llvm/llvm/tools/llvm-xray/xray-extract.cpp

//===- xray-extract.cpp: XRay Instrumentation Map Extraction --------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Implementation of the xray-extract.h interface.
//
// FIXME: Support other XRay-instrumented binary formats other than ELF.
//
//===----------------------------------------------------------------------===//


#include "func-id-helper.h"
#include "xray-registry.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/XRay/InstrumentationMap.h"

usingnamespacellvm;
usingnamespacellvm::xray;
usingnamespacellvm::yaml;

// llvm-xray extract
// ----------------------------------------------------------------------------
static cl::SubCommand Extract("extract", "Extract instrumentation maps");
static cl::opt<std::string> ExtractInput(cl::Positional,
                                         cl::desc("<input file>"), cl::Required,
                                         cl::sub(Extract));
static cl::opt<std::string>
    ExtractOutput("output", cl::value_desc("output file"), cl::init("-"),
                  cl::desc("output file; use '-' for stdout"),
                  cl::sub(Extract));
static cl::alias ExtractOutput2("o", cl::aliasopt(ExtractOutput),
                                cl::desc("Alias for -output"));
static cl::opt<bool> ExtractSymbolize("symbolize", cl::value_desc("symbolize"),
                                      cl::init(false),
                                      cl::desc("symbolize functions"),
                                      cl::sub(Extract));
static cl::alias ExtractSymbolize2("s", cl::aliasopt(ExtractSymbolize),
                                   cl::desc("alias for -symbolize"));
static cl::opt<bool> Demangle("demangle",
                              cl::desc("demangle symbols (default)"),
                              cl::sub(Extract));
static cl::opt<bool> NoDemangle("no-demangle",
                                cl::desc("don't demangle symbols"),
                                cl::sub(Extract));

namespace {

void exportAsYAML(const InstrumentationMap &Map, raw_ostream &OS,
                  FuncIdConversionHelper &FH) { … }

} // namespace

static CommandRegistration Unused(&Extract, []() -> Error { … });