1 /*
2  *  include/asm-s390/sigcontext.h
3  *
4  *  S390 version
5  *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
6  */
7 
8 #ifndef _ASM_S390_SIGCONTEXT_H
9 #define _ASM_S390_SIGCONTEXT_H
10 
11 #define __NUM_GPRS 16
12 #define __NUM_FPRS 16
13 #define __NUM_ACRS 16
14 
15 /*
16   Has to be at least _NSIG_WORDS from asm/signal.h
17  */
18 #define _SIGCONTEXT_NSIG      64
19 #define _SIGCONTEXT_NSIG_BPW  32
20 /* Size of stack frame allocated when calling signal handler. */
21 #define __SIGNAL_FRAMESIZE	96
22 #define _SIGCONTEXT_NSIG_WORDS	(_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
23 #define _SIGMASK_COPY_SIZE	(sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
24 
25 typedef struct
26 {
27         unsigned long mask;
28         unsigned long addr;
29 } __attribute__ ((aligned(8))) _psw_t;
30 
31 typedef struct
32 {
33 	_psw_t psw;
34 	unsigned long gprs[__NUM_GPRS];
35 	unsigned int  acrs[__NUM_ACRS];
36 } _s390_regs_common;
37 
38 typedef struct
39 {
40 	unsigned int fpc;
41 	double   fprs[__NUM_FPRS];
42 } _s390_fp_regs;
43 
44 typedef struct
45 {
46 	_s390_regs_common regs;
47 	_s390_fp_regs     fpregs;
48 } _sigregs;
49 
50 struct sigcontext
51 {
52 	unsigned long	oldmask[_SIGCONTEXT_NSIG_WORDS];
53 	_sigregs        *sregs;
54 };
55 
56 
57 #endif
58 
59