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