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comparison gcc/config/i386/netware-crt0.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /* Startup routines for NetWare.
2 Contributed by Jan Beulich (jbeulich@novell.com)
3 Copyright (C) 2004, 2007 Free Software Foundation, Inc.
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
10 any later version.
11
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 #include <stddef.h>
22 #include <stdint.h>
23 #include "unwind-dw2-fde.h"
24
25 int __init_environment (void *);
26 int __deinit_environment (void *);
27
28
29 #define SECTION_DECL(name, decl) decl __attribute__((__section__(name)))
30
31 SECTION_DECL(".ctors", void(*const __CTOR_LIST__)(void))
32 = (void(*)(void))(intptr_t)-1;
33 SECTION_DECL(".ctors$_", void(*const __CTOR_END__)(void)) = NULL;
34
35 SECTION_DECL(".dtors", void(*const __DTOR_LIST__)(void))
36 = (void(*)(void))(intptr_t)-1;
37 SECTION_DECL(".dtors$_", void(*const __DTOR_END__)(void)) = NULL;
38
39 /* No need to use the __[de]register_frame_info_bases functions since
40 for us the bases are NULL always anyway. */
41 void __register_frame_info (const void *, struct object *)
42 __attribute__((__weak__));
43 void *__deregister_frame_info (const void *) __attribute__((__weak__));
44
45 SECTION_DECL(".eh_frame", /*const*/ uint32_t __EH_FRAME_BEGIN__[]) = { };
46 SECTION_DECL(".eh_frame$_", /*const*/ uint32_t __EH_FRAME_END__[]) = {0};
47
48 int
49 __init_environment (void *unused __attribute__((__unused__)))
50 {
51 void (* const * pctor)(void);
52 static struct object object;
53
54 if (__register_frame_info)
55 __register_frame_info (__EH_FRAME_BEGIN__, &object);
56
57 for (pctor = &__CTOR_END__ - 1; pctor > &__CTOR_LIST__; --pctor)
58 if (*pctor != NULL)
59 (*pctor)();
60
61 return 0;
62 }
63
64 int
65 __deinit_environment (void *unused __attribute__((__unused__)))
66 {
67 /* This should be static to prevent calling the same destructor
68 twice (just in case where we get here multiple times). */
69 static void (* const * pdtor)(void) = &__DTOR_LIST__ + 1;
70
71 while (pdtor < &__DTOR_END__)
72 if (*pdtor++ != NULL)
73 pdtor[-1] ();
74
75 if (__deregister_frame_info)
76 __deregister_frame_info(__EH_FRAME_BEGIN__);
77
78 return 0;
79 }