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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _KDI_H 28 #define _KDI_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 /* 33 * The Kernel/Debugger interface. 34 * 35 * The Debugger -> Kernel portion of the interface is handled by the kdi_t, 36 * which is defined in the archkdi.h files. These functions are intended to 37 * be called only when the system is stopped and the debugger is in control. 38 * 39 * The Kernel -> Debugger portion is handled by the debugvec_t, which is 40 * defined here. These functions are used by the kernel to inform the debugger 41 * of various state changes. 42 */ 43 44 #ifdef __cplusplus 45 extern "C" { 46 #endif 47 48 /* The VA range reserved for the debugger. */ 49 #if defined(__sparc) 50 #define SEGDEBUGBASE 0xedd00000 51 #define SEGDEBUGSIZE (0xf0000000 - SEGDEBUGBASE) 52 #elif defined(__amd64) 53 #define SEGDEBUGBASE 0xffffffffff800000 54 #define SEGDEBUGSIZE 0x400000 55 #else 56 #define SEGDEBUGBASE 0xff800000 57 #define SEGDEBUGSIZE 0x400000 58 #endif 59 60 struct cpu; 61 struct modctl; 62 struct gate_desc; 63 struct user_desc; 64 65 typedef struct kdi_debugvec kdi_debugvec_t; 66 typedef struct kdi kdi_t; 67 68 extern kdi_debugvec_t *kdi_dvec; 69 70 #define KDI_VERSION 6 71 72 extern void kdi_dvec_enter(void); 73 extern void kdi_dvec_cpu_init(struct cpu *); 74 #if defined(__i386) || defined(__amd64) 75 extern void kdi_dvec_idt_sync(struct gate_desc *); 76 #endif /* __i386 || __amd64 */ 77 extern void kdi_dvec_vmready(void); 78 extern void kdi_dvec_memavail(void); 79 #if defined(__sparc) 80 extern void kdi_dvec_cpr_restart(void); 81 #endif 82 extern void kdi_dvec_modavail(void); 83 extern void kdi_dvec_thravail(void); 84 extern void kdi_dvec_mod_loaded(struct modctl *); 85 extern void kdi_dvec_mod_unloading(struct modctl *); 86 87 /* 88 * The state machine described below is used to coordinate the efforts of 89 * kmdb and dtrace. As both use breakpoints, only one may be currently be 90 * active at a given time. Transitions are possible between the idle state 91 * and either of the active states, but not directly between the two active 92 * states. 93 */ 94 typedef enum kdi_dtrace_set { 95 KDI_DTSET_DTRACE_ACTIVATE, 96 KDI_DTSET_DTRACE_DEACTIVATE, 97 KDI_DTSET_KMDB_BPT_ACTIVATE, 98 KDI_DTSET_KMDB_BPT_DEACTIVATE 99 } kdi_dtrace_set_t; 100 101 typedef enum { 102 KDI_DTSTATE_DTRACE_ACTIVE, 103 KDI_DTSTATE_IDLE, 104 KDI_DTSTATE_KMDB_BPT_ACTIVE 105 } kdi_dtrace_state_t; 106 107 extern int kdi_dtrace_set(kdi_dtrace_set_t); 108 109 #ifdef __cplusplus 110 } 111 #endif 112 113 #endif /* _KDI_H */ 114