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-rw-r--r--tools/llvm-nm/llvm-nm.cpp1421
1 files changed, 982 insertions, 439 deletions
diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 8449c293519b..15304c40b887 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"
@@ -34,175 +37,517 @@
#include "llvm/Support/Program.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
+#include "llvm/Support/TargetSelect.h"
#include <algorithm>
#include <cctype>
#include <cerrno>
#include <cstring>
+#include <system_error>
#include <vector>
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, darwin };
+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"),
+ clEnumVal(darwin, "Darwin -m 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::alias DefinedOnly2("U", cl::desc("Alias for --defined-only"),
+ cl::aliasopt(DefinedOnly));
+
+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> DarwinFormat("m", cl::desc("Alias for --format=darwin"));
+
+static cl::list<std::string>
+ ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
+ cl::ZeroOrMore);
+bool ArchAll = false;
+
+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> ReverseSort("reverse-sort", cl::desc("Sort in reverse order"));
+cl::alias ReverseSortr("r", cl::desc("Alias for --reverse-sort"),
+ cl::aliasopt(ReverseSort));
- cl::opt<bool> SizeSort("size-sort", cl::desc("Sort symbols by size"));
+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> WithoutAliases("without-aliases", cl::Hidden,
- cl::desc("Exclude aliases from output"));
+cl::opt<bool> SizeSort("size-sort", cl::desc("Sort symbols by size"));
- 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> WithoutAliases("without-aliases", cl::Hidden,
+ cl::desc("Exclude aliases from output"));
- bool MultipleFiles = false;
+cl::opt<bool> ArchiveMap("print-armap", cl::desc("Print the archive map"));
+cl::alias ArchiveMaps("M", cl::desc("Alias for --print-armap"),
+ cl::aliasopt(ArchiveMap));
- bool HadError = false;
+cl::opt<bool> JustSymbolName("just-symbol-name",
+ cl::desc("Print just the symbol's name"));
+cl::alias JustSymbolNames("j", cl::desc("Alias for --just-symbol-name"),
+ cl::aliasopt(JustSymbolName));
- std::string ToolName;
-}
+// FIXME: This option takes exactly two strings and should be allowed anywhere
+// on the command line. Such that "llvm-nm -s __TEXT __text foo.o" would work.
+// But that does not as the CommandLine Library does not have a way to make
+// this work. For now the "-s __TEXT __text" has to be last on the command
+// line.
+cl::list<std::string> SegSect("s", cl::Positional, cl::ZeroOrMore,
+ cl::desc("Dump only symbols from this segment "
+ "and section name, Mach-O only"));
+
+cl::opt<bool> FormatMachOasHex("x", cl::desc("Print symbol entry in hex, "
+ "Mach-O only"));
+
+bool PrintAddress = true;
+
+bool MultipleFiles = false;
+bool HadError = false;
-static void error(Twine message, Twine path = Twine()) {
- errs() << ToolName << ": " << path << ": " << message << ".\n";
+std::string ToolName;
}
-static bool error(error_code ec, Twine path = Twine()) {
- if (ec) {
- error(ec.message(), path);
- HadError = true;
+static void error(Twine Message, Twine Path = Twine()) {
+ HadError = true;
+ errs() << ToolName << ": " << Path << ": " << Message << ".\n";
+}
+
+static bool error(std::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;
- };
+struct NMSymbol {
+ uint64_t Address;
+ uint64_t Size;
+ char TypeChar;
+ StringRef Name;
+ DataRefImpl Symb;
+};
+}
- static bool CompareSymbolAddress(const NMSymbol &a, const NMSymbol &b) {
- if (a.Address < b.Address)
+static bool compareSymbolAddress(const NMSymbol &A, const NMSymbol &B) {
+ if (!ReverseSort) {
+ if (A.Address < B.Address)
return true;
- else if (a.Address == b.Address && a.Name < b.Name)
