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   1 /***************************************************************************
   2  *   Copyright (C) 2005 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, see <http://www.gnu.org/licenses/>. *
  17  ***************************************************************************/
  18
  19 #ifndef OPENOCD_TARGET_BREAKPOINTS_H
  20 #define OPENOCD_TARGET_BREAKPOINTS_H
  21
  22 #include <stdint.h>
  23
  24 #include "helper/types.h"
  25
  26 struct target;
  27
  28 enum breakpoint_type {
  29         BKPT_HARD,
  30         BKPT_SOFT,
  31 };
  32
  33 enum watchpoint_rw {
  34         WPT_READ = 0, WPT_WRITE = 1, WPT_ACCESS = 2
  35 };
  36
  37 struct breakpoint {
  38         target_addr_t address;
  39         uint32_t asid;
  40         int length;
  41         enum breakpoint_type type;
  42         bool is_set;
  43         unsigned int number;
  44         uint8_t *orig_instr;
  45         struct breakpoint *next;
  46         uint32_t unique_id;
  47         int linked_brp;
  48 };
  49
  50 struct watchpoint {
  51         target_addr_t address;
  52         uint32_t length;
  53         uint32_t mask;
  54         uint32_t value;
  55         enum watchpoint_rw rw;
  56         bool is_set;
  57         unsigned int number;
  58         struct watchpoint *next;
  59         int unique_id;
  60 };
  61
  62 void breakpoint_clear_target(struct target *target);
  63 int breakpoint_add(struct target *target,
  64                 target_addr_t address, uint32_t length, enum breakpoint_type type);
  65 int context_breakpoint_add(struct target *target,
  66                 uint32_t asid, uint32_t length, enum breakpoint_type type);
  67 int hybrid_breakpoint_add(struct target *target,
  68                 target_addr_t address, uint32_t asid, uint32_t length, enum breakpoint_type type);
  69 void breakpoint_remove(struct target *target, target_addr_t address);
  70 void breakpoint_remove_all(struct target *target);
  71
  72 struct breakpoint *breakpoint_find(struct target *target, target_addr_t address);
  73
  74 static inline void breakpoint_hw_set(struct breakpoint *breakpoint, unsigned int hw_number)
  75 {
  76         breakpoint->is_set = true;
  77         breakpoint->number = hw_number;
  78 }
  79
  80 void watchpoint_clear_target(struct target *target);
  81 int watchpoint_add(struct target *target,
  82                 target_addr_t address, uint32_t length,
  83                 enum watchpoint_rw rw, uint32_t value, uint32_t mask);
  84 void watchpoint_remove(struct target *target, target_addr_t address);
  85
  86 /* report type and address of just hit watchpoint */
  87 int watchpoint_hit(struct target *target, enum watchpoint_rw *rw,
  88                 target_addr_t *address);
  89
  90 static inline void watchpoint_set(struct watchpoint *watchpoint, unsigned int number)
  91 {
  92         watchpoint->is_set = true;
  93         watchpoint->number = number;
  94 }
  95
  96 #endif /* OPENOCD_TARGET_BREAKPOINTS_H */