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1//===- DebugCrossExSubsection.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-exception6//7//===----------------------------------------------------------------------===//8 9#include "llvm/DebugInfo/CodeView/DebugCrossExSubsection.h"10#include "llvm/DebugInfo/CodeView/CodeViewError.h"11#include "llvm/Support/BinaryStreamReader.h"12#include "llvm/Support/BinaryStreamWriter.h"13#include "llvm/Support/Error.h"14#include <cstdint>15 16using namespace llvm;17using namespace llvm::codeview;18 19Error DebugCrossModuleExportsSubsectionRef::initialize(20    BinaryStreamReader Reader) {21  if (Reader.bytesRemaining() % sizeof(CrossModuleExport) != 0)22    return make_error<CodeViewError>(23        cv_error_code::corrupt_record,24        "Cross Scope Exports section is an invalid size!");25 26  uint32_t Size = Reader.bytesRemaining() / sizeof(CrossModuleExport);27  return Reader.readArray(References, Size);28}29 30Error DebugCrossModuleExportsSubsectionRef::initialize(BinaryStreamRef Stream) {31  BinaryStreamReader Reader(Stream);32  return initialize(Reader);33}34 35void DebugCrossModuleExportsSubsection::addMapping(uint32_t Local,36                                                   uint32_t Global) {37  Mappings[Local] = Global;38}39 40uint32_t DebugCrossModuleExportsSubsection::calculateSerializedSize() const {41  return Mappings.size() * sizeof(CrossModuleExport);42}43 44Error DebugCrossModuleExportsSubsection::commit(45    BinaryStreamWriter &Writer) const {46  for (const auto &M : Mappings) {47    if (auto EC = Writer.writeInteger(M.first))48      return EC;49    if (auto EC = Writer.writeInteger(M.second))50      return EC;51  }52  return Error::success();53}54