrStr << "| " << I->TypeChar
<< " | |" << SymbolSizeStr << "| |\n";
}
}
@@ -258,199 +252,103 @@ static void SortAndPrintSymbolList() {
SymbolList.clear();
}
-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) {
- // Private linkage and available_externally linkage don't exist in symtab.
- if (GV.hasPrivateLinkage() ||
- GV.hasLinkerPrivateLinkage() ||
- GV.hasLinkerPrivateWeakLinkage() ||
- GV.hasAvailableExternallyLinkage())
- return;
- char TypeChar = TypeCharForSymbol(GV);
- if (GV.hasLocalLinkage () && ExternalOnly)
- return;
-
- NMSymbol s;
- s.Address = object::UnknownAddressOrSize;
- s.Size = object::UnknownAddressOrSize;
- s.TypeChar = TypeChar;
- s.Name = GV.getName();
- SymbolList.push_back(s);
-}
-
-static void DumpSymbolNamesFromModule(Module *M) {
- CurrentFilename = M->getModuleIdentifier();
- std::for_each (M->begin(), M->end(), DumpSymbolNameForGlobalValue);
- std::for_each (M->global_begin(), M->global_end(),
- DumpSymbolNameForGlobalValue);
- if (!WithoutAliases)
- std::for_each (M->alias_begin(), M->alias_end(),
- DumpSymbolNameForGlobalValue);
-
- SortAndPrintSymbolList();
-}
-
template <class ELFT>
-error_code getSymbolNMTypeChar(ELFObjectFile<ELFT> &Obj, symbol_iterator I,
- char &Result) {
+static char getSymbolNMTypeChar(ELFObjectFile<ELFT> &Obj,
+ basic_symbol_iterator I) {
typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
+ // OK, this is ELF
+ symbol_iterator SymI(I);
+
DataRefImpl Symb = I->getRawDataRefImpl();
const Elf_Sym *ESym = Obj.getSymbol(Symb);
const ELFFile<ELFT> &EF = *Obj.getELFFile();
const Elf_Shdr *ESec = EF.getSection(ESym);
- char ret = '?';
-
if (ESec) {
switch (ESec->sh_type) {
case ELF::SHT_PROGBITS:
case ELF::SHT_DYNAMIC:
switch (ESec->sh_flags) {
case(ELF::SHF_ALLOC | ELF::SHF_EXECINSTR) :
- ret = 't';
- break;
+ return 't';
+ case(ELF::SHF_TLS | ELF::SHF_ALLOC | ELF::SHF_WRITE) :
case(ELF::SHF_ALLOC | ELF::SHF_WRITE) :
- ret = 'd';
- break;
+ return 'd';
case ELF::SHF_ALLOC:
case(ELF::SHF_ALLOC | ELF::SHF_MERGE) :
case(ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS) :
- ret = 'r';
- break;
+ return 'r';
}
break;
case ELF::SHT_NOBITS:
- ret = 'b';
+ return 'b';
}
}
- switch (EF.getSymbolTableIndex(ESym)) {
- case ELF::SHN_UNDEF:
- if (ret == '?')
- ret = 'U';
- break;
- case ELF::SHN_ABS:
- ret = 'a';
- break;
- case ELF::SHN_COMMON:
- ret = 'c';
- break;
- }
-
- switch (ESym->getBinding()) {
- case ELF::STB_GLOBAL:
- ret = ::toupper(ret);
- break;
- case ELF::STB_WEAK:
- if (EF.getSymbolTableIndex(ESym) == ELF::SHN_UNDEF)
- ret = 'w';
- else if (ESym->getType() == ELF::STT_OBJECT)
- ret = 'V';
- else
- ret = 'W';
- }
-
- if (ret == '?' && ESym->getType() == ELF::STT_SECTION) {
+ if (ESym->getType() == ELF::STT_SECTION) {
StringRef Name;
- error_code EC = I->getName(Name);
- if (EC)
- return EC;
- Result = StringSwitch<char>(Name)
- .StartsWith(".debug", 'N')
- .StartsWith(".note", 'n')
- .Default('?');
- return object_error::success;
+ if (error(SymI->getName(Name)))
+ return '?';
+ return StringSwitch<char>(Name)
+ .StartsWith(".debug", 'N')
+ .StartsWith(".note", 'n')
+ .Default('?');
}
- Result = ret;
- return object_error::success;
+ return '?';
}
-static error_code getSymbolNMTypeChar(COFFObjectFile &Obj, symbol_iterator I,
- char &Result) {
- const coff_symbol *symb = Obj.getCOFFSymbol(I);
- StringRef name;
- if (error_code ec = I->getName(name))
- return ec;
- char ret = StringSwitch<char>(name)
+static char getSymbolNMTypeChar(COFFObjectFile &Obj, symbol_iterator I) {
+ const coff_symbol *Symb = Obj.getCOFFSymbol(*I);
+ // OK, this is COFF.
