1 /*- 2 * Copyright (c) 2004 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _MACHINE_KDB_H_ 30 #define _MACHINE_KDB_H_ 31 32 #include <machine/cpufunc.h> 33 34 #define KDB_STOPPEDPCB(pc) &stoppcbs[pc->pc_cpuid] 35 36 static __inline void 37 kdb_cpu_clear_singlestep(void) 38 { 39 } 40 41 static __inline void 42 kdb_cpu_set_singlestep(void) 43 { 44 } 45 46 static __inline void 47 kdb_cpu_sync_icache(unsigned char *addr, size_t size) 48 { 49 50 /* 51 * Other CPUs flush their instruction cache when resuming from 52 * IPI_STOP. 53 */ 54 fence_i(); 55 } 56 57 static __inline void 58 kdb_cpu_trap(int type, int code) 59 { 60 } 61 62 static __inline int 63 kdb_cpu_set_watchpoint(vm_offset_t addr, vm_size_t size, int access) 64 { 65 66 return (ENXIO); 67 } 68 69 static __inline int 70 kdb_cpu_clr_watchpoint(vm_offset_t addr, vm_size_t size) 71 { 72 73 return (0); 74 } 75 76 #endif /* _MACHINE_KDB_H_ */ 77