sysdeps/unix/sysv/linux/sh/profil-counter.h

   1 /* Low-level statistical profiling support function.  Linux/SH version.
   2    Copyright (C) 1996, 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <signal.h>
  21
  22 static void
  23 profil_counter (int signo, int _a2, int _a3, int _a4, struct sigcontext sc)
  24 {
  25   void *pc;
  26   pc = (void *) sc.sc_pc;
  27   profil_count (pc);
  28
  29   /* This is a hack to prevent the compiler from implementing the
  30      above function call as a sibcall.  The sibcall would overwrite
  31      the signal context.  */
  32   asm volatile ("");
  33 }