/* profile.h - Profiling support interface.
   Copyright (C) 2008 Free Software Foundation, Inc.
   Written by Neal H. Walfield <neal@gnu.org>.

   This file is part of the GNU Hurd.

   The GNU Hurd is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 3 of the
   License, or (at your option) any later version.

   The GNU Hurd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see
   <http://www.gnu.org/licenses/>.  */

#include <stdint.h>

/* XXX: Note that the implementation is currently not multi-thread
   safe.  */

/* Currently, only enable by default for Viengoos.  */
#ifdef RM_INTERN
#define NPROFILE
#endif

#ifndef NPROFILE

/* Start a timer for the profile site ID (this must be unique per
   site, can be the function's address).  NAME is the symbolic
   name.  */
extern void profile_start (uintptr_t id, const char *name, const char *name2);

/* End the timer for the profile site ID.  */
extern void profile_end (uintptr_t id);

extern void profile_stats_dump (void);

#else

#define profile_start(id, name, name2) do { } while (0)
#define profile_end(id) do { } while (0)
#define profile_stats_dump() do { } while (0)

#endif

#define profile_region(__pr_name)					\
  {									\
    uintptr_t __pr_id_ = (uintptr_t) __func__ + (uintptr_t) (__pr_name); \
    profile_start (__pr_id_, __func__, (__pr_name))

#define profile_region_end()			\
    profile_end (__pr_id_);			\
  }