Set the profiler's thread name at a central place

base/threading/platform_thread_posix.cc

 // Copyright (c) 2011 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_local.h"
 #include "base/threading/thread_restrictions.h"
+#include "base/tracked_objects.h"
 
 #if defined(OS_MACOSX)
 #include <mach/mach.h>
 #include <sys/resource.h>
 #include <algorithm>
 #endif
 
 #if defined(OS_LINUX)
 #include <dlfcn.h>
 #include <sys/prctl.h>
@@ skipping 142 matching lines @@
 // Linux SetName is currently disabled, as we need to distinguish between
 // helper threads (where it's ok to make this call) and the main thread
 // (where making this call renames our process, causing tools like killall
 // to stop working).
 #if 0 && defined(OS_LINUX)
 // static
 void PlatformThread::SetName(const char* name) {
   // have to cast away const because ThreadLocalPointer does not support const
   // void*
   current_thread_name.Pointer()->Set(const_cast<char*>(name));
+  tracked_objects::ThreadData::InitializeThreadContext(name);
 
   // http://0pointer.de/blog/projects/name-your-threads.html
 
   // glibc recently added support for pthread_setname_np, but it's not
   // commonly available yet.  So test for it at runtime.
   int (*dynamic_pthread_setname_np)(pthread_t, const char*);
   *reinterpret_cast<void**>(&dynamic_pthread_setname_np) =
       dlsym(RTLD_DEFAULT, "pthread_setname_np");
 
   if (dynamic_pthread_setname_np) {
@@ skipping 15 matching lines @@
   }
 }
 #elif defined(OS_MACOSX)
 // Mac is implemented in platform_thread_mac.mm.
 #else
 // static
 void PlatformThread::SetName(const char* name) {
   // have to cast away const because ThreadLocalPointer does not support const
   // void*
   current_thread_name.Pointer()->Set(const_cast<char*>(name));
+  tracked_objects::ThreadData::InitializeThreadContext(name);
 
   // (This should be relatively simple to implement for the BSDs; I
   // just don't have one handy to test the code on.)
 }
 #endif  // defined(OS_LINUX)
 
 
 #if !defined(OS_MACOSX)
 // Mac is implemented in platform_thread_mac.mm.
 // static
@@ skipping 31 matching lines @@
 // Mac OS X uses lower-level mach APIs
 
 // static
 void PlatformThread::SetThreadPriority(PlatformThreadHandle, ThreadPriority) {
   // TODO(crogers): implement
   NOTIMPLEMENTED();
 }
 #endif
 
 }  // namespace base