diff options
Diffstat (limited to 'tools/llvm-dwarfdump/llvm-dwarfdump.cpp')
| -rw-r--r-- | tools/llvm-dwarfdump/llvm-dwarfdump.cpp | 126 |
1 files changed, 29 insertions, 97 deletions
diff --git a/tools/llvm-dwarfdump/llvm-dwarfdump.cpp b/tools/llvm-dwarfdump/llvm-dwarfdump.cpp index e73300a..8094856 100644 --- a/tools/llvm-dwarfdump/llvm-dwarfdump.cpp +++ b/tools/llvm-dwarfdump/llvm-dwarfdump.cpp @@ -12,11 +12,11 @@ //===----------------------------------------------------------------------===// #include "llvm/ADT/OwningPtr.h" -#include "llvm/ADT/Triple.h" #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/DebugInfo/DIContext.h" #include "llvm/Support/CommandLine.h" #include "llvm/Support/Debug.h" #include "llvm/Support/Format.h" @@ -52,6 +52,25 @@ static cl::opt<bool> PrintInlining("inlining", cl::init(false), cl::desc("Print all inlined frames for a given address")); +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_Aranges, "aranges", ".debug_aranges"), + clEnumValN(DIDT_Info, "info", ".debug_info"), + clEnumValN(DIDT_InfoDwo, "info.dwo", ".debug_info.dwo"), + clEnumValN(DIDT_Line, "line", ".debug_line"), + clEnumValN(DIDT_Frames, "frames", ".debug_frame"), + clEnumValN(DIDT_Ranges, "ranges", ".debug_ranges"), + clEnumValN(DIDT_Pubnames, "pubnames", ".debug_pubnames"), + 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 PrintDILineInfo(DILineInfo dli) { if (PrintFunctions) outs() << (dli.getFunctionName() ? dli.getFunctionName() : "<unknown>") @@ -69,105 +88,18 @@ static void DumpInput(const StringRef &Filename) { } OwningPtr<ObjectFile> Obj(ObjectFile::createObjectFile(Buff.take())); - - StringRef DebugInfoSection; - RelocAddrMap RelocMap; - StringRef DebugAbbrevSection; - StringRef DebugLineSection; - StringRef DebugArangesSection; - StringRef DebugStringSection; - StringRef DebugRangesSection; - - error_code ec; - for (section_iterator i = Obj->begin_sections(), - e = Obj->end_sections(); - i != e; i.increment(ec)) { - StringRef name; - i->getName(name); - StringRef data; - i->getContents(data); - - if (name.startswith("__DWARF,")) - name = name.substr(8); // Skip "__DWARF," prefix. - name = name.substr(name.find_first_not_of("._")); // Skip . and _ prefixes. - if (name == "debug_info") - DebugInfoSection = data; - else if (name == "debug_abbrev") - DebugAbbrevSection = data; - else if (name == "debug_line") - DebugLineSection = data; - else if (name == "debug_aranges") - DebugArangesSection = data; - else if (name == "debug_str") - DebugStringSection = data; - else if (name == "debug_ranges") - DebugRangesSection = data; - // Any more debug info sections go here. - else - continue; - - // TODO: For now only handle relocations for the debug_info section. - if (name != "debug_info") - continue; - - if (i->begin_relocations() != i->end_relocations()) { - uint64_t SectionSize; - i->getSize(SectionSize); - for (relocation_iterator reloc_i = i->begin_relocations(), - reloc_e = i->end_relocations(); - reloc_i != reloc_e; reloc_i.increment(ec)) { - uint64_t Address; - reloc_i->getAddress(Address); - uint64_t Type; - reloc_i->getType(Type); - - RelocVisitor V(Obj->getFileFormatName()); - // The section address is always 0 for debug sections. - RelocToApply R(V.visit(Type, *reloc_i)); - if (V.error()) { - SmallString<32> Name; - error_code ec(reloc_i->getTypeName(Name)); - if (ec) { - errs() << "Aaaaaa! Nameless relocation! Aaaaaa!\n"; - } - errs() << "error: failed to compute relocation: " - << Name << "\n"; - continue; - } - - if (Address + R.Width > SectionSize) { - errs() << "error: " << R.Width << "-byte relocation starting " - << Address << " bytes into section " << name << " which is " - << SectionSize << " bytes long.\n"; - continue; - } - if (R.Width > 8) { - errs() << "error: can't handle a relocation of more than 8 bytes at " - "a time.\n"; - continue; - } - DEBUG(dbgs() << "Writing " << format("%p", R.Value) - << " at " << format("%p", Address) - << " with width " << format("%d", R.Width) - << "\n"); - RelocMap[Address] = std::make_pair(R.Width, R.Value); - } - } + if (!Obj) { + errs() << Filename << ": Unknown object file format\n"; + return; } - OwningPtr<DIContext> dictx(DIContext::getDWARFContext(/*FIXME*/true, - DebugInfoSection, - DebugAbbrevSection, - DebugArangesSection, - DebugLineSection, - DebugStringSection, - DebugRangesSection, - RelocMap)); + OwningPtr<DIContext> DICtx(DIContext::getDWARFContext(Obj.get())); + if (Address == -1ULL) { outs() << Filename << ":\tfile format " << Obj->getFileFormatName() << "\n\n"; // Dump the complete DWARF structure. - dictx->dump(outs()); + DICtx->dump(outs(), DumpType); } else { // Print line info for the specified address. int SpecFlags = DILineInfoSpecifier::FileLineInfo | @@ -176,7 +108,7 @@ static void DumpInput(const StringRef &Filename) { SpecFlags |= DILineInfoSpecifier::FunctionName; if (PrintInlining) { DIInliningInfo InliningInfo = - dictx->getInliningInfoForAddress(Address, SpecFlags); + DICtx->getInliningInfoForAddress(Address, SpecFlags); uint32_t n = InliningInfo.getNumberOfFrames(); if (n == 0) { // Print one empty debug line info in any case. @@ -188,7 +120,7 @@ static void DumpInput(const StringRef &Filename) { } } } else { - DILineInfo dli = dictx->getLineInfoForAddress(Address, SpecFlags); + DILineInfo dli = DICtx->getLineInfoForAddress(Address, SpecFlags); PrintDILineInfo(dli); } } |