+ 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)
+ else if (A.Address == B.Address && A.Name == B.Name && A.Size < B.Size)
+ return true;
+ else
+ return false;
+ } else {
+ 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 CompareSymbolSize(const NMSymbol &a, const NMSymbol &b) {
- if (a.Size < b.Size)
+static bool compareSymbolSize(const NMSymbol &A, const NMSymbol &B) {
+ if (!ReverseSort) {
+ 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;
+ } else {
+ if (A.Size > B.Size)
return true;
- else if (a.Size == b.Size && a.Name < b.Name)
+ 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)
+ 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) {
- if (a.Name < b.Name)
+static bool compareSymbolName(const NMSymbol &A, const NMSymbol &B) {
+ if (!ReverseSort) {
+ if (A.Name < B.Name)
return true;
- else if (a.Name == b.Name && a.Size < b.Size)
+ 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)
+ else if (A.Name == B.Name && A.Size == B.Size && A.Address < B.Address)
return true;
else
return false;
+ } else {
+ 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 char isSymbolList64Bit(SymbolicFile *Obj) {
+ if (isa<IRObjectFile>(Obj))
+ return false;
+ else if (isa<COFFObjectFile>(Obj))
+ return false;
+ else if (MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(Obj))
+ return MachO->is64Bit();
+ else if (isa<ELF32LEObjectFile>(Obj))
+ return false;
+ else if (isa<ELF64LEObjectFile>(Obj))
+ return true;
+ else if (isa<ELF32BEObjectFile>(Obj))
+ return false;
+ else if (isa<ELF64BEObjectFile>(Obj))
+ return true;
+ else
+ return false;
+}
+
+static StringRef CurrentFilename;
+typedef std::vector<NMSymbol> SymbolListT;
+static SymbolListT SymbolList;
+
+// darwinPrintSymbol() is used to print a symbol from a Mach-O file when the
+// the OutputFormat is darwin or we are printing Mach-O symbols in hex. For
+// the darwin format it produces the same output as darwin's nm(1) -m output
+// and when printing Mach-O symbols in hex it produces the same output as
+// darwin's nm(1) -x format.
+static void darwinPrintSymbol(MachOObjectFile *MachO, SymbolListT::iterator I,
+ char *SymbolAddrStr, const char *printBlanks) {
+ MachO::mach_header H;
+ MachO::mach_header_64 H_64;
+ uint32_t Filetype, Flags;
+ MachO::nlist_64 STE_64;
+ MachO::nlist STE;
+ uint8_t NType;
+ uint8_t NSect;
+ uint16_t NDesc;
+ uint32_t NStrx;
+ uint64_t NValue;
+ if (MachO->is64Bit()) {
+ H_64 = MachO->MachOObjectFile::getHeader64();
+ Filetype = H_64.filetype;
+ Flags = H_64.flags;
+ STE_64 = MachO->getSymbol64TableEntry(I->Symb);
+ NType = STE_64.n_type;
+ NSect = STE_64.n_sect;
+ NDesc = STE_64.n_desc;
+ NStrx = STE_64.n_strx;
+ NValue = STE_64.n_value;
+ } else {
+ H = MachO->MachOObjectFile::getHeader();
+ Filetype = H.filetype;
+ Flags = H.flags;
+ STE = MachO->getSymbolTableEntry(I->Symb);
+ NType = STE.n_type;
+ NSect = STE.n_sect;
+ NDesc = STE.n_desc;
+ NStrx = STE.n_strx;
+ NValue = STE.n_value;
+ }
+
+ // If we are printing Mach-O symbols in hex do that and return.
+ if (FormatMachOasHex) {
+ char Str[18] = "";
+ const char *printFormat;
+ if (MachO->is64Bit())
+ printFormat = "%016" PRIx64;
+ else
+ printFormat = "%08" PRIx64;
+ format(printFormat, NValue).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%02x", NType).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%02x", NSect).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%04x", NDesc).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ format("%08x", NStrx).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ outs() << I->Name << "\n";
+ return;
+ }
+
+ if (PrintAddress) {
+ if ((NType & MachO::N_TYPE) == MachO::N_INDR)
+ strcpy(SymbolAddrStr, printBlanks);
+ outs() << SymbolAddrStr << ' ';
+ }
+
+ switch (NType & MachO::N_TYPE) {
