liblttng-ust-cyg-profile/lttng-ust-cyg-profile.c

   1 /*
   2  * Copyright (C) 2011-2013  Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  17  */
  18
  19 #define _GNU_SOURCE
  20 #include <dlfcn.h>
  21 #include <sys/types.h>
  22 #include <stdio.h>
  23
  24 #define TRACEPOINT_DEFINE
  25 #define TRACEPOINT_CREATE_PROBES
  26 #include "lttng-ust-cyg-profile.h"
  27
  28 void __cyg_profile_func_enter(void *this_fn, void *call_site)
  29         __attribute__((no_instrument_function));
  30
  31 void __cyg_profile_func_exit(void *this_fn, void *call_site)
  32         __attribute__((no_instrument_function));
  33
  34 void __cyg_profile_func_enter(void *this_fn, void *call_site)
  35 {
  36         tracepoint(lttng_ust_cyg_profile, func_entry, this_fn);
  37 }
  38
  39 void __cyg_profile_func_exit(void *this_fn, void *call_site)
  40 {
  41         tracepoint(lttng_ust_cyg_profile, func_exit);
  42 }