4 files changed, 86 insertions, 18 deletions

diff --git a/contrib/llvm/tools/llvm-objdump/COFFDump.cpp b/contrib/llvm/tools/llvm-objdump/COFFDump.cpp
index f286351..5d21b33 100644
--- a/contrib/llvm/tools/llvm-objdump/COFFDump.cpp
+++ b/contrib/llvm/tools/llvm-objdump/COFFDump.cpp
@@ -358,13 +358,30 @@ static void printExportTable(const COFFObjectFile *Obj) {
     uint32_t RVA;
     if (I->getExportRVA(RVA))
       return;
-    outs() << format("    % 4d %# 8x", Ordinal, RVA);
+    bool IsForwarder;
+    if (I->isForwarder(IsForwarder))
+      return;
+
+    if (IsForwarder) {
+      // Export table entries can be used to re-export symbols that
+      // this COFF file is imported from some DLLs. This is rare.
+      // In most cases IsForwarder is false.
+      outs() << format("    % 4d         ", Ordinal);
+    } else {
+      outs() << format("    % 4d %# 8x", Ordinal, RVA);
+    }
 
     StringRef Name;
     if (I->getSymbolName(Name))
       continue;
     if (!Name.empty())
       outs() << "  " << Name;
+    if (IsForwarder) {
+      StringRef S;
+      if (I->getForwardTo(S))
+        return;
+      outs() << " (forwarded to " << S << ")";
+    }
     outs() << "\n";
   }
 }
diff --git a/contrib/llvm/tools/llvm-objdump/MachODump.cpp b/contrib/llvm/tools/llvm-objdump/MachODump.cpp
index a2f3bc8..258c0b5 100644
--- a/contrib/llvm/tools/llvm-objdump/MachODump.cpp
+++ b/contrib/llvm/tools/llvm-objdump/MachODump.cpp
@@ -1196,7 +1196,11 @@ static void ProcessMachO(StringRef Filename, MachOObjectFile *MachOOF,
     PrintSymbolTable(MachOOF);
   if (UnwindInfo)
     printMachOUnwindInfo(MachOOF);
-  if (PrivateHeaders)
+  if (PrivateHeaders) {
+    printMachOFileHeader(MachOOF);
+    printMachOLoadCommands(MachOOF);
+  }
+  if (FirstPrivateHeader)
     printMachOFileHeader(MachOOF);
   if (ObjcMetaData)
     printObjcMetaData(MachOOF, !NonVerbose);
@@ -1477,10 +1481,8 @@ void llvm::ParseInputMachO(StringRef Filename) {
 
   // Attempt to open the binary.
   ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(Filename);
-  if (std::error_code EC = BinaryOrErr.getError()) {
-    errs() << "llvm-objdump: '" << Filename << "': " << EC.message() << ".\n";
-    return;
-  }
+  if (std::error_code EC = BinaryOrErr.getError())
+    report_error(Filename, EC);
   Binary &Bin = *BinaryOrErr.get().getBinary();
 
   if (Archive *A = dyn_cast<Archive>(&Bin)) {
@@ -1649,8 +1651,9 @@ void llvm::ParseInputMachO(StringRef Filename) {
     } else
       errs() << "llvm-objdump: '" << Filename << "': "
              << "Object is not a Mach-O file type.\n";
-  } else
-    report_error(Filename, object_error::invalid_file_type);
+    return;
+  }
+  llvm_unreachable("Input object can't be invalid at this point");
 }
 
 typedef std::pair<uint64_t, const char *> BindInfoEntry;
@@ -8646,31 +8649,40 @@ static void PrintLoadCommands(const MachOObjectFile *Obj, uint32_t filetype,
   }
 }
 
-static void getAndPrintMachHeader(const MachOObjectFile *Obj,
-                                  uint32_t &filetype, uint32_t &cputype,
-                                  bool verbose) {
+static void PrintMachHeader(const MachOObjectFile *Obj, bool verbose) {
   if (Obj->is64Bit()) {
     MachO::mach_header_64 H_64;
     H_64 = Obj->getHeader64();
     PrintMachHeader(H_64.magic, H_64.cputype, H_64.cpusubtype, H_64.filetype,
                     H_64.ncmds, H_64.sizeofcmds, H_64.flags, verbose);
-    filetype = H_64.filetype;
-    cputype = H_64.cputype;
   } else {
     MachO::mach_header H;
     H = Obj->getHeader();
     PrintMachHeader(H.magic, H.cputype, H.cpusubtype, H.filetype, H.ncmds,
                     H.sizeofcmds, H.flags, verbose);
-    filetype = H.filetype;
-    cputype = H.cputype;
   }
 }
 
