diff options
Diffstat (limited to 'contrib/llvm/tools/llvm-dwarfdump')
4 files changed, 183 insertions, 0 deletions
diff --git a/contrib/llvm/tools/llvm-dwarfdump/LLVMBuild.txt b/contrib/llvm/tools/llvm-dwarfdump/LLVMBuild.txt new file mode 100644 index 0000000..a9dca3e --- /dev/null +++ b/contrib/llvm/tools/llvm-dwarfdump/LLVMBuild.txt @@ -0,0 +1,22 @@ +;===- ./tools/llvm-dwarfdump/LLVMBuild.txt ---------------------*- Conf -*--===; +; +; The LLVM Compiler Infrastructure +; +; This file is distributed under the University of Illinois Open Source +; License. See LICENSE.TXT for details. +; +;===------------------------------------------------------------------------===; +; +; This is an LLVMBuild description file for the components in this subdirectory. +; +; For more information on the LLVMBuild system, please see: +; +; http://llvm.org/docs/LLVMBuild.html +; +;===------------------------------------------------------------------------===; + +[component_0] +type = Tool +name = llvm-dwarfdump +parent = Tools +required_libraries = DebugInfoDWARF Object diff --git a/contrib/llvm/tools/llvm-dwarfdump/fuzzer/CMakeLists.txt b/contrib/llvm/tools/llvm-dwarfdump/fuzzer/CMakeLists.txt new file mode 100644 index 0000000..1de35a3 --- /dev/null +++ b/contrib/llvm/tools/llvm-dwarfdump/fuzzer/CMakeLists.txt @@ -0,0 +1,14 @@ +set(LLVM_LINK_COMPONENTS + DebugInfoDWARF + Object + Support + ) + +add_llvm_executable(llvm-dwarfdump-fuzzer + EXCLUDE_FROM_ALL + llvm-dwarfdump-fuzzer.cpp + ) + +target_link_libraries(llvm-dwarfdump-fuzzer + LLVMFuzzer + ) diff --git a/contrib/llvm/tools/llvm-dwarfdump/fuzzer/llvm-dwarfdump-fuzzer.cpp b/contrib/llvm/tools/llvm-dwarfdump/fuzzer/llvm-dwarfdump-fuzzer.cpp new file mode 100644 index 0000000..af0ac36 --- /dev/null +++ b/contrib/llvm/tools/llvm-dwarfdump/fuzzer/llvm-dwarfdump-fuzzer.cpp @@ -0,0 +1,34 @@ +//===-- llvm-dwarfdump-fuzzer.cpp - Fuzz the llvm-dwarfdump tool ----------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +/// +/// \file +/// \brief This file implements a function that runs llvm-dwarfdump +/// on a single input. This function is then linked into the Fuzzer library. +/// +//===----------------------------------------------------------------------===// +#include "llvm/DebugInfo/DIContext.h" +#include "llvm/DebugInfo/DWARF/DWARFContext.h" +#include "llvm/Object/ObjectFile.h" +#include "llvm/Support/MemoryBuffer.h" + +using namespace llvm; +using namespace object; + +extern "C" void LLVMFuzzerTestOneInput(uint8_t *data, size_t size) { + std::unique_ptr<MemoryBuffer> Buff = MemoryBuffer::getMemBuffer( + StringRef((const char *)data, size), "", false); + + ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = + ObjectFile::createObjectFile(Buff->getMemBufferRef()); + if (!ObjOrErr) + return; + ObjectFile &Obj = *ObjOrErr.get(); + std::unique_ptr<DIContext> DICtx(new DWARFContextInMemory(Obj)); + DICtx->dump(nulls(), DIDT_All); +} diff --git a/contrib/llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp b/contrib/llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp new file mode 100644 index 0000000..c1cb021 --- /dev/null +++ b/contrib/llvm/tools/llvm-dwarfdump/llvm-dwarfdump.cpp @@ -0,0 +1,113 @@ +//===-- 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. +// +//===----------------------------------------------------------------------===// +// +// This program is a utility that works like "dwarfdump". +// +//===----------------------------------------------------------------------===// + +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/Triple.h" +#include "llvm/DebugInfo/DIContext.h" +#include "llvm/DebugInfo/DWARF/DWARFContext.h" +#include "llvm/Object/ObjectFile.h" +#include "llvm/Object/RelocVisitor.