include/lttng/compat.h

   1 #ifndef _UST_COMPAT_H
   2 #define _UST_COMPAT_H
   3
   4 /*
   5  * Copyright (C) 2011   Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  20  */
  21
  22 #include <sys/syscall.h>
  23
  24 #ifdef __UCLIBC__
  25 #define __getcpu(cpu, node, cache)      syscall(__NR_getcpu, cpu, node, cache)
  26 static inline
  27 int sched_getcpu(void)
  28 {
  29         int c, s;
  30
  31         s = __getcpu(&c, NULL, NULL);
  32         return (s == -1) ? s : c;
  33 }
  34 #endif  /* __UCLIBC__ */
  35 #endif /* _UST_COMPAT_H */