Pass a std::unique_ptr& to the create??? methods is lib/Object.
[oota-llvm.git] / tools / llvm-dwarfdump / llvm-dwarfdump.cpp
1 //===-- llvm-dwarfdump.cpp - Debug info dumping utility for llvm ----------===//
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 // This program is a utility that works like "dwarfdump".
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm/ADT/STLExtras.h"
15 #include "llvm/ADT/Triple.h"
16 #include "llvm/DebugInfo/DIContext.h"
17 #include "llvm/Object/ObjectFile.h"
18 #include "llvm/Object/RelocVisitor.h"
19 #include "llvm/Support/CommandLine.h"
20 #include "llvm/Support/Debug.h"
21 #include "llvm/Support/Format.h"
22 #include "llvm/Support/ManagedStatic.h"
23 #include "llvm/Support/MemoryBuffer.h"
24 #include "llvm/Support/MemoryObject.h"
25 #include "llvm/Support/PrettyStackTrace.h"
26 #include "llvm/Support/Signals.h"
27 #include "llvm/Support/raw_ostream.h"
28 #include <algorithm>
29 #include <cstring>
30 #include <list>
31 #include <string>
32 #include <system_error>
33
34 using namespace llvm;
35 using namespace object;
36
37 static cl::list<std::string>
38 InputFilenames(cl::Positional, cl::desc("<input object files>"),
39                cl::ZeroOrMore);
40
41 static cl::opt<DIDumpType>
42 DumpType("debug-dump", cl::init(DIDT_All),
43   cl::desc("Dump of debug sections:"),
44   cl::values(
45         clEnumValN(DIDT_All, "all", "Dump all debug sections"),
46         clEnumValN(DIDT_Abbrev, "abbrev", ".debug_abbrev"),
47         clEnumValN(DIDT_AbbrevDwo, "abbrev.dwo", ".debug_abbrev.dwo"),
48         clEnumValN(DIDT_Aranges, "aranges", ".debug_aranges"),
49         clEnumValN(DIDT_Info, "info", ".debug_info"),
50         clEnumValN(DIDT_InfoDwo, "info.dwo", ".debug_info.dwo"),
51         clEnumValN(DIDT_Types, "types", ".debug_types"),
52         clEnumValN(DIDT_TypesDwo, "types.dwo", ".debug_types.dwo"),
53         clEnumValN(DIDT_Line, "line", ".debug_line"),
54         clEnumValN(DIDT_LineDwo, "line.dwo", ".debug_line.dwo"),
55         clEnumValN(DIDT_Loc, "loc", ".debug_loc"),
56         clEnumValN(DIDT_LocDwo, "loc.dwo", ".debug_loc.dwo"),
57         clEnumValN(DIDT_Frames, "frames", ".debug_frame"),
58         clEnumValN(DIDT_Ranges, "ranges", ".debug_ranges"),
59         clEnumValN(DIDT_Pubnames, "pubnames", ".debug_pubnames"),
60         clEnumValN(DIDT_Pubtypes, "pubtypes", ".debug_pubtypes"),
61         clEnumValN(DIDT_GnuPubnames, "gnu_pubnames", ".debug_gnu_pubnames"),
62         clEnumValN(DIDT_GnuPubtypes, "gnu_pubtypes", ".debug_gnu_pubtypes"),
63         clEnumValN(DIDT_Str, "str", ".debug_str"),
64         clEnumValN(DIDT_StrDwo, "str.dwo", ".debug_str.dwo"),
65         clEnumValN(DIDT_StrOffsetsDwo, "str_offsets.dwo", ".debug_str_offsets.dwo"),
66         clEnumValEnd));
67
68 static void DumpInput(const StringRef &Filename) {
69   std::unique_ptr<MemoryBuffer> Buff;
70
71   if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(Filename, Buff)) {
72     errs() << Filename << ": " << ec.message() << "\n";
73     return;
74   }
75
76   ErrorOr<ObjectFile *> ObjOrErr(ObjectFile::createObjectFile(Buff));
77   if (std::error_code EC = ObjOrErr.getError()) {
78     errs() << Filename << ": " << EC.message() << '\n';
79     return;
80   }
81   std::unique_ptr<ObjectFile> Obj(ObjOrErr.get());
82
83   std::unique_ptr<DIContext> DICtx(DIContext::getDWARFContext(Obj.get()));
84
85   outs() << Filename
86          << ":\tfile format " << Obj->getFileFormatName() << "\n\n";
87   // Dump the complete DWARF structure.
88   DICtx->dump(outs(), DumpType);
89 }
90
91 int main(int argc, char **argv) {
92   // Print a stack trace if we signal out.
93   sys::PrintStackTraceOnErrorSignal();
94   PrettyStackTraceProgram X(argc, argv);
95   llvm_shutdown_obj Y;  // Call llvm_shutdown() on exit.
96
97   cl::ParseCommandLineOptions(argc, argv, "llvm dwarf dumper\n");
98
99   // Defaults to a.out if no filenames specified.
100   if (InputFilenames.size() == 0)
101     InputFilenames.push_back("a.out");
102
103   std::for_each(InputFilenames.begin(), InputFilenames.end(), DumpInput);
104
105   return 0;
106 }