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   if (Obj.isMachO() || Obj.isMachOUniversalBinary())
28     return macho2yaml(outs(), Obj);
29 
30   return obj2yaml_error::unsupported_obj_file_format;
31 }
32 
33 static std::error_code dumpInput(StringRef File) {
34   Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
35   if (!BinaryOrErr)
36     return errorToErrorCode(BinaryOrErr.takeError());
37 
38   Binary &Binary = *BinaryOrErr.get().getBinary();
39   // TODO: If this is an archive, then burst it and dump each entry
40   if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
41     return dumpObject(*Obj);
42 
43   return obj2yaml_error::unrecognized_file_format;
44 }
45 
46 cl::opt<std::string> InputFilename(cl::Positional, cl::desc("<input file>"),
47                                    cl::init("-"));
48 
49 int main(int argc, char *argv[]) {
50   cl::ParseCommandLineOptions(argc, argv);
51   sys::PrintStackTraceOnErrorSignal();
52   PrettyStackTraceProgram X(argc, argv);
53   llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
54 
55   if (std::error_code EC = dumpInput(InputFilename)) {
56     errs() << "Error: '" << EC.message() << "'\n";
57     return 1;
58   }
59 
60   return 0;
61 }
62