OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [gthr-lynx.h] - Blame information for rev 280

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 280 jeremybenn
/* Threads compatibility routines for libgcc2 and libobjc for
2
   LynxOS.  */
3
/* Compile this one with gcc.  */
4
/* Copyright (C) 2004, 2008, 2009 Free Software Foundation, Inc.
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
#ifndef GCC_GTHR_LYNX_H
28
#define GCC_GTHR_LYNX_H
29
 
30
#ifdef _MULTITHREADED
31
 
32
/* Using the macro version of pthread_setspecific leads to a
33
   compilation error.  Instead we have two choices either kill all
34
   macros in pthread.h with defining _POSIX_THREADS_CALLS or undefine
35
   individual macros where we should fall back on the function
36
   implementation.  We choose the second approach.  */
37
 
38
#include <pthread.h>
39
#undef pthread_setspecific
40
 
41
/* When using static libc on LynxOS, we cannot define pthread_create
42
   weak.  If the multi-threaded application includes iostream.h,
43
   gthr-posix.h is included and pthread_create will be defined weak.
44
   If pthread_create is weak its defining module in libc is not
45
   necessarily included in the link and the symbol is resolved to zero.
46
   Therefore the first call to it will crash.
47
 
48
   Since -mthreads is a multilib switch on LynxOS we know that at this
49
   point we are compiling for multi-threaded.  Omitting the weak
50
   definitions at this point should have no effect.  */
51
 
52
#undef  GTHREAD_USE_WEAK
53
#define GTHREAD_USE_WEAK 0
54
 
55
#include "gthr-posix.h"
56
 
57
#else
58
#include "gthr-single.h"
59
#endif
60
 
61
#endif /* GCC_GTHR_LYNX_H */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.