| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. The rights granted to you under the License |
| | 10 | * may not be used to create, or enable the creation or redistribution of, |
| | 11 | * unlawful or unlicensed copies of an Apple operating system, or to |
| | 12 | * circumvent, violate, or enable the circumvention or violation of, any |
| | 13 | * terms of an Apple operating system software license agreement. |
| | 14 | * |
| | 15 | * Please obtain a copy of the License at |
| | 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
| | 17 | * |
| | 18 | * The Original Code and all software distributed under the License are |
| | 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 23 | * Please see the License for the specific language governing rights and |
| | 24 | * limitations under the License. |
| | 25 | * |
| | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| | 27 | */ |
| | 28 | /* |
| | 29 | * @OSF_COPYRIGHT@ |
| | 30 | */ |
| | 31 | /* |
| | 32 | * Mach Operating System |
| | 33 | * Copyright (c) 1991,1990 Carnegie Mellon University |
| | 34 | * All Rights Reserved. |
| | 35 | * |
| | 36 | * Permission to use, copy, modify and distribute this software and its |
| | 37 | * documentation is hereby granted, provided that both the copyright |
| | 38 | * notice and this permission notice appear in all copies of the |
| | 39 | * software, derivative works or modified versions, and any portions |
| | 40 | * thereof, and that both notices appear in supporting documentation. |
| | 41 | * |
| | 42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
| | 43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
| | 44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| | 45 | * |
| | 46 | * Carnegie Mellon requests users of this software to return to |
| | 47 | * |
| | 48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| | 49 | * School of Computer Science |
| | 50 | * Carnegie Mellon University |
| | 51 | * Pittsburgh PA 15213-3890 |
| | 52 | * |
| | 53 | * any improvements or extensions that they make and grant Carnegie Mellon |
| | 54 | * the rights to redistribute these changes. |
| | 55 | */ |
| | 56 | /* |
| | 57 | */ |
| | 58 | |
| | 59 | #ifndef _PPC_DB_MACHDEP_H_ |
| | 60 | #define _PPC_DB_MACHDEP_H_ |
| | 61 | |
| | 62 | /* |
| | 63 | * Machine-dependent defines for new kernel debugger. |
| | 64 | */ |
| | 65 | |
| | 66 | #include <kern/kern_types.h> |
| | 67 | #include <mach/ppc/vm_types.h> |
| | 68 | #include <mach/ppc/vm_param.h> |
| | 69 | #include <kern/thread.h> |
| | 70 | #include <ppc/trap.h> |
| | 71 | #include <ppc/proc_reg.h> |
| | 72 | #include <ppc/savearea.h> |
| | 73 | |
| | 74 | typedef addr64_t db_addr_t; /* address - unsigned */ |
| | 75 | typedef uint64_t db_expr_t; /* expression - signed??? try unsigned */ |
| | 76 | |
| | 77 | typedef struct savearea db_regs_t; |
| | 78 | db_regs_t ddb_regs; /* register state */ |
| | 79 | #define DDB_REGS (&ddb_regs) |
| | 80 | extern int db_active; /* ddb is active */ |
| | 81 | |
| | 82 | #define PC_REGS(regs) ((db_addr_t)(regs)->save_srr0) |
| | 83 | |
| | 84 | #define BKPT_INST 0x7c810808 /* breakpoint instruction */ |
| | 85 | #define BKPT_SIZE (4) /* size of breakpoint inst */ |
| | 86 | #define BKPT_SET(inst) (BKPT_INST) |
| | 87 | |
| | 88 | #define db_clear_single_step(regs) ((regs)->save_srr1 &= ~MASK(MSR_SE)) |
| | 89 | #define db_set_single_step(regs) ((regs)->save_srr1 |= MASK(MSR_SE)) |
| | 90 | |
| | 91 | #define IS_BREAKPOINT_TRAP(type, code) (FALSE) |
