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llvm-mirror/tools/obj2yaml/obj2yaml.cpp
Chris Bieneman c9778ed077 [obj2yaml] [yaml2obj] Support for MachO Universal binaries
This patch adds round-trip support for MachO Universal binaries to obj2yaml and yaml2obj. Universal binaries have a header and list of architecture structures, followed by a the individual object files at specified offsets.

llvm-svn: 273719
2016-06-24 20:42:28 +00:00

64 lines
2.0 KiB
C++

//===------ utils/obj2yaml.cpp - obj2yaml conversion tool -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Error.h"
#include "obj2yaml.h"
#include "llvm/Object/Archive.h"
#include "llvm/Object/COFF.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
using namespace llvm;
using namespace llvm::object;
static std::error_code dumpObject(const ObjectFile &Obj) {
if (Obj.isCOFF())
return coff2yaml(outs(), cast<COFFObjectFile>(Obj));
if (Obj.isELF())
return elf2yaml(outs(), Obj);
return obj2yaml_error::unsupported_obj_file_format;
}
static std::error_code dumpInput(StringRef File) {
Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
if (!BinaryOrErr)
return errorToErrorCode(BinaryOrErr.takeError());
Binary &Binary = *BinaryOrErr.get().getBinary();
// Universal MachO is not a subclass of ObjectFile, so it needs to be handled
// here with the other binary types.
if (Binary.isMachO() || Binary.isMachOUniversalBinary())
return macho2yaml(outs(), Binary);
// TODO: If this is an archive, then burst it and dump each entry
if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
return dumpObject(*Obj);
return obj2yaml_error::unrecognized_file_format;
}
cl::opt<std::string> InputFilename(cl::Positional, cl::desc("<input file>"),
cl::init("-"));
int main(int argc, char *argv[]) {
cl::ParseCommandLineOptions(argc, argv);
sys::PrintStackTraceOnErrorSignal(argv[0]);
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
if (std::error_code EC = dumpInput(InputFilename)) {
errs() << "Error: '" << EC.message() << "'\n";
return 1;
}
return 0;
}