 void llvm::printMachOFileHeader(const object::ObjectFile *Obj) {
   const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
+  PrintMachHeader(file, !NonVerbose);
+}
+
+void llvm::printMachOLoadCommands(const object::ObjectFile *Obj) {
+  const MachOObjectFile *file = dyn_cast<const MachOObjectFile>(Obj);
   uint32_t filetype = 0;
   uint32_t cputype = 0;
-  getAndPrintMachHeader(file, filetype, cputype, !NonVerbose);
+  if (file->is64Bit()) {
+    MachO::mach_header_64 H_64;
+    H_64 = file->getHeader64();
+    filetype = H_64.filetype;
+    cputype = H_64.cputype;
+  } else {
+    MachO::mach_header H;
+    H = file->getHeader();
+    filetype = H.filetype;
+    cputype = H.cputype;
+  }
   PrintLoadCommands(file, filetype, cputype, !NonVerbose);
 }
 
diff --git a/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp b/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp
index 22167c7..d5ae5de 100644
--- a/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/contrib/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -165,6 +165,11 @@ cl::opt<bool>
 llvm::PrivateHeaders("private-headers",
                      cl::desc("Display format specific file headers"));
 
+cl::opt<bool>
+llvm::FirstPrivateHeader("private-header",
+                         cl::desc("Display only the first format specific file "
+                                  "header"));
+
 static cl::alias
 PrivateHeadersShort("p", cl::desc("Alias for --private-headers"),
                     cl::aliasopt(PrivateHeaders));
@@ -482,6 +487,23 @@ static std::error_code getRelocationValueString(const ELFObjectFile<ELFT> *Obj,
   case ELF::EM_MIPS:
     res = Target;
     break;
+  case ELF::EM_WEBASSEMBLY:
+    switch (type) {
+    case ELF::R_WEBASSEMBLY_DATA: {
+      std::string fmtbuf;
+      raw_string_ostream fmt(fmtbuf);
+      fmt << Target << (addend < 0 ? "" : "+") << addend;
+      fmt.flush();
+      Result.append(fmtbuf.begin(), fmtbuf.end());
+      break;
+    }
+    case ELF::R_WEBASSEMBLY_FUNCTION:
+      res = Target;
+      break;
+    default:
+      res = "Unknown";
+    }
+    break;
   default:
     res = "Unknown";
   }
@@ -1478,7 +1500,19 @@ static void printFaultMaps(const ObjectFile *Obj) {
   outs() << FMP;
 }
 
-static void printPrivateFileHeader(const ObjectFile *o) {
+static void printPrivateFileHeaders(const ObjectFile *o) {
+  if (o->isELF())
+    printELFFileHeader(o);
+  else if (o->isCOFF())
+    printCOFFFileHeader(o);
+  else if (o->isMachO()) {
+    printMachOFileHeader(o);
+    printMachOLoadCommands(o);
+  } else
+    report_fatal_error("Invalid/Unsupported object file format");
+}
+
+static void printFirstPrivateFileHeader(const ObjectFile *o) {
   if (o->isELF())
     printELFFileHeader(o);
   else if (o->isCOFF())
@@ -1510,7 +1544,9 @@ static void DumpObject(const ObjectFile *o) {
   if (UnwindInfo)
     PrintUnwindInfo(o);
   if (PrivateHeaders)
-    printPrivateFileHeader(o);
+    printPrivateFileHeaders(o);
+  if (FirstPrivateHeader)
+    printFirstPrivateFileHeader(o);
   if (ExportsTrie)
     printExportsTrie(o);
   if (Rebase)
@@ -1601,6 +1637,7 @@ int main(int argc, char **argv) {
       && !SymbolTable
       && !UnwindInfo
       && !PrivateHeaders
+      && !FirstPrivateHeader
       && !ExportsTrie
       && !Rebase
       && !Bind
diff --git a/contrib/llvm/tools/llvm-objdump/llvm-objdump.h b/contrib/llvm/tools/llvm-objdump/llvm-objdump.h
index 6e8ad6b..60cabbc 100644
--- a/contrib/llvm/tools/llvm-objdump/llvm-objdump.h
+++ b/contrib/llvm/tools/llvm-objdump/llvm-objdump.h
@@ -31,6 +31,7 @@ extern cl::opt<bool> Disassemble;
 extern cl::opt<bool> DisassembleAll;
 extern cl::opt<bool> NoShowRawInsn;
 extern cl::opt<bool> PrivateHeaders;
+extern cl::opt<bool> FirstPrivateHeader;
 extern cl::opt<bool> ExportsTrie;
 extern cl::opt<bool> Rebase;
 extern cl::opt<bool> Bind;
@@ -70,6 +71,7 @@ void printELFFileHeader(const object::ObjectFile *o);
 void printCOFFFileHeader(const object::ObjectFile *o);
 void printCOFFSymbolTable(const object::COFFObjectFile *o);
 void printMachOFileHeader(const object::ObjectFile *o);
+void printMachOLoadCommands(const object::ObjectFile *o);
 void printExportsTrie(const object::ObjectFile *o);
 void printRebaseTable(const object::ObjectFile *o);
 void printBindTable(const object::ObjectFile *o);