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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/***************************************************************************
* Copyright (C) 2005, 2007 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <helper/log.h>
#include "trace.h"
#include "target.h"
int trace_point(struct target *target, uint32_t number)
{
struct trace *trace = target->trace_info;
LOG_DEBUG("tracepoint: %i", (int)number);
if (number < trace->num_trace_points)
trace->trace_points[number].hit_counter++;
if (trace->trace_history_size) {
trace->trace_history[trace->trace_history_pos++] = number;
if (trace->trace_history_pos == trace->trace_history_size) {
trace->trace_history_pos = 0;
trace->trace_history_overflowed = 1;
}
}
return ERROR_OK;
}
COMMAND_HANDLER(handle_trace_point_command)
{
struct target *target = get_current_target(CMD_CTX);
struct trace *trace = target->trace_info;
if (CMD_ARGC == 0) {
uint32_t i;
for (i = 0; i < trace->num_trace_points; i++) {
command_print(CMD_CTX, "trace point 0x%8.8" PRIx32 " (%lld times hit)",
trace->trace_points[i].address,
(long long)trace->trace_points[i].hit_counter);
}
return ERROR_OK;
}
if (!strcmp(CMD_ARGV[0], "clear")) {
if (trace->trace_points) {
free(trace->trace_points);
trace->trace_points = NULL;
}
trace->num_trace_points = 0;
trace->trace_points_size = 0;
return ERROR_OK;
}
/* resize array if necessary */
if (!trace->trace_points || (trace->trace_points_size == trace->num_trace_points)) {
trace->trace_points = realloc(trace->trace_points,
sizeof(struct trace_point) * (trace->trace_points_size + 32));
trace->trace_points_size += 32;
}
uint32_t address;
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
trace->trace_points[trace->num_trace_points].address = address;
trace->trace_points[trace->num_trace_points].hit_counter = 0;
trace->num_trace_points++;
return ERROR_OK;
}
COMMAND_HANDLER(handle_trace_history_command)
{
struct target *target = get_current_target(CMD_CTX);
struct trace *trace = target->trace_info;
if (CMD_ARGC > 0) {
trace->trace_history_pos = 0;
trace->trace_history_overflowed = 0;
if (!strcmp(CMD_ARGV[0], "clear")) {
/* clearing is implicit, we've just reset position anyway */
return ERROR_OK;
}
if (trace->trace_history)
free(trace->trace_history);
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], trace->trace_history_size);
trace->trace_history = malloc(sizeof(uint32_t) * trace->trace_history_size);
command_print(CMD_CTX, "new trace history size: %i", (int)(trace->trace_history_size));
} else {
uint32_t i;
uint32_t first = 0;
uint32_t last = trace->trace_history_pos;
if (!trace->trace_history_size) {
command_print(CMD_CTX, "trace history buffer is not allocated");
return ERROR_OK;
}
if (trace->trace_history_overflowed) {
first = trace->trace_history_pos;
last = trace->trace_history_pos - 1;
}
for (i = first; (i % trace->trace_history_size) != last; i++) {
if (trace->trace_history[i % trace->trace_history_size] < trace->num_trace_points) {
uint32_t address;
address = trace->trace_points[trace->trace_history[i % trace->trace_history_size]].address;
command_print(CMD_CTX, "trace point %i: 0x%8.8" PRIx32 "",
(int)(trace->trace_history[i % trace->trace_history_size]),
address);
} else
command_print(CMD_CTX, "trace point %i: -not defined-",
(int)(trace->trace_history[i % trace->trace_history_size]));
}
}
return ERROR_OK;
}
static const struct command_registration trace_exec_command_handlers[] = {
{
.name = "history",
.handler = handle_trace_history_command,
.mode = COMMAND_EXEC,
.help = "display trace history, clear history or set size",
.usage = "['clear'|size]",
},
{
.name = "point",
.handler = handle_trace_point_command,
.mode = COMMAND_EXEC,
.help = "display trace points, clear list of trace points, "
"or add new tracepoint at address",
.usage = "['clear'|address]",
},
COMMAND_REGISTRATION_DONE
};
static const struct command_registration trace_command_handlers[] = {
{
.name = "trace",
.mode = COMMAND_EXEC,
.help = "trace command group",
.usage = "",
.chain = trace_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE
};
int trace_register_commands(struct command_context *cmd_ctx)
{
return register_commands(cmd_ctx, NULL, trace_command_handlers);
}
|
