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

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  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 */
 42 

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