profil-counter.h

来自「ucLinux is a very good embeded sytem. Mo」· C头文件 代码 · 共 33 行

/* Low-level statistical profiling support function.  Linux/x86-64 version.
   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <signal.h>
#include <sigcontextinfo.h>

static void
profil_counter (int signo, SIGCONTEXT scp)
{
  profil_count ((void *) GET_PC (scp));

  /* This is a hack to prevent the compiler from implementing the
     above function call as a sibcall.  The sibcall would overwrite
     the signal context.  */
  asm volatile ("");
}