+ case MachO::N_UNDF:
+ if (NValue != 0) {
+ outs() << "(common) ";
+ if (MachO::GET_COMM_ALIGN(NDesc) != 0)
+ outs() << "(alignment 2^" << (int)MachO::GET_COMM_ALIGN(NDesc) << ") ";
+ } else {
+ if ((NType & MachO::N_TYPE) == MachO::N_PBUD)
+ outs() << "(prebound ";
+ else
+ outs() << "(";
+ if ((NDesc & MachO::REFERENCE_TYPE) ==
+ MachO::REFERENCE_FLAG_UNDEFINED_LAZY)
+ outs() << "undefined [lazy bound]) ";
+ else if ((NDesc & MachO::REFERENCE_TYPE) ==
+ MachO::REFERENCE_FLAG_UNDEFINED_LAZY)
+ outs() << "undefined [private lazy bound]) ";
+ else if ((NDesc & MachO::REFERENCE_TYPE) ==
+ MachO::REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY)
+ outs() << "undefined [private]) ";
+ else
+ outs() << "undefined) ";
+ }
+ break;
+ case MachO::N_ABS:
+ outs() << "(absolute) ";
+ break;
+ case MachO::N_INDR:
+ outs() << "(indirect) ";
+ break;
+ case MachO::N_SECT: {
+ section_iterator Sec = MachO->section_end();
+ MachO->getSymbolSection(I->Symb, Sec);
+ DataRefImpl Ref = Sec->getRawDataRefImpl();
+ StringRef SectionName;
+ MachO->getSectionName(Ref, SectionName);
+ StringRef SegmentName = MachO->getSectionFinalSegmentName(Ref);
+ outs() << "(" << SegmentName << "," << SectionName << ") ";
+ break;
+ }
+ default:
+ outs() << "(?) ";
+ break;
+ }
+
+ if (NType & MachO::N_EXT) {
+ if (NDesc & MachO::REFERENCED_DYNAMICALLY)
+ outs() << "[referenced dynamically] ";
+ if (NType & MachO::N_PEXT) {
+ if ((NDesc & MachO::N_WEAK_DEF) == MachO::N_WEAK_DEF)
+ outs() << "weak private external ";
+ else
+ outs() << "private external ";
+ } else {
+ if ((NDesc & MachO::N_WEAK_REF) == MachO::N_WEAK_REF ||
+ (NDesc & MachO::N_WEAK_DEF) == MachO::N_WEAK_DEF) {
+ if ((NDesc & (MachO::N_WEAK_REF | MachO::N_WEAK_DEF)) ==
+ (MachO::N_WEAK_REF | MachO::N_WEAK_DEF))
+ outs() << "weak external automatically hidden ";
+ else
+ outs() << "weak external ";
+ } else
+ outs() << "external ";
+ }
+ } else {
+ if (NType & MachO::N_PEXT)
+ outs() << "non-external (was a private external) ";
+ else
+ outs() << "non-external ";
+ }
+
+ if (Filetype == MachO::MH_OBJECT &&
+ (NDesc & MachO::N_NO_DEAD_STRIP) == MachO::N_NO_DEAD_STRIP)
+ outs() << "[no dead strip] ";
+
+ if (Filetype == MachO::MH_OBJECT &&
+ ((NType & MachO::N_TYPE) != MachO::N_UNDF) &&
+ (NDesc & MachO::N_SYMBOL_RESOLVER) == MachO::N_SYMBOL_RESOLVER)
+ outs() << "[symbol resolver] ";
+
+ if (Filetype == MachO::MH_OBJECT &&
+ ((NType & MachO::N_TYPE) != MachO::N_UNDF) &&
+ (NDesc & MachO::N_ALT_ENTRY) == MachO::N_ALT_ENTRY)
+ outs() << "[alt entry] ";
+
+ if ((NDesc & MachO::N_ARM_THUMB_DEF) == MachO::N_ARM_THUMB_DEF)
+ outs() << "[Thumb] ";
+
+ if ((NType & MachO::N_TYPE) == MachO::N_INDR) {
+ outs() << I->Name << " (for ";
+ StringRef IndirectName;
+ if (MachO->getIndirectName(I->Symb, IndirectName))
+ outs() << "?)";
+ else
+ outs() << IndirectName << ")";
+ } else
+ outs() << I->Name;
+
+ if ((Flags & MachO::MH_TWOLEVEL) == MachO::MH_TWOLEVEL &&
+ (((NType & MachO::N_TYPE) == MachO::N_UNDF && NValue == 0) ||
+ (NType & MachO::N_TYPE) == MachO::N_PBUD)) {
+ uint32_t LibraryOrdinal = MachO::GET_LIBRARY_ORDINAL(NDesc);
+ if (LibraryOrdinal != 0) {
+ if (LibraryOrdinal == MachO::EXECUTABLE_ORDINAL)
+ outs() << " (from executable)";
+ else if (LibraryOrdinal == MachO::DYNAMIC_LOOKUP_ORDINAL)
+ outs() << " (dynamically looked up)";
+ else {
+ StringRef LibraryName;
+ if (MachO->getLibraryShortNameByIndex(LibraryOrdinal - 1, LibraryName))
+ outs() << " (from bad library ordinal " << LibraryOrdinal << ")";
+ else
+ outs() << " (from " << LibraryName << ")";
+ }
+ }
}
- StringRef CurrentFilename;
- typedef std::vector<NMSymbol> SymbolListT;
- SymbolListT SymbolList;
+ outs() << "\n";
+}
+
+// Table that maps Darwin's Mach-O stab constants to strings to allow printing.
