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comparison gcc/config/i386/cygming-crtend.c @ 0:a06113de4d67

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first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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children f6334be47118
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-1:000000000000 0:a06113de4d67
1 /* crtend object for windows32 targets.
2 Copyright (C) 2007, 2008, 2009 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 "unwind-dw2-fde.h"
38
39 #if defined(HAVE_LD_RO_RW_SECTION_MIXING)
40 # define EH_FRAME_SECTION_CONST const
41 #else
42 # define EH_FRAME_SECTION_CONST
43 #endif
44
45 #if DWARF2_UNWIND_INFO
46 /* Terminate the frame unwind info section with a 0 as a sentinel;
47 this would be the 'length' field in a real FDE. */
48
49 static EH_FRAME_SECTION_CONST int __FRAME_END__[]
50 __attribute__ ((unused, section(EH_FRAME_SECTION_NAME),
51 aligned(4)))
52 = { 0 };
53 #endif
54
55 #if TARGET_USE_JCR_SECTION
56 /* Null terminate the .jcr section array. */
57 static void *__JCR_END__[1]
58 __attribute__ ((unused, section(JCR_SECTION_NAME),
59 aligned(sizeof(void *))))
60 = { 0 };
61 #endif
62
63 extern void __gcc_register_frame (void);
64 extern void __gcc_deregister_frame (void);
65
66 static void register_frame_ctor (void) __attribute__ ((constructor (0)));
67
68 static void
69 register_frame_ctor (void)
70 {
71 __gcc_register_frame ();
72 #if DEFAULT_USE_CXA_ATEXIT
73 /* If we use the __cxa_atexit method to register C++ dtors
74 at object construction, also use atexit to register eh frame
75 info cleanup. */
76 atexit (__gcc_deregister_frame);
77 #endif
78 }
79
80 #if !DEFAULT_USE_CXA_ATEXIT
81 static void deregister_frame_dtor (void) __attribute__ ((destructor (0)));
82
83 static void
84 deregister_frame_dtor (void)
85 {
86 __gcc_deregister_frame ();
87 }
88 #endif