struct target *all_targets;
static struct target_event_callback *target_event_callbacks;
static struct target_timer_callback *target_timer_callbacks;
+LIST_HEAD(target_reset_callback_list);
static const int polling_interval = 100;
static const Jim_Nvp nvp_assert[] = {
{ .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
{ .value = TARGET_EVENT_GDB_FLASH_ERASE_END , .name = "gdb-flash-erase-end" },
+ { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
+
{ .name = NULL, .value = -1 }
};
return cp;
}
+const char *target_event_name(enum target_event event)
+{
+ const char *cp;
+ cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
+ if (!cp) {
+ LOG_ERROR("Invalid target event: %d", (int)(event));
+ cp = "(*BUG*unknown*BUG*)";
+ }
+ return cp;
+}
+
+const char *target_reset_mode_name(enum target_reset_mode reset_mode)
+{
+ const char *cp;
+ cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
+ if (!cp) {
+ LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
+ cp = "(*BUG*unknown*BUG*)";
+ }
+ return cp;
+}
+
/* determine the number of the new target */
static int new_target_number(void)
{
}
/* returns a pointer to the n-th configured target */
-static struct target *get_target_by_num(int num)
+struct target *get_target_by_num(int num)
{
struct target *target = all_targets;
return ERROR_FAIL;
}
+ struct target *target;
+ for (target = all_targets; target; target = target->next)
+ target_call_reset_callbacks(target, reset_mode);
+
/* disable polling during reset to make reset event scripts
* more predictable, i.e. dr/irscan & pathmove in events will
* not have JTAG operations injected into the middle of a sequence.
/* We want any events to be processed before the prompt */
retval = target_call_timer_callbacks_now();
- struct target *target;
for (target = all_targets; target; target = target->next) {
target->type->check_reset(target);
target->running_alg = false;
int target_examine_one(struct target *target)
{
- return target->type->examine(target);
+ target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
+
+ int retval = target->type->examine(target);
+ if (retval != ERROR_OK)
+ return retval;
+
+ target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
+
+ return ERROR_OK;
}
static int jtag_enable_callback(enum jtag_event event, void *priv)
jtag_unregister_event_callback(jtag_enable_callback, target);
- target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
-
- int retval = target_examine_one(target);
- if (retval != ERROR_OK)
- return retval;
-
- target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
-
- return retval;
+ return target_examine_one(target);
}
/* Targets that correctly implement init + examine, i.e.
continue;
}
- target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
-
retval = target_examine_one(target);
if (retval != ERROR_OK)
return retval;
-
- target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
}
return retval;
}
break;
}
- if ((rp & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
+ if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
break;
}
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
+ if (!target->type->read_memory) {
+ LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
+ return ERROR_FAIL;
+ }
return