aboutsummaryrefslogtreecommitdiff
path: root/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp')
-rw-r--r--contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp61
1 files changed, 61 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp b/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp
new file mode 100644
index 000000000000..be8c32d5b294
--- /dev/null
+++ b/contrib/llvm-project/llvm/lib/DebugInfo/CodeView/DebugFrameDataSubsection.cpp
@@ -0,0 +1,61 @@
+//===- DebugFrameDataSubsection.cpp -----------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/DebugInfo/CodeView/DebugFrameDataSubsection.h"
+#include "llvm/DebugInfo/CodeView/CodeViewError.h"
+
+using namespace llvm;
+using namespace llvm::codeview;
+
+Error DebugFrameDataSubsectionRef::initialize(BinaryStreamReader Reader) {
+ if (Reader.bytesRemaining() % sizeof(FrameData) != 0) {
+ if (auto EC = Reader.readObject(RelocPtr))
+ return EC;
+ }
+
+ if (Reader.bytesRemaining() % sizeof(FrameData) != 0)
+ return make_error<CodeViewError>(cv_error_code::corrupt_record,
+ "Invalid frame data record format!");
+
+ uint32_t Count = Reader.bytesRemaining() / sizeof(FrameData);
+ if (auto EC = Reader.readArray(Frames, Count))
+ return EC;
+ return Error::success();
+}
+
+Error DebugFrameDataSubsectionRef::initialize(BinaryStreamRef Section) {
+ BinaryStreamReader Reader(Section);
+ return initialize(Reader);
+}
+
+uint32_t DebugFrameDataSubsection::calculateSerializedSize() const {
+ uint32_t Size = sizeof(FrameData) * Frames.size();
+ if (IncludeRelocPtr)
+ Size += sizeof(uint32_t);
+ return Size;
+}
+
+Error DebugFrameDataSubsection::commit(BinaryStreamWriter &Writer) const {
+ if (IncludeRelocPtr) {
+ if (auto EC = Writer.writeInteger<uint32_t>(0))
+ return EC;
+ }
+
+ std::vector<FrameData> SortedFrames(Frames.begin(), Frames.end());
+ std::sort(SortedFrames.begin(), SortedFrames.end(),
+ [](const FrameData &LHS, const FrameData &RHS) {
+ return LHS.RvaStart < RHS.RvaStart;
+ });
+ if (auto EC = Writer.writeArray(makeArrayRef(SortedFrames)))
+ return EC;
+ return Error::success();
+}
+
+void DebugFrameDataSubsection::addFrameData(const FrameData &Frame) {
+ Frames.push_back(Frame);
+}