1 /***************************************************************************
2 * Copyright (C) 2005 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 ***************************************************************************/
26 #include "breakpoints.h"
29 static char *breakpoint_type_strings
[] =
35 static char *watchpoint_rw_strings
[] =
42 int breakpoint_add(target_t
*target
, uint32_t address
, uint32_t length
, enum breakpoint_type type
)
44 breakpoint_t
*breakpoint
= target
->breakpoints
;
45 breakpoint_t
**breakpoint_p
= &target
->breakpoints
;
50 if (breakpoint
->address
== address
)
52 breakpoint_p
= &breakpoint
->next
;
53 breakpoint
= breakpoint
->next
;
56 (*breakpoint_p
) = malloc(sizeof(breakpoint_t
));
57 (*breakpoint_p
)->address
= address
;
58 (*breakpoint_p
)->length
= length
;
59 (*breakpoint_p
)->type
= type
;
60 (*breakpoint_p
)->set
= 0;
61 (*breakpoint_p
)->orig_instr
= malloc(length
);
62 (*breakpoint_p
)->next
= NULL
;
64 if ((retval
= target_add_breakpoint(target
, *breakpoint_p
)) != ERROR_OK
)
68 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE
:
69 LOG_INFO("can't add %s breakpoint, resource not available", breakpoint_type_strings
[(*breakpoint_p
)->type
]);
70 free((*breakpoint_p
)->orig_instr
);
75 case ERROR_TARGET_NOT_HALTED
:
76 LOG_INFO("can't add breakpoint while target is running");
77 free((*breakpoint_p
)->orig_instr
);
87 LOG_DEBUG("added %s breakpoint at 0x%8.8" PRIx32
" of length 0x%8.8x",
88 breakpoint_type_strings
[(*breakpoint_p
)->type
],
89 (*breakpoint_p
)->address
, (*breakpoint_p
)->length
);
94 /* free up a breakpoint */
95 static void breakpoint_free(target_t
*target
, breakpoint_t
*breakpoint_remove
)
97 breakpoint_t
*breakpoint
= target
->breakpoints
;
98 breakpoint_t
**breakpoint_p
= &target
->breakpoints
;
102 if (breakpoint
== breakpoint_remove
)
104 breakpoint_p
= &breakpoint
->next
;
105 breakpoint
= breakpoint
->next
;
108 if (breakpoint
== NULL
)
111 target_remove_breakpoint(target
, breakpoint
);
113 (*breakpoint_p
) = breakpoint
->next
;
114 free(breakpoint
->orig_instr
);
118 void breakpoint_remove(target_t
*target
, uint32_t address
)
120 breakpoint_t
*breakpoint
= target
->breakpoints
;
121 breakpoint_t
**breakpoint_p
= &target
->breakpoints
;
125 if (breakpoint
->address
== address
)
127 breakpoint_p
= &breakpoint
->next
;
128 breakpoint
= breakpoint
->next
;
133 breakpoint_free(target
, breakpoint
);
137 LOG_ERROR("no breakpoint at address 0x%8.8" PRIx32
" found", address
);
141 void breakpoint_clear_target(target_t
*target
)
143 breakpoint_t
*breakpoint
;
144 while ((breakpoint
= target
->breakpoints
) != NULL
)
146 breakpoint_free(target
, breakpoint
);
150 breakpoint_t
* breakpoint_find(target_t
*target
, uint32_t address
)
152 breakpoint_t
*breakpoint
= target
->breakpoints
;
156 if (breakpoint
->address
== address
)
158 breakpoint
= breakpoint
->next
;
164 int watchpoint_add(target_t
*target
, uint32_t address
, uint32_t length
, enum watchpoint_rw rw
, uint32_t value
, uint32_t mask
)
166 watchpoint_t
*watchpoint
= target
->watchpoints
;
167 watchpoint_t
**watchpoint_p
= &target
->watchpoints
;
172 if (watchpoint
->address
== address
)
174 watchpoint_p
= &watchpoint
->next
;
175 watchpoint
= watchpoint
->next
;
178 (*watchpoint_p
) = malloc(sizeof(watchpoint_t
));
179 (*watchpoint_p
)->address
= address
;
180 (*watchpoint_p
)->length
= length
;
181 (*watchpoint_p
)->value
= value
;
182 (*watchpoint_p
)->mask
= mask
;
183 (*watchpoint_p
)->rw
= rw
;
184 (*watchpoint_p
)->set
= 0;
185 (*watchpoint_p
)->next
= NULL
;
187 if ((retval
= target_add_watchpoint(target
, *watchpoint_p
)) != ERROR_OK
)
191 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE
:
192 LOG_INFO("can't add %s watchpoint, resource not available", watchpoint_rw_strings
[(*watchpoint_p
)->rw
]);
193 free (*watchpoint_p
);
194 *watchpoint_p
= NULL
;
197 case ERROR_TARGET_NOT_HALTED
:
198 LOG_INFO("can't add watchpoint while target is running");
199 free (*watchpoint_p
);
200 *watchpoint_p
= NULL
;
204 LOG_ERROR("unknown error");
210 LOG_DEBUG("added %s watchpoint at 0x%8.8" PRIx32
" of length 0x%8.8x",
211 watchpoint_rw_strings
[(*watchpoint_p
)->rw
],
212 (*watchpoint_p
)->address
, (*watchpoint_p
)->length
);
217 static void watchpoint_free(target_t
*target
, watchpoint_t
*watchpoint_remove
)
219 watchpoint_t
*watchpoint
= target
->watchpoints
;
220 watchpoint_t
**watchpoint_p
= &target
->watchpoints
;
224 if (watchpoint
== watchpoint_remove
)
226 watchpoint_p
= &watchpoint
->next
;
227 watchpoint
= watchpoint
->next
;
230 if (watchpoint
== NULL
)
232 target_remove_watchpoint(target
, watchpoint
);
233 (*watchpoint_p
) = watchpoint
->next
;
237 void watchpoint_remove(target_t
*target
, uint32_t address
)
239 watchpoint_t
*watchpoint
= target
->watchpoints
;
240 watchpoint_t
**watchpoint_p
= &target
->watchpoints
;
244 if (watchpoint
->address
== address
)
246 watchpoint_p
= &watchpoint
->next
;
247 watchpoint
= watchpoint
->next
;
252 watchpoint_free(target
, watchpoint
);
256 LOG_ERROR("no watchpoint at address 0x%8.8" PRIx32
" found", address
);
260 void watchpoint_clear_target(target_t
*target
)
262 watchpoint_t
*watchpoint
;
263 while ((watchpoint
= target
->watchpoints
) != NULL
)
265 watchpoint_free(target
, watchpoint
);