1  /* Machine-dependent SIGPROF signal handler.  "Generic" version w/ sigcontext
       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  /* In many Unix systems signal handlers are called like this
      20     and the interrupted PC is easily findable in the `struct sigcontext'.  */
      21  
      22  #ifdef SA_SIGINFO
      23  #include <sigcontextinfo.h>
      24  
      25  static void
      26  __profil_counter (int signr, siginfo_t *info, void *ctx)
      27  {
      28    profil_count (sigcontext_get_pc (ctx));
      29  }
      30  #else
      31  static void
      32  __profil_counter (int signr, int code, struct sigcontext *scp)
      33  {
      34    profil_count ((uintptr_t) scp->sc_pc);
      35  }
      36  #endif