llvm/bolt/lib/Passes/PLTCall.cpp

//===- bolt/Passes/PLTCall.h - PLT call optimization ----------------------===//
//
// 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 implements the PLTCall class, which replaces calls to PLT entries
// with indirect calls against GOT.
//
//===----------------------------------------------------------------------===//

#include "bolt/Passes/PLTCall.h"
#include "llvm/Support/CommandLine.h"

#define DEBUG_TYPE …

usingnamespacellvm;

namespace opts {

extern cl::OptionCategory BoltOptCategory;

cl::opt<bolt::PLTCall::OptType>
PLT("plt",
  cl::desc("optimize PLT calls (requires linking with -znow)"),
  cl::init(bolt::PLTCall::OT_NONE),
  cl::values(clEnumValN(bolt::PLTCall::OT_NONE,
      "none",
      "do not optimize PLT calls"),
    clEnumValN(bolt::PLTCall::OT_HOT,
      "hot",
      "optimize executed (hot) PLT calls"),
    clEnumValN(bolt::PLTCall::OT_ALL,
      "all",
      "optimize all PLT calls")),
  cl::ZeroOrMore,
  cl::cat(BoltOptCategory));

}

namespace llvm {
namespace bolt {

Error PLTCall::runOnFunctions(BinaryContext &BC) { … }

} // namespace bolt
} // namespace llvm