| | 92 | #define IS_WATCHPOINT_TRAP(type, code) (FALSE) |
| | 93 | |
| | 94 | #define inst_trap_return(ins) (FALSE) |
| | 95 | #define inst_return(ins) (FALSE) |
| | 96 | #define inst_call(ins) (FALSE) |
| | 97 | |
| | 98 | int db_inst_load(unsigned long); |
| | 99 | int db_inst_store(unsigned long); |
| | 100 | |
| | 101 | /* access capability and access macros */ |
| | 102 | |
| | 103 | #define DB_ACCESS_LEVEL DB_ACCESS_ANY /* any space */ |
| | 104 | #define DB_CHECK_ACCESS(addr,size,task) \ |
| | 105 | db_check_access(addr,size,task) |
| | 106 | #define DB_PHYS_EQ(task1,addr1,task2,addr2) \ |
| | 107 | db_phys_eq(task1,addr1,task2,addr2) |
| | 108 | #define DB_VALID_KERN_ADDR(addr) \ |
| | 109 | ((addr) >= VM_MIN_KERNEL_ADDRESS && \ |
| | 110 | (addr) < vm_last_addr) |
| | 111 | #define DB_VALID_ADDRESS(addr,user) \ |
| | 112 | ((!(user) && DB_VALID_KERN_ADDR(addr)) || \ |
| | 113 | ((user) && (addr) < VM_MAX_ADDRESS)) |
| | 114 | |
| | 115 | /* |
| | 116 | * Given pointer to savearea, determine if it represents |
| | 117 | * a thread executing a) in user space, b) in the kernel, or c) |
| | 118 | * in a kernel-loaded task. Return true for cases a) and c). |
| | 119 | */ |
| | 120 | #define IS_USER_TRAP(regs) \ |
| | 121 | (USER_MODE(regs->save_srr1)) |
| | 122 | |
| | 123 | extern boolean_t db_check_access( |
| | 124 | vm_offset_t addr, |
| | 125 | int size, |
| | 126 | task_t task); |
| | 127 | extern boolean_t db_phys_eq( |
| | 128 | task_t task1, |
| | 129 | vm_offset_t addr1, |
| | 130 | task_t task2, |
| | 131 | vm_offset_t addr2); |
| | 132 | extern db_addr_t db_disasm( |
| | 133 | db_addr_t loc, |
| | 134 | boolean_t altfmt, |
| | 135 | task_t task); |
| | 136 | extern void db_read_bytes( |
| | 137 | vm_offset_t addr, |
| | 138 | int size, |
| | 139 | char *data, |
| | 140 | task_t task); |
| | 141 | extern void db_write_bytes( |
| | 142 | vm_offset_t addr, |
| | 143 | int size, |
| | 144 | char *data, |
| | 145 | task_t task); |
| | 146 | extern void db_stack_trace_cmd( |
| | 147 | db_expr_t addr, |
| | 148 | boolean_t have_addr, |
| | 149 | db_expr_t count, |
| | 150 | char *modif); |
| | 151 | extern void db_reboot( |
| | 152 | db_expr_t addr, |
| | 153 | boolean_t have_addr, |
| | 154 | db_expr_t count, |
| | 155 | char *modif); |
| | 156 | extern void db_low_trace( |
| | 157 | db_expr_t addr, |
| | 158 | int have_addr, |
| | 159 | db_expr_t count, |
| | 160 | char *modif); |
| | 161 | |
| | 162 | |
| | 163 | /* macros for printing OS server dependent task name */ |
| | 164 | |
| | 165 | #define DB_TASK_NAME(task) db_task_name(task) |
| | 166 | #define DB_TASK_NAME_TITLE "COMMAND " |
| | 167 | #define DB_TASK_NAME_LEN 39 |
| | 168 | #define DB_NULL_TASK_NAME "? " |
| | 169 | |
| | 170 | extern void db_task_name( |
| | 171 | task_t task); |
| | 172 | |
| | 173 | /* macro for checking if a thread has used floating-point */ |
| | 174 | |
| | 175 | #define db_act_fp_used(act) (FALSE) |
| | 176 | |
| | 177 | extern void kdb_trap( |
| | 178 | int type, |
| | 179 | struct savearea *regs); |
| | 180 | extern boolean_t db_trap_from_asm( |
| | 181 | struct savearea *regs); |
| | 182 | extern void kdb_on( |
| | 183 | int cpu); |
| | 184 | extern void cnpollc( |
| | 185 | boolean_t on); |
| | 186 | |
| | 187 | extern boolean_t db_phys_cmp( |
| | 188 | vm_offset_t, |
| | 189 | vm_offset_t, |
| | 190 | vm_size_t); |
| | 191 | |
| | 192 | #endif /* _PPC_DB_MACHDEP_H_ */ |
projects / apple / xnu.git / blame_incremental