vxworks.h revision 132718 
1/* Common VxWorks target definitions for GCC.
2   Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
3   Contributed by Wind River Systems.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GCC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING.  If not, write to
19the Free Software Foundation, 59 Temple Place - Suite 330,
20Boston, MA 02111-1307, USA.  */
21
22/* Specify what to link with.  */
23/* VxWorks does all the library stuff itself.  */
24#undef	LIB_SPEC
25#define	LIB_SPEC ""
26
27#undef LINK_SPEC
28#define LINK_SPEC "-r"
29
30/* VxWorks provides the functionality of crt0.o and friends itself.  */
31#undef  STARTFILE_SPEC
32#define	STARTFILE_SPEC ""
33
34#undef ENDFILE_SPEC
35#define ENDFILE_SPEC ""
36
37/* VxWorks cannot have dots in constructor labels, because it uses a
38   mutant variation of collect2 that generates C code instead of
39   assembly.  Thus each constructor label must be a legitimate C
40   symbol.  FIXME: Have VxWorks use real collect2 instead.  */
41
42#undef NO_DOLLAR_IN_LABEL
43#define NO_DOT_IN_LABEL
44
45/* enable #pragma pack(n) */
46#define HANDLE_SYSV_PRAGMA
47
48/* No underscore is prepended to any C symbol name.  */
49#undef USER_LABEL_PREFIX
50#define USER_LABEL_PREFIX ""
51
52/* VxWorks uses wchar_t == unsigned short (UCS2) on all architectures.  */
53#undef WCHAR_TYPE
54#define WCHAR_TYPE "short unsigned int"
55#undef WCHAR_TYPE_SIZE
56#define WCHAR_TYPE_SIZE 16
57
58/* Dwarf2 unwind info is not supported.  */
59#define DWARF2_UNWIND_INFO 0
60/* Weak symbols and link-once sections are not enabled by default.  */
61#define DEFAULT_USE_WEAK 0
62
63/* Only supported debug format is Dwarf2.  */
64#undef DBX_DEBUGGING_INFO
65