1 //===-- dsymutil.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 aims to be a dropin replacement for
13 //===----------------------------------------------------------------------===//
17 #include "llvm/Support/ManagedStatic.h"
18 #include "llvm/Support/Options.h"
19 #include "llvm/Support/PrettyStackTrace.h"
20 #include "llvm/Support/Signals.h"
21 #include "llvm/Support/raw_ostream.h"
22 #include "llvm/Support/TargetSelect.h"
25 using namespace llvm::dsymutil;
28 using namespace llvm::cl;
30 OptionCategory DsymCategory("Specific Options");
31 static opt<bool> Help("h", desc("Alias for -help"), Hidden);
32 static opt<bool> Version("v", desc("Alias for -version"), Hidden);
34 static opt<std::string> InputFile(Positional, desc("<input file>"),
35 init("a.out"), cat(DsymCategory));
37 static opt<std::string>
39 desc("Specify the output file. default: <input file>.dwarf"),
40 value_desc("filename"), cat(DsymCategory));
42 static opt<std::string> OsoPrependPath(
44 desc("Specify a directory to prepend to the paths of object files."),
45 value_desc("path"), cat(DsymCategory));
47 static opt<bool> Verbose("verbose", desc("Verbosity level"), init(false),
52 desc("Do the link in memory, but do not emit the result file."),
53 init(false), cat(DsymCategory));
57 desc("Do not use ODR (One Definition Rule) for type uniquing."),
58 init(false), cat(DsymCategory));
60 static opt<bool> DumpDebugMap(
62 desc("Parse and dump the debug map to standard output. Not DWARF link "
64 init(false), cat(DsymCategory));
66 static opt<bool> InputIsYAMLDebugMap(
67 "y", desc("Treat the input file is a YAML debug map rather than a binary."),
68 init(false), cat(DsymCategory));
71 int main(int argc, char **argv) {
72 llvm::sys::PrintStackTraceOnErrorSignal();
73 llvm::PrettyStackTraceProgram StackPrinter(argc, argv);
74 llvm::llvm_shutdown_obj Shutdown;
77 HideUnrelatedOptions(DsymCategory);
78 llvm::cl::ParseCommandLineOptions(
80 "manipulate archived DWARF debug symbol files.\n\n"
81 "dsymutil links the DWARF debug information found in the object files\n"
82 "for the executable <input file> by using debug symbols information\n"
83 "contained in its symbol table.\n");
89 llvm::cl::PrintVersionMessage();
93 auto DebugMapPtrOrErr =
94 parseDebugMap(InputFile, OsoPrependPath, Verbose, InputIsYAMLDebugMap);
96 Options.Verbose = Verbose;
97 Options.NoOutput = NoOutput;
98 Options.NoODR = NoODR;
100 llvm::InitializeAllTargetInfos();
101 llvm::InitializeAllTargetMCs();
102 llvm::InitializeAllTargets();
103 llvm::InitializeAllAsmPrinters();
105 if (auto EC = DebugMapPtrOrErr.getError()) {
106 llvm::errs() << "error: cannot parse the debug map for \"" << InputFile
107 << "\": " << EC.message() << '\n';
111 if (Verbose || DumpDebugMap)
112 (*DebugMapPtrOrErr)->print(llvm::outs());
117 std::string OutputFile;
118 if (OutputFileOpt.empty()) {
119 if (InputFile == "-")
120 OutputFile = "a.out.dwarf";
122 OutputFile = InputFile + ".dwarf";
124 OutputFile = OutputFileOpt;
127 return !linkDwarf(OutputFile, **DebugMapPtrOrErr, Options);