102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
//===------ utils/obj2yaml.cpp - obj2yaml conversion tool -----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "obj2yaml.h"
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#include "llvm/BinaryFormat/Magic.h"
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/COFF.h"
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#include "llvm/Object/Minidump.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Errc.h"
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#include "llvm/Support/InitLLVM.h"
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using namespace llvm;
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using namespace llvm::object;
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static cl::opt<std::string>
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InputFilename(cl::Positional, cl::desc("<input file>"), cl::init("-"));
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static cl::bits<RawSegments> RawSegment(
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"raw-segment",
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cl::desc("Mach-O: dump the raw contents of the listed segments instead of "
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"parsing them:"),
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cl::values(clEnumVal(data, "__DATA"), clEnumVal(linkedit, "__LINKEDIT")));
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static Error dumpObject(const ObjectFile &Obj) {
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if (Obj.isCOFF())
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return errorCodeToError(coff2yaml(outs(), cast<COFFObjectFile>(Obj)));
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if (Obj.isXCOFF())
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return xcoff2yaml(outs(), cast<XCOFFObjectFile>(Obj));
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if (Obj.isELF())
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return elf2yaml(outs(), Obj);
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if (Obj.isWasm())
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return errorCodeToError(wasm2yaml(outs(), cast<WasmObjectFile>(Obj)));
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llvm_unreachable("unexpected object file format");
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}
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static Error dumpInput(StringRef File) {
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ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
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MemoryBuffer::getFileOrSTDIN(File, /*IsText=*/false,
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/*RequiresNullTerminator=*/false);
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if (std::error_code EC = FileOrErr.getError())
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return errorCodeToError(EC);
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std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get();
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MemoryBufferRef MemBuf = Buffer->getMemBufferRef();
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switch (identify_magic(MemBuf.getBuffer())) {
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case file_magic::archive:
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return archive2yaml(outs(), MemBuf);
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case file_magic::dxcontainer_object:
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return dxcontainer2yaml(outs(), MemBuf);
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default:
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break;
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}
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Expected<std::unique_ptr<Binary>> BinOrErr =
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createBinary(MemBuf, /*Context=*/nullptr);
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if (!BinOrErr)
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return BinOrErr.takeError();
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Binary &Binary = *BinOrErr->get();
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// Universal MachO is not a subclass of ObjectFile, so it needs to be handled
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// here with the other binary types.
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if (Binary.isMachO() || Binary.isMachOUniversalBinary())
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return macho2yaml(outs(), Binary, RawSegment.getBits());
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if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
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return dumpObject(*Obj);
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if (MinidumpFile *Minidump = dyn_cast<MinidumpFile>(&Binary))
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return minidump2yaml(outs(), *Minidump);
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return Error::success();
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}
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static void reportError(StringRef Input, Error Err) {
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if (Input == "-")
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Input = "<stdin>";
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std::string ErrMsg;
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raw_string_ostream OS(ErrMsg);
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logAllUnhandledErrors(std::move(Err), OS);
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OS.flush();
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errs() << "Error reading file: " << Input << ": " << ErrMsg;
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errs().flush();
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}
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int main(int argc, char *argv[]) {
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InitLLVM X(argc, argv);
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cl::ParseCommandLineOptions(argc, argv);
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if (Error Err = dumpInput(InputFilename)) {
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reportError(InputFilename, std::move(Err));
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return 1;
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}
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return 0;
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}
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