+struct DarwinStabName {
+ uint8_t NType;
+ const char *Name;
+};
+static const struct DarwinStabName DarwinStabNames[] = {
+ {MachO::N_GSYM, "GSYM"},
+ {MachO::N_FNAME, "FNAME"},
+ {MachO::N_FUN, "FUN"},
+ {MachO::N_STSYM, "STSYM"},
+ {MachO::N_LCSYM, "LCSYM"},
+ {MachO::N_BNSYM, "BNSYM"},
+ {MachO::N_PC, "PC"},
+ {MachO::N_AST, "AST"},
+ {MachO::N_OPT, "OPT"},
+ {MachO::N_RSYM, "RSYM"},
+ {MachO::N_SLINE, "SLINE"},
+ {MachO::N_ENSYM, "ENSYM"},
+ {MachO::N_SSYM, "SSYM"},
+ {MachO::N_SO, "SO"},
+ {MachO::N_OSO, "OSO"},
+ {MachO::N_LSYM, "LSYM"},
+ {MachO::N_BINCL, "BINCL"},
+ {MachO::N_SOL, "SOL"},
+ {MachO::N_PARAMS, "PARAM"},
+ {MachO::N_VERSION, "VERS"},
+ {MachO::N_OLEVEL, "OLEV"},
+ {MachO::N_PSYM, "PSYM"},
+ {MachO::N_EINCL, "EINCL"},
+ {MachO::N_ENTRY, "ENTRY"},
+ {MachO::N_LBRAC, "LBRAC"},
+ {MachO::N_EXCL, "EXCL"},
+ {MachO::N_RBRAC, "RBRAC"},
+ {MachO::N_BCOMM, "BCOMM"},
+ {MachO::N_ECOMM, "ECOMM"},
+ {MachO::N_ECOML, "ECOML"},
+ {MachO::N_LENG, "LENG"},
+ {0, 0}};
+static const char *getDarwinStabString(uint8_t NType) {
+ for (unsigned i = 0; DarwinStabNames[i].Name; i++) {
+ if (DarwinStabNames[i].NType == NType)
+ return DarwinStabNames[i].Name;
+ }
+ return 0;
}
-static void SortAndPrintSymbolList() {
+// darwinPrintStab() prints the n_sect, n_desc along with a symbolic name of
+// a stab n_type value in a Mach-O file.
+static void darwinPrintStab(MachOObjectFile *MachO, SymbolListT::iterator I) {
+ MachO::nlist_64 STE_64;
+ MachO::nlist STE;
+ uint8_t NType;
+ uint8_t NSect;
+ uint16_t NDesc;
+ if (MachO->is64Bit()) {
+ STE_64 = MachO->getSymbol64TableEntry(I->Symb);
+ NType = STE_64.n_type;
+ NSect = STE_64.n_sect;
+ NDesc = STE_64.n_desc;
+ } else {
+ STE = MachO->getSymbolTableEntry(I->Symb);
+ NType = STE.n_type;
+ NSect = STE.n_sect;
+ NDesc = STE.n_desc;
+ }
+
+ char Str[18] = "";
+ format("%02x", NSect).print(Str, sizeof(Str));
+ outs() << ' ' << Str << ' ';
+ format("%04x", NDesc).print(Str, sizeof(Str));
+ outs() << Str << ' ';
+ if (const char *stabString = getDarwinStabString(NType))
+ format("%5.5s", stabString).print(Str, sizeof(Str));
+ else
+ format(" %02x", NType).print(Str, sizeof(Str));
+ outs() << Str;
+}
+
+static void sortAndPrintSymbolList(SymbolicFile *Obj, bool printName) {
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) {
+ if (OutputFormat == posix && MultipleFiles && printName) {
outs() << '\n' << CurrentFilename << ":\n";
- } else if (OutputFormat == bsd && MultipleFiles) {
+ } else if (OutputFormat == bsd && MultipleFiles && printName) {
outs() << "\n" << CurrentFilename << ":\n";
} else if (OutputFormat == sysv) {
outs() << "\n\nSymbols from " << CurrentFilename << ":\n\n"
@@ -210,47 +555,70 @@ static void SortAndPrintSymbolList() {
<< " Size Line Section\n";
}
- for (SymbolListT::iterator i = SymbolList.begin(),
- e = SymbolList.end(); i != e; ++i) {
- if ((i->TypeChar != 'U') && UndefinedOnly)
+ const char *printBlanks, *printFormat;
+ if (isSymbolList64Bit(Obj)) {
+ printBlanks = " ";
+ printFormat = "%016" PRIx64;
+ } else {
+ printBlanks = " ";
+ printFormat = "%08" PRIx64;
+ }
+
+ 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;
+ if (JustSymbolName) {
+ outs() << I->Name << "\n";
+ continue;
+ }
- char SymbolAddrStr[10] = "";
- char SymbolSizeStr[10] = "";
+ char SymbolAddrStr[18] = "";
+ char SymbolSizeStr[18] = "";
- if (OutputFormat == sysv || i->Address == object::UnknownAddressOrSize)
- strcpy(SymbolAddrStr, " ");
+ if (OutputFormat == sysv || I->Address == UnknownAddressOrSize)
