1  /* LoongArch definitions for profiling support.
       2     Copyright (C) 2022-2023 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, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  /* Accept 'frompc' address as argument from the function that calls
      20     _mcount for profiling.  Use  __builtin_return_address (0)
      21     for the 'selfpc' address.  */
      22  
      23  #include <sysdep.h>
      24  
      25  static void mcount_internal (unsigned long int frompc,
      26  			     unsigned long int selfpc);
      27  
      28  #define _MCOUNT_DECL(frompc, selfpc) \
      29    static inline void mcount_internal (unsigned long int frompc, \
      30  				      unsigned long int selfpc)
      31  
      32  #define MCOUNT \
      33    void _mcount (void *frompc) \
      34    { \
      35      mcount_internal ((unsigned long int) frompc, \
      36  		     (unsigned long int) RETURN_ADDRESS (0)); \
      37    }