Revert "llvm-dwarfdump: Add support for -debug-info=<offset>."

This reverts commit r313412 because of a g++ incompatibility.

llvm-svn: 313413

1 files changed, 10 insertions, 73 deletions

diff --git a/llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp b/llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
index 7671bd8adaf..823eb8e8133 100644
--- a/llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
+++ b/llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
@@ -37,59 +37,8 @@
 using namespace llvm;
 using namespace object;
 
-/// Parser for options that take an optional offest argument.
-/// @{
-struct OffsetOption {
-  uint64_t Val = 0;
-  bool HasValue = false;
-  bool IsRequested = false;
-};
-
-template <>
-class cl::parser<OffsetOption> final : public cl::basic_parser<OffsetOption> {
-public:
-  parser(Option &O) : basic_parser(O) {}
-
-  /// Return true on error.
-  bool parse(Option &O, StringRef ArgName, StringRef Arg, OffsetOption &Val) {
-    if (Arg == "") {
-      Val.Val = 0;
-      Val.HasValue = false;
-      Val.IsRequested = true;
-      return false;
-    }
-    if (Arg.getAsInteger(0, Val.Val))
-      return O.error("'" + Arg + "' value invalid for integer argument!");
-    Val.HasValue = true;
-    Val.IsRequested = true;
-    return false;
-  }
-
-  enum ValueExpected getValueExpectedFlagDefault() const {
-    return ValueOptional;
-  }
-
-  void printOptionInfo(const Option &O, size_t GlobalWidth) const {
-    outs() << "  -" << O.ArgStr;
-    Option::printHelpStr(O.HelpStr, GlobalWidth, getOptionWidth(O));
-  }
-
-  void printOptionDiff(const Option &O, OffsetOption V, OptVal Default,
-                       size_t GlobalWidth) const {
-    printOptionName(O, GlobalWidth);
-    outs() << "[=offset]";
-  }
-
-  // An out-of-line virtual method to provide a 'home' for this class.
-  void anchor() override {};
-};
-
-/// @}
-/// Command line options.
-/// @{
-
 namespace {
-using namespace cl;
+using namespace llvm::cl;
 
 OptionCategory DwarfDumpCategory("Specific Options");
 static opt<bool> Help("h", desc("Alias for -help"), Hidden,
@@ -98,26 +47,20 @@ static list<std::string>
     InputFilenames(Positional, desc("<input object files or .dSYM bundles>"),
                    ZeroOrMore, cat(DwarfDumpCategory));
 
-cl::OptionCategory SectionCategory("Section-specific Dump Options",
-                                   "These control which sections are dumped. "
-                                   "Where applicable these parameters take an "
-                                   "optional =<offset> argument to dump only "
-                                   "the entry at the specified offset.");
-
+cl::OptionCategory
+    SectionCategory("Section-specific Dump Options",
+                    "These control which sections are dumped.");
 static opt<bool> DumpAll("all", desc("Dump all debug info sections"),
                          cat(SectionCategory));
 static alias DumpAllAlias("a", desc("Alias for -all"), aliasopt(DumpAll));
 
-// Options for dumping specific sections.
 static unsigned DumpType = DIDT_Null;
-static std::array<Optional<uint64_t>, DIDT_ID_Count> DumpOffsets;
 #define HANDLE_DWARF_SECTION(ENUM_NAME, ELF_NAME, CMDLINE_NAME)                \
-  static opt<OffsetOption> Dump##ENUM_NAME(                                    \
-      CMDLINE_NAME, desc("Dump the " ELF_NAME " section"),                     \
-      cat(SectionCategory));
+  static opt<bool> Dump##ENUM_NAME(CMDLINE_NAME,                               \
+                                   desc("Dump the " ELF_NAME " section"),      \
+                                   cat(SectionCategory));
 #include "llvm/BinaryFormat/Dwarf.def"
 #undef HANDLE_DWARF_SECTION
-
 static opt<bool> DumpUUID("uuid", desc("Show the UUID for each architecture"),
                           cat(DwarfDumpCategory));
 static alias DumpUUIDAlias("u", desc("Alias for -uuid"), aliasopt(DumpUUID));
@@ -135,9 +78,6 @@ static opt<bool> Verbose("verbose",
 static alias VerboseAlias("v", desc("Alias for -verbose"), aliasopt(Verbose),
                           cat(DwarfDumpCategory));
 } // namespace
-/// @}
-//===----------------------------------------------------------------------===//
-
 
 static void error(StringRef Filename, std::error_code EC) {
   if (!EC)
@@ -163,7 +103,7 @@ static bool dumpObjectFile(ObjectFile &Obj, Twine Filename) {
     outs() << Filename << ":\tfile format " << Obj.getFileFormatName() << '\n';
 
   // Dump the complete DWARF structure.
-  DICtx->dump(outs(), getDumpOpts(), DumpOffsets);
+  DICtx->dump(outs(), getDumpOpts());
   return true;
 }
 
@@ -297,11 +237,8 @@ int main(int argc, char **argv) {
   // Defaults to dumping all sections, unless brief mode is specified in which
   // case only the .debug_info section in dumped.
 #define HANDLE_DWARF_SECTION(ENUM_NAME, ELF_NAME, CMDLINE_NAME)                \
-  if (Dump##ENUM_NAME.IsRequested) {                                           \
-    DumpType |= DIDT_##ENUM_NAME;                                              \
-    if (Dump##ENUM_NAME.HasValue)                                              \
-      DumpOffsets[DIDT_ID_##ENUM_NAME] = Dump##ENUM_NAME.Val;                  \
-  }
+  if (Dump##ENUM_NAME)                                                         \
+    DumpType |= DIDT_##ENUM_NAME;
 #include "llvm/BinaryFormat/Dwarf.def"
 #undef HANDLE_DWARF_SECTION
   if (DumpUUID)