xref: /reactos/sdk/lib/crt/startup/gccmain.c (revision c8d07514)
1 /**
2  * This file has no copyright assigned and is placed in the Public Domain.
3  * This file is part of the w64 mingw-runtime package.
4  * No warranty is given; refer to the file DISCLAIMER.PD within this package.
5  */
6 
7 //#include <windows.h>
8 #include <stdlib.h>
9 #include <setjmp.h>
10 
11 typedef void (*func_ptr) (void);
12 extern func_ptr __CTOR_LIST__[];
13 extern func_ptr __DTOR_LIST__[];
14 
15 void __do_global_dtors (void);
16 void __do_global_ctors (void);
17 void __main (void);
18 
19 void
20 __do_global_dtors (void)
21 {
22   static func_ptr *p = __DTOR_LIST__ + 1;
23 
24   while (*p)
25     {
26       (*(p)) ();
27       p++;
28     }
29 }
30 
31 void
32 __do_global_ctors (void)
33 {
34   unsigned long nptrs = (unsigned long) (ptrdiff_t) __CTOR_LIST__[0];
35   unsigned long i;
36 
37   if (nptrs == (unsigned long) -1)
38     {
39       for (nptrs = 0; __CTOR_LIST__[nptrs + 1] != 0; nptrs++);
40     }
41 
42   for (i = nptrs; i >= 1; i--)
43     {
44       __CTOR_LIST__[i] ();
45     }
46 }
47 
48 static int initialized = 0;
49 
50 void
51 __main (void)
52 {
53   if (!initialized)
54     {
55       initialized = 1;
56       __do_global_ctors ();
57     }
58 }
59