debug_monitor.h

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    1 /*-
    2  * Copyright (c) 2014 The FreeBSD Foundation
    3  *
    4  * This software was developed by Semihalf under
    5  * the sponsorship of the FreeBSD Foundation.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  */
   30 
   31 #ifndef _MACHINE_DEBUG_MONITOR_H_
   32 #define _MACHINE_DEBUG_MONITOR_H_
   33 
   34 #define DBG_BRP_MAX     16
   35 #define DBG_WRP_MAX     16
   36 
   37 struct debug_monitor_state {
   38         uint32_t        dbg_enable_count;
   39         uint32_t        dbg_flags;
   40 #define DBGMON_ENABLED          (1 << 0)
   41 #define DBGMON_KERNEL           (1 << 1)
   42         uint64_t        dbg_bcr[DBG_BRP_MAX];
   43         uint64_t        dbg_bvr[DBG_BRP_MAX];
   44         uint64_t        dbg_wcr[DBG_WRP_MAX];
   45         uint64_t        dbg_wvr[DBG_WRP_MAX];
   46 };
   47 
   48 #ifdef _KERNEL
   49 
   50 enum dbg_access_t {
   51         HW_BREAKPOINT_X         = 0,
   52         HW_BREAKPOINT_R         = 1,
   53         HW_BREAKPOINT_W         = 2,
   54         HW_BREAKPOINT_RW        = HW_BREAKPOINT_R | HW_BREAKPOINT_W,
   55 };
   56 
   57 void dbg_monitor_init(void);
   58 void dbg_register_sync(struct debug_monitor_state *);
   59 int dbg_setup_watchpoint(struct debug_monitor_state *, vm_offset_t, vm_size_t,
   60     enum dbg_access_t);
   61 int dbg_remove_watchpoint(struct debug_monitor_state *, vm_offset_t, vm_size_t);
   62 
   63 #ifdef DDB
   64 void dbg_show_watchpoint(void);
   65 #endif
   66 
   67 #endif /* _KERNEL */
   68 
   69 #endif /* _MACHINE_DEBUG_MONITOR_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/arm64/include/debug_monitor.h

FreeBSD/Linux Kernel Cross Reference
sys/arm64/include/debug_monitor.h