15dc1d4452
Add wrappers around the dbreg interface that can be consumed by MI kernel debugger code. The dbreg functions themselves are updated to return error codes, not just -1. dbreg_set_watchpoint() is extended to accept access bits as an argument. Reviewed by: jhb, kib, markj MFC after: 3 weeks Sponsored by: NetApp, Inc. Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D29155
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2004 Marcel Moolenaar
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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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* $FreeBSD$
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*/
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#ifndef _MACHINE_KDB_H_
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#define _MACHINE_KDB_H_
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#include <machine/frame.h>
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#include <machine/psl.h>
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#define KDB_STOPPEDPCB(pc) &stoppcbs[pc->pc_cpuid]
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int kdb_cpu_set_watchpoint(vm_offset_t addr, vm_size_t size, int access);
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int kdb_cpu_clr_watchpoint(vm_offset_t addr, vm_size_t size);
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static __inline void
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kdb_cpu_clear_singlestep(void)
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{
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kdb_frame->tf_eflags &= ~PSL_T;
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}
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static __inline void
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kdb_cpu_set_singlestep(void)
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{
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kdb_frame->tf_eflags |= PSL_T;
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}
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static __inline void
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kdb_cpu_sync_icache(unsigned char *addr, size_t size)
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{
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}
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static __inline void
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kdb_cpu_trap(int type, int code)
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{
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}
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#endif /* _MACHINE_KDB_H_ */
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