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/* Definitions relating to the special __do_global_init function used

   for getting g++ file-scope static objects constructed.  This file

   will get included either by libgcc2.c (for systems that don't support

   a .init section) or by crtstuff.c (for those that do).

   Copyright (C) 1991, 1995, 1996, 1998, 1999, 2000, 2003, 2009

   Free Software Foundation, Inc.

   Contributed by Ron Guilmette (rfg@segfault.us.com)

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under

the terms of the GNU General Public License as published by the Free

Software Foundation; either version 3, or (at your option) any later

version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY

WARRANTY; without even the implied warranty of MERCHANTABILITY or

FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

for more details.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

<http://www.gnu.org/licenses/>.  */

/*      This file contains definitions and declarations of things

        relating to the normal start-up-time invocation of C++

        file-scope static object constructors.  These declarations

        and definitions are used by *both* libgcc2.c and by crtstuff.c.

        Note that this file should only be compiled with GCC.

*/

#ifndef GCC_GBL_CTORS_H

#define GCC_GBL_CTORS_H

/*  Declare a pointer to void function type.  */

typedef void (*func_ptr) (void);

/* Declare the set of symbols use as begin and end markers for the lists

   of global object constructors and global object destructors.  */

extern func_ptr __CTOR_LIST__[];

extern func_ptr __DTOR_LIST__[];

/* Declare the routine which needs to get invoked at program start time.  */

extern void __do_global_ctors (void);

/* Declare the routine which needs to get invoked at program exit time.  */

extern void __do_global_dtors (void);

/* Define a macro with the code which needs to be executed at program

   start-up time.  This macro is used in two places in crtstuff.c (for

   systems which support a .init section) and in one place in libgcc2.c

   (for those system which do *not* support a .init section).  For all

   three places where this code might appear, it must be identical, so

   we define it once here as a macro to avoid various instances getting

   out-of-sync with one another.  */

/* Some systems place the number of pointers

   in the first word of the table.

   On other systems, that word is -1.

   In all cases, the table is null-terminated.

   If the length is not recorded, count up to the null.  */

/* Some systems use a different strategy for finding the ctors.

   For example, svr3.  */

#ifndef DO_GLOBAL_CTORS_BODY

#define DO_GLOBAL_CTORS_BODY                                            \

do {                                                                    \

  __SIZE_TYPE__ nptrs = (__SIZE_TYPE__) __CTOR_LIST__[0];                \

  unsigned i;                                                           \

  if (nptrs == (__SIZE_TYPE__)-1)                                       \

    for (nptrs = 0; __CTOR_LIST__[nptrs + 1] != 0; nptrs++);              \

  for (i = nptrs; i >= 1; i--)                                          \

    __CTOR_LIST__[i] ();                                                \

} while (0)

#endif

#endif /* GCC_GBL_CTORS_H */