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sigcontext.h

/*
 *  include/asm-s390/sigcontext.h
 *
 *  S390 version
 *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
 */

#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


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