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
|
/* $NetBSD: db_machdep.h,v 1.22 2014/09/13 18:08:38 matt Exp $ */
/*
* Copyright (c) 1996 Scott K Stevens
*
* 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 _ARM_DB_MACHDEP_H_
#define _ARM_DB_MACHDEP_H_
/*
* Machine-dependent defines for new kernel debugger.
*/
#include <sys/types.h>
#include <uvm/uvm_extern.h>
#include <arm/armreg.h>
#include <machine/frame.h>
#include <machine/trap.h>
/* end of mangling */
typedef vaddr_t db_addr_t; /* address - unsigned */
#define DDB_EXPR_FMT "l" /* expression is long */
typedef long db_expr_t; /* expression - signed */
typedef trapframe_t db_regs_t;
#ifndef MULTIPROCESSOR
extern db_regs_t ddb_regs; /* register state */
#define DDB_REGS (&ddb_regs)
#else
extern db_regs_t *ddb_regp;
#define DDB_REGS (ddb_regp)
#define ddb_regs (*ddb_regp)
#endif
#ifdef __PROG26
#define PC_REGS(regs) ((regs)->tf_r15 & R15_PC)
#define PC_ADVANCE(regs) ((regs)->tf_r15 += BKPT_SIZE)
#else
#define PC_REGS(regs) ((regs)->tf_pc)
#define PC_ADVANCE(r) ((r)->tf_r15 += BKPT_SIZE)
#endif
#define BKPT_ADDR(addr) (addr) /* breakpoint address */
#if defined(DDB)
#define BKPT_INST (KERNEL_BREAKPOINT) /* breakpoint instruction */
#else
/* breakpoint instruction if we use KGDB, this is used in db_set_temp_breakpoint() */
#define BKPT_INST (GDB5_BREAKPOINT)
#endif
#define BKPT_SIZE (INSN_SIZE) /* size of breakpoint inst */
#define BKPT_SET(inst, addr) (BKPT_INST)
/*#define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_pc -= BKPT_SIZE)*/
#define T_FAULT (0)
#define T_BREAKPOINT (1)
#define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT)
#define IS_WATCHPOINT_TRAP(type, code) (0)
#define inst_trap_return(ins) (0)
/* ldmxx reg, {..., pc}
01800000 stack mode
000f0000 register
0000ffff register list */
/* mov pc, reg
0000000f register */
#define inst_return(ins) (((ins) & 0x0e108000) == 0x08108000 || \
((ins) & 0x0ff0fff0) == 0x01a0f000)
/* bl ...
00ffffff offset>>2 */
#define inst_call(ins) (((ins) & 0x0f000000) == 0x0b000000)
/* b ...
00ffffff offset>>2 */
/* ldr pc, [pc, reg, lsl #2]
0000000f register */
#define inst_branch(ins) (((ins) & 0x0f000000) == 0x0a000000 || \
((ins) & 0x0fdffff0) == 0x079ff100 || \
((ins) & 0x0ff0f000) == 0x0590f000)
#define inst_load(ins) (0)
#define inst_store(ins) (0)
#define inst_unconditional_flow_transfer(ins) \
(__SHIFTOUT((ins), INSN_COND_MASK) == INSN_COND_AL \
&& (inst_branch(ins) || inst_call(ins) || inst_return(ins)))
#define getreg_val (0)
#define next_instr_address(pc, bd) ((bd) ? (pc) : ((pc) + INSN_SIZE))
#define DB_MACHINE_COMMANDS
#define SOFTWARE_SSTEP
u_int branch_taken(u_int insn, u_int pc, db_regs_t *db_regs);
int kdb_trap(int, db_regs_t *);
void db_machine_init(void);
int db_validate_address(vaddr_t addr);
#define DB_ELF_SYMBOLS
#define DB_ELFSIZE 32
/*
* kgdb
*/
typedef register_t kgdb_reg_t;
#define KGDB_NUMREGS (16 + 8*3 + 2) /* r0..r15, f0..f7, fps, cpsr
* fp-registers are 12 bytes wide */
#define KGDB_REGNUM_R0 0
#define KGDB_REGNUM_SPSR 16 + 8*3 + 1
#define KGDB_BUFLEN 1024
/*
* MP stuff
*/
extern volatile struct cpu_info *db_onproc;
extern volatile struct cpu_info *db_newcpu;
#endif /* _ARM_DB_MACHDEP_H_ */
|
