1 /**
2 * \internal
3 * \file
4 * \brief L4 IPC System Calls, amd64
5 * \ingroup api_calls
6 */
7 /*
8 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>,
9 * Alexander Warg <warg@os.inf.tu-dresden.de>,
10 * Frank Mehnert <fm3@os.inf.tu-dresden.de>,
11 * Torsten Frenzel <frenzel@os.inf.tu-dresden.de>
12 * economic rights: Technische Universität Dresden (Germany)
13 *
14 * This file is part of TUD:OS and distributed under the terms of the
15 * GNU General Public License 2.
16 * Please see the COPYING-GPL-2 file for details.
17 *
18 * As a special exception, you may use this file as part of a free software
19 * library without restriction. Specifically, if other files instantiate
20 * templates or use macros or inline functions from this file, or you compile
21 * this file and link it with other files to produce an executable, this
22 * file does not by itself cause the resulting executable to be covered by
23 * the GNU General Public License. This exception does not however
24 * invalidate any other reasons why the executable file might be covered by
25 * the GNU General Public License.
26 */
27 #ifndef __L4SYS__INCLUDE__ARCH_AMD64__L4API_L4F__IPC_H__
28 #define __L4SYS__INCLUDE__ARCH_AMD64__L4API_L4F__IPC_H__
29
30 #include_next <l4/sys/ipc.h>
31
32 L4_INLINE l4_msgtag_t
l4_ipc(l4_cap_idx_t dest,l4_utcb_t * utcb,l4_umword_t flags,l4_umword_t slabel,l4_msgtag_t tag,l4_umword_t * rlabel,l4_timeout_t timeout)33 l4_ipc(l4_cap_idx_t dest, l4_utcb_t *utcb,
34 l4_umword_t flags,
35 l4_umword_t slabel,
36 l4_msgtag_t tag,
37 l4_umword_t *rlabel,
38 l4_timeout_t timeout) L4_NOTHROW
39 {
40 l4_umword_t dummy, dummy2;
41 register l4_umword_t to __asm__("r8") = timeout.raw;
42
43 (void)utcb;
44
45 __asm__ __volatile__
46 ("syscall"
47 :
48 "=d" (dummy2),
49 "=S" (slabel),
50 "=D" (dummy),
51 "=a" (tag.raw)
52 :
53 "S" (slabel),
54 "r" (to),
55 "a" (tag.raw),
56 "d" (dest | flags)
57 :
58 "memory", "cc", "rcx", "r11", "r15"
59 );
60
61 if (rlabel)
62 *rlabel = slabel;
63
64 return tag;
65 }
66
67 #endif /* ! __L4SYS__INCLUDE__ARCH_AMD64__L4API_L4F__IPC_H__ */
68