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/*
* Copyright (C) 2012 ARM Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _UAPI__ASM_SIGCONTEXT_H
#define _UAPI__ASM_SIGCONTEXT_H
#include <linux/types.h>
/*
* Signal context structure - contains all info to do with the state
* before the signal handler was invoked.
*/
struct sigcontext {
__u64 fault_address;
/* AArch64 registers */
__u64 regs[31];
__u64 sp;
__u64 pc;
__u64 pstate;
/* 4K reserved for FP/SIMD state and future expansion */
__u8 __reserved[4096] __attribute__((__aligned__(16)));
};
/*
* Header to be used at the beginning of structures extending the user
* context. Such structures must be placed after the rt_sigframe on the stack
* and be 16-byte aligned. The last structure must be a dummy one with the
* magic and size set to 0.
*/
struct _aarch64_ctx {
__u32 magic;
__u32 size;
};
#define FPSIMD_MAGIC 0x46508001
struct fpsimd_context {
struct _aarch64_ctx head;
__u32 fpsr;
__u32 fpcr;
__uint128_t vregs[32];
};
/* ESR_EL1 context */
#define ESR_MAGIC 0x45535201
struct esr_context {
struct _aarch64_ctx head;
__u64 esr;
};
#endif /* _UAPI__ASM_SIGCONTEXT_H */