LXR linux/arch/s390/include/uapi/asm/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#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
  41typedef struct 
  42{
  43        unsigned long mask;
  44        unsigned long addr;
  45} __attribute__ ((aligned(8))) _psw_t;
  46
  47typedef struct
  48{
  49        _psw_t psw;
  50        unsigned long gprs[__NUM_GPRS];
  51        unsigned int  acrs[__NUM_ACRS];
  52} _s390_regs_common;
  53
  54typedef struct
  55{
  56        unsigned int fpc;
  57        unsigned int pad;
  58        double   fprs[__NUM_FPRS];
  59} _s390_fp_regs;
  60
  61typedef struct
  62{
  63        _s390_regs_common regs;
  64        _s390_fp_regs     fpregs;
  65} _sigregs;
  66
  67typedef 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
  77struct sigcontext
  78{
  79        unsigned long   oldmask[_SIGCONTEXT_NSIG_WORDS];
  80        _sigregs        __user *sregs;
  81};
  82
  83
  84#endif
  85
  86