blob: 801ac30b82aa0b0e03e1c3290f74ed6550a155e1 [file] [log] [blame]
// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Author: Ken Chen <>
// Library support to remap process executable elf segment with hugepages.
// ReloadElfTextInHugePages() will search for an ELF executable segment,
// and remap it using hugepage.
#include <string>
#include "chromeos/chromeos_export.h"
#if defined(__clang__) || defined(__GNUC__)
#define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
namespace chromeos {
// This function will scan ELF
// segments and attempt to remap text segment from small page to hugepage.
// When this function returns, text segments that are naturally aligned on
// hugepage size will be backed by hugepages. In the event of errors, the
// remapping operation will be aborted and rolled back, e.g. they are all
// soft fail.
CHROMEOS_EXPORT extern void ReloadElfTextInHugePages(void);
} // namespace chromeos