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/* $NetBSD: mcontext.h,v 1.10 2019/12/27 00:32:17 kamil Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Klaus Klein.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _VAX_MCONTEXT_H_
#define _VAX_MCONTEXT_H_
/*
* Layout of mcontext_t.
* As on Alpha, this maps directly to `struct reg'.
*/
#define _NGREG 17 /* R0-31, AP, SP, FP, PC, PSL */
typedef int __greg_t;
typedef __greg_t __gregset_t[_NGREG];
#define _REG_R0 0
#define _REG_R1 1
#define _REG_R2 2
#define _REG_R3 3
#define _REG_R4 4
#define _REG_R5 5
#define _REG_R6 6
#define _REG_R7 7
#define _REG_R8 8
#define _REG_R9 9
#define _REG_R10 10
#define _REG_R11 11
#define _REG_AP 12
#define _REG_FP 13
#define _REG_SP 14
#define _REG_PC 15
#define _REG_PSL 16
typedef struct {
__gregset_t __gregs; /* General Purpose Register set */
} mcontext_t;
/* Machine-dependent uc_flags */
#define _UC_TLSBASE 0x00080000
#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
#define _UC_MACHINE_FP(uc) ((uc)->uc_mcontext.__gregs[_REG_FP])
#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R0])
#define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
#if defined(_RTLD_SOURCE) || defined(_LIBC_SOURCE) || \
defined(__LIBPTHREAD_SOURCE__)
#include <sys/tls.h>
#include <sys/syscall.h>
__BEGIN_DECLS
static __inline void *
__lwp_getprivate_fast(void)
{
register void *tcb __asm("r0");
__asm("chmk %0" :: "i"(SYS__lwp_getprivate) : "r0");
return tcb;
}
__END_DECLS
#endif
#endif /* !_VAX_MCONTEXT_H_ */
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