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 #include <sys/types.h> 30 31 /* 32 * The Kernel/Debugger interface. 33 * 34 * The Debugger -> Kernel portion of the interface is handled by the kdi_t, 35 * which is defined in the archkdi.h files. These functions are intended to 36 * be called only when the system is stopped and the debugger is in control. 37 * 38 * The Kernel -> Debugger portion is handled by the debugvec_t, which is 39 * defined here. These functions are used by the kernel to inform the debugger 40 * of various state changes. 41 */ 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /* 48 * The VA range reserved for the debugger; used by kmdb. 49 */ 50 extern const caddr_t kdi_segdebugbase; 51 extern const size_t kdi_segdebugsize; 52 53 struct cpu; 54 struct modctl; 55 struct gate_desc; 56 struct user_desc; 57 58 typedef struct kdi_debugvec kdi_debugvec_t; 59 typedef struct kdi kdi_t; 60 61 extern kdi_debugvec_t *kdi_dvec; 62 extern struct modctl *kdi_dmods; 63 64 #define KDI_VERSION 7 65 66 extern void kdi_dvec_vmready(void); 67 extern void kdi_dvec_memavail(void); 68 #if defined(__sparc) 69 extern void kdi_dvec_cpu_init(struct cpu *); 70 extern void kdi_dvec_cpr_restart(void); 71 #endif 72 extern void kdi_dvec_modavail(void); 73 extern void kdi_dvec_thravail(void); 74 extern void kdi_dvec_mod_loaded(struct modctl *); 75 extern void kdi_dvec_mod_unloading(struct modctl *); 76 77 /* 78 * The state machine described below is used to coordinate the efforts of 79 * kmdb and dtrace. As both use breakpoints, only one may be currently be 80 * active at a given time. Transitions are possible between the idle state 81 * and either of the active states, but not directly between the two active 82 * states. 83 */ 84 typedef enum kdi_dtrace_set { 85 KDI_DTSET_DTRACE_ACTIVATE, 86 KDI_DTSET_DTRACE_DEACTIVATE, 87 KDI_DTSET_KMDB_BPT_ACTIVATE, 88 KDI_DTSET_KMDB_BPT_DEACTIVATE 89 } kdi_dtrace_set_t; 90 91 typedef enum { 92 KDI_DTSTATE_DTRACE_ACTIVE, 93 KDI_DTSTATE_IDLE, 94 KDI_DTSTATE_KMDB_BPT_ACTIVE 95 } kdi_dtrace_state_t; 96 97 extern int kdi_dtrace_set(kdi_dtrace_set_t); 98 99 #ifdef __cplusplus 100 } 101 #endif 102 103 #endif /* _KDI_H */ 104