1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _KDI_H 27 #define _KDI_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/types.h> 32 33 /* 34 * The Kernel/Debugger interface. 35 * 36 * The Debugger -> Kernel portion of the interface is handled by the kdi_t, 37 * which is defined in the archkdi.h files. These functions are intended to 38 * be called only when the system is stopped and the debugger is in control. 39 * 40 * The Kernel -> Debugger portion is handled by the debugvec_t, which is 41 * defined here. These functions are used by the kernel to inform the debugger 42 * of various state changes. 43 */ 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 /* 50 * The VA range reserved for the debugger; used by kmdb. 51 */ 52 extern const caddr_t kdi_segdebugbase; 53 extern const size_t kdi_segdebugsize; 54 55 struct cpu; 56 struct modctl; 57 struct gate_desc; 58 struct user_desc; 59 60 typedef struct kdi_debugvec kdi_debugvec_t; 61 typedef struct kdi kdi_t; 62 63 extern kdi_debugvec_t *kdi_dvec; 64 extern struct modctl *kdi_dmods; 65 66 #define KDI_VERSION 7 67 68 extern void kdi_dvec_vmready(void); 69 extern void kdi_dvec_memavail(void); 70 #if defined(__sparc) 71 extern void kdi_dvec_cpu_init(struct cpu *); 72 extern void kdi_dvec_cpr_restart(void); 73 #endif 74 extern void kdi_dvec_modavail(void); 75 extern void kdi_dvec_thravail(void); 76 extern void kdi_dvec_mod_loaded(struct modctl *); 77 extern void kdi_dvec_mod_unloading(struct modctl *); 78 79 /* 80 * The state machine described below is used to coordinate the efforts of 81 * kmdb and dtrace. As both use breakpoints, only one may be currently be 82 * active at a given time. Transitions are possible between the idle state 83 * and either of the active states, but not directly between the two active 84 * states. 85 */ 86 typedef enum kdi_dtrace_set { 87 KDI_DTSET_DTRACE_ACTIVATE, 88 KDI_DTSET_DTRACE_DEACTIVATE, 89 KDI_DTSET_KMDB_BPT_ACTIVATE, 90 KDI_DTSET_KMDB_BPT_DEACTIVATE 91 } kdi_dtrace_set_t; 92 93 typedef enum { 94 KDI_DTSTATE_DTRACE_ACTIVE, 95 KDI_DTSTATE_IDLE, 96 KDI_DTSTATE_KMDB_BPT_ACTIVE 97 } kdi_dtrace_state_t; 98 99 extern int kdi_dtrace_set(kdi_dtrace_set_t); 100 101 #ifdef __cplusplus 102 } 103 #endif 104 105 #endif /* _KDI_H */ 106