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 #ifndef __s390x__
21
22 /* Has to be at least _NSIG_WORDS from asm/signal.h */
23 #define _SIGCONTEXT_NSIG 64
24 #define _SIGCONTEXT_NSIG_BPW 32
25 /* Size of stack frame allocated when calling signal handler. */
26 #define __SIGNAL_FRAMESIZE 96
27
28 #else /* __s390x__ */
29
30 /* Has to be at least _NSIG_WORDS from asm/signal.h */
31 #define _SIGCONTEXT_NSIG 64
32 #define _SIGCONTEXT_NSIG_BPW 64
33 /* Size of stack frame allocated when calling signal handler. */
34 #define __SIGNAL_FRAMESIZE 160
35
36 #endif /* __s390x__ */
37
38 #define _SIGCONTEXT_NSIG_WORDS (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
39 #define _SIGMASK_COPY_SIZE (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
40
41 typedef struct
42 {
43 unsigned long mask;
44 unsigned long addr;
45 } __attribute__ ((aligned(8))) _psw_t;
46
47 typedef struct
48 {
49 _psw_t psw;
50 unsigned long gprs[__NUM_GPRS];
51 unsigned int acrs[__NUM_ACRS];
52 } _s390_regs_common;
53
54 typedef struct
55 {
56 unsigned int fpc;
57 unsigned int pad;
58 double fprs[__NUM_FPRS];
59 } _s390_fp_regs;
60
61 typedef struct
62 {
63 _s390_regs_common regs;
64 _s390_fp_regs fpregs;
65 } _sigregs;
66
67 typedef struct
68 {
69 #ifndef __s390x__
70 unsigned long gprs_high[__NUM_GPRS];
71 #endif
72 unsigned long long vxrs_low[__NUM_VXRS_LOW];
73 __vector128 vxrs_high[__NUM_VXRS_HIGH];
74 unsigned char __reserved[128];
75 } _sigregs_ext;
76
77 struct sigcontext
78 {
79 unsigned long oldmask[_SIGCONTEXT_NSIG_WORDS];
80 _sigregs __user *sregs;
81 };
82
83
84 #endif
85
86
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