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, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
28 int trace_point(struct target *target, uint32_t number)
30 struct trace *trace = target->trace_info;
32 LOG_DEBUG("tracepoint: %i", (int)number);
34 if (number < trace->num_trace_points)
35 trace->trace_points[number].hit_counter++;
37 if (trace->trace_history_size)
39 trace->trace_history[trace->trace_history_pos++] = number;
40 if (trace->trace_history_pos == trace->trace_history_size)
42 trace->trace_history_pos = 0;
43 trace->trace_history_overflowed = 1;
50 COMMAND_HANDLER(handle_trace_point_command)
52 struct target *target = get_current_target(CMD_CTX);
53 struct trace *trace = target->trace_info;
59 for (i = 0; i < trace->num_trace_points; i++)
61 command_print(CMD_CTX, "trace point 0x%8.8" PRIx32 " (%lld times hit)",
62 trace->trace_points[i].address,
63 (long long)trace->trace_points[i].hit_counter);
69 if (!strcmp(CMD_ARGV[0], "clear"))
71 if (trace->trace_points)
73 free(trace->trace_points);
74 trace->trace_points = NULL;
76 trace->num_trace_points = 0;
77 trace->trace_points_size = 0;
82 /* resize array if necessary */
83 if (!trace->trace_points || (trace->trace_points_size == trace->num_trace_points))
85 trace->trace_points = realloc(trace->trace_points, sizeof(struct trace_point) * (trace->trace_points_size + 32));
86 trace->trace_points_size += 32;
90 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
91 trace->trace_points[trace->num_trace_points].address = address;
92 trace->trace_points[trace->num_trace_points].hit_counter = 0;
93 trace->num_trace_points++;
98 COMMAND_HANDLER(handle_trace_history_command)
100 struct target *target = get_current_target(CMD_CTX);
101 struct trace *trace = target->trace_info;
105 trace->trace_history_pos = 0;
106 trace->trace_history_overflowed = 0;
108 if (!strcmp(CMD_ARGV[0], "clear"))
110 /* clearing is implicit, we've just reset position anyway */
114 if (trace->trace_history)
115 free(trace->trace_history);
117 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], trace->trace_history_size);
118 trace->trace_history = malloc(sizeof(uint32_t) * trace->trace_history_size);
120 command_print(CMD_CTX, "new trace history size: %i", (int)(trace->trace_history_size));
126 uint32_t last = trace->trace_history_pos;
128 if (!trace->trace_history_size) {
129 command_print(CMD_CTX, "trace history buffer is not allocated");
132 if (trace->trace_history_overflowed)
134 first = trace->trace_history_pos;
135 last = trace->trace_history_pos - 1;
138 for (i = first; (i % trace->trace_history_size) != last; i++)
140 if (trace->trace_history[i % trace->trace_history_size] < trace->num_trace_points)
143 address = trace->trace_points[trace->trace_history[i % trace->trace_history_size]].address;
144 command_print(CMD_CTX, "trace point %i: 0x%8.8" PRIx32 "",
145 (int)(trace->trace_history[i % trace->trace_history_size]),
151 command_print(CMD_CTX, "trace point %i: -not defined-", (int)(trace->trace_history[i % trace->trace_history_size]));
159 int trace_register_commands(struct command_context *cmd_ctx)
161 struct command *trace_cmd =
162 COMMAND_REGISTER(cmd_ctx, NULL, "trace", NULL, COMMAND_ANY, "trace commands");
164 COMMAND_REGISTER(cmd_ctx, trace_cmd, "history", handle_trace_history_command,
165 COMMAND_EXEC, "display trace history, ['clear'] history or set [size]");
167 COMMAND_REGISTER(cmd_ctx, trace_cmd, "point", handle_trace_point_command,
168 COMMAND_EXEC, "display trace points, ['clear'] list of trace points, or add new tracepoint at [address]");