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-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "llvm/DebugInfo/CodeView/DebugCrossExSubsection.h"
10#include "llvm/DebugInfo/CodeView/CodeViewError.h"
11#include "llvm/Support/BinaryStreamWriter.h"
12#include "llvm/Support/Error.h"
13#include <cstdint>
14
15using namespace llvm;
16using namespace llvm::codeview;
17
18Error DebugCrossModuleExportsSubsectionRef::initialize(
19    BinaryStreamReader Reader) {
20  if (Reader.bytesRemaining() % sizeof(CrossModuleExport) != 0)
21    return make_error<CodeViewError>(
22        cv_error_code::corrupt_record,
23        "Cross Scope Exports section is an invalid size!");
24
25  uint32_t Size = Reader.bytesRemaining() / sizeof(CrossModuleExport);
26  return Reader.readArray(References, Size);
27}
28
29Error DebugCrossModuleExportsSubsectionRef::initialize(BinaryStreamRef Stream) {
30  BinaryStreamReader Reader(Stream);
31  return initialize(Reader);
32}
33
34void DebugCrossModuleExportsSubsection::addMapping(uint32_t Local,
35                                                   uint32_t Global) {
36  Mappings[Local] = Global;
37}
38
39uint32_t DebugCrossModuleExportsSubsection::calculateSerializedSize() const {
40  return Mappings.size() * sizeof(CrossModuleExport);
41}
42
43Error DebugCrossModuleExportsSubsection::commit(
44    BinaryStreamWriter &Writer) const {
45  for (const auto &M : Mappings) {
46    if (auto EC = Writer.writeInteger(M.first))
47      return EC;
48    if (auto EC = Writer.writeInteger(M.second))
49      return EC;
50  }
51  return Error::success();
52}
53