/* Machine-dependent definitions for profiling support.  Generic GCC 2 version.

   Copyright (C) 1996-2018 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, see

   <http://www.gnu.org/licenses/>.  */

/* GCC version 2 gives us a perfect magical function to get

   just the information we need:

     void *__builtin_return_address (unsigned int N)

   returns the return address of the frame N frames up.  */

/* Be warned that GCC cannot usefully compile __builtin_return_address(N)

   for N != 0 on all machines.  In this case, you may have to write

   your own version of _mcount().  */

#if __GNUC__ < 2

 #error "This file uses __builtin_return_address, a GCC 2 extension."

#endif

#include <sysdep.h>

/* The canonical name for the function is `_mcount' in both C and asm,

   but some old asm code might assume it's `mcount'.  */

void _mcount (void);

weak_alias (_mcount, mcount)

static void mcount_internal (u_long frompc, u_long selfpc);

#define _MCOUNT_DECL(frompc, selfpc) \

static inline void mcount_internal (u_long frompc, u_long selfpc)

#define MCOUNT \

void _mcount (void)							      \

{									      \

  mcount_internal ((u_long) RETURN_ADDRESS (1), (u_long) RETURN_ADDRESS (0)); \

}