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author | wolfbeast <mcwerewolf@gmail.com> | 2018-05-03 05:55:15 +0200 |
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committer | wolfbeast <mcwerewolf@gmail.com> | 2018-05-03 05:55:15 +0200 |
commit | 43f7a588f96aaf88e7b69441c3b50bc9c7b20df7 (patch) | |
tree | 07d9b26b2f357ee9de04fea0e5e4b8b9a1ff93a4 /security/sandbox/chromium/base/threading/platform_thread_linux.cc | |
parent | 4613b91ecac2745252c40be64e73de5ff920b02b (diff) | |
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Nuke the sandbox
Diffstat (limited to 'security/sandbox/chromium/base/threading/platform_thread_linux.cc')
-rw-r--r-- | security/sandbox/chromium/base/threading/platform_thread_linux.cc | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/security/sandbox/chromium/base/threading/platform_thread_linux.cc b/security/sandbox/chromium/base/threading/platform_thread_linux.cc deleted file mode 100644 index 4057ede94..000000000 --- a/security/sandbox/chromium/base/threading/platform_thread_linux.cc +++ /dev/null @@ -1,120 +0,0 @@ -// Copyright (c) 2012 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. - -#include "base/threading/platform_thread.h" - -#include <errno.h> -#include <sched.h> -#include <stddef.h> - -#include "base/lazy_instance.h" -#include "base/logging.h" -#include "base/threading/platform_thread_internal_posix.h" -#include "base/threading/thread_id_name_manager.h" -#include "base/tracked_objects.h" -#include "build/build_config.h" - -#if !defined(OS_NACL) -#include <pthread.h> -#include <sys/prctl.h> -#include <sys/types.h> -#include <unistd.h> -#endif - -namespace base { - -namespace internal { - -namespace { -#if !defined(OS_NACL) -const struct sched_param kRealTimePrio = {8}; -const struct sched_param kResetPrio = {0}; -#endif -} // namespace - -const ThreadPriorityToNiceValuePair kThreadPriorityToNiceValueMap[4] = { - {ThreadPriority::BACKGROUND, 10}, - {ThreadPriority::NORMAL, 0}, - {ThreadPriority::DISPLAY, -6}, - {ThreadPriority::REALTIME_AUDIO, -10}, -}; - -bool SetCurrentThreadPriorityForPlatform(ThreadPriority priority) { -#if !defined(OS_NACL) - ThreadPriority current_priority; - if (priority != ThreadPriority::REALTIME_AUDIO && - GetCurrentThreadPriorityForPlatform(¤t_priority) && - current_priority == ThreadPriority::REALTIME_AUDIO) { - // If the pthread's round-robin scheduler is already enabled, and the new - // priority will use setpriority() instead, the pthread scheduler should be - // reset to use SCHED_OTHER so that setpriority() just works. - pthread_setschedparam(pthread_self(), SCHED_OTHER, &kResetPrio); - return false; - } - return priority == ThreadPriority::REALTIME_AUDIO && - pthread_setschedparam(pthread_self(), SCHED_RR, &kRealTimePrio) == 0; -#else - return false; -#endif -} - -bool GetCurrentThreadPriorityForPlatform(ThreadPriority* priority) { -#if !defined(OS_NACL) - int maybe_sched_rr = 0; - struct sched_param maybe_realtime_prio = {0}; - if (pthread_getschedparam(pthread_self(), &maybe_sched_rr, - &maybe_realtime_prio) == 0 && - maybe_sched_rr == SCHED_RR && - maybe_realtime_prio.sched_priority == kRealTimePrio.sched_priority) { - *priority = ThreadPriority::REALTIME_AUDIO; - return true; - } -#endif - return false; -} - -} // namespace internal - -// static -void PlatformThread::SetName(const std::string& name) { - ThreadIdNameManager::GetInstance()->SetName(CurrentId(), name); - tracked_objects::ThreadData::InitializeThreadContext(name); - -#if !defined(OS_NACL) - // On linux we can get the thread names to show up in the debugger by setting - // the process name for the LWP. We don't want to do this for the main - // thread because that would rename the process, causing tools like killall - // to stop working. - if (PlatformThread::CurrentId() == getpid()) - return; - - // http://0pointer.de/blog/projects/name-your-threads.html - // Set the name for the LWP (which gets truncated to 15 characters). - // Note that glibc also has a 'pthread_setname_np' api, but it may not be - // available everywhere and it's only benefit over using prctl directly is - // that it can set the name of threads other than the current thread. - int err = prctl(PR_SET_NAME, name.c_str()); - // We expect EPERM failures in sandboxed processes, just ignore those. - if (err < 0 && errno != EPERM) - DPLOG(ERROR) << "prctl(PR_SET_NAME)"; -#endif // !defined(OS_NACL) -} - -void InitThreading() {} - -void InitOnThread() {} - -void TerminateOnThread() {} - -size_t GetDefaultThreadStackSize(const pthread_attr_t& attributes) { -#if !defined(THREAD_SANITIZER) - return 0; -#else - // ThreadSanitizer bloats the stack heavily. Evidence has been that the - // default stack size isn't enough for some browser tests. - return 2 * (1 << 23); // 2 times 8192K (the default stack size on Linux). -#endif -} - -} // namespace base |