+ symbol_iterator SymI(I);
+
+ StringRef Name;
+ if (error(SymI->getName(Name)))
+ return '?';
+
+ char Ret = StringSwitch<char>(Name)
.StartsWith(".debug", 'N')
.StartsWith(".sxdata", 'N')
.Default('?');
- if (ret != '?') {
- Result = ret;
- return object_error::success;
- }
+ if (Ret != '?')
+ return Ret;
uint32_t Characteristics = 0;
- if (symb->SectionNumber > 0) {
- section_iterator SecI = Obj.end_sections();
- if (error_code ec = I->getSection(SecI))
- return ec;
- const coff_section *Section = Obj.getCOFFSection(SecI);
+ if (!COFF::isReservedSectionNumber(Symb->SectionNumber)) {
+ section_iterator SecI = Obj.section_end();
+ if (error(SymI->getSection(SecI)))
+ return '?';
+ const coff_section *Section = Obj.getCOFFSection(*SecI);
Characteristics = Section->Characteristics;
}
- switch (symb->SectionNumber) {
- case COFF::IMAGE_SYM_UNDEFINED:
- // Check storage classes.
- if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL) {
- Result = 'w';
- return object_error::success; // Don't do ::toupper.
- } else if (symb->Value != 0) // Check for common symbols.
- ret = 'c';
- else
- ret = 'u';
- break;
- case COFF::IMAGE_SYM_ABSOLUTE:
- ret = 'a';
- break;
+ switch (Symb->SectionNumber) {
case COFF::IMAGE_SYM_DEBUG:
- ret = 'n';
- break;
+ return 'n';
default:
// Check section type.
if (Characteristics & COFF::IMAGE_SCN_CNT_CODE)
- ret = 't';
+ return 't';
else if (Characteristics & COFF::IMAGE_SCN_MEM_READ &&
~Characteristics & COFF::IMAGE_SCN_MEM_WRITE) // Read only.
- ret = 'r';
+ return 'r';
else if (Characteristics & COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
- ret = 'd';
+ return 'd';
else if (Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)
- ret = 'b';
+ return 'b';
else if (Characteristics & COFF::IMAGE_SCN_LNK_INFO)
- ret = 'i';
+ return 'i';
// Check for section symbol.
- else if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_STATIC &&
- symb->Value == 0)
- ret = 's';
+ else if (Symb->isSectionDefinition())
+ return 's';
}
- if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
- ret = ::toupper(static_cast<unsigned char>(ret));
-
- Result = ret;
- return object_error::success;
+ return '?';
}
static uint8_t getNType(MachOObjectFile &Obj, DataRefImpl Symb) {
@@ -462,205 +360,226 @@ static uint8_t getNType(MachOObjectFile &Obj, DataRefImpl Symb) {
return STE.n_type;
}
-static error_code getSymbolNMTypeChar(MachOObjectFile &Obj, symbol_iterator I,
- char &Res) {
+static char getSymbolNMTypeChar(MachOObjectFile &Obj, basic_symbol_iterator I) {
DataRefImpl Symb = I->getRawDataRefImpl();
uint8_t NType = getNType(Obj, Symb);
- char Char;
switch (NType & MachO::N_TYPE) {
- case MachO::N_UNDF:
- Char = 'u';
- break;
case MachO::N_ABS:
- Char = 's';
- break;
+ return 's';
case MachO::N_SECT: {
- section_iterator Sec = Obj.end_sections();
+ 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")
- Char = 't';
+ return 't';
else
- Char = 's';
- } break;
- default:
- Char = '?';
- break;
+ return 's';
+ }
}
- if (NType & (MachO::N_EXT | MachO::N_PEXT))
- Char = toupper(static_cast<unsigned char>(Char));
- Res = Char;
- return object_error::success;
+ return '?';
}
-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;
- }
+static char getSymbolNMTypeChar(const GlobalValue &GV) {
+ if (isa<Function>(GV))
+ 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.
