liblttng-ust-cyg-profile/lttng-ust-cyg-profile-fast.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 #define _LGPL_SOURCE
  21 #include <dlfcn.h>
  22 #include <sys/types.h>
  23 #include <stdio.h>
  24
  25 #define TRACEPOINT_DEFINE
  26 #define TRACEPOINT_CREATE_PROBES
  27 #define TP_IP_PARAM func_addr
  28 #include "lttng-ust-cyg-profile-fast.h"
  29
  30 void __cyg_profile_func_enter(void *this_fn, void *call_site)
  31         __attribute__((no_instrument_function));
  32
  33 void __cyg_profile_func_exit(void *this_fn, void *call_site)
  34         __attribute__((no_instrument_function));
  35
  36 void __cyg_profile_func_enter(void *this_fn, void *call_site)
  37 {
  38         tracepoint(lttng_ust_cyg_profile_fast, func_entry, this_fn);
  39 }
  40
  41 void __cyg_profile_func_exit(void *this_fn, void *call_site)
  42 {
  43         tracepoint(lttng_ust_cyg_profile_fast, func_exit, this_fn);
  44 }