arch/s390/include/uapi/asm/sigcontext.h

   1 /*
   2  *  S390 version
   3  *    Copyright IBM Corp. 1999, 2000
   4  */
   5
   6 #ifndef _ASM_S390_SIGCONTEXT_H
   7 #define _ASM_S390_SIGCONTEXT_H
   8
   9 #include <linux/compiler.h>
  10
  11 #define __NUM_GPRS 16
  12 #define __NUM_FPRS 16
  13 #define __NUM_ACRS 16
  14
  15 #ifndef __s390x__
  16
  17 /* Has to be at least _NSIG_WORDS from asm/signal.h */
  18 #define _SIGCONTEXT_NSIG        64
  19 #define _SIGCONTEXT_NSIG_BPW    32
  20 /* Size of stack frame allocated when calling signal handler. */
  21 #define __SIGNAL_FRAMESIZE      96
  22
  23 #else /* __s390x__ */
  24
  25 /* Has to be at least _NSIG_WORDS from asm/signal.h */
  26 #define _SIGCONTEXT_NSIG        64
  27 #define _SIGCONTEXT_NSIG_BPW    64
  28 /* Size of stack frame allocated when calling signal handler. */
  29 #define __SIGNAL_FRAMESIZE      160
  30
  31 #endif /* __s390x__ */
  32
  33 #define _SIGCONTEXT_NSIG_WORDS  (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
  34 #define _SIGMASK_COPY_SIZE      (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
  35
  36 typedef struct
  37 {
  38         unsigned long mask;
  39         unsigned long addr;
  40 } __attribute__ ((aligned(8))) _psw_t;
  41
  42 typedef struct
  43 {
  44         _psw_t psw;
  45         unsigned long gprs[__NUM_GPRS];
  46         unsigned int  acrs[__NUM_ACRS];
  47 } _s390_regs_common;
  48
  49 typedef struct
  50 {
  51         unsigned int fpc;
  52         unsigned int pad;
  53         double   fprs[__NUM_FPRS];
  54 } _s390_fp_regs;
  55
  56 typedef struct
  57 {
  58         _s390_regs_common regs;
  59         _s390_fp_regs     fpregs;
  60 } _sigregs;
  61
  62 struct sigcontext
  63 {
  64         unsigned long   oldmask[_SIGCONTEXT_NSIG_WORDS];
  65         _sigregs        __user *sregs;
  66 };
  67
  68
  69 #endif
  70