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| //===-- test_helpers.cpp --------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This file is a part of XRay, a function call tracing system.
//
//===----------------------------------------------------------------------===//
#include "test_helpers.h"
#include "xray/xray_records.h"
#include "xray_buffer_queue.h"
#include "xray_fdr_log_writer.h"
#include <type_traits>
// TODO: Move these to llvm/include/Testing/XRay/...
namespace llvm {
namespace xray {
std::string RecordTypeAsString(RecordTypes T) {
switch (T) {
case RecordTypes::ENTER:
return "llvm::xray::RecordTypes::ENTER";
case RecordTypes::EXIT:
return "llvm::xray::RecordTypes::EXIT";
case RecordTypes::TAIL_EXIT:
return "llvm::xray::RecordTypes::TAIL_EXIT";
case RecordTypes::ENTER_ARG:
return "llvm::xray::RecordTypes::ENTER_ARG";
case RecordTypes::CUSTOM_EVENT:
return "llvm::xray::RecordTypes::CUSTOM_EVENT";
case RecordTypes::TYPED_EVENT:
return "llvm::xray::RecordTypes::TYPED_EVENT";
}
return "<UNKNOWN>";
}
void PrintTo(RecordTypes T, std::ostream *OS) {
*OS << RecordTypeAsString(T);
}
void PrintTo(const XRayRecord &R, std::ostream *OS) {
*OS << "XRayRecord { CPU = " << R.CPU
<< "; Type = " << RecordTypeAsString(R.Type) << "; FuncId = " << R.FuncId
<< "; TSC = " << R.TSC << "; TId = " << R.TId << "; PId = " << R.PId
<< " Args = " << ::testing::PrintToString(R.CallArgs) << " }";
}
void PrintTo(const Trace &T, std::ostream *OS) {
const auto &H = T.getFileHeader();
*OS << "XRay Trace:\nHeader: { Version = " << H.Version
<< "; Type = " << H.Type
<< "; ConstantTSC = " << ::testing::PrintToString(H.ConstantTSC)
<< "; NonstopTSC = " << ::testing::PrintToString(H.NonstopTSC)
<< "; CycleFrequency = " << H.CycleFrequency << "; FreeFormData = '"
<< ::testing::PrintToString(H.FreeFormData) << "' }\n";
for (const auto &R : T) {
PrintTo(R, OS);
*OS << "\n";
}
}
} // namespace xray
} // namespace llvm
namespace __xray {
std::string serialize(BufferQueue &Buffers, int32_t Version) {
std::string Serialized;
std::aligned_storage<sizeof(XRayFileHeader), alignof(XRayFileHeader)>::type
HeaderStorage;
auto *Header = reinterpret_cast<XRayFileHeader *>(&HeaderStorage);
new (Header) XRayFileHeader();
Header->Version = Version;
Header->Type = FileTypes::FDR_LOG;
Header->CycleFrequency = 3e9;
Header->ConstantTSC = 1;
Header->NonstopTSC = 1;
Serialized.append(reinterpret_cast<const char *>(&HeaderStorage),
sizeof(XRayFileHeader));
Buffers.apply([&](const BufferQueue::Buffer &B) {
auto Size = atomic_load_relaxed(B.Extents);
auto Extents =
createMetadataRecord<MetadataRecord::RecordKinds::BufferExtents>(Size);
Serialized.append(reinterpret_cast<const char *>(&Extents),
sizeof(Extents));
Serialized.append(reinterpret_cast<const char *>(B.Data), Size);
});
return Serialized;
}
} // namespace __xray
|