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   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   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.                                   *
   9  *                                                                         *
  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.                          *
  14  *                                                                         *
  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  ***************************************************************************/
  20
  21 #ifndef TRACE_H
  22 #define TRACE_H
  23
  24 #include <helper/types.h>
  25
  26 struct target;
  27 struct command_context;
  28
  29 struct trace_point {
  30         uint32_t address;
  31         uint64_t hit_counter;
  32 };
  33
  34 struct trace {
  35         uint32_t num_trace_points;
  36         uint32_t trace_points_size;
  37         struct trace_point *trace_points;
  38         uint32_t trace_history_size;
  39         uint32_t *trace_history;
  40         uint32_t trace_history_pos;
  41         int trace_history_overflowed;
  42 };
  43
  44 /**
  45  * \todo This enum is one of the few things in this file related
  46  * to *hardware* tracing ... split such "real" tracing out from
  47  * the contrib/libdcc support.
  48  */
  49 typedef enum trace_status {
  50         TRACE_IDLE = 0x0,
  51         TRACE_RUNNING = 0x1,
  52         TRACE_TRIGGERED = 0x2,
  53         TRACE_COMPLETED = 0x4,
  54         TRACE_OVERFLOWED = 0x8,
  55 } trace_status_t;
  56
  57 int trace_point(struct target *target, uint32_t number);
  58 int trace_register_commands(struct command_context *cmd_ctx);
  59
  60 #define ERROR_TRACE_IMAGE_UNAVAILABLE           (-1500)
  61 #define ERROR_TRACE_INSTRUCTION_UNAVAILABLE     (-1501)
  62
  63 #endif /* TRACE_H */