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Diffstat (limited to 'sys/amd64/include/db_machdep.h')
| -rw-r--r-- | sys/amd64/include/db_machdep.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/sys/amd64/include/db_machdep.h b/sys/amd64/include/db_machdep.h new file mode 100644 index 0000000..8e37eec --- /dev/null +++ b/sys/amd64/include/db_machdep.h @@ -0,0 +1,154 @@ +/* + * 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 <mach/i386/vm_types.h> */ +/* #include <mach/i386/vm_param.h> */ +#include <vm/vm_prot.h> +#include <vm/vm_param.h> +#include <vm/vm_inherit.h> +#include <vm/lock.h> +/* #include <i386/thread.h> */ /* for thread_status */ +#include <machine/frame.h> /* for struct trapframe */ +/* #include <i386/eflags.h> */ +#include <machine/eflags.h> /* from Mach... */ +/* #include <i386/trap.h> */ +#include <machine/trap.h> + +#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_ */ |
