Add support for FreeBSD in base/ , base/process/ , and base/threading so that the bootstrap binary for GN (the one in TEMPDIR) can be built and run.

Tested on FreeBSD 8.4-i386 and FreeBSD 10.0-amd64

BUG=

Review URL: https://codereview.chromium.org/185713005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256124 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 103 insertions, 0 deletions

diff --git a/base/threading/platform_thread_freebsd.cc b/base/threading/platform_thread_freebsd.cc
new file mode 100644
index 0000000..7a24f4e
--- /dev/null
+++ b/base/threading/platform_thread_freebsd.cc
@@ -0,0 +1,103 @@
+// Copyright 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/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 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;
+  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) {
+      // Got real time priority, no need to set nice level.
+      return;
+    }
+  }
+
+  // setpriority(2) will set a thread's priority if it is passed a tid as
+  // the 'process identifier', not affecting the rest of the threads in the
+  // process. Setting this priority will only succeed if the user has been
+  // granted permission to adjust nice values on the system.
+  DCHECK_NE(handle.id_, kInvalidThreadId);
+  const int kNiceSetting = ThreadNiceValue(priority);
+  if (setpriority(PRIO_PROCESS, handle.id_, kNiceSetting)) {
+    DVPLOG(1) << "Failed to set nice value of thread ("
+              << handle.id_ << ") to " << kNiceSetting;
+  }
+#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