summaryrefslogtreecommitdiffstats
path: root/arch/s390/include/uapi/asm/sigcontext.h
blob: b30de9c01bbedad00c5e15ff52ffa8d19b06c824 (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
65
66
67
68
69
70
/*
 *  S390 version
 *    Copyright IBM Corp. 1999, 2000
 */

#ifndef _ASM_S390_SIGCONTEXT_H
#define _ASM_S390_SIGCONTEXT_H

#include <linux/compiler.h>

#define __NUM_GPRS 16
#define __NUM_FPRS 16
#define __NUM_ACRS 16

#ifndef __s390x__

/* Has to be at least _NSIG_WORDS from asm/signal.h */
#define _SIGCONTEXT_NSIG	64
#define _SIGCONTEXT_NSIG_BPW	32
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE	96

#else /* __s390x__ */

/* Has to be at least _NSIG_WORDS from asm/signal.h */
#define _SIGCONTEXT_NSIG	64
#define _SIGCONTEXT_NSIG_BPW	64 
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE	160

#endif /* __s390x__ */

#define _SIGCONTEXT_NSIG_WORDS	(_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
#define _SIGMASK_COPY_SIZE	(sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)

typedef struct 
{
        unsigned long mask;
        unsigned long addr;
} __attribute__ ((aligned(8))) _psw_t;

typedef struct
{
	_psw_t psw;
	unsigned long gprs[__NUM_GPRS];
	unsigned int  acrs[__NUM_ACRS];
} _s390_regs_common;

typedef struct
{
	unsigned int fpc;
	unsigned int pad;
	double   fprs[__NUM_FPRS];
} _s390_fp_regs;

typedef struct
{
	_s390_regs_common regs;
	_s390_fp_regs     fpregs;
} _sigregs;

struct sigcontext
{
	unsigned long	oldmask[_SIGCONTEXT_NSIG_WORDS];
	_sigregs        __user *sregs;
};


#endif