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 */
20struct 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
31struct 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 */