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      1 //===------ utils/obj2yaml.cpp - obj2yaml conversion tool -------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #include "Error.h"
     11 #include "obj2yaml.h"
     12 #include "llvm/Object/Archive.h"
     13 #include "llvm/Object/COFF.h"
     14 #include "llvm/Support/CommandLine.h"
     15 #include "llvm/Support/ManagedStatic.h"
     16 #include "llvm/Support/PrettyStackTrace.h"
     17 #include "llvm/Support/Signals.h"
     18 
     19 using namespace llvm;
     20 using namespace llvm::object;
     21 
     22 static std::error_code dumpObject(const ObjectFile &Obj) {
     23   if (Obj.isCOFF())
     24     return coff2yaml(outs(), cast<COFFObjectFile>(Obj));
     25   if (Obj.isELF())
     26     return elf2yaml(outs(), Obj);
     27 
     28   return obj2yaml_error::unsupported_obj_file_format;
     29 }
     30 
     31 static std::error_code dumpInput(StringRef File) {
     32   if (File != "-" && !sys::fs::exists(File))
     33     return obj2yaml_error::file_not_found;
     34 
     35   ErrorOr<Binary *> BinaryOrErr = createBinary(File);
     36   if (std::error_code EC = BinaryOrErr.getError())
     37     return EC;
     38 
     39   std::unique_ptr<Binary> Binary(BinaryOrErr.get());
     40   // TODO: If this is an archive, then burst it and dump each entry
     41   if (ObjectFile *Obj = dyn_cast<ObjectFile>(Binary.get()))
     42     return dumpObject(*Obj);
     43 
     44   return obj2yaml_error::unrecognized_file_format;
     45 }
     46 
     47 cl::opt<std::string> InputFilename(cl::Positional, cl::desc("<input file>"),
     48                                    cl::init("-"));
     49 
     50 int main(int argc, char *argv[]) {
     51   cl::ParseCommandLineOptions(argc, argv);
     52   sys::PrintStackTraceOnErrorSignal();
     53   PrettyStackTraceProgram X(argc, argv);
     54   llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
     55 
     56   if (std::error_code EC = dumpInput(InputFilename)) {
     57     errs() << "Error: '" << EC.message() << "'\n";
     58     return 1;
     59   }
     60 
     61   return 0;
     62 }
     63