1 //===- OffloadEmitter.cpp -------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/Object/OffloadBinary.h" 10 #include "llvm/ObjectYAML/OffloadYAML.h" 11 #include "llvm/ObjectYAML/yaml2obj.h" 12 #include "llvm/Support/Error.h" 13 #include "llvm/Support/raw_ostream.h" 14 15 using namespace llvm; 16 using namespace OffloadYAML; 17 18 namespace llvm { 19 namespace yaml { 20 21 bool yaml2offload(Binary &Doc, raw_ostream &Out, ErrorHandler EH) { 22 for (const auto &Member : Doc.Members) { 23 object::OffloadBinary::OffloadingImage Image{}; 24 if (Member.ImageKind) 25 Image.TheImageKind = *Member.ImageKind; 26 if (Member.OffloadKind) 27 Image.TheOffloadKind = *Member.OffloadKind; 28 if (Member.Flags) 29 Image.Flags = *Member.Flags; 30 31 if (Member.StringEntries) 32 for (const auto &Entry : *Member.StringEntries) 33 Image.StringData[Entry.Key] = Entry.Value; 34 35 SmallVector<char, 1024> Data; 36 raw_svector_ostream OS(Data); 37 if (Member.Content) 38 Member.Content->writeAsBinary(OS); 39 Image.Image = MemoryBuffer::getMemBufferCopy(OS.str()); 40 41 std::unique_ptr<MemoryBuffer> Binary = object::OffloadBinary::write(Image); 42 43 // Copy the data to a new buffer so we can modify the bytes directly. 44 SmallVector<char> NewBuffer; 45 std::copy(Binary->getBufferStart(), Binary->getBufferEnd(), 46 std::back_inserter(NewBuffer)); 47 auto *TheHeader = 48 reinterpret_cast<object::OffloadBinary::Header *>(&NewBuffer[0]); 49 if (Doc.Version) 50 TheHeader->Version = *Doc.Version; 51 if (Doc.Size) 52 TheHeader->Size = *Doc.Size; 53 if (Doc.EntryOffset) 54 TheHeader->EntryOffset = *Doc.EntryOffset; 55 if (Doc.EntrySize) 56 TheHeader->EntrySize = *Doc.EntrySize; 57 58 Out.write(NewBuffer.begin(), NewBuffer.size()); 59 } 60 61 return true; 62 } 63 64 } // namespace yaml 65 } // namespace llvm 66