From: scox AT cygnus DOT com (Stan Cox)
Subject: Re: Cygnus b19 gcc and Mingw32
8 Mar 1998 14:52:56 -0800
Message-ID: <199803082234.OAA25497.cygnus.cygwin32.developers@rtl.cygnus.com>
References: <000601bd4730$4f828cc0$fa173185 DOT cygnus DOT gnu-win32 AT gbird0 DOT fu DOT is DOT saga-u DOT ac DOT jp>
To: colin AT fu DOT is DOT saga-u DOT ac DOT jp

For the merged cygwin32/win32 that I am experimenting with, I added
__do_global_dtors, __do_global_ctors, and __main to
winsup/mingw/mcrt0.c.  cygwin32 defines its own __main et al, and does
not build the gcc version (gcc/libgcc2.c).  

Stan



#ifdef __CYGWIN32__

typedef void (*func_ptr) (void);
extern func_ptr __CTOR_LIST__[];
extern func_ptr __DTOR_LIST__[];

void
__do_global_dtors (void)
{
  static func_ptr *p = __DTOR_LIST__ + 1;

  while (*p)
    {
      p++;
      (*(p-1)) ();
    }
}

void
__do_global_ctors (void)
{

  unsigned long nptrs = (unsigned long) __CTOR_LIST__[0];
  unsigned i;
  if (nptrs == -1)
    for (nptrs = 0; __CTOR_LIST__[nptrs + 1] != 0; nptrs++);
  for (i = nptrs; i >= 1; i--)
    __CTOR_LIST__[i] ();

  atexit (__do_global_dtors);
}

void
__main (void)
{
  static int initialized;
  if (! initialized)
    {
      initialized = 1;
      __do_global_ctors ();
    }
}
#endif