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Finish templating MachObjectFile over endianness.

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We are now able to handle big endian macho files in llvm-readobject. Thanks to
David Fang for providing the object files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179440 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2013-04-13 01:45:40 +00:00
parent 3d60241c3e
commit da2a2372c6
10 changed files with 1352 additions and 592 deletions
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48
tools/llvm-objdump/MachODump.cpp
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@@ -27,6 +27,7 @@
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Object/MachO.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Format.h"
@@ -183,11 +184,14 @@ static void emitDOTFile(const char *FileName, const MCFunction &f,
Out << "}\n";
}
static void getSectionsAndSymbols(const MachOObjectFileBase::Header *Header,
MachOObjectFileBase *MachOObj,
std::vector<SectionRef> &Sections,
std::vector<SymbolRef> &Symbols,
SmallVectorImpl<uint64_t> &FoundFns) {
template<endianness E>
static void
getSectionsAndSymbols(const typename MachOObjectFileMiddle<E>::Header *Header,
const MachOObjectFileMiddle<E> *MachOObj,
std::vector<SectionRef> &Sections,
std::vector<SymbolRef> &Symbols,
SmallVectorImpl<uint64_t> &FoundFns) {
typedef MachOObjectFileMiddle<E> ObjType;
error_code ec;
for (symbol_iterator SI = MachOObj->begin_symbols(),
SE = MachOObj->end_symbols(); SI != SE; SI.increment(ec))
@@ -202,19 +206,23 @@ static void getSectionsAndSymbols(const MachOObjectFileBase::Header *Header,
}
for (unsigned i = 0; i != Header->NumLoadCommands; ++i) {
const MachOObjectFileBase::LoadCommand *Command =
const typename ObjType::LoadCommand *Command =
MachOObj->getLoadCommandInfo(i);
if (Command->Type == macho::LCT_FunctionStarts) {
// We found a function starts segment, parse the addresses for later
// consumption.
const MachOObjectFileBase::LinkeditDataLoadCommand *LLC =
reinterpret_cast<const MachOObjectFileBase::LinkeditDataLoadCommand*>(Command);
const typename ObjType::LinkeditDataLoadCommand *LLC =
reinterpret_cast<const typename ObjType::LinkeditDataLoadCommand*>(Command);
MachOObj->ReadULEB128s(LLC->DataOffset, FoundFns);
}
}
}
template<endianness E>
static void DisassembleInputMachO2(StringRef Filename,
MachOObjectFileMiddle<E> *MachOOF);
void llvm::DisassembleInputMachO(StringRef Filename) {
OwningPtr<MemoryBuffer> Buff;
@@ -226,7 +234,18 @@ void llvm::DisassembleInputMachO(StringRef Filename) {
OwningPtr<MachOObjectFileBase> MachOOF(static_cast<MachOObjectFileBase*>(
ObjectFile::createMachOObjectFile(Buff.take())));
const Target *TheTarget = GetTarget(MachOOF.get());
if (MachOObjectFileLE *O = dyn_cast<MachOObjectFileLE>(MachOOF.get())) {
DisassembleInputMachO2(Filename, O);
return;
}
MachOObjectFileBE *O = cast<MachOObjectFileBE>(MachOOF.get());
DisassembleInputMachO2(Filename, O);
}
template<endianness E>
static void DisassembleInputMachO2(StringRef Filename,
MachOObjectFileMiddle<E> *MachOOF) {
const Target *TheTarget = GetTarget(MachOOF);
if (!TheTarget) {
// GetTarget prints out stuff.
return;
@@ -254,13 +273,14 @@ void llvm::DisassembleInputMachO(StringRef Filename) {
outs() << '\n' << Filename << ":\n\n";
const MachOObjectFileBase::Header *Header = MachOOF->getHeader();
const typename MachOObjectFileMiddle<E>::Header *Header =
MachOOF->getHeader();
std::vector<SectionRef> Sections;
std::vector<SymbolRef> Symbols;
SmallVector<uint64_t, 8> FoundFns;
getSectionsAndSymbols(Header, MachOOF.get(), Sections, Symbols, FoundFns);
getSectionsAndSymbols(Header, MachOOF, Sections, Symbols, FoundFns);
// Make a copy of the unsorted symbol list. FIXME: duplication
std::vector<SymbolRef> UnsortedSymbols(Symbols);
@@ -274,7 +294,7 @@ void llvm::DisassembleInputMachO(StringRef Filename) {
#endif
OwningPtr<DIContext> diContext;
ObjectFile *DbgObj = MachOOF.get();
ObjectFile *DbgObj = MachOOF;
// Try to find debug info and set up the DIContext for it.
if (UseDbg) {
// A separate DSym file path was specified, parse it as a macho file,
@@ -563,7 +583,7 @@ void llvm::DisassembleInputMachO(StringRef Filename) {
Relocs[j].second.getName(SymName);
outs() << "\t# " << SymName << ' ';
DumpAddress(Addr, Sections, MachOOF.get(), outs());
DumpAddress(Addr, Sections, MachOOF, outs());
}
// If this instructions contains an address, see if we can evaluate
@@ -572,7 +592,7 @@ void llvm::DisassembleInputMachO(StringRef Filename) {
Inst.Address,
Inst.Size);
if (targ != -1ULL)
DumpAddress(targ, Sections, MachOOF.get(), outs());
DumpAddress(targ, Sections, MachOOF, outs());
// Print debug info.
if (diContext) {