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 ErrorOr<std::unique_ptr<MemoryBuffer>> Buff = 70 MemoryBuffer::getFileOrSTDIN(Filename); 71 72 if (std::error_code EC = Buff.getError()) { 73 errs() << Filename << ": " << EC.message() << "\n"; 74 return; 75 } 76 77 ErrorOr<ObjectFile *> ObjOrErr(ObjectFile::createObjectFile(Buff.get())); 78 if (std::error_code EC = ObjOrErr.getError()) { 79 errs() << Filename << ": " << EC.message() << '\n'; 80 return; 81 } 82 std::unique_ptr<ObjectFile> Obj(ObjOrErr.get()); 83 84 std::unique_ptr<DIContext> DICtx(DIContext::getDWARFContext(Obj.get())); 85 86 outs() << Filename 87 << ":\tfile format " << Obj->getFileFormatName() << "\n\n"; 88 // Dump the complete DWARF structure. 89 DICtx->dump(outs(), DumpType); 90 } 91 92 int main(int argc, char **argv) { 93 // Print a stack trace if we signal out. 94 sys::PrintStackTraceOnErrorSignal(); 95 PrettyStackTraceProgram X(argc, argv); 96 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. 97 98 cl::ParseCommandLineOptions(argc, argv, "llvm dwarf dumper\n"); 99 100 // Defaults to a.out if no filenames specified. 101 if (InputFilenames.size() == 0) 102 InputFilenames.push_back("a.out"); 103 104 std::for_each(InputFilenames.begin(), InputFilenames.end(), DumpInput); 105 106 return 0; 107 } 108
