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f188975fc7
Summary: Tapi files are YAML files that start with the !tapi tag. The only execption are TBD v1 files, which don't have a tag. In that case we have to scan a little further and check if the first key "archs" exists. This is the first patch in a series of patches to add libObject support for text-based dynamic library (.tbd) files. This patch is practically exactly the same as D37820, that was never pushed to master, and is needed for future commits related to reading tbd files for llvm-nm Reviewers: ributzka, steven_wu, bollu, espindola, jfb, shafik, jdoerfert Reviewed By: steven_wu Subscribers: dexonsmith, llvm-commits Tags: #llvm, #clang, #sanitizers, #lldb, #libc, #openmp Differential Revision: https://reviews.llvm.org/D66149 llvm-svn: 369579
101 lines
3.4 KiB
C++
101 lines
3.4 KiB
C++
//===- SymbolicFile.cpp - Interface that only provides symbols ------------===//
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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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//
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// This file defines a file format independent SymbolicFile class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/SymbolicFile.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/BinaryFormat/Magic.h"
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#include "llvm/Object/COFFImportFile.h"
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#include "llvm/Object/Error.h"
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#include "llvm/Object/IRObjectFile.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ErrorOr.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include <algorithm>
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#include <memory>
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using namespace llvm;
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using namespace object;
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SymbolicFile::SymbolicFile(unsigned int Type, MemoryBufferRef Source)
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: Binary(Type, Source) {}
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SymbolicFile::~SymbolicFile() = default;
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Expected<std::unique_ptr<SymbolicFile>>
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SymbolicFile::createSymbolicFile(MemoryBufferRef Object, file_magic Type,
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LLVMContext *Context) {
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StringRef Data = Object.getBuffer();
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if (Type == file_magic::unknown)
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Type = identify_magic(Data);
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switch (Type) {
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case file_magic::bitcode:
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if (Context)
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return IRObjectFile::create(Object, *Context);
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LLVM_FALLTHROUGH;
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case file_magic::unknown:
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case file_magic::archive:
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case file_magic::coff_cl_gl_object:
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case file_magic::macho_universal_binary:
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case file_magic::windows_resource:
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case file_magic::pdb:
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case file_magic::minidump:
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case file_magic::tapi_file:
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return errorCodeToError(object_error::invalid_file_type);
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case file_magic::elf:
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case file_magic::elf_executable:
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case file_magic::elf_shared_object:
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case file_magic::elf_core:
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case file_magic::macho_executable:
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case file_magic::macho_fixed_virtual_memory_shared_lib:
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case file_magic::macho_core:
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case file_magic::macho_preload_executable:
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case file_magic::macho_dynamically_linked_shared_lib:
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case file_magic::macho_dynamic_linker:
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case file_magic::macho_bundle:
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case file_magic::macho_dynamically_linked_shared_lib_stub:
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case file_magic::macho_dsym_companion:
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case file_magic::macho_kext_bundle:
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case file_magic::pecoff_executable:
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case file_magic::xcoff_object_32:
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case file_magic::xcoff_object_64:
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case file_magic::wasm_object:
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return ObjectFile::createObjectFile(Object, Type);
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case file_magic::coff_import_library:
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return std::unique_ptr<SymbolicFile>(new COFFImportFile(Object));
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case file_magic::elf_relocatable:
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case file_magic::macho_object:
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case file_magic::coff_object: {
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Expected<std::unique_ptr<ObjectFile>> Obj =
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ObjectFile::createObjectFile(Object, Type);
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if (!Obj || !Context)
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return std::move(Obj);
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Expected<MemoryBufferRef> BCData =
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IRObjectFile::findBitcodeInObject(*Obj->get());
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if (!BCData) {
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consumeError(BCData.takeError());
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return std::move(Obj);
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}
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return IRObjectFile::create(
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MemoryBufferRef(BCData->getBuffer(), Object.getBufferIdentifier()),
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*Context);
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}
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}
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llvm_unreachable("Unexpected Binary File Type");
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}
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