10b57cec5SDimitry Andric //===- DebugCrossExSubsection.cpp -----------------------------------------===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric 90b57cec5SDimitry Andric #include "llvm/DebugInfo/CodeView/DebugCrossExSubsection.h" 100b57cec5SDimitry Andric #include "llvm/DebugInfo/CodeView/CodeViewError.h" 1181ad6265SDimitry Andric #include "llvm/Support/BinaryStreamReader.h" 120b57cec5SDimitry Andric #include "llvm/Support/BinaryStreamWriter.h" 130b57cec5SDimitry Andric #include "llvm/Support/Error.h" 140b57cec5SDimitry Andric #include <cstdint> 150b57cec5SDimitry Andric 160b57cec5SDimitry Andric using namespace llvm; 170b57cec5SDimitry Andric using namespace llvm::codeview; 180b57cec5SDimitry Andric initialize(BinaryStreamReader Reader)190b57cec5SDimitry AndricError DebugCrossModuleExportsSubsectionRef::initialize( 200b57cec5SDimitry Andric BinaryStreamReader Reader) { 210b57cec5SDimitry Andric if (Reader.bytesRemaining() % sizeof(CrossModuleExport) != 0) 220b57cec5SDimitry Andric return make_error<CodeViewError>( 230b57cec5SDimitry Andric cv_error_code::corrupt_record, 240b57cec5SDimitry Andric "Cross Scope Exports section is an invalid size!"); 250b57cec5SDimitry Andric 260b57cec5SDimitry Andric uint32_t Size = Reader.bytesRemaining() / sizeof(CrossModuleExport); 270b57cec5SDimitry Andric return Reader.readArray(References, Size); 280b57cec5SDimitry Andric } 290b57cec5SDimitry Andric initialize(BinaryStreamRef Stream)300b57cec5SDimitry AndricError DebugCrossModuleExportsSubsectionRef::initialize(BinaryStreamRef Stream) { 310b57cec5SDimitry Andric BinaryStreamReader Reader(Stream); 320b57cec5SDimitry Andric return initialize(Reader); 330b57cec5SDimitry Andric } 340b57cec5SDimitry Andric addMapping(uint32_t Local,uint32_t Global)350b57cec5SDimitry Andricvoid DebugCrossModuleExportsSubsection::addMapping(uint32_t Local, 360b57cec5SDimitry Andric uint32_t Global) { 370b57cec5SDimitry Andric Mappings[Local] = Global; 380b57cec5SDimitry Andric } 390b57cec5SDimitry Andric calculateSerializedSize() const400b57cec5SDimitry Andricuint32_t DebugCrossModuleExportsSubsection::calculateSerializedSize() const { 410b57cec5SDimitry Andric return Mappings.size() * sizeof(CrossModuleExport); 420b57cec5SDimitry Andric } 430b57cec5SDimitry Andric commit(BinaryStreamWriter & Writer) const440b57cec5SDimitry AndricError DebugCrossModuleExportsSubsection::commit( 450b57cec5SDimitry Andric BinaryStreamWriter &Writer) const { 460b57cec5SDimitry Andric for (const auto &M : Mappings) { 470b57cec5SDimitry Andric if (auto EC = Writer.writeInteger(M.first)) 480b57cec5SDimitry Andric return EC; 490b57cec5SDimitry Andric if (auto EC = Writer.writeInteger(M.second)) 500b57cec5SDimitry Andric return EC; 510b57cec5SDimitry Andric } 520b57cec5SDimitry Andric return Error::success(); 530b57cec5SDimitry Andric } 54