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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 "log.h"
#include "trace.h"
#include "target.h"
int trace_point(target_t *target, u32 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;
}
static 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)
{
u32 i;
for (i = 0; i < trace->num_trace_points; i++)
{
command_print(cmd_ctx, "trace point 0x%8.8x (%lld 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;
}
static 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
{
u32 i;
u32 first = 0;
u32 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)
{
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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