2010-11-15 03:21:41 +00:00
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//===- ObjectFile.cpp - File format independent object 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 a file format independent ObjectFile class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/ObjectFile.h"
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2010-12-16 03:29:14 +00:00
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#include "llvm/ADT/OwningPtr.h"
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2010-11-15 03:21:41 +00:00
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MemoryBuffer.h"
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2010-11-29 18:16:10 +00:00
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#include "llvm/Support/Path.h"
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2010-12-09 17:36:48 +00:00
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#include "llvm/Support/system_error.h"
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2010-11-15 03:21:41 +00:00
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2010-11-16 01:06:51 +00:00
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using namespace llvm;
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using namespace object;
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2010-11-15 03:21:41 +00:00
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2011-12-20 02:50:00 +00:00
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void ObjectFile::anchor() { }
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2013-04-07 16:40:00 +00:00
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ObjectFile::ObjectFile(unsigned int Type, MemoryBuffer *source)
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2011-06-25 17:54:50 +00:00
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: Binary(Type, source) {
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2010-11-15 03:21:41 +00:00
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}
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2013-04-29 22:24:22 +00:00
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error_code ObjectFile::getSymbolAlignment(DataRefImpl DRI,
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uint32_t &Result) const {
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Result = 0;
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return object_error::success;
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}
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2013-05-30 03:05:14 +00:00
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section_iterator ObjectFile::getRelocatedSection(DataRefImpl Sec) const {
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return section_iterator(SectionRef(Sec, this));
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}
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2010-11-15 03:21:41 +00:00
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ObjectFile *ObjectFile::createObjectFile(MemoryBuffer *Object) {
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if (!Object || Object->getBufferSize() < 64)
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return 0;
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sys::LLVMFileType type = sys::IdentifyFileType(Object->getBufferStart(),
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static_cast<unsigned>(Object->getBufferSize()));
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switch (type) {
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case sys::Unknown_FileType:
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return 0;
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2010-11-15 03:21:41 +00:00
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case sys::ELF_Relocatable_FileType:
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case sys::ELF_Executable_FileType:
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case sys::ELF_SharedObject_FileType:
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case sys::ELF_Core_FileType:
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2011-01-20 06:38:47 +00:00
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return createELFObjectFile(Object);
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2010-11-15 03:21:41 +00:00
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case sys::Mach_O_Object_FileType:
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case sys::Mach_O_Executable_FileType:
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case sys::Mach_O_FixedVirtualMemorySharedLib_FileType:
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case sys::Mach_O_Core_FileType:
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2010-11-17 00:43:43 +00:00
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case sys::Mach_O_PreloadExecutable_FileType:
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case sys::Mach_O_DynamicallyLinkedSharedLib_FileType:
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case sys::Mach_O_DynamicLinker_FileType:
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case sys::Mach_O_Bundle_FileType:
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case sys::Mach_O_DynamicallyLinkedSharedLibStub_FileType:
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2011-09-14 00:39:22 +00:00
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case sys::Mach_O_DSYMCompanion_FileType:
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2011-04-22 03:50:50 +00:00
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return createMachOObjectFile(Object);
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case sys::COFF_FileType:
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return createCOFFObjectFile(Object);
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default:
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llvm_unreachable("Unexpected Object File Type");
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}
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}
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2010-11-16 01:06:51 +00:00
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ObjectFile *ObjectFile::createObjectFile(StringRef ObjectPath) {
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2010-12-16 03:29:14 +00:00
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OwningPtr<MemoryBuffer> File;
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2011-12-25 01:20:19 +00:00
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if (MemoryBuffer::getFile(ObjectPath, File))
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2010-12-16 03:29:14 +00:00
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return NULL;
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return createObjectFile(File.take());
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2010-11-15 03:21:41 +00:00
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}
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