1  /* Register profiling startup and cleanup with Solaris CRTs.
       2     Copyright (C) 2015-2023 Free Software Foundation, Inc.
       3  
       4  This file is part of GCC.
       5  
       6  GCC is free software; you can redistribute it and/or modify it under
       7  the terms of the GNU General Public License as published by the Free
       8  Software Foundation; either version 3, or (at your option) any later
       9  version.
      10  
      11  GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12  WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14  for more details.
      15  
      16  Under Section 7 of GPL version 3, you are granted additional
      17  permissions described in the GCC Runtime Library Exception, version
      18  3.1, as published by the Free Software Foundation.
      19  
      20  You should have received a copy of the GNU General Public License and
      21  a copy of the GCC Runtime Library Exception along with this program;
      22  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      23  <http://www.gnu.org/licenses/>.  */
      24  
      25  #include <stdlib.h>
      26  
      27  extern void monstartup (char *, char *);
      28  extern void _mcleanup (void);
      29  
      30  extern char _start[], _etext[];
      31  
      32  int __start_crt_compiler (int, char **);
      33  
      34  /* Since Solaris 11.4, the system-provided CRTs provide a hook to invoke
      35     initialization code early during process startup.  __start_crt_compiler
      36     is documented in crt1.o(5).  We use it to perform initialization for
      37     profiling as a substitute for the earlier separate gcrt1.o.  */
      38  
      39  int
      40  __start_crt_compiler (int argc __attribute__ ((unused)),
      41  		      char **argv __attribute__ ((unused)))
      42  {
      43    monstartup (_start, _etext);
      44    atexit (_mcleanup);
      45    return 0;
      46  }