+ strcpy(SymbolAddrStr, printBlanks);
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 (OutputFormat == posix) {
- outs() << i->Name << " " << i->TypeChar << " "
- << SymbolAddrStr << SymbolSizeStr << "\n";
- } else if (OutputFormat == bsd) {
+ strcpy(SymbolSizeStr, printBlanks);
+
+ if (I->Address != UnknownAddressOrSize)
+ format(printFormat, I->Address)
+ .print(SymbolAddrStr, sizeof(SymbolAddrStr));
+ if (I->Size != UnknownAddressOrSize)
+ format(printFormat, I->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
+
+ // If OutputFormat is darwin or we are printing Mach-O symbols in hex and
+ // we have a MachOObjectFile, call darwinPrintSymbol to print as darwin's
+ // nm(1) -m output or hex, else if OutputFormat is darwin or we are
+ // printing Mach-O symbols in hex and not a Mach-O object fall back to
+ // OutputFormat bsd (see below).
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(Obj);
+ if ((OutputFormat == darwin || FormatMachOasHex) && MachO) {
+ darwinPrintSymbol(MachO, I, SymbolAddrStr, printBlanks);
+ } else if (OutputFormat == posix) {
+ outs() << I->Name << " " << I->TypeChar << " " << SymbolAddrStr
+ << SymbolSizeStr << "\n";
+ } else if (OutputFormat == bsd || (OutputFormat == darwin && !MachO)) {
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;
+ if (I->TypeChar == '-' && MachO)
+ darwinPrintStab(MachO, I);
+ outs() << " " << 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 +626,103 @@ 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;
- case(ELF::SHF_ALLOC | ELF::SHF_WRITE) :
- ret = 'd';
- break;
+ case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
+ return 't';
+ case (ELF::SHF_TLS | ELF::SHF_ALLOC | ELF::SHF_WRITE):
+ case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
+ 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;
+ case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
+ case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
+ 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 +734,448 @@ 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;
+ if (NType & MachO::N_STAB)
+ return '-';
+
switch (NType & MachO::N_TYPE) {
- case MachO::N_UNDF:
- Char = 'u';
- break;
case MachO::N_ABS:
- Char = 's';
- break;
+ return 's';
+ case MachO::N_INDR:
+ return 'i';
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 if (SegmentName == "__DATA" && SectionName == "__data")
+ return 'd';
+ else if (SegmentName == "__DATA" && SectionName == "__bss")
+ return 'b';
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 (GV.getType()->getElementType()->isFunctionTy())
+ 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.
+ return 'd';
+}
+
+static char getSymbolNMTypeChar(IRObjectFile &Obj, basic_symbol_iterator I) {
+ const GlobalValue *GV = Obj.getSymbolGV(I->getRawDataRefImpl());
+ if (!GV)
+ return 't';
+ return getSymbolNMTypeChar(*GV);
+}
+
+template <class ELFT>
+static bool isObject(ELFObjectFile<ELFT> &Obj, symbol_iterator I) {
+ typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
- if (ELF32LEObjectFile *ELF = dyn_cast<ELF32LEObjectFile>(Obj)) {
- error(getSymbolNMTypeChar(*ELF, I, Res));
- return Res;
+ 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;
}
- if (ELF64LEObjectFile *ELF = dyn_cast<ELF64LEObjectFile>(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;
+}
+
+// getNsectForSegSect() is used to implement the Mach-O "-s segname sectname"
+// option to dump only those symbols from that section in a Mach-O file.
