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NetBSD/sys/arch/arm/include/undefined.h

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merge ktrace-lwp.
2005-12-11 15:16:03 +03:00
/* $NetBSD: undefined.h,v 1.10 2005/12/11 12:16:47 christos Exp $ */
Big patch for merging common include files of the new hpcarm tree and the old arm32 tree into the new arm substree. All moved files are relinked with a stub that included the file from the new location; this might be done better later.
2001-02-24 00:23:45 +03:00
/*
* Copyright (c) 1995-1996 Mark Brinicombe.
* Copyright (c) 1995 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.
*
* RiscBSD kernel project
*
* undefined.h
*
* Undefined instruction types, symbols and prototypes
*
* Created : 08/02/95
*/
Change undefined instruction handler to use a linked list for each co-processor. This is necessary so we can have several handlers for CP0 (used as a catch-all for non-CP instructions). Handlers are now removed using remove_coproc_handler(), rather than by calling install_coproc_handler() with a NULL handler. Because install_coproc_handler() can now allocate memory, there's a version for use at boot time that doesn't.
2001-03-11 19:18:39 +03:00
#ifndef _ARM_UNDEFINED_H_
#define _ARM_UNDEFINED_H_
Big patch for merging common include files of the new hpcarm tree and the old arm32 tree into the new arm substree. All moved files are relinked with a stub that included the file from the new location; this might be done better later.
2001-02-24 00:23:45 +03:00
#ifdef _KERNEL
Change undefined instruction handler to use a linked list for each co-processor. This is necessary so we can have several handlers for CP0 (used as a catch-all for non-CP instructions). Handlers are now removed using remove_coproc_handler(), rather than by calling install_coproc_handler() with a NULL handler. Because install_coproc_handler() can now allocate memory, there's a version for use at boot time that doesn't.
2001-03-11 19:18:39 +03:00
#include <sys/queue.h>
Big patch for merging common include files of the new hpcarm tree and the old arm32 tree into the new arm substree. All moved files are relinked with a stub that included the file from the new location; this might be done better later.
2001-02-24 00:23:45 +03:00
typedef int (*undef_handler_t) __P((unsigned int, unsigned int, trapframe_t *, int));
Convert the coprocessor defines into an enum to avoid excessive preprocessor hackery. If supporting Thumb add an 18th undefined handler for undefined instruction traps taken in Thumb state. Kill MAX_COPROCS and use NUM_UNKNOWN_HANDLERS instead. Add support for breakpoints set in Thumb code and hand them off to GDB as required.
2004-08-21 16:03:16 +04:00
/*
* Enumeration of coprocessor numbers. Values may be duplicated
* (the iWMMX coprocessor clashes with the FPA, for example), but
* keep this table in numeric order.
Don't overload the unknown instruction handling for the core onto CP0. Instead, add a seventeenth 'co-processor' specifically for the core. Add support for ARMv5 unknown instructions in the 'NV' space.
2004-08-07 15:45:41 +04:00
*/
Convert the coprocessor defines into an enum to avoid excessive preprocessor hackery. If supporting Thumb add an 18th undefined handler for undefined instruction traps taken in Thumb state. Kill MAX_COPROCS and use NUM_UNKNOWN_HANDLERS instead. Add support for breakpoints set in Thumb code and hand them off to GDB as required.
2004-08-21 16:03:16 +04:00
enum arm_coprocs {
FPA_COPROC = 1,
FPA_COPROC2 = 2,
DEBUG_COPROC = 14,
SYSTEM_COPROC = 15,
/*
*The following are not really co-processors, but are on the end
* of the unknown instruction table for each coproc.
*/
CORE_UNKNOWN_HANDLER = 16,
#ifdef THUMB_CODE
THUMB_UNKNOWN_HANDLER = 17,
#endif
NUM_UNKNOWN_HANDLERS /* Last entry */
};
Don't overload the unknown instruction handling for the core onto CP0. Instead, add a seventeenth 'co-processor' specifically for the core. Add support for ARMv5 unknown instructions in the 'NV' space.
2004-08-07 15:45:41 +04:00
Big patch for merging common include files of the new hpcarm tree and the old arm32 tree into the new arm substree. All moved files are relinked with a stub that included the file from the new location; this might be done better later.
2001-02-24 00:23:45 +03:00
/* Prototypes for undefined.c */
Change undefined instruction handler to use a linked list for each co-processor. This is necessary so we can have several handlers for CP0 (used as a catch-all for non-CP instructions). Handlers are now removed using remove_coproc_handler(), rather than by calling install_coproc_handler() with a NULL handler. Because install_coproc_handler() can now allocate memory, there's a version for use at boot time that doesn't.
2001-03-11 19:18:39 +03:00
void *install_coproc_handler __P((int, undef_handler_t));
void remove_coproc_handler __P((void *));
Big patch for merging common include files of the new hpcarm tree and the old arm32 tree into the new arm substree. All moved files are relinked with a stub that included the file from the new location; this might be done better later.
2001-02-24 00:23:45 +03:00
void undefined_init __P((void));
Change undefined instruction handler to use a linked list for each co-processor. This is necessary so we can have several handlers for CP0 (used as a catch-all for non-CP instructions). Handlers are now removed using remove_coproc_handler(), rather than by calling install_coproc_handler() with a NULL handler. Because install_coproc_handler() can now allocate memory, there's a version for use at boot time that doesn't.
2001-03-11 19:18:39 +03:00
/*
* XXX Stuff below here is for use before malloc() is available. Most code
* shouldn't use it.
*/
struct undefined_handler {
LIST_ENTRY(undefined_handler) uh_link;
undef_handler_t uh_handler;
};
/*
* Handlers installed using install_coproc_handler_static shouldn't be
* removed.
*/
void install_coproc_handler_static __P((int, struct undefined_handler *));
Add prototypes for undefinedinstruction() and resethandler().
2001-11-16 16:12:06 +03:00
/* Calls up to undefined.c from trap handlers */
void undefinedinstruction(struct trapframe *);
Big patch for merging common include files of the new hpcarm tree and the old arm32 tree into the new arm substree. All moved files are relinked with a stub that included the file from the new location; this might be done better later.
2001-02-24 00:23:45 +03:00
#endif
/* End of undefined.h */
Change undefined instruction handler to use a linked list for each co-processor. This is necessary so we can have several handlers for CP0 (used as a catch-all for non-CP instructions). Handlers are now removed using remove_coproc_handler(), rather than by calling install_coproc_handler() with a NULL handler. Because install_coproc_handler() can now allocate memory, there's a version for use at boot time that doesn't.
2001-03-11 19:18:39 +03:00
#endif /* _ARM_UNDEFINED_H_ */