db_machdep.h revision 4
14Srgrimes/* 24Srgrimes * Mach Operating System 34Srgrimes * Copyright (c) 1991,1990 Carnegie Mellon University 44Srgrimes * All Rights Reserved. 54Srgrimes * 64Srgrimes * Permission to use, copy, modify and distribute this software and its 74Srgrimes * documentation is hereby granted, provided that both the copyright 84Srgrimes * notice and this permission notice appear in all copies of the 94Srgrimes * software, derivative works or modified versions, and any portions 104Srgrimes * thereof, and that both notices appear in supporting documentation. 114Srgrimes * 124Srgrimes * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 134Srgrimes * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 144Srgrimes * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 154Srgrimes * 164Srgrimes * Carnegie Mellon requests users of this software to return to 174Srgrimes * 184Srgrimes * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 194Srgrimes * School of Computer Science 204Srgrimes * Carnegie Mellon University 214Srgrimes * Pittsburgh PA 15213-3890 224Srgrimes * 234Srgrimes * any improvements or extensions that they make and grant Carnegie Mellon 244Srgrimes * the rights to redistribute these changes. 254Srgrimes */ 264Srgrimes/* 274Srgrimes * HISTORY 284Srgrimes * $Log: db_machdep.h,v $ 294Srgrimes * Revision 2.8 92/02/19 15:07:56 elf 304Srgrimes * Added db_thread_fp_used. 314Srgrimes * [92/02/19 rpd] 324Srgrimes * 334Srgrimes * Revision 2.7 91/10/09 16:06:28 af 344Srgrimes * Revision 2.6.3.1 91/10/05 13:10:32 jeffreyh 354Srgrimes * Added access and task name macros. 364Srgrimes * [91/08/29 tak] 374Srgrimes * 384Srgrimes * Revision 2.6.3.1 91/10/05 13:10:32 jeffreyh 394Srgrimes * Added access and task name macros. 404Srgrimes * [91/08/29 tak] 414Srgrimes * 424Srgrimes * Revision 2.6 91/05/14 16:05:58 mrt 434Srgrimes * Correcting copyright 444Srgrimes * 454Srgrimes * Revision 2.5 91/02/05 17:11:17 mrt 464Srgrimes * Changed to new Mach copyright 474Srgrimes * [91/02/01 17:31:24 mrt] 484Srgrimes * 494Srgrimes * Revision 2.4 91/01/08 15:10:16 rpd 504Srgrimes * Added dummy inst_load/inst_store macros. 514Srgrimes * [90/12/11 rpd] 524Srgrimes * 534Srgrimes * Revision 2.3 90/10/25 14:44:49 rwd 544Srgrimes * Added watchpoint support. 554Srgrimes * [90/10/18 rpd] 564Srgrimes * 574Srgrimes * Revision 2.2 90/08/27 21:56:15 dbg 584Srgrimes * Created. 594Srgrimes * [90/07/25 dbg] 604Srgrimes * 614Srgrimes */ 624Srgrimes 634Srgrimes#ifndef _I386_DB_MACHDEP_H_ 644Srgrimes#define _I386_DB_MACHDEP_H_ 654Srgrimes 664Srgrimes/* 674Srgrimes * Machine-dependent defines for new kernel debugger. 684Srgrimes */ 694Srgrimes 704Srgrimes 714Srgrimes/* #include <mach/i386/vm_types.h> */ 724Srgrimes/* #include <mach/i386/vm_param.h> */ 734Srgrimes#include <vm/vm_prot.h> 744Srgrimes#include <vm/vm_param.h> 754Srgrimes#include <vm/vm_inherit.h> 764Srgrimes#include <vm/lock.h> 774Srgrimes/* #include <i386/thread.h> */ /* for thread_status */ 784Srgrimes#include <machine/frame.h> /* for struct trapframe */ 794Srgrimes/* #include <i386/eflags.h> */ 804Srgrimes#include <machine/eflags.h> /* from Mach... */ 814Srgrimes/* #include <i386/trap.h> */ 824Srgrimes#include <machine/trap.h> 834Srgrimes 844Srgrimes#define i386_saved_state trapframe 854Srgrimes/* end of mangling */ 864Srgrimes 874Srgrimestypedef vm_offset_t db_addr_t; /* address - unsigned */ 884Srgrimestypedef int db_expr_t; /* expression - signed */ 894Srgrimes 904Srgrimestypedef struct i386_saved_state db_regs_t; 914Srgrimesdb_regs_t ddb_regs; /* register state */ 924Srgrimes#define DDB_REGS (&ddb_regs) 934Srgrimes 944Srgrimes#define PC_REGS(regs) ((db_addr_t)(regs)->tf_eip) 954Srgrimes 964Srgrimes#define BKPT_INST 0xcc /* breakpoint instruction */ 974Srgrimes#define BKPT_SIZE (1) /* size of breakpoint inst */ 984Srgrimes#define BKPT_SET(inst) (BKPT_INST) 994Srgrimes 1004Srgrimes#define FIXUP_PC_AFTER_BREAK ddb_regs.tf_eip -= 1; 1014Srgrimes 1024Srgrimes#define db_clear_single_step(regs) ((regs)->tf_eflags &= ~EFL_TF) 1034Srgrimes#define db_set_single_step(regs) ((regs)->tf_eflags |= EFL_TF) 1044Srgrimes 1054Srgrimes/* #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_INT3) */ 1064Srgrimes/* #define IS_WATCHPOINT_TRAP(type, code) ((type) == T_WATCHPOINT) */ 1074Srgrimes/* using the 386bsd values, rather than the Mach ones: */ 1084Srgrimes#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BPTFLT) 1094Srgrimes#define IS_WATCHPOINT_TRAP(type, code) ((type) == T_KDBTRAP) 1104Srgrimes 1114Srgrimes#define I_CALL 0xe8 1124Srgrimes#define I_CALLI 0xff 1134Srgrimes#define I_RET 0xc3 1144Srgrimes#define I_IRET 0xcf 1154Srgrimes 1164Srgrimes#define inst_trap_return(ins) (((ins)&0xff) == I_IRET) 1174Srgrimes#define inst_return(ins) (((ins)&0xff) == I_RET) 1184Srgrimes#define inst_call(ins) (((ins)&0xff) == I_CALL || \ 1194Srgrimes (((ins)&0xff) == I_CALLI && \ 1204Srgrimes ((ins)&0x3800) == 0x1000)) 1214Srgrimes#define inst_load(ins) 0 1224Srgrimes#define inst_store(ins) 0 1234Srgrimes 1244Srgrimes/* access capability and access macros */ 1254Srgrimes 1264Srgrimes#define DB_ACCESS_LEVEL 2 /* access any space */ 1274Srgrimes#define DB_CHECK_ACCESS(addr,size,task) \ 1284Srgrimes db_check_access(addr,size,task) 1294Srgrimes#define DB_PHYS_EQ(task1,addr1,task2,addr2) \ 1304Srgrimes db_phys_eq(task1,addr1,task2,addr2) 1314Srgrimes#define DB_VALID_KERN_ADDR(addr) \ 1324Srgrimes ((addr) >= VM_MIN_KERNEL_ADDRESS && \ 1334Srgrimes (addr) < VM_MAX_KERNEL_ADDRESS) 1344Srgrimes#define DB_VALID_ADDRESS(addr,user) \ 1354Srgrimes ((!(user) && DB_VALID_KERN_ADDR(addr)) || \ 1364Srgrimes ((user) && (addr) < VM_MIN_KERNEL_ADDRESS)) 1374Srgrimes 1384Srgrimesboolean_t db_check_access(/* vm_offset_t, int, task_t */); 1394Srgrimesboolean_t db_phys_eq(/* task_t, vm_offset_t, task_t, vm_offset_t */); 1404Srgrimes 1414Srgrimes/* macros for printing OS server dependent task name */ 1424Srgrimes 1434Srgrimes#define DB_TASK_NAME(task) db_task_name(task) 1444Srgrimes#define DB_TASK_NAME_TITLE "COMMAND " 1454Srgrimes#define DB_TASK_NAME_LEN 23 1464Srgrimes#define DB_NULL_TASK_NAME "? " 1474Srgrimes 1484Srgrimesvoid db_task_name(/* task_t */); 1494Srgrimes 1504Srgrimes/* macro for checking if a thread has used floating-point */ 1514Srgrimes 1524Srgrimes#define db_thread_fp_used(thread) ((thread)->pcb->ims.ifps != 0) 1534Srgrimes 1544Srgrimes#endif /* _I386_DB_MACHDEP_H_ */ 155