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/Debug.h" +#include "llvm/Support/Format.h" +#include "llvm/Support/ManagedStatic.h" +#include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/PrettyStackTrace.h" +#include "llvm/Support/Signals.h" +#include "llvm/Support/raw_ostream.h" +#include <algorithm> +#include <cstring> +#include <list> +#include <string> +#include <system_error> + +using namespace llvm; +using namespace object; + +static cl::list<std::string> +InputFilenames(cl::Positional, cl::desc("<input object files>"), + cl::ZeroOrMore); + +static cl::opt<DIDumpType> +DumpType("debug-dump", cl::init(DIDT_All), + cl::desc("Dump of debug sections:"), + cl::values( + clEnumValN(DIDT_All, "all", "Dump all debug sections"), + clEnumValN(DIDT_Abbrev, "abbrev", ".debug_abbrev"), + clEnumValN(DIDT_AbbrevDwo, "abbrev.dwo", ".debug_abbrev.dwo"), + clEnumValN(DIDT_AppleNames, "apple_names", ".apple_names"), + clEnumValN(DIDT_AppleTypes, "apple_types", ".apple_types"), + clEnumValN(DIDT_AppleNamespaces, "apple_namespaces", ".apple_namespaces"), + clEnumValN(DIDT_AppleObjC, "apple_objc", ".apple_objc"), + clEnumValN(DIDT_Aranges, "aranges", ".debug_aranges"), + clEnumValN(DIDT_Info, "info", ".debug_info"), + clEnumValN(DIDT_InfoDwo, "info.dwo", ".debug_info.dwo"), + clEnumValN(DIDT_Types, "types", ".debug_types"), + clEnumValN(DIDT_TypesDwo, "types.dwo", ".debug_types.dwo"), + clEnumValN(DIDT_Line, "line", ".debug_line"), + clEnumValN(DIDT_LineDwo, "line.dwo", ".debug_line.dwo"), + clEnumValN(DIDT_Loc, "loc", ".debug_loc"), + clEnumValN(DIDT_LocDwo, "loc.dwo", ".debug_loc.dwo"), + clEnumValN(DIDT_Frames, "frames", ".debug_frame"), + clEnumValN(DIDT_Ranges, "ranges", ".debug_ranges"), + clEnumValN(DIDT_Pubnames, "pubnames", ".debug_pubnames"), + clEnumValN(DIDT_Pubtypes, "pubtypes", ".debug_pubtypes"), + clEnumValN(DIDT_GnuPubnames, "gnu_pubnames", ".debug_gnu_pubnames"), + clEnumValN(DIDT_GnuPubtypes, "gnu_pubtypes", ".debug_gnu_pubtypes"), + clEnumValN(DIDT_Str, "str", ".debug_str"), + clEnumValN(DIDT_StrDwo, "str.dwo", ".debug_str.dwo"), + clEnumValN(DIDT_StrOffsetsDwo, "str_offsets.dwo", ".debug_str_offsets.dwo"), + clEnumValEnd)); + +static void DumpInput(StringRef Filename) { + ErrorOr<std::unique_ptr<MemoryBuffer>> BuffOrErr = + MemoryBuffer::getFileOrSTDIN(Filename); + + if (std::error_code EC = BuffOrErr.getError()) { + errs() << Filename << ": " << EC.message() << "\n"; + return; + } + std::unique_ptr<MemoryBuffer> Buff = std::move(BuffOrErr.get()); + + ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr = + ObjectFile::createObjectFile(Buff->getMemBufferRef()); + if (std::error_code EC = ObjOrErr.getError()) { + errs() << Filename << ": " << EC.message() << '\n'; + return; + } + ObjectFile &Obj = *ObjOrErr.get(); + + std::unique_ptr<DIContext> DICtx(new DWARFContextInMemory(Obj)); + + outs() << Filename + << ":\tfile format " << Obj.getFileFormatName() << "\n\n"; + // Dump the complete DWARF structure. + DICtx->dump(outs(), DumpType); +} + +int main(int argc, char **argv) { + // Print a stack trace if we signal out. + sys::PrintStackTraceOnErrorSignal(); + PrettyStackTraceProgram X(argc, argv); + llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. + + cl::ParseCommandLineOptions(argc, argv, "llvm dwarf dumper\n"); + + // Defaults to a.out if no filenames specified. + if (InputFilenames.size() == 0) + InputFilenames.push_back("a.out"); + + std::for_each(InputFilenames.begin(), InputFilenames.end(), DumpInput); + + return 0; +} |
