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https://github.com/c64scene-ar/llvm-6502.git
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95689f0845
createBinary documented that it destroyed the parameter in error cases, though by observation it does not. By passing the unique_ptr by value rather than lvalue reference, callers are now explicit about passing ownership and the function implements the documented contract. Remove the explicit documentation, since now the behavior cannot be anything other than what was documented, so it's redundant. Also drops a unique_ptr::release in llvm-nm that was always run on a null unique_ptr anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213557 91177308-0d34-0410-b5e6-96231b3b80d8
84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
//===- Binary.cpp - A generic binary file -----------------------*- 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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//
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// This file defines the Binary class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/Binary.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Path.h"
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// Include headers for createBinary.
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/MachOUniversal.h"
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#include "llvm/Object/ObjectFile.h"
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using namespace llvm;
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using namespace object;
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Binary::~Binary() {}
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Binary::Binary(unsigned int Type, std::unique_ptr<MemoryBuffer> Source)
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: TypeID(Type), Data(std::move(Source)) {}
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StringRef Binary::getData() const {
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return Data->getBuffer();
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}
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StringRef Binary::getFileName() const {
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return Data->getBufferIdentifier();
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}
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ErrorOr<Binary *> object::createBinary(std::unique_ptr<MemoryBuffer> Buffer,
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LLVMContext *Context) {
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sys::fs::file_magic Type = sys::fs::identify_magic(Buffer->getBuffer());
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switch (Type) {
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case sys::fs::file_magic::archive:
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return Archive::create(std::move(Buffer));
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case sys::fs::file_magic::elf_relocatable:
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case sys::fs::file_magic::elf_executable:
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case sys::fs::file_magic::elf_shared_object:
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case sys::fs::file_magic::elf_core:
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case sys::fs::file_magic::macho_object:
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case sys::fs::file_magic::macho_executable:
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case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib:
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case sys::fs::file_magic::macho_core:
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case sys::fs::file_magic::macho_preload_executable:
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case sys::fs::file_magic::macho_dynamically_linked_shared_lib:
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case sys::fs::file_magic::macho_dynamic_linker:
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case sys::fs::file_magic::macho_bundle:
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case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
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case sys::fs::file_magic::macho_dsym_companion:
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case sys::fs::file_magic::coff_object:
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case sys::fs::file_magic::coff_import_library:
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case sys::fs::file_magic::pecoff_executable:
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case sys::fs::file_magic::bitcode:
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return ObjectFile::createSymbolicFile(Buffer, Type, Context);
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case sys::fs::file_magic::macho_universal_binary:
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return MachOUniversalBinary::create(std::move(Buffer));
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case sys::fs::file_magic::unknown:
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case sys::fs::file_magic::windows_resource:
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// Unrecognized object file format.
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return object_error::invalid_file_type;
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}
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llvm_unreachable("Unexpected Binary File Type");
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}
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ErrorOr<Binary *> object::createBinary(StringRef Path) {
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ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
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MemoryBuffer::getFileOrSTDIN(Path);
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if (std::error_code EC = FileOrErr.getError())
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return EC;
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return createBinary(std::move(*FileOrErr));
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}
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