1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/* $OpenBSD: db_machdep.h,v 1.9 2005/01/04 21:14:35 espie Exp $ */
/* $NetBSD: db_machdep.h,v 1.12 2001/07/07 15:16:13 eeh Exp $ */
/*
* 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.
*/
#ifndef _SPARC_DB_MACHDEP_H_
#define _SPARC_DB_MACHDEP_H_
/*
* Machine-dependent defines for new kernel debugger.
*/
#include <uvm/uvm_extern.h>
#include <machine/frame.h>
#include <machine/psl.h>
#include <machine/trap.h>
#include <machine/reg.h>
/* end of mangling */
typedef vaddr_t db_addr_t; /* address - unsigned */
typedef long db_expr_t; /* expression - signed */
struct trapstate {
int64_t tstate;
int64_t tpc;
int64_t tnpc;
int64_t tt;
};
#if 1
typedef struct {
struct trapframe64 ddb_tf;
struct frame64 ddb_fr;
struct trapstate ddb_ts[5];
int ddb_tl;
struct fpstate64 ddb_fpstate;
} db_regs_t;
#else
typedef struct db_regs {
struct trapregs dbr_traps[4];
int dbr_y;
char dbr_tl;
char dbr_canrestore;
char dbr_cansave;
char dbr_cleanwin;
char dbr_cwp;
char dbr_wstate;
int64_t dbr_g[8];
int64_t dbr_ag[8];
int64_t dbr_ig[8];
int64_t dbr_mg[8];
int64_t dbr_out[8];
int64_t dbr_local[8];
int64_t dbr_in[8];
} db_regs_t;
#endif
extern db_regs_t ddb_regs; /* register state */
#define DDB_REGS (&ddb_regs)
#define DDB_TF (&ddb_regs.ddb_tf)
#define DDB_FR (&ddb_regs.ddb_fr)
#define DDB_FP (&ddb_regs.ddb_fpstate)
#define PC_REGS(regs) ((db_addr_t)(regs)->ddb_tf.tf_pc)
#define SET_PC_REGS(regs, value) (regs)->ddb_tf.tf_pc = (int32_t)(value)
#define PC_ADVANCE(regs) do { \
vaddr_t n = (regs)->ddb_tf.tf_npc; \
(regs)->ddb_tf.tf_pc = n; \
(regs)->ddb_tf.tf_npc = n + 4; \
} while(0)
#define BKPT_INST 0x91d02001 /* breakpoint instruction */
#define BKPT_SIZE (4) /* size of breakpoint inst */
#define BKPT_SET(inst) (BKPT_INST)
#define IS_BREAKPOINT_TRAP(type, code) \
((type) == T_BREAKPOINT || (type) == T_KGDB_EXEC)
#define IS_WATCHPOINT_TRAP(type, code) \
((type) ==T_PA_WATCHPT || (type) == T_VA_WATCHPT)
/*
* Sparc cpus have no hardware single-step.
*/
#define SOFTWARE_SSTEP
boolean_t db_inst_trap_return(int inst);
boolean_t db_inst_return(int inst);
boolean_t db_inst_call(int inst);
boolean_t db_inst_branch(int inst);
int db_inst_load(int inst);
int db_inst_store(int inst);
boolean_t db_inst_unconditional_flow_transfer(int inst);
db_addr_t db_branch_taken(int inst, db_addr_t pc, db_regs_t *regs);
void db_machine_init(void);
#define inst_trap_return(ins) db_inst_trap_return(ins)
#define inst_return(ins) db_inst_return(ins)
#define inst_call(ins) db_inst_call(ins)
#define inst_branch(ins) db_inst_branch(ins)
#define inst_load(ins) db_inst_load(ins)
#define inst_store(ins) db_inst_store(ins)
#define inst_unconditional_flow_transfer(ins) \
db_inst_unconditional_flow_transfer(ins)
#define branch_taken(ins, pc, fun, regs) \
db_branch_taken((ins), (pc), (regs))
/* see note in db_interface.c about reversed breakpoint addrs */
#define next_instr_address(pc, bd) \
((bd) ? (pc) : ddb_regs.ddb_tf.tf_npc)
#define DB_MACHINE_COMMANDS
void db_machine_init(void);
int kdb_trap(int, struct trapframe64 *);
/*
* We will use elf symbols in DDB when they work.
*/
#define DB_ELF_SYMBOLS
#define DB_ELFSIZE 64
/*
* KGDB definitions
*/
typedef u_long kgdb_reg_t;
#define KGDB_NUMREGS 72
#define KGDB_BUFLEN 1024
#endif /* _SPARC_DB_MACHDEP_H_ */
|
