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freebsd/sys/arm64/include/ucontext.h
Andrew Turner 23f518054b Add space for future expansion [1]. While here clean up a little, spsr is
only 32-bits, and mark the holes in the struct with a pad member.

Suggested by:	kib [1]
Sponsored by:	The FreeBSD Foundation
2015-04-03 10:56:42 +00:00

65 lines
2.1 KiB
C

/*-
* Copyright (c) 2014 Andrew Turner
* Copyright (c) 2014-2015 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Andrew Turner under
* sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_UCONTEXT_H_
#define _MACHINE_UCONTEXT_H_
struct gpregs {
unsigned long long gp_x[30];
unsigned long long gp_lr;
unsigned long long gp_sp;
unsigned long long gp_elr;
uint32_t gp_spsr;
u_int gp_pad;
};
struct fpregs {
__uint128_t fp_q[32];
uint32_t fp_sr;
uint32_t fp_cr;
u_int fp_flags;
u_int fp_pad;
};
struct __mcontext {
struct gpregs mc_gpregs;
struct fpregs mc_fpregs;
u_int mc_flags;
#define _MC_FP_VALID 0x1 /* Set when mc_fpregs has valid data */
u_int mc_pad; /* Padding */
uint64_t mc_spare[8]; /* Space for expansion, set to zero */
};
typedef struct __mcontext mcontext_t;
#endif /* !_MACHINE_UCONTEXT_H_ */