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

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  *  S390 version
   4  *
   5  *  Derived from "include/asm-i386/ucontext.h"
   6  */
   7
   8 #ifndef _ASM_S390_UCONTEXT_H
   9 #define _ASM_S390_UCONTEXT_H
  10
  11 #define UC_GPRS_HIGH    1       /* uc_mcontext_ext has valid high gprs */
  12 #define UC_VXRS         2       /* uc_mcontext_ext has valid vector regs */
  13
  14 /*
  15  * The struct ucontext_extended describes how the registers are stored
  16  * on a rt signal frame. Please note that the structure is not fixed,
  17  * if new CPU registers are added to the user state the size of the
  18  * struct ucontext_extended will increase.
  19  */
  20 struct ucontext_extended {
  21         unsigned long     uc_flags;
  22         struct ucontext  *uc_link;
  23         stack_t           uc_stack;
  24         _sigregs          uc_mcontext;
  25         sigset_t          uc_sigmask;
  26         /* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
  27         unsigned char     __unused[128 - sizeof(sigset_t)];
  28         _sigregs_ext      uc_mcontext_ext;
  29 };
  30
  31 struct ucontext {
  32         unsigned long     uc_flags;
  33         struct ucontext  *uc_link;
  34         stack_t           uc_stack;
  35         _sigregs          uc_mcontext;
  36         sigset_t          uc_sigmask;
  37         /* Allow for uc_sigmask growth.  Glibc uses a 1024-bit sigset_t.  */
  38         unsigned char     __unused[128 - sizeof(sigset_t)];
  39 };
  40
  41 #endif /* !_ASM_S390_UCONTEXT_H */