arch/s390/include/asm/sigcontext.h

   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 #include <linux/compiler.h>
  12
  13 #define __NUM_GPRS 16
  14 #define __NUM_FPRS 16
  15 #define __NUM_ACRS 16
  16
  17 #ifndef __s390x__
  18
  19 /* Has to be at least _NSIG_WORDS from asm/signal.h */
  20 #define _SIGCONTEXT_NSIG        64
  21 #define _SIGCONTEXT_NSIG_BPW    32
  22 /* Size of stack frame allocated when calling signal handler. */
  23 #define __SIGNAL_FRAMESIZE      96
  24
  25 #else /* __s390x__ */
  26
  27 /* Has to be at least _NSIG_WORDS from asm/signal.h */
  28 #define _SIGCONTEXT_NSIG        64
  29 #define _SIGCONTEXT_NSIG_BPW    64
  30 /* Size of stack frame allocated when calling signal handler. */
  31 #define __SIGNAL_FRAMESIZE      160
  32
  33 #endif /* __s390x__ */
  34
  35 #define _SIGCONTEXT_NSIG_WORDS  (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
  36 #define _SIGMASK_COPY_SIZE      (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
  37
  38 typedef struct
  39 {
  40         unsigned long mask;
  41         unsigned long addr;
  42 } __attribute__ ((aligned(8))) _psw_t;
  43
  44 typedef struct
  45 {
  46         _psw_t psw;
  47         unsigned long gprs[__NUM_GPRS];
  48         unsigned int  acrs[__NUM_ACRS];
  49 } _s390_regs_common;
  50
  51 typedef struct
  52 {
  53         unsigned int fpc;
  54         double   fprs[__NUM_FPRS];
  55 } _s390_fp_regs;
  56
  57 typedef struct
  58 {
  59         _s390_regs_common regs;
  60         _s390_fp_regs     fpregs;
  61 } _sigregs;
  62
  63 struct sigcontext
  64 {
  65         unsigned long   oldmask[_SIGCONTEXT_NSIG_WORDS];
  66         _sigregs        __user *sregs;
  67 };
  68
  69
  70 #endif
  71