llvm-6502/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
Frederic Riss 931e22fd7c [dwarfdump] Add support for dumping accelerator tables.
The class used for the dump only allows to dump for the moment, but
it can (and will) be easily extended to support search also.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221836 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-12 23:48:10 +00:00

114 lines
4.3 KiB
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//===-- 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/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/MemoryObject.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(DIContext::getDWARFContext(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;
}