1 //===-- llvm-dwarfdump.cpp - Debug info dumping utility for llvm ----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This program is a utility that works like "dwarfdump".
12 //===----------------------------------------------------------------------===//
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"
32 #include <system_error>
35 using namespace object;
37 static cl::list<std::string>
38 InputFilenames(cl::Positional, cl::desc("<input object files>"),
41 static cl::opt<DIDumpType>
42 DumpType("debug-dump", cl::init(DIDT_All),
43 cl::desc("Dump of debug sections:"),
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"),
68 static void DumpInput(StringRef Filename) {
69 ErrorOr<std::unique_ptr<MemoryBuffer>> BuffOrErr =
70 MemoryBuffer::getFileOrSTDIN(Filename);
72 if (std::error_code EC = BuffOrErr.getError()) {
73 errs() << Filename << ": " << EC.message() << "\n";
76 std::unique_ptr<MemoryBuffer> Buff = std::move(BuffOrErr.get());
78 ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
79 ObjectFile::createObjectFile(Buff->getMemBufferRef());
80 if (std::error_code EC = ObjOrErr.getError()) {
81 errs() << Filename << ": " << EC.message() << '\n';
84 ObjectFile &Obj = *ObjOrErr.get();
86 std::unique_ptr<DIContext> DICtx(DIContext::getDWARFContext(Obj));
89 << ":\tfile format " << Obj.getFileFormatName() << "\n\n";
90 // Dump the complete DWARF structure.
91 DICtx->dump(outs(), DumpType);
94 int main(int argc, char **argv) {
95 // Print a stack trace if we signal out.
96 sys::PrintStackTraceOnErrorSignal();
97 PrettyStackTraceProgram X(argc, argv);
98 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
100 cl::ParseCommandLineOptions(argc, argv, "llvm dwarf dumper\n");
102 // Defaults to a.out if no filenames specified.
103 if (InputFilenames.size() == 0)
104 InputFilenames.push_back("a.out");
106 std::for_each(InputFilenames.begin(), InputFilenames.end(), DumpInput);