/* * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* * HISTORY * $Log: db_machdep.h,v $ * Revision 2.8 92/02/19 15:07:56 elf * Added db_thread_fp_used. * [92/02/19 rpd] * * Revision 2.7 91/10/09 16:06:28 af * Revision 2.6.3.1 91/10/05 13:10:32 jeffreyh * Added access and task name macros. * [91/08/29 tak] * * Revision 2.6.3.1 91/10/05 13:10:32 jeffreyh * Added access and task name macros. * [91/08/29 tak] * * Revision 2.6 91/05/14 16:05:58 mrt * Correcting copyright * * Revision 2.5 91/02/05 17:11:17 mrt * Changed to new Mach copyright * [91/02/01 17:31:24 mrt] * * Revision 2.4 91/01/08 15:10:16 rpd * Added dummy inst_load/inst_store macros. * [90/12/11 rpd] * * Revision 2.3 90/10/25 14:44:49 rwd * Added watchpoint support. * [90/10/18 rpd] * * Revision 2.2 90/08/27 21:56:15 dbg * Created. * [90/07/25 dbg] * */ #ifndef _I386_DB_MACHDEP_H_ #define _I386_DB_MACHDEP_H_ /* * Machine-dependent defines for new kernel debugger. */ /* #include */ /* #include */ #include #include #include #include /* #include */ /* for thread_status */ #include /* for struct trapframe */ /* #include */ #include /* from Mach... */ /* #include */ #include #define i386_saved_state trapframe /* end of mangling */ typedef vm_offset_t db_addr_t; /* address - unsigned */ typedef int db_expr_t; /* expression - signed */ typedef struct i386_saved_state db_regs_t; db_regs_t ddb_regs; /* register state */ #define DDB_REGS (&ddb_regs) #define PC_REGS(regs) ((db_addr_t)(regs)->tf_eip) #define BKPT_INST 0xcc /* breakpoint instruction */ #define BKPT_SIZE (1) /* size of breakpoint inst */ #define BKPT_SET(inst) (BKPT_INST) #define FIXUP_PC_AFTER_BREAK ddb_regs.tf_eip -= 1; #define db_clear_single_step(regs) ((regs)->tf_eflags &= ~EFL_TF) #define db_set_single_step(regs) ((regs)->tf_eflags |= EFL_TF) /* #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_INT3) */ /* #define IS_WATCHPOINT_TRAP(type, code) ((type) == T_WATCHPOINT) */ /* using the 386bsd values, rather than the Mach ones: */ #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BPTFLT) #define IS_WATCHPOINT_TRAP(type, code) ((type) == T_KDBTRAP) #define I_CALL 0xe8 #define I_CALLI 0xff #define I_RET 0xc3 #define I_IRET 0xcf #define inst_trap_return(ins) (((ins)&0xff) == I_IRET) #define inst_return(ins) (((ins)&0xff) == I_RET) #define inst_call(ins) (((ins)&0xff) == I_CALL || \ (((ins)&0xff) == I_CALLI && \ ((ins)&0x3800) == 0x1000)) #define inst_load(ins) 0 #define inst_store(ins) 0 /* access capability and access macros */ #define DB_ACCESS_LEVEL 2 /* access any space */ #define DB_CHECK_ACCESS(addr,size,task) \ db_check_access(addr,size,task) #define DB_PHYS_EQ(task1,addr1,task2,addr2) \ db_phys_eq(task1,addr1,task2,addr2) #define DB_VALID_KERN_ADDR(addr) \ ((addr) >= VM_MIN_KERNEL_ADDRESS && \ (addr) < VM_MAX_KERNEL_ADDRESS) #define DB_VALID_ADDRESS(addr,user) \ ((!(user) && DB_VALID_KERN_ADDR(addr)) || \ ((user) && (addr) < VM_MIN_KERNEL_ADDRESS)) boolean_t db_check_access(/* vm_offset_t, int, task_t */); boolean_t db_phys_eq(/* task_t, vm_offset_t, task_t, vm_offset_t */); /* macros for printing OS server dependent task name */ #define DB_TASK_NAME(task) db_task_name(task) #define DB_TASK_NAME_TITLE "COMMAND " #define DB_TASK_NAME_LEN 23 #define DB_NULL_TASK_NAME "? " void db_task_name(/* task_t */); /* macro for checking if a thread has used floating-point */ #define db_thread_fp_used(thread) ((thread)->pcb->ims.ifps != 0) #endif /* _I386_DB_MACHDEP_H_ */