+ if (isa<GlobalVariable>(GV))
+ return 'd';
+ const GlobalAlias *GA = cast<GlobalAlias>(&GV);
+ const GlobalValue *AliasedGV = GA->getAliasedGlobal();
+ return getSymbolNMTypeChar(*AliasedGV);
+}
- 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;
+static char getSymbolNMTypeChar(IRObjectFile &Obj, basic_symbol_iterator I) {
+ const GlobalValue &GV = Obj.getSymbolGV(I->getRawDataRefImpl());
+ return getSymbolNMTypeChar(GV);
+}
+
+template <class ELFT>
+static bool isObject(ELFObjectFile<ELFT> &Obj, symbol_iterator I) {
+ typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
+
+ DataRefImpl Symb = I->getRawDataRefImpl();
+ const Elf_Sym *ESym = Obj.getSymbol(Symb);
+
+ return ESym->getType() == ELF::STT_OBJECT;
+}
+
+static bool isObject(SymbolicFile *Obj, basic_symbol_iterator I) {
+ if (ELF32LEObjectFile *ELF = dyn_cast<ELF32LEObjectFile>(Obj))
+ return isObject(*ELF, I);
+ if (ELF64LEObjectFile *ELF = dyn_cast<ELF64LEObjectFile>(Obj))
+ return isObject(*ELF, I);
+ if (ELF32BEObjectFile *ELF = dyn_cast<ELF32BEObjectFile>(Obj))
+ return isObject(*ELF, I);
+ if (ELF64BEObjectFile *ELF = dyn_cast<ELF64BEObjectFile>(Obj))
+ return isObject(*ELF, I);
+ return false;
+}
+
+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;
}
- ELF64BEObjectFile *ELF = cast<ELF64BEObjectFile>(Obj);
- error(getSymbolNMTypeChar(*ELF, I, Res));
- return Res;
+
+ 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 if (ELF32LEObjectFile *ELF = dyn_cast<ELF32LEObjectFile>(Obj))
+ Ret = getSymbolNMTypeChar(*ELF, I);
+ else if (ELF64LEObjectFile *ELF = dyn_cast<ELF64LEObjectFile>(Obj))
+ Ret = getSymbolNMTypeChar(*ELF, I);
+ else if (ELF32BEObjectFile *ELF = dyn_cast<ELF32BEObjectFile>(Obj))
+ Ret = getSymbolNMTypeChar(*ELF, I);
+ else
+ Ret = getSymbolNMTypeChar(*cast<ELF64BEObjectFile>(Obj), I);
+
+ if (Symflags & object::SymbolRef::SF_Global)
+ Ret = toupper(Ret);
+
+ return Ret;
}
-static void DumpSymbolNamesFromObject(ObjectFile *obj) {
- error_code ec;
- symbol_iterator ibegin = obj->begin_symbols();
- symbol_iterator iend = obj->end_symbols();
+static void dumpSymbolNamesFromObject(SymbolicFile *Obj) {
+ basic_symbol_iterator IBegin = Obj->symbol_begin();
+ basic_symbol_iterator IEnd = Obj->symbol_end();
if (DynamicSyms) {
- ibegin = obj->begin_dynamic_symbols();
- iend = obj->end_dynamic_symbols();
+ if (!Obj->isELF()) {
+ error("File format has no dynamic symbol table", Obj->getFileName());
+ return;
+ }
+ std::pair<symbol_iterator, symbol_iterator> IDyn =
+ getELFDynamicSymbolIterators(Obj);
+ IBegin = IDyn.first;
+ IEnd = IDyn.second;
}
- 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))
+ std::string NameBuffer;
+ raw_string_ostream OS(NameBuffer);
+ for (basic_symbol_iterator I = IBegin; I != IEnd; ++I) {
+ uint32_t SymFlags = I->getFlags();
+ 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 (WithoutAliases) {
+ if (IRObjectFile *IR = dyn_cast<IRObjectFile>(Obj)) {
+ const GlobalValue &GV = IR->getSymbolGV(I->getRawDataRefImpl());
+ if(isa<GlobalAlias>(GV))
+ continue;
+ }
}
- 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);
+ NMSymbol S;
+ S.Size = UnknownAddressOrSize;
+ S.Address = UnknownAddressOrSize;
+ if ((PrintSize || SizeSort) && isa<ObjectFile>(Obj)) {
+ symbol_iterator SymI = I;
+ if (error(SymI->getSize(S.Size)))
+ break;
+ }
+ if (PrintAddress && isa<ObjectFile>(Obj))
+ if (error(symbol_iterator(I)->getAddress(S.Address)))
+ break;
+ S.TypeChar = getNMTypeChar(Obj, I);
+ if (error(I->printName(OS)))
+ break;
+ OS << '\0';
+ SymbolList.push_back(S);
}
- CurrentFilename = obj->getFileName();
- SortAndPrintSymbolList();
-}
-
-static void DumpSymbolNamesFromFile(std::string &Filename) {
- if (Filename != "-" && !sys::fs::exists(Filename)) {
- errs() << ToolName << ": '" << Filename << "': " << "No such file\n";
- return;
+ OS.flush();
