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
  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