mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-11 01:06:01 +03:00
66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <Kernel/CoreDump.h>
|
|
#include <Kernel/FileSystem/FileDescription.h>
|
|
#include <Kernel/FileSystem/VirtualFileSystem.h>
|
|
#include <Kernel/PerformanceEventBuffer.h>
|
|
#include <Kernel/Process.h>
|
|
|
|
namespace Kernel {
|
|
|
|
int Process::sys$profiling_enable(pid_t pid)
|
|
{
|
|
REQUIRE_NO_PROMISES;
|
|
ScopedSpinLock lock(g_processes_lock);
|
|
auto process = Process::from_pid(pid);
|
|
if (!process)
|
|
return -ESRCH;
|
|
if (process->is_dead())
|
|
return -ESRCH;
|
|
if (!is_superuser() && process->uid() != m_euid)
|
|
return -EPERM;
|
|
process->ensure_perf_events();
|
|
process->set_profiling(true);
|
|
return 0;
|
|
}
|
|
|
|
int Process::sys$profiling_disable(pid_t pid)
|
|
{
|
|
ScopedSpinLock lock(g_processes_lock);
|
|
auto process = Process::from_pid(pid);
|
|
if (!process)
|
|
return -ESRCH;
|
|
if (!is_superuser() && process->uid() != m_euid)
|
|
return -EPERM;
|
|
if (!process->is_profiling())
|
|
return -EINVAL;
|
|
process->set_profiling(false);
|
|
return 0;
|
|
}
|
|
|
|
}
|