+// It is called once for each Mach-O file from dumpSymbolNamesFromObject()
+// to get the section number for that named section from the command line
+// arguments. It returns the section number for that section in the Mach-O
+// file or zero it is not present.
+static unsigned getNsectForSegSect(MachOObjectFile *Obj) {
+ unsigned Nsect = 1;
+ for (section_iterator I = Obj->section_begin(), E = Obj->section_end();
+ I != E; ++I) {
+ DataRefImpl Ref = I->getRawDataRefImpl();
+ StringRef SectionName;
+ Obj->getSectionName(Ref, SectionName);
+ StringRef SegmentName = Obj->getSectionFinalSegmentName(Ref);
+ if (SegmentName == SegSect[0] && SectionName == SegSect[1])
+ return Nsect;
+ Nsect++;
}
- if (ELF32BEObjectFile *ELF = dyn_cast<ELF32BEObjectFile>(Obj)) {
- error(getSymbolNMTypeChar(*ELF, I, Res));
- return Res;
+ return 0;
+}
+
+// getNsectInMachO() is used to implement the Mach-O "-s segname sectname"
+// option to dump only those symbols from that section in a Mach-O file.
+// It is called once for each symbol in a Mach-O file from
+// dumpSymbolNamesFromObject() and returns the section number for that symbol
+// if it is in a section, else it returns 0.
+static unsigned getNsectInMachO(MachOObjectFile &Obj, basic_symbol_iterator I) {
+ DataRefImpl Symb = I->getRawDataRefImpl();
+ if (Obj.is64Bit()) {
+ MachO::nlist_64 STE = Obj.getSymbol64TableEntry(Symb);
+ if ((STE.n_type & MachO::N_TYPE) == MachO::N_SECT)
+ return STE.n_sect;
+ return 0;
}
- ELF64BEObjectFile *ELF = cast<ELF64BEObjectFile>(Obj);
- error(getSymbolNMTypeChar(*ELF, I, Res));
- return Res;
+ MachO::nlist STE = Obj.getSymbolTableEntry(Symb);
+ if ((STE.n_type & MachO::N_TYPE) == MachO::N_SECT)
+ return STE.n_sect;
+ return 0;
}
-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, bool printName) {
+ 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();
- }
- 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))
+ 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;
+ }
+ std::string NameBuffer;
+ raw_string_ostream OS(NameBuffer);
+ // If a "-s segname sectname" option was specified and this is a Mach-O
+ // file get the section number for that section in this object file.
+ unsigned int Nsect = 0;
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(Obj);
+ if (SegSect.size() != 0 && MachO) {
+ Nsect = getNsectForSegSect(MachO);
+ // If this section is not in the object file no symbols are printed.
+ if (Nsect == 0)
+ return;
+ }
+ 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 (GV && 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);
+ // If a "-s segname sectname" option was specified and this is a Mach-O
+ // file and this section appears in this file, Nsect will be non-zero then
+ // see if this symbol is a symbol from that section and if not skip it.
+ if (Nsect && Nsect != getNsectInMachO(*MachO, I))
+ continue;
+ 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';
+ S.Symb = I->getRawDataRefImpl();
+ SymbolList.push_back(S);
+ }
+
+ OS.flush();
+ const char *P = NameBuffer.c_str();
+ for (unsigned I = 0; I < SymbolList.size(); ++I) {
+ SymbolList[I].Name = P;
+ P += strlen(P) + 1;
}
- CurrentFilename = obj->getFileName();
- SortAndPrintSymbolList();
+ CurrentFilename = Obj->getFileName();
+ sortAndPrintSymbolList(Obj, printName);
}
-static void DumpSymbolNamesFromFile(std::string &Filename) {
- if (Filename != "-" && !sys::fs::exists(Filename)) {
- errs() << ToolName << ": '" << Filename << "': " << "No such file\n";
- return;
+// checkMachOAndArchFlags() checks to see if the SymbolicFile is a Mach-O file
+// and if it is and there is a list of architecture flags is specified then
+// check to make sure this Mach-O file is one of those architectures or all
+// architectures was specificed. If not then an error is generated and this
+// routine returns false. Else it returns true.
