Add support for FreeBSD in base/ , base/process/ , and base/threading so that the bootstrap binary …

base/threading/platform_thread_freebsd.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2014 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 "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/safe_strerror_posix.h"
 #include "base/threading/thread_id_name_manager.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/tracked_objects.h"
 
 #if !defined(OS_NACL)
-#include <sys/prctl.h>
 #include <sys/resource.h>
 #include <sys/syscall.h>
 #include <sys/time.h>
+#include <sys/types.h>
 #include <unistd.h>
 #endif
 
 namespace base {
 
 namespace {
 int ThreadNiceValue(ThreadPriority priority) {
   switch (priority) {
     case kThreadPriority_RealtimeAudio:
       return -10;
     case kThreadPriority_Background:
       return 10;
     case kThreadPriority_Normal:
       return 0;
     case kThreadPriority_Display:
       return -6;
     default:
       NOTREACHED() << "Unknown priority.";
       return 0;
   }
 }
 } // namespace
 
 // static
 void PlatformThread::SetName(const char* 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.
+  // On FreeBSD 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);
-  // We expect EPERM failures in sandboxed processes, just ignore those.
-  if (err < 0 && errno != EPERM)
-    DPLOG(ERROR) << "prctl(PR_SET_NAME)";
+  setproctitle("%s", name);
 #endif  //  !defined(OS_NACL)
 }
 
 // static
 void PlatformThread::SetThreadPriority(PlatformThreadHandle handle,
                                        ThreadPriority priority) {
 #if !defined(OS_NACL)
   if (priority == kThreadPriority_RealtimeAudio) {
     const struct sched_param kRealTimePrio = { 8 };
     if (pthread_setschedparam(pthread_self(), SCHED_RR, &kRealTimePrio) == 0) {
@@ skipping 25 matching lines @@
 #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