mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
25 lines
377 B
C++
25 lines
377 B
C++
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Arch/SmapDisabler.h>
|
|
|
|
#include <Kernel/Arch/x86_64/ASM_wrapper.h>
|
|
|
|
namespace Kernel {
|
|
|
|
SmapDisabler::SmapDisabler()
|
|
: m_flags(cpu_flags())
|
|
{
|
|
stac();
|
|
}
|
|
|
|
SmapDisabler::~SmapDisabler()
|
|
{
|
|
if (!(m_flags & 0x40000))
|
|
clac();
|
|
}
|
|
|
|
}
|