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548f2b6e8f
Owning the buffer is somewhat inflexible. Some Binaries have sub Binaries (like Archive) and we had to create dummy buffers just to handle that. It is also a bad fit for IRObjectFile where the Module wants to own the buffer too. Keeping this ownership would make supporting IR inside native objects particularly painful. This patch focuses in lib/Object. If something elsewhere used to own an Binary, now it also owns a MemoryBuffer. This patch introduces a few new types. * MemoryBufferRef. This is just a pair of StringRefs for the data and name. This is to MemoryBuffer as StringRef is to std::string. * OwningBinary. A combination of Binary and a MemoryBuffer. This is needed for convenience functions that take a filename and return both the buffer and the Binary using that buffer. The C api now uses OwningBinary to avoid any change in semantics. I will start a new thread to see if we want to change it and how. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216002 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
//===------ utils/obj2yaml.cpp - obj2yaml conversion tool -------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "Error.h"
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#include "obj2yaml.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/Support/CommandLine.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Signals.h"
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using namespace llvm;
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using namespace llvm::object;
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static std::error_code dumpObject(const ObjectFile &Obj) {
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if (Obj.isCOFF())
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return coff2yaml(outs(), cast<COFFObjectFile>(Obj));
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if (Obj.isELF())
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return elf2yaml(outs(), Obj);
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return obj2yaml_error::unsupported_obj_file_format;
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}
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static std::error_code dumpInput(StringRef File) {
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if (File != "-" && !sys::fs::exists(File))
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return obj2yaml_error::file_not_found;
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ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
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if (std::error_code EC = BinaryOrErr.getError())
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return EC;
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Binary &Binary = *BinaryOrErr.get().getBinary();
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// TODO: If this is an archive, then burst it and dump each entry
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if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
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return dumpObject(*Obj);
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return obj2yaml_error::unrecognized_file_format;
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}
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cl::opt<std::string> InputFilename(cl::Positional, cl::desc("<input file>"),
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cl::init("-"));
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int main(int argc, char *argv[]) {
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cl::ParseCommandLineOptions(argc, argv);
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sys::PrintStackTraceOnErrorSignal();
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PrettyStackTraceProgram X(argc, argv);
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llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
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if (std::error_code EC = dumpInput(InputFilename)) {
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errs() << "Error: '" << EC.message() << "'\n";
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return 1;
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}
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return 0;
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}
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