llvm/llvm/lib/XRay/Profile.cpp

//===- Profile.cpp - XRay Profile Abstraction -----------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Defines the XRay Profile class representing the latency profile generated by
// XRay's profiling mode.
//
//===----------------------------------------------------------------------===//
#include "llvm/XRay/Profile.h"

#include "llvm/Support/DataExtractor.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/XRay/Trace.h"
#include <deque>
#include <memory>

namespace llvm {
namespace xray {

Profile::Profile(const Profile &O) { … }

Profile &Profile::operator=(const Profile &O) { … }

namespace {

struct BlockHeader { … };

static Expected<BlockHeader> readBlockHeader(DataExtractor &Extractor,
                                             uint64_t &Offset) { … }

static Expected<std::vector<Profile::FuncID>> readPath(DataExtractor &Extractor,
                                                       uint64_t &Offset) { … }

static Expected<Profile::Data> readData(DataExtractor &Extractor,
                                        uint64_t &Offset) { … }

} // namespace

Error Profile::addBlock(Block &&B) { … }

Expected<std::vector<Profile::FuncID>> Profile::expandPath(PathID P) const { … }

Profile::PathID Profile::internPath(ArrayRef<FuncID> P) { … }

Profile mergeProfilesByThread(const Profile &L, const Profile &R) { … }

Profile mergeProfilesByStack(const Profile &L, const Profile &R) { … }

Expected<Profile> loadProfile(StringRef Filename) { … }

namespace {

struct StackEntry { … };

} // namespace

Expected<Profile> profileFromTrace(const Trace &T) { … }

} // namespace xray
} // namespace llvm