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