blob: 9a8abd67ec5c94a0bad855251f296d2f07be8bf3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 1994 - 2000 Ralf Baechle
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
*/
#ifndef __SIGNAL_COMMON_H
#define __SIGNAL_COMMON_H
/* #define DEBUG_SIG */
#ifdef DEBUG_SIG
# define DEBUGP(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ##args)
#else
# define DEBUGP(fmt, args...)
#endif
/*
* Horribly complicated - with the bloody RM9000 workarounds enabled
* the signal trampolines is moving to the end of the structure so we can
* increase the alignment without breaking software compatibility.
*/
#if ICACHE_REFILLS_WORKAROUND_WAR == 0
struct sigframe {
u32 sf_ass[4]; /* argument save space for o32 */
u32 sf_code[2]; /* signal trampoline */
struct sigcontext sf_sc;
sigset_t sf_mask;
};
#else /* ICACHE_REFILLS_WORKAROUND_WAR */
struct sigframe {
u32 sf_ass[4]; /* argument save space for o32 */
u32 sf_pad[2];
struct sigcontext sf_sc; /* hw context */
sigset_t sf_mask;
u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
};
#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
/*
* handle hardware context
*/
extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
/*
* Determine which stack to use..
*/
extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
size_t frame_size);
/*
* install trampoline code to get back from the sig handler
*/
extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall);
#endif /* __SIGNAL_COMMON_H */
|
