From 0b57cec536236d46e3dba9bd041533462f33dbb7 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Fri, 20 Dec 2019 19:53:05 +0000 Subject: Move all sources from the llvm project into contrib/llvm-project. This uses the new layout of the upstream repository, which was recently migrated to GitHub, and converted into a "monorepo". That is, most of the earlier separate sub-projects with their own branches and tags were consolidated into one top-level directory, and are now branched and tagged together. Updating the vendor area to match this layout is next. --- contrib/llvm-project/llvm/lib/Object/Binary.cpp | 108 ++++++++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 contrib/llvm-project/llvm/lib/Object/Binary.cpp (limited to 'contrib/llvm-project/llvm/lib/Object/Binary.cpp') diff --git a/contrib/llvm-project/llvm/lib/Object/Binary.cpp b/contrib/llvm-project/llvm/lib/Object/Binary.cpp new file mode 100644 index 000000000000..a953c1d8cb80 --- /dev/null +++ b/contrib/llvm-project/llvm/lib/Object/Binary.cpp @@ -0,0 +1,108 @@ +//===- Binary.cpp - A generic binary file ---------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file defines the Binary class. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Object/Binary.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/BinaryFormat/Magic.h" +#include "llvm/Object/Archive.h" +#include "llvm/Object/Error.h" +#include "llvm/Object/MachOUniversal.h" +#include "llvm/Object/Minidump.h" +#include "llvm/Object/ObjectFile.h" +#include "llvm/Object/WindowsResource.h" +#include "llvm/Support/Error.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/ErrorOr.h" +#include "llvm/Support/FileSystem.h" +#include "llvm/Support/MemoryBuffer.h" +#include +#include +#include + +using namespace llvm; +using namespace object; + +Binary::~Binary() = default; + +Binary::Binary(unsigned int Type, MemoryBufferRef Source) + : TypeID(Type), Data(Source) {} + +StringRef Binary::getData() const { return Data.getBuffer(); } + +StringRef Binary::getFileName() const { return Data.getBufferIdentifier(); } + +MemoryBufferRef Binary::getMemoryBufferRef() const { return Data; } + +Expected> object::createBinary(MemoryBufferRef Buffer, + LLVMContext *Context) { + file_magic Type = identify_magic(Buffer.getBuffer()); + + switch (Type) { + case file_magic::archive: + return Archive::create(Buffer); + case file_magic::elf: + case file_magic::elf_relocatable: + case file_magic::elf_executable: + case file_magic::elf_shared_object: + case file_magic::elf_core: + case file_magic::macho_object: + case file_magic::macho_executable: + case file_magic::macho_fixed_virtual_memory_shared_lib: + case file_magic::macho_core: + case file_magic::macho_preload_executable: + case file_magic::macho_dynamically_linked_shared_lib: + case file_magic::macho_dynamic_linker: + case file_magic::macho_bundle: + case file_magic::macho_dynamically_linked_shared_lib_stub: + case file_magic::macho_dsym_companion: + case file_magic::macho_kext_bundle: + case file_magic::coff_object: + case file_magic::coff_import_library: + case file_magic::pecoff_executable: + case file_magic::bitcode: + case file_magic::xcoff_object_32: + case file_magic::xcoff_object_64: + case file_magic::wasm_object: + return ObjectFile::createSymbolicFile(Buffer, Type, Context); + case file_magic::macho_universal_binary: + return MachOUniversalBinary::create(Buffer); + case file_magic::windows_resource: + return WindowsResource::createWindowsResource(Buffer); + case file_magic::pdb: + // PDB does not support the Binary interface. + return errorCodeToError(object_error::invalid_file_type); + case file_magic::unknown: + case file_magic::coff_cl_gl_object: + // Unrecognized object file format. + return errorCodeToError(object_error::invalid_file_type); + case file_magic::minidump: + return MinidumpFile::create(Buffer); + } + llvm_unreachable("Unexpected Binary File Type"); +} + +Expected> object::createBinary(StringRef Path) { + ErrorOr> FileOrErr = + MemoryBuffer::getFileOrSTDIN(Path, /*FileSize=*/-1, + /*RequiresNullTerminator=*/false); + if (std::error_code EC = FileOrErr.getError()) + return errorCodeToError(EC); + std::unique_ptr &Buffer = FileOrErr.get(); + + Expected> BinOrErr = + createBinary(Buffer->getMemBufferRef()); + if (!BinOrErr) + return BinOrErr.takeError(); + std::unique_ptr &Bin = BinOrErr.get(); + + return OwningBinary(std::move(Bin), std::move(Buffer)); +} -- cgit v1.2.3