+ const char *P = NameBuffer.c_str();
+ for (unsigned I = 0; I < SymbolList.size(); ++I) {
+ SymbolList[I].Name = P;
+ P += strlen(P) + 1;
}
- OwningPtr<MemoryBuffer> Buffer;
+ CurrentFilename = Obj->getFileName();
+ sortAndPrintSymbolList();
+}
+
+static void dumpSymbolNamesFromFile(std::string &Filename) {
+ std::unique_ptr<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;
- if (magic == sys::fs::file_magic::bitcode) {
- Module *Result = 0;
- Result = ParseBitcodeFile(Buffer.get(), Context, &ErrorMessage);
- if (Result) {
- DumpSymbolNamesFromModule(Result);
- delete Result;
- } else {
- error(ErrorMessage, Filename);
- return;
- }
- } 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) {
- object::Archive::symbol_iterator I = a->begin_symbols();
- object::Archive::symbol_iterator E = a->end_symbols();
- 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->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)))
+ ErrorOr<Binary *> BinaryOrErr = createBinary(Buffer.release(), &Context);
+ if (error(BinaryOrErr.getError(), Filename))
+ return;
+ std::unique_ptr<Binary> Bin(BinaryOrErr.get());
+
+ if (Archive *A = dyn_cast<Archive>(Bin.get())) {
+ 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) {
+ Archive::child_iterator C;
+ StringRef SymName;
+ StringRef FileName;
+ if (error(I->getMember(C)))
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);
+ if (error(I->getName(SymName)))
+ return;
+ if (error(C->getName(FileName)))
+ return;
+ outs() << SymName << " in " << FileName << "\n";
}
+ outs() << "\n";
}
}
- } else if (magic == sys::fs::file_magic::macho_universal_binary) {
- OwningPtr<Binary> Bin;
- if (error(object::createBinary(Buffer.take(), Bin), Filename))
- return;
- object::MachOUniversalBinary *UB =
- cast<object::MachOUniversalBinary>(Bin.get());
- for (object::MachOUniversalBinary::object_iterator
- I = UB->begin_objects(),
- E = UB->end_objects();
+ for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
+ I != E; ++I) {
+ std::unique_ptr<Binary> Child;
+ if (I->getAsBinary(Child, &Context))
+ continue;
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(Child.get())) {
+ outs() << O->getFileName() << ":\n";
+ dumpSymbolNamesFromObject(O);
+ }
+ }
+ return;
+ }
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(Bin.get())) {
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
I != E; ++I) {
- OwningPtr<ObjectFile> Obj;
+ std::unique_ptr<ObjectFile> Obj;
if (!I->getAsObjectFile(Obj)) {
outs() << Obj->getFileName() << ":\n";
- DumpSymbolNamesFromObject(Obj.get());
+ dumpSymbolNamesFromObject(Obj.get());
}
}
- } 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 {
- errs() << ToolName << ": " << Filename << ": "
- << "unrecognizable file type\n";
- HadError = true;
return;
}
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(Bin.get())) {
+ dumpSymbolNamesFromObject(O);
+ return;
+ }
+ error("unrecognizable file type", Filename);
+ return;
}
int main(int argc, char **argv) {
@@ -668,7 +587,7 @@ int main(int argc, char **argv) {
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
- llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
+ llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
cl::ParseCommandLineOptions(argc, argv, "llvm symbol table dumper\n");
// llvm-nm only reads binary files.
@@ -676,23 +595,30 @@ int main(int argc, char **argv) {
return 1;
ToolName = argv[0];
- if (BSDFormat) OutputFormat = bsd;
- if (POSIXFormat) OutputFormat = posix;
+ 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;
+ 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;
+ case 0:
+ InputFilenames.push_back("-");
+ case 1:
+ break;
+ default:
+ MultipleFiles = true;
}
std::for_each(InputFilenames.begin(), InputFilenames.end(),
- DumpSymbolNamesFromFile);
+ dumpSymbolNamesFromFile);
if (HadError)
return 1;