diff options
Diffstat (limited to 'tools/llvm-dwarfdump/llvm-dwarfdump.cpp')
| -rw-r--r-- | tools/llvm-dwarfdump/llvm-dwarfdump.cpp | 111 |
1 files changed, 55 insertions, 56 deletions
diff --git a/tools/llvm-dwarfdump/llvm-dwarfdump.cpp b/tools/llvm-dwarfdump/llvm-dwarfdump.cpp index d9e8e36efe5c..05a7aef67ece 100644 --- a/tools/llvm-dwarfdump/llvm-dwarfdump.cpp +++ b/tools/llvm-dwarfdump/llvm-dwarfdump.cpp @@ -1,9 +1,8 @@ //===-- llvm-dwarfdump.cpp - Debug info dumping utility for llvm ----------===// // -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // @@ -93,8 +92,6 @@ namespace { using namespace cl; OptionCategory DwarfDumpCategory("Specific Options"); -static opt<bool> Help("h", desc("Alias for -help"), Hidden, - cat(DwarfDumpCategory)); static list<std::string> InputFilenames(Positional, desc("<input object files or .dSYM bundles>"), ZeroOrMore, cat(DwarfDumpCategory)); @@ -142,10 +139,9 @@ static list<std::string> "-name option can be used instead."), value_desc("name"), cat(DwarfDumpCategory)); static alias FindAlias("f", desc("Alias for -find."), aliasopt(Find)); -static opt<bool> - IgnoreCase("ignore-case", - desc("Ignore case distinctions in when searching by name."), - value_desc("i"), cat(DwarfDumpCategory)); +static opt<bool> IgnoreCase("ignore-case", + desc("Ignore case distinctions when searching."), + value_desc("i"), cat(DwarfDumpCategory)); static alias IgnoreCaseAlias("i", desc("Alias for -ignore-case."), aliasopt(IgnoreCase)); static list<std::string> Name( @@ -155,17 +151,17 @@ static list<std::string> Name( "the -regex option <pattern> is interpreted as a regular expression."), value_desc("pattern"), cat(DwarfDumpCategory)); static alias NameAlias("n", desc("Alias for -name"), aliasopt(Name)); -static opt<unsigned long long> Lookup("lookup", +static opt<uint64_t> + Lookup("lookup", desc("Lookup <address> in the debug information and print out any " "available file, function, block and line table details."), value_desc("address"), cat(DwarfDumpCategory)); static opt<std::string> - OutputFilename("out-file", cl::init(""), + OutputFilename("o", cl::init("-"), cl::desc("Redirect output to the specified file."), - cl::value_desc("filename")); -static alias OutputFilenameAlias("o", desc("Alias for -out-file."), - aliasopt(OutputFilename), - cat(DwarfDumpCategory)); + cl::value_desc("filename"), cat(DwarfDumpCategory)); +static alias OutputFilenameAlias("out-file", desc("Alias for -o."), + aliasopt(OutputFilename)); static opt<bool> UseRegex("regex", desc("Treat any <pattern> strings as regular expressions when " @@ -175,14 +171,14 @@ static alias RegexAlias("x", desc("Alias for -regex"), aliasopt(UseRegex)); static opt<bool> ShowChildren("show-children", desc("Show a debug info entry's children when selectively " - "printing with the =<offset> option."), + "printing entries."), cat(DwarfDumpCategory)); static alias ShowChildrenAlias("c", desc("Alias for -show-children."), aliasopt(ShowChildren)); static opt<bool> ShowParents("show-parents", desc("Show a debug info entry's parents when selectively " - "printing with the =<offset> option."), + "printing entries."), cat(DwarfDumpCategory)); static alias ShowParentsAlias("p", desc("Alias for -show-parents."), aliasopt(ShowParents)); @@ -192,13 +188,18 @@ static opt<bool> cat(DwarfDumpCategory)); static alias ShowFormAlias("F", desc("Alias for -show-form."), aliasopt(ShowForm), cat(DwarfDumpCategory)); -static opt<unsigned> RecurseDepth( - "recurse-depth", - desc("Only recurse to a depth of N when displaying debug info entries."), - cat(DwarfDumpCategory), init(-1U), value_desc("N")); -static alias RecurseDepthAlias("r", desc("Alias for -recurse-depth."), - aliasopt(RecurseDepth)); - +static opt<unsigned> + ChildRecurseDepth("recurse-depth", + desc("Only recurse to a depth of N when displaying " + "children of debug info entries."), + cat(DwarfDumpCategory), init(-1U), value_desc("N")); +static alias ChildRecurseDepthAlias("r", desc("Alias for -recurse-depth."), + aliasopt(ChildRecurseDepth)); +static opt<unsigned> + ParentRecurseDepth("parent-recurse-depth", + desc("Only recurse to a depth of N when displaying " + "parents of debug info entries."), + cat(DwarfDumpCategory), init(-1U), value_desc("N")); static opt<bool> SummarizeTypes("summarize-types", desc("Abbreviate the description of type unit entries."), @@ -219,6 +220,8 @@ static opt<bool> Verbose("verbose", cat(DwarfDumpCategory)); static alias VerboseAlias("v", desc("Alias for -verbose."), aliasopt(Verbose), cat(DwarfDumpCategory)); +static cl::extrahelp + HelpResponse("\nPass @FILE as argument to read options from FILE.