/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/lib/DebugInfo/CodeView/SymbolSerializer.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | //===- SymbolSerializer.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/SymbolSerializer.h" |
10 | | #include "llvm/ADT/ArrayRef.h" |
11 | | #include "llvm/DebugInfo/CodeView/SymbolRecord.h" |
12 | | #include "llvm/Support/Endian.h" |
13 | | #include "llvm/Support/Error.h" |
14 | | #include <cassert> |
15 | | #include <cstdint> |
16 | | #include <cstring> |
17 | | |
18 | | using namespace llvm; |
19 | | using namespace llvm::codeview; |
20 | | |
21 | | SymbolSerializer::SymbolSerializer(BumpPtrAllocator &Allocator, |
22 | | CodeViewContainer Container) |
23 | | : Storage(Allocator), Stream(RecordBuffer, support::little), Writer(Stream), |
24 | 1.69k | Mapping(Writer, Container) {} |
25 | | |
26 | 1.69k | Error SymbolSerializer::visitSymbolBegin(CVSymbol &Record) { |
27 | 1.69k | assert(!CurrentSymbol.hasValue() && "Already in a symbol mapping!"); |
28 | 1.69k | |
29 | 1.69k | Writer.setOffset(0); |
30 | 1.69k | |
31 | 1.69k | if (auto EC = writeRecordPrefix(Record.kind())) |
32 | 0 | return EC; |
33 | 1.69k | |
34 | 1.69k | CurrentSymbol = Record.kind(); |
35 | 1.69k | if (auto EC = Mapping.visitSymbolBegin(Record)) |
36 | 0 | return EC; |
37 | 1.69k | |
38 | 1.69k | return Error::success(); |
39 | 1.69k | } |
40 | | |
41 | 1.69k | Error SymbolSerializer::visitSymbolEnd(CVSymbol &Record) { |
42 | 1.69k | assert(CurrentSymbol.hasValue() && "Not in a symbol mapping!"); |
43 | 1.69k | |
44 | 1.69k | if (auto EC = Mapping.visitSymbolEnd(Record)) |
45 | 0 | return EC; |
46 | 1.69k | |
47 | 1.69k | uint32_t RecordEnd = Writer.getOffset(); |
48 | 1.69k | uint16_t Length = RecordEnd - 2; |
49 | 1.69k | Writer.setOffset(0); |
50 | 1.69k | if (auto EC = Writer.writeInteger(Length)) |
51 | 0 | return EC; |
52 | 1.69k | |
53 | 1.69k | uint8_t *StableStorage = Storage.Allocate<uint8_t>(RecordEnd); |
54 | 1.69k | ::memcpy(StableStorage, &RecordBuffer[0], RecordEnd); |
55 | 1.69k | Record.RecordData = ArrayRef<uint8_t>(StableStorage, RecordEnd); |
56 | 1.69k | CurrentSymbol.reset(); |
57 | 1.69k | |
58 | 1.69k | return Error::success(); |
59 | 1.69k | } |