minix/sys/arch/arm/include/frame.h

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/* $NetBSD: frame.h,v 1.18 2013/08/18 05:07:19 matt Exp $ */
/*
* Copyright (c) 1994-1997 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Brini.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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.
*/
/*
* arm/frame.h - Stack frames structures common to arm26 and arm32
*/
#ifndef _ARM_FRAME_H_
#define _ARM_FRAME_H_
#ifndef _LOCORE
#include <sys/signal.h>
#include <sys/ucontext.h>
/*
* Trap frame. Pushed onto the kernel stack on a trap (synchronous exception).
*/
typedef struct trapframe {
register_t tf_spsr; /* Zero on arm26 */
register_t tf_fill; /* fill here so r0 will be dword aligned */
register_t tf_r0;
register_t tf_r1;
register_t tf_r2;
register_t tf_r3;
register_t tf_r4;
register_t tf_r5;
register_t tf_r6;
register_t tf_r7;
register_t tf_r8;
register_t tf_r9;
register_t tf_r10;
register_t tf_r11;
register_t tf_r12;
register_t tf_usr_sp;
register_t tf_usr_lr;
register_t tf_svc_sp; /* Not used on arm26 */
register_t tf_svc_lr; /* Not used on arm26 */
register_t tf_pc;
} trapframe_t;
/* Register numbers */
#define tf_ip tf_r12
#define tf_r13 tf_usr_sp
#define tf_r14 tf_usr_lr
#define tf_r15 tf_pc
#ifdef __PROG32
#define TRAP_USERMODE(tf) (((tf)->tf_spsr & PSR_MODE) == PSR_USR32_MODE)
#elif defined(__PROG26)
#define TRAP_USERMODE(tf) (((tf)->tf_r15 & R15_MODE) == R15_MODE_USR)
#endif
/*
* Signal frame. Pushed onto user stack before calling sigcode.
*/
#if defined(COMPAT_16) || defined(__minix)
struct sigframe_sigcontext {
#if defined(__minix)
struct sigcontext *sf_scp; /* Let sigreturn find sigcontext */
#endif /* defined(__minix) */
struct sigcontext sf_sc;
};
#endif
/* the pointers are use in the trampoline code to locate the ucontext */
struct sigframe_siginfo {
siginfo_t sf_si; /* actual saved siginfo */
ucontext_t sf_uc; /* actual saved ucontext */
};
#ifdef _KERNEL
__BEGIN_DECLS
void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *);
void *getframe(struct lwp *, int, int *);
__END_DECLS
#define lwp_trapframe(l) ((l)->l_md.md_tf)
#define lwp_settrapframe(l, tf) ((l)->l_md.md_tf = (tf))
#endif
#endif /* _LOCORE */
#endif /* _ARM_FRAME_H_ */
/* End of frame.h */