freebsd-skq/sys/arm64/include/kdb.h
Mitchell Horne 3ef68bc62c arm64: implement kdb watchpoint functions
Add wrappers around the debug_monitor interface, to be consumed by MI
kernel debugger code.  Update dbg_setup_watchpoint() and
dbg_remove_watchpoint() to return specific error codes, not just -1.

Reviewed by:	jhb, kib, markj
MFC after:	3 weeks
Sponsored by:	NetApp, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D29155
2021-03-29 12:05:43 -03:00

58 lines
2.0 KiB
C

/*-
* Copyright (c) 2014 Andrew Turner
* Copyright (c) 2015 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Semihalf under
* sponsorship from the FreeBSD Foundation.
*
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_KDB_H_
#define _MACHINE_KDB_H_
#include <machine/cpufunc.h>
#define KDB_STOPPEDPCB(pc) &stoppcbs[pc->pc_cpuid]
void kdb_cpu_clear_singlestep(void);
void kdb_cpu_set_singlestep(void);
int kdb_cpu_set_watchpoint(vm_offset_t addr, size_t size, int access);
int kdb_cpu_clr_watchpoint(vm_offset_t addr, size_t size);
static __inline void
kdb_cpu_sync_icache(unsigned char *addr, size_t size)
{
cpu_icache_sync_range((vm_offset_t)addr, size);
}
static __inline void
kdb_cpu_trap(int type, int code)
{
}
#endif /* _MACHINE_KDB_H_ */