1  /* Low-level statistical profiling support function.  Linux/ARM version.
       2     Copyright (C) 1996-2023 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  #include <signal.h>
      20  #include <sigcontextinfo.h>
      21  
      22  void
      23  __profil_counter (int signo, siginfo_t *_si, void *scp)
      24  {
      25    profil_count (sigcontext_get_pc (scp));
      26  
      27    /* This is a hack to prevent the compiler from implementing the
      28       above function call as a sibcall.  The sibcall would overwrite
      29       the signal context.  */
      30    asm volatile ("");
      31  }
      32  #ifndef __profil_counter
      33  # include <shlib-compat.h>
      34  # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_31)
      35  compat_symbol (libc, __profil_counter, profil_counter, GLIBC_2_0);
      36  # endif
      37  #endif