1/*
2 * (c) 2008-2010 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
3 *               Alexander Warg <warg@os.inf.tu-dresden.de>
4 *     economic rights: Technische Universität Dresden (Germany)
5 *
6 * This file is part of TUD:OS and distributed under the terms of the
7 * GNU General Public License 2.
8 * Please see the COPYING-GPL-2 file for details.
9 *
10 * As a special exception, you may use this file as part of a free software
11 * library without restriction.  Specifically, if other files instantiate
12 * templates or use macros or inline functions from this file, or you compile
13 * this file and link it with other files to produce an executable, this
14 * file does not by itself cause the resulting executable to be covered by
15 * the GNU General Public License.  This exception does not however
16 * invalidate any other reasons why the executable file might be covered by
17 * the GNU General Public License.
18 */
19#if 0
20#define ABS_FUNC(s,value) \
21.global s;          \
22.type s, #function; \
23.size s, 12;        \
24s = value
25
26ABS_FUNC(l4_atomic_add,     0xffffe000)
27ABS_FUNC(l4_atomic_cmpxchg, 0xffffe100)
28ABS_FUNC(l4_atomic_xchg,    0xffffe200)
29
30#else
31
32/* Using the above gives problems when using it in shared libs
33 * due to relocation which actually shouldn't happen */
34
35#define JUMP_CODE(name)			\
36	.global name;			\
37	.type name, #function;		\
38	.size name, 12;			\
39	name:				\
40		ldr	pc, .LC##name;	\
41		/* Will return to our caller */
42
43JUMP_CODE(l4_atomic_add)
44JUMP_CODE(l4_atomic_cmpxchg)
45JUMP_CODE(l4_atomic_xchg)
46
47
48.LCl4_atomic_add:         .word 0xffffe000
49.LCl4_atomic_cmpxchg:     .word 0xffffe100
50.LCl4_atomic_xchg:        .word 0xffffe200
51#endif
52