+static bool checkMachOAndArchFlags(SymbolicFile *O, std::string &Filename) {
+ if (isa<MachOObjectFile>(O) && !ArchAll && ArchFlags.size() != 0) {
+ MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(O);
+ bool ArchFound = false;
+ MachO::mach_header H;
+ MachO::mach_header_64 H_64;
+ Triple T;
+ if (MachO->is64Bit()) {
+ H_64 = MachO->MachOObjectFile::getHeader64();
+ T = MachOObjectFile::getArch(H_64.cputype, H_64.cpusubtype);
+ } else {
+ H = MachO->MachOObjectFile::getHeader();
+ T = MachOObjectFile::getArch(H.cputype, H.cpusubtype);
+ }
+ unsigned i;
+ for (i = 0; i < ArchFlags.size(); ++i) {
+ if (ArchFlags[i] == T.getArchName())
+ ArchFound = true;
+ break;
+ }
+ if (!ArchFound) {
+ error(ArchFlags[i],
+ "file: " + Filename + " does not contain architecture");
+ return false;
+ }
}
+ return true;
+}
- OwningPtr<MemoryBuffer> Buffer;
- if (error(MemoryBuffer::getFileOrSTDIN(Filename, Buffer), Filename))
+static void dumpSymbolNamesFromFile(std::string &Filename) {
+ ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
+ MemoryBuffer::getFileOrSTDIN(Filename);
+ if (error(BufferOrErr.getError(), 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;
+ ErrorOr<Binary *> BinaryOrErr =
+ createBinary(std::move(*BufferOrErr), &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) {
+ ErrorOr<Archive::child_iterator> C = I->getMember();
+ if (error(C.getError()))
+ return;
+ ErrorOr<StringRef> FileNameOrErr = C.get()->getName();
+ if (error(FileNameOrErr.getError()))
+ return;
+ StringRef SymName = I->getName();
+ outs() << SymName << " in " << FileNameOrErr.get() << "\n";
+ }
+ outs() << "\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) {
- 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";
+ for (Archive::child_iterator I = A->child_begin(), E = A->child_end();
+ I != E; ++I) {
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr = I->getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ if (!checkMachOAndArchFlags(O, Filename))
+ return;
+ outs() << "\n";
+ if (isa<MachOObjectFile>(O)) {
+ outs() << Filename << "(" << O->getFileName() << ")";
+ } else
+ outs() << O->getFileName();
+ outs() << ":\n";
+ dumpSymbolNamesFromObject(O, false);
+ }
+ }
+ return;
+ }
+ if (MachOUniversalBinary *UB = dyn_cast<MachOUniversalBinary>(Bin.get())) {
+ // If we have a list of architecture flags specified dump only those.
+ if (!ArchAll && ArchFlags.size() != 0) {
+ // Look for a slice in the universal binary that matches each ArchFlag.
+ bool ArchFound;
+ for (unsigned i = 0; i < ArchFlags.size(); ++i) {
+ ArchFound = false;
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ if (ArchFlags[i] == I->getArchTypeName()) {
+ ArchFound = true;
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
+ I->getAsObjectFile();
+ std::unique_ptr<Archive> A;
+ if (ObjOrErr) {
+ std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
+ if (ArchFlags.size() > 1) {
+ outs() << "\n" << Obj->getFileName() << " (for architecture "
+ << I->getArchTypeName() << ")"
+ << ":\n";
+ }
+ dumpSymbolNamesFromObject(Obj.get(), false);
+ } else if (!I->getAsArchive(A)) {
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
+ AI->getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O =
+ dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ outs() << "\n" << A->getFileName();
+ outs() << "(" << O->getFileName() << ")";
+ if (ArchFlags.size() > 1) {
+ outs() << " (for architecture " << I->getArchTypeName()
+ << ")";
+ }
+ outs() << ":\n";
+ dumpSymbolNamesFromObject(O, false);
+ }
+ }
+ }
}
- outs() << "\n";
+ }
+ if (!ArchFound) {
+ error(ArchFlags[i],
+ "file: " + Filename + " does not contain architecture");
+ return;
}
}
-
- 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;
+ return;
+ }
+ // No architecture flags were specified so if this contains a slice that
+ // matches the host architecture dump only that.
