sigcontext.h

 1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 2/*
 3 *  S390 version
 4 *    Copyright IBM Corp. 1999, 2000
 5 */
 6
 7#ifndef _ASM_S390_SIGCONTEXT_H
 8#define _ASM_S390_SIGCONTEXT_H
 9
10#include <linux/compiler.h>
11#include <linux/types.h>
12
13#define __NUM_GPRS		16
14#define __NUM_FPRS		16
15#define __NUM_ACRS		16
16#define __NUM_VXRS		32
17#define __NUM_VXRS_LOW		16
18#define __NUM_VXRS_HIGH		16
19
20/* Has to be at least _NSIG_WORDS from asm/signal.h */
21#define _SIGCONTEXT_NSIG	64
22#define _SIGCONTEXT_NSIG_BPW	64 
23/* Size of stack frame allocated when calling signal handler. */
24#define __SIGNAL_FRAMESIZE	160
25
26#define _SIGCONTEXT_NSIG_WORDS	(_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
27#define _SIGMASK_COPY_SIZE	(sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
28
29typedef struct 
30{
31        unsigned long mask;
32        unsigned long addr;
33} __attribute__ ((aligned(8))) _psw_t;
34
35typedef struct
36{
37	_psw_t psw;
38	unsigned long gprs[__NUM_GPRS];
39	unsigned int  acrs[__NUM_ACRS];
40} _s390_regs_common;
41
42typedef struct
43{
44	unsigned int fpc;
45	unsigned int pad;
46	double   fprs[__NUM_FPRS];
47} _s390_fp_regs;
48
49typedef struct
50{
51	_s390_regs_common regs;
52	_s390_fp_regs     fpregs;
53} _sigregs;
54
55typedef struct
56{
57	unsigned long long vxrs_low[__NUM_VXRS_LOW];
58	__vector128 vxrs_high[__NUM_VXRS_HIGH];
59	unsigned char __reserved[128];
60} _sigregs_ext;
61
62struct sigcontext
63{
64	unsigned long	oldmask[_SIGCONTEXT_NSIG_WORDS];
65	_sigregs        __user *sregs;
66};
67
68
69#endif
70