1 /*- 2 * Copyright (c) 2014 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Semihalf under 6 * the sponsorship of the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _MACHINE_DEBUG_MONITOR_H_ 33 #define _MACHINE_DEBUG_MONITOR_H_ 34 35 #ifdef DDB 36 37 #include <machine/db_machdep.h> 38 39 enum dbg_access_t { 40 HW_BREAKPOINT_X = 0, 41 HW_WATCHPOINT_R = 1, 42 HW_WATCHPOINT_W = 2, 43 HW_WATCHPOINT_RW = HW_WATCHPOINT_R | HW_WATCHPOINT_W, 44 }; 45 46 #if __ARM_ARCH >= 6 47 void dbg_monitor_init(void); 48 void dbg_show_watchpoint(void); 49 int dbg_setup_watchpoint(db_expr_t, db_expr_t, enum dbg_access_t); 50 int dbg_remove_watchpoint(db_expr_t, db_expr_t); 51 void dbg_resume_dbreg(void); 52 #else /* __ARM_ARCH >= 6 */ 53 static __inline void 54 dbg_show_watchpoint(void) 55 { 56 } 57 static __inline int 58 dbg_setup_watchpoint(db_expr_t addr __unused, db_expr_t size __unused, 59 enum dbg_access_t access __unused) 60 { 61 return (ENXIO); 62 } 63 static __inline int 64 dbg_remove_watchpoint(db_expr_t addr __unused, db_expr_t size __unused) 65 { 66 return (ENXIO); 67 } 68 static __inline void 69 dbg_monitor_init(void) 70 { 71 } 72 73 static __inline void 74 dbg_resume_dbreg(void) 75 { 76 } 77 #endif /* __ARM_ARCH < 6 */ 78 79 #else /* DDB */ 80 static __inline void 81 dbg_monitor_init(void) 82 { 83 } 84 #endif 85 86 #endif /* _MACHINE_DEBUG_MONITOR_H_ */ 87