1 /***************************************************************************
2 * Copyright (C) 2005, 2007 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
17 ***************************************************************************/
23 #include <helper/log.h>
27 int trace_point(struct target
*target
, uint32_t number
)
29 struct trace
*trace
= target
->trace_info
;
31 LOG_DEBUG("tracepoint: %i", (int)number
);
33 if (number
< trace
->num_trace_points
)
34 trace
->trace_points
[number
].hit_counter
++;
36 if (trace
->trace_history_size
) {
37 trace
->trace_history
[trace
->trace_history_pos
++] = number
;
38 if (trace
->trace_history_pos
== trace
->trace_history_size
) {
39 trace
->trace_history_pos
= 0;
40 trace
->trace_history_overflowed
= 1;
47 COMMAND_HANDLER(handle_trace_point_command
)
49 struct target
*target
= get_current_target(CMD_CTX
);
50 struct trace
*trace
= target
->trace_info
;
55 for (i
= 0; i
< trace
->num_trace_points
; i
++) {
56 command_print(CMD
, "trace point 0x%8.8" PRIx32
" (%lld times hit)",
57 trace
->trace_points
[i
].address
,
58 (long long)trace
->trace_points
[i
].hit_counter
);
64 if (!strcmp(CMD_ARGV
[0], "clear")) {
65 free(trace
->trace_points
);
66 trace
->trace_points
= NULL
;
68 trace
->num_trace_points
= 0;
69 trace
->trace_points_size
= 0;
74 /* resize array if necessary */
75 if (!trace
->trace_points
|| (trace
->trace_points_size
== trace
->num_trace_points
)) {
76 trace
->trace_points
= realloc(trace
->trace_points
,
77 sizeof(struct trace_point
) * (trace
->trace_points_size
+ 32));
78 trace
->trace_points_size
+= 32;
82 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[0], address
);
83 trace
->trace_points
[trace
->num_trace_points
].address
= address
;
84 trace
->trace_points
[trace
->num_trace_points
].hit_counter
= 0;
85 trace
->num_trace_points
++;
90 COMMAND_HANDLER(handle_trace_history_command
)
92 struct target
*target
= get_current_target(CMD_CTX
);
93 struct trace
*trace
= target
->trace_info
;
96 trace
->trace_history_pos
= 0;
97 trace
->trace_history_overflowed
= 0;
99 if (!strcmp(CMD_ARGV
[0], "clear")) {
100 /* clearing is implicit, we've just reset position anyway */
104 free(trace
->trace_history
);
106 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[0], trace
->trace_history_size
);
107 trace
->trace_history
= malloc(sizeof(uint32_t) * trace
->trace_history_size
);
109 command_print(CMD
, "new trace history size: %i", (int)(trace
->trace_history_size
));
113 uint32_t last
= trace
->trace_history_pos
;
115 if (!trace
->trace_history_size
) {
116 command_print(CMD
, "trace history buffer is not allocated");
120 if (trace
->trace_history_overflowed
) {
121 first
= trace
->trace_history_pos
;
122 last
= trace
->trace_history_pos
- 1;
125 for (i
= first
; (i
% trace
->trace_history_size
) != last
; i
++) {
126 if (trace
->trace_history
[i
% trace
->trace_history_size
] < trace
->num_trace_points
) {
128 address
= trace
->trace_points
[trace
->trace_history
[i
% trace
->trace_history_size
]].address
;
129 command_print(CMD
, "trace point %i: 0x%8.8" PRIx32
"",
130 (int)(trace
->trace_history
[i
% trace
->trace_history_size
]),
133 command_print(CMD
, "trace point %i: -not defined-",
134 (int)(trace
->trace_history
[i
% trace
->trace_history_size
]));
141 static const struct command_registration trace_exec_command_handlers
[] = {
144 .handler
= handle_trace_history_command
,
145 .mode
= COMMAND_EXEC
,
146 .help
= "display trace history, clear history or set size",
147 .usage
= "['clear'|size]",
151 .handler
= handle_trace_point_command
,
152 .mode
= COMMAND_EXEC
,
153 .help
= "display trace points, clear list of trace points, "
154 "or add new tracepoint at address",
155 .usage
= "['clear'|address]",
157 COMMAND_REGISTRATION_DONE
159 static const struct command_registration trace_command_handlers
[] = {
162 .mode
= COMMAND_EXEC
,
163 .help
= "trace command group",
165 .chain
= trace_exec_command_handlers
,
167 COMMAND_REGISTRATION_DONE
170 int trace_register_commands(struct command_context
*cmd_ctx
)
172 return register_commands(cmd_ctx
, NULL
, trace_command_handlers
);
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