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- /***************************************************************************
- * 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., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include "replacements.h"
- #include "log.h"
- #include "trace.h"
- #include "target.h"
- #include "command.h"
-
- #include <stdlib.h>
- #include <string.h>
- #include <inttypes.h>
-
- int trace_point(target_t *target, int number)
- {
- trace_t *trace = target->trace_info;
-
- LOG_DEBUG("tracepoint: %i", 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;
- }
-
- int handle_trace_point_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
- {
- target_t *target = get_current_target(cmd_ctx);
- trace_t *trace = target->trace_info;
-
- if (argc == 0)
- {
- int i;
-
- for (i = 0; i < trace->num_trace_points; i++)
- {
- command_print(cmd_ctx, "trace point 0x%8.8x (%"PRIi64" times hit)",
- trace->trace_points[i].address,
- trace->trace_points[i].hit_counter);
- }
-
- return ERROR_OK;
- }
-
- if (!strcmp(args[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(trace_point_t) * (trace->trace_points_size + 32));
- trace->trace_points_size += 32;
- }
-
- trace->trace_points[trace->num_trace_points].address = strtoul(args[0], NULL, 0);
- trace->trace_points[trace->num_trace_points].hit_counter = 0;
- trace->num_trace_points++;
-
- return ERROR_OK;
- }
-
- int handle_trace_history_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
- {
- target_t *target = get_current_target(cmd_ctx);
- trace_t *trace = target->trace_info;
-
- if (argc > 0)
- {
- trace->trace_history_pos = 0;
- trace->trace_history_overflowed = 0;
-
- if (!strcmp(args[0], "clear"))
- {
- /* clearing is implicit, we've just reset position anyway */
- return ERROR_OK;
- }
-
- if (trace->trace_history)
- free(trace->trace_history);
-
- trace->trace_history_size = strtoul(args[0], NULL, 0);
- trace->trace_history = malloc(sizeof(u32) * trace->trace_history_size);
-
- command_print(cmd_ctx, "new trace history size: %i", trace->trace_history_size);
- }
- else
- {
- int i;
- int first = 0;
- int last = trace->trace_history_pos;
-
- 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)
- {
- u32 address;
- address = trace->trace_points[trace->trace_history[i % trace->trace_history_size]].address;
- command_print(cmd_ctx, "trace point %i: 0x%8.8x",
- trace->trace_history[i % trace->trace_history_size],
- address);
- }
-
- else
- {
- command_print(cmd_ctx, "trace point %i: -not defined-", trace->trace_history[i % trace->trace_history_size]);
- }
- }
- }
-
- return ERROR_OK;
- }
-
- int trace_register_commands(struct command_context_s *cmd_ctx)
- {
- command_t *trace_cmd =
- register_command(cmd_ctx, NULL, "trace", NULL, COMMAND_ANY, "trace commands");
-
- register_command(cmd_ctx, trace_cmd, "history", handle_trace_history_command,
- COMMAND_EXEC, "display trace history, ['clear'] history or set [size]");
-
- register_command(cmd_ctx, trace_cmd, "point", handle_trace_point_command,
- COMMAND_EXEC, "display trace points, ['clear'] list of trace points, or add new tracepoint at [address]");
-
- return ERROR_OK;
- }
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