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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/arm/include/gdb_machdep.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2006 Olivier Houchard

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 * All rights reserved.

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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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 *

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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 ``AS IS'' AND ANY EXPRESS OR

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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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 */

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#ifndef _MACHINE_GDB_MACHDEP_H_

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#define	_MACHINE_GDB_MACHDEP_H_

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#define	GDB_BUFSZ	400

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#define	GDB_NREGS	26

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#define	GDB_REG_SP	13

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#define	GDB_REG_LR	14

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#define	GDB_REG_PC	15

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static __inline size_t

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gdb_cpu_regsz(int regnum)

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{

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	/*

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	 * GDB expects the FPA registers f0-f7, each 96 bits wide, to be placed

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	 * in between the PC and CSPR in response to a "g" packet.

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	 */

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	return (regnum >= 16 && regnum <= 23 ? 12 : sizeof(int));

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}

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static __inline int

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gdb_cpu_query(void)

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{

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	return (0);

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}

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static __inline void *

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gdb_begin_write(void)

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{

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	return (NULL);

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}

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static __inline void

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gdb_end_write(void *arg __unused)

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{

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}

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static __inline void

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gdb_cpu_stop_reason(int type __unused, int code __unused)

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{

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}

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void *gdb_cpu_getreg(int, size_t *);

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void gdb_cpu_setreg(int, void *);

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int gdb_cpu_signal(int, int);

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#endif /* !_MACHINE_GDB_MACHDEP_H_ */

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