1  /* crtend object for windows32 targets.
       2     Copyright (C) 2007-2023 Free Software Foundation, Inc.
       3  
       4     Contributed by Danny Smith <dannysmith@users.sourceforge.net>
       5  
       6  This file is part of GCC.
       7  
       8  GCC is free software; you can redistribute it and/or modify it under
       9  the terms of the GNU General Public License as published by the Free
      10  Software Foundation; either version 3, or (at your option) any later
      11  version.
      12  
      13  GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      14  WARRANTY; without even the implied warranty of MERCHANTABILITY or
      15  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      16  for more details.
      17  
      18  Under Section 7 of GPL version 3, you are granted additional
      19  permissions described in the GCC Runtime Library Exception, version
      20  3.1, as published by the Free Software Foundation.
      21  
      22  You should have received a copy of the GNU General Public License and
      23  a copy of the GCC Runtime Library Exception along with this program;
      24  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      25  <http://www.gnu.org/licenses/>.  */
      26  
      27  /* Target machine header files require this define. */
      28  #define IN_LIBGCC2
      29  
      30  /* auto-host.h is needed by cygming.h for HAVE_GAS_WEAK and here
      31     for HAVE_LD_RO_RW_SECTION_MIXING.  */  
      32  #include "auto-host.h"
      33  #include "tconfig.h"
      34  #include "tsystem.h"
      35  #include "coretypes.h"
      36  #include "tm.h"
      37  #include "libgcc_tm.h"
      38  #include "unwind-dw2-fde.h"
      39  
      40  #if defined(HAVE_LD_RO_RW_SECTION_MIXING)
      41  # define EH_FRAME_SECTION_CONST const
      42  #else
      43  # define EH_FRAME_SECTION_CONST
      44  #endif
      45  
      46  #if DWARF2_UNWIND_INFO
      47  /* Terminate the frame unwind info section with a 0 as a sentinel;
      48     this would be the 'length' field in a real FDE.  */
      49  
      50  static EH_FRAME_SECTION_CONST int __FRAME_END__[]
      51    __attribute__ ((used,  section(__LIBGCC_EH_FRAME_SECTION_NAME__),
      52  		  aligned(4)))
      53    = { 0 };
      54  #endif
      55  
      56  extern void __gcc_register_frame (void); 
      57  extern void __gcc_deregister_frame (void);
      58  
      59  #pragma GCC diagnostic push
      60  #pragma GCC diagnostic ignored "-Wprio-ctor-dtor"
      61  static void register_frame_ctor (void) __attribute__ ((constructor (0)));
      62  #pragma GCC diagnostic pop
      63  
      64  static void
      65  register_frame_ctor (void)
      66  {
      67    __gcc_register_frame ();
      68  }
      69  
      70  #if !DEFAULT_USE_CXA_ATEXIT
      71  #pragma GCC diagnostic push
      72  #pragma GCC diagnostic ignored "-Wprio-ctor-dtor"
      73  static void deregister_frame_dtor (void) __attribute__ ((destructor (0)));
      74  #pragma GCC diagnostic pop
      75  
      76  static void
      77  deregister_frame_dtor (void)
      78  {
      79    __gcc_deregister_frame ();
      80  }
      81  #endif