2ecbbcc7ca
For the Exception Syndrome Register, ESR_ELx, the upper 32b were previously unused, but now may contain additional exception info as of Armv8.7 (FEAT_LS64). Extend ESR from u32->u64 in exception handling code to support this. In addition, also extend Saved Program Status Register SPSR_ELx in the same way to allow for future extensions. Reviewed by: andrew Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D38983
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/*-
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* Copyright (c) 2014 Andrew Turner
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* Copyright (c) 2014-2015 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Andrew Turner under
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* sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_UCONTEXT_H_
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#define _MACHINE_UCONTEXT_H_
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struct gpregs {
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__register_t gp_x[30];
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__register_t gp_lr;
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__register_t gp_sp;
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__register_t gp_elr;
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__uint64_t gp_spsr;
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};
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struct fpregs {
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__uint128_t fp_q[32];
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__uint32_t fp_sr;
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__uint32_t fp_cr;
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int fp_flags;
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int fp_pad;
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};
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struct __mcontext {
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struct gpregs mc_gpregs;
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struct fpregs mc_fpregs;
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int mc_flags;
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#define _MC_FP_VALID 0x1 /* Set when mc_fpregs has valid data */
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int mc_pad; /* Padding */
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__uint64_t mc_spare[8]; /* Space for expansion, set to zero */
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};
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typedef struct __mcontext mcontext_t;
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#ifdef COMPAT_FREEBSD32
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#include <compat/freebsd32/freebsd32_signal.h>
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typedef struct __mcontext32 {
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uint32_t mc_gregset[17];
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uint32_t mc_vfp_size;
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uint32_t mc_vfp_ptr;
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uint32_t mc_spare[33];
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} mcontext32_t;
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typedef struct __ucontext32 {
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sigset_t uc_sigmask;
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mcontext32_t uc_mcontext;
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u_int32_t uc_link;
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struct sigaltstack32 uc_stack;
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u_int32_t uc_flags;
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u_int32_t __spare__[4];
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} ucontext32_t;
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typedef struct __mcontext32_vfp {
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__uint64_t mcv_reg[32];
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__uint32_t mcv_fpscr;
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} mcontext32_vfp_t;
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#endif /* COMPAT_FREEBSD32 */
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#endif /* !_MACHINE_UCONTEXT_H_ */
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