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);
33 static opt<std::string> InputFile(Positional, desc("<input file>"),
34 init("a.out"), cat(DsymCategory));
36 static opt<std::string>
38 desc("Specify the output file. default: <input file>.dwarf"),
39 value_desc("filename"), cat(DsymCategory));
41 static opt<std::string> OsoPrependPath(
43 desc("Specify a directory to prepend to the paths of object files."),
44 value_desc("path"), cat(DsymCategory));
46 static opt<bool> Verbose("verbose", desc("Verbosity level"), init(false),
51 desc("Do the link in memory, but do not emit the result file."),
52 init(false), cat(DsymCategory));
56 desc("Do not use ODR (One Definition Rule) for type uniquing."),
57 init(false), cat(DsymCategory));
59 static opt<bool> DumpDebugMap(
61 desc("Parse and dump the debug map to standard output. Not DWARF link "
63 init(false), cat(DsymCategory));
65 static opt<bool> InputIsYAMLDebugMap(
66 "y", desc("Treat the input file is a YAML debug map rather than a binary."),
67 init(false), cat(DsymCategory));
70 int main(int argc, char **argv) {
71 llvm::sys::PrintStackTraceOnErrorSignal();
72 llvm::PrettyStackTraceProgram StackPrinter(argc, argv);
73 llvm::llvm_shutdown_obj Shutdown;
76 HideUnrelatedOptions(DsymCategory);
77 llvm::cl::ParseCommandLineOptions(
79 "manipulate archived DWARF debug symbol files.\n\n"
80 "dsymutil links the DWARF debug information found in the object files\n"
81 "for the executable <input file> by using debug symbols information\n"
82 "contained in its symbol table.\n");
87 auto DebugMapPtrOrErr =
88 parseDebugMap(InputFile, OsoPrependPath, Verbose, InputIsYAMLDebugMap);
90 Options.Verbose = Verbose;
91 Options.NoOutput = NoOutput;
92 Options.NoODR = NoODR;
94 llvm::InitializeAllTargetInfos();
95 llvm::InitializeAllTargetMCs();
96 llvm::InitializeAllTargets();
97 llvm::InitializeAllAsmPrinters();
99 if (auto EC = DebugMapPtrOrErr.getError()) {
100 llvm::errs() << "error: cannot parse the debug map for \"" << InputFile
101 << "\": " << EC.message() << '\n';
105 if (Verbose || DumpDebugMap)
106 (*DebugMapPtrOrErr)->print(llvm::outs());
111 std::string OutputFile;
112 if (OutputFileOpt.empty()) {
113 if (InputFile == "-")
114 OutputFile = "a.out.dwarf";
116 OutputFile = InputFile + ".dwarf";
118 OutputFile = OutputFileOpt;
121 return !linkDwarf(OutputFile, **DebugMapPtrOrErr, Options);