sigcontext.h

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/*
 *  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;
    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