bfcdefd8aa
PCB in which the context of stopped CPUs is stored. To access this PCB from KDB, we introduce a new define, called KDB_STOPPEDPCB. The definition, when present, lives in <machine/kdb.h> and abstracts where MD code saves the context. Define KDB_STOPPEDPCB on i386, amd64, alpha and sparc64 in accordance to previous code.
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*-
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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/cpufunc.h>
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#include <machine/frame.h>
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#include <machine/ia64_cpu.h>
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#define KDB_STOPPEDPCB(pc) (pc)->pc_pcb
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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_special.psr &= ~IA64_PSR_SS;
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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_special.psr |= IA64_PSR_SS;
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}
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static __inline void
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kdb_cpu_trap(int vector, int _)
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{
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__asm __volatile("flushrs;;");
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if (vector == IA64_VEC_BREAK &&
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kdb_frame->tf_special.ifa == IA64_FIXED_BREAK)
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kdb_frame->tf_special.psr += IA64_PSR_RI_1;
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}
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#endif /* _MACHINE_KDB_H_ */
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