\n"); } // namespace /// @} //===----------------------------------------------------------------------===// @@ -233,7 +236,8 @@ static void error(StringRef Prefix, std::error_code EC) { static DIDumpOptions getDumpOpts() { DIDumpOptions DumpOpts; DumpOpts.DumpType = DumpType; - DumpOpts.RecurseDepth = RecurseDepth; + DumpOpts.ChildRecurseDepth = ChildRecurseDepth; + DumpOpts.ParentRecurseDepth = ParentRecurseDepth; DumpOpts.ShowAddresses = !Diff; DumpOpts.ShowChildren = ShowChildren; DumpOpts.ShowParents = ShowParents; @@ -259,19 +263,16 @@ static bool filterArch(ObjectFile &Obj) { return true; if (auto *MachO = dyn_cast<MachOObjectFile>(&Obj)) { - std::string ObjArch = - Triple::getArchTypeName(MachO->getArchTriple().getArch()); - for (auto Arch : ArchFilters) { - // Match name. - if (Arch == ObjArch) - return true; - // Match architecture number. unsigned Value; if (!StringRef(Arch).getAsInteger(0, Value)) if (Value == getCPUType(*MachO)) return true; + + // Match as name. + if (MachO->getArchTriple().getArch() == Triple(Arch).getArch()) + return true; } } return false; @@ -380,14 +381,19 @@ static void filterByAccelName(ArrayRef<std::string> Names, DWARFContext &DICtx, /// Handle the --lookup option and dump the DIEs and line info for the given /// address. -static bool lookup(DWARFContext &DICtx, uint64_t Address, raw_ostream &OS) { +/// TODO: specified Address for --lookup option could relate for several +/// different sections(in case not-linked object file). llvm-dwarfdump +/// need to do something with this: extend lookup option with section +/// information or probably display all matched entries, or something else... +static bool lookup(ObjectFile &Obj, DWARFContext &DICtx, uint64_t Address, + raw_ostream &OS) { auto DIEsForAddr = DICtx.getDIEsForAddress(Lookup); if (!DIEsForAddr) return false; DIDumpOptions DumpOpts = getDumpOpts(); - DumpOpts.RecurseDepth = 0; + DumpOpts.ChildRecurseDepth = 0; DIEsForAddr.CompileUnit->dump(OS, DumpOpts); if (DIEsForAddr.FunctionDIE) { DIEsForAddr.FunctionDIE.dump(OS, 2, DumpOpts); @@ -395,7 +401,10 @@ static bool lookup(DWARFContext &DICtx, uint64_t Address, raw_ostream &OS) { DIEsForAddr.BlockDIE.dump(OS, 4, DumpOpts); } - if (DILineInfo LineInfo = DICtx.getLineInfoForAddress(Lookup)) + // TODO: it is neccessary to set proper SectionIndex here. + // object::SectionedAddress::UndefSection works for only absolute addresses. + if (DILineInfo LineInfo = DICtx.getLineInfoForAddress( + {Lookup, object::SectionedAddress::UndefSection})) LineInfo.dump(OS); return true; @@ -414,7 +423,7 @@ static bool dumpObjectFile(ObjectFile &Obj, DWARFContext &DICtx, Twine Filename, // Handle the --lookup option. if (Lookup) - return lookup(DICtx, Lookup, OS); + return lookup(Obj, DICtx, Lookup, OS); // Handle the --name option. if (!Name.empty()) { @@ -566,11 +575,6 @@ int main(int argc, char **argv) { "pretty-print DWARF debug information in object files" " and debug info archives.\n"); - if (Help) { - PrintHelpMessage(/*Hidden =*/false, /*Categorized =*/true); - return 0; - } - // FIXME: Audit interactions between these two options and make them // compatible. if (Diff && Verbose) { @@ -579,17 +583,12 @@ int main(int argc, char **argv) { return 0; } - std::unique_ptr<ToolOutputFile> OutputFile; - if (!OutputFilename.empty()) { - std::error_code EC; - OutputFile = llvm::make_unique<ToolOutputFile>(OutputFilename, EC, - sys::fs::F_None); - error("Unable to open output file" + OutputFilename, EC); - // Don't remove output file if we exit with an error. - OutputFile->keep(); - } + std::error_code EC; + ToolOutputFile OutputFile(OutputFilename, EC, sys::fs::OF_None); + error("Unable to open output file" + OutputFilename, EC); + // Don't remove output file if we exit with an error. + OutputFile.keep(); - raw_ostream &OS = OutputFile ? OutputFile->os() : outs(); bool OffsetRequested = false; // Defaults to dumping all sections, unless brief mode is specified in which @@ -633,15 +632,15 @@ int main(int argc, char **argv) { if (Verify) { // If we encountered errors during verify, exit with a non-zero exit status. if (!all_of(Objects, [&](std::string Object) { - return handleFile(Object, verifyObjectFile, OS); + return handleFile(Object, verifyObjectFile, OutputFile.os()); })) - exit(1); + return 1; } else if (Statistics) for (auto Object : Objects) - handleFile(Object, collectStatsForObjectFile, OS); + handleFile(Object, collectStatsForObjectFile, OutputFile.os()); else for (auto Object : Objects) - handleFile(Object, dumpObjectFile, OS); + handleFile(Object, dumpObjectFile, OutputFile.os()); return EXIT_SUCCESS; } |