+ if (!ArchAll) {
+ StringRef HostArchName = MachOObjectFile::getHostArch().getArchName();
+ for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
+ E = UB->end_objects();
+ I != E; ++I) {
+ if (HostArchName == I->getArchTypeName()) {
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
+ std::unique_ptr<Archive> A;
+ if (ObjOrErr) {
+ std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
+ dumpSymbolNamesFromObject(Obj.get(), false);
+ } else if (!I->getAsArchive(A)) {
+ for (Archive::child_iterator AI = A->child_begin(),
+ AE = A->child_end();
+ AI != AE; ++AI) {
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
+ AI->getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O =
+ dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ outs() << "\n" << A->getFileName() << "(" << O->getFileName()
+ << ")"
+ << ":\n";
+ dumpSymbolNamesFromObject(O, false);
+ }
+ }
}
- continue;
- }
- if (object::ObjectFile *o = dyn_cast<ObjectFile>(child.get())) {
- outs() << o->getFileName() << ":\n";
- DumpSymbolNamesFromObject(o);
+ return;
}
}
}
- } 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();
+ // Either all architectures have been specified or none have been specified
+ // and this does not contain the host architecture so dump all the slices.
+ bool moreThanOneArch = UB->getNumberOfObjects() > 1;
+ for (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());
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = I->getAsObjectFile();
+ std::unique_ptr<Archive> A;
+ if (ObjOrErr) {
+ std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
+ if (moreThanOneArch)
+ outs() << "\n";
+ outs() << Obj->getFileName();
+ if (isa<MachOObjectFile>(Obj.get()) && moreThanOneArch)
+ outs() << " (for architecture " << I->getArchTypeName() << ")";
+ outs() << ":\n";
+ dumpSymbolNamesFromObject(Obj.get(), false);
+ } else if (!I->getAsArchive(A)) {
+ for (Archive::child_iterator AI = A->child_begin(), AE = A->child_end();
+ AI != AE; ++AI) {
+ ErrorOr<std::unique_ptr<Binary>> ChildOrErr =
+ AI->getAsBinary(&Context);
+ if (ChildOrErr.getError())
+ continue;
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(&*ChildOrErr.get())) {
+ outs() << "\n" << A->getFileName();
+ if (isa<MachOObjectFile>(O)) {
+ outs() << "(" << O->getFileName() << ")";
+ if (moreThanOneArch)
+ outs() << " (for architecture " << I->getArchTypeName() << ")";
+ } else
+ outs() << ":" << O->getFileName();
+ outs() << ":\n";
+ dumpSymbolNamesFromObject(O, false);
+ }
+ }
}
}
- } else if (magic.is_object()) {
- OwningPtr<Binary> obj;
- if (error(object::createBinary(Buffer.take(), obj), Filename))
+ return;
+ }
+ if (SymbolicFile *O = dyn_cast<SymbolicFile>(Bin.get())) {
+ if (!checkMachOAndArchFlags(O, Filename))
return;
- if (object::ObjectFile *o = dyn_cast<ObjectFile>(obj.get()))
- DumpSymbolNamesFromObject(o);
- } else {
- errs() << ToolName << ": " << Filename << ": "
- << "unrecognizable file type\n";
- HadError = true;
+ dumpSymbolNamesFromObject(O, true);
return;
}
+ error("unrecognizable file type", Filename);
+ return;
}
int main(int argc, char **argv) {
@@ -668,31 +1183,59 @@ 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.
if (error(sys::ChangeStdinToBinary()))
return 1;
+ llvm::InitializeAllTargetInfos();
+ llvm::InitializeAllTargetMCs();
+ llvm::InitializeAllAsmParsers();
+
ToolName = argv[0];
- if (BSDFormat) OutputFormat = bsd;
- if (POSIXFormat) OutputFormat = posix;
+ if (BSDFormat)
+ OutputFormat = bsd;
+ if (POSIXFormat)
+ OutputFormat = posix;
+ if (DarwinFormat)
+ OutputFormat = darwin;
// 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("a.out");
+ case 1:
+ break;
+ default:
+ MultipleFiles = true;
+ }
+
+ for (unsigned i = 0; i < ArchFlags.size(); ++i) {
+ if (ArchFlags[i] == "all") {
+ ArchAll = true;
+ } else {
+ Triple T = MachOObjectFile::getArch(ArchFlags[i]);
+ if (T.getArch() == Triple::UnknownArch)
+ error("Unknown architecture named '" + ArchFlags[i] + "'",
+ "for the -arch option");
+ }
}
+ if (SegSect.size() != 0 && SegSect.size() != 2)
+ error("bad number of arguments (must be two arguments)",
+ "for the -s option");
+
std::for_each(InputFilenames.begin(), InputFilenames.end(),
- DumpSymbolNamesFromFile);
+ dumpSymbolNamesFromFile);
if (HadError)
return 1;
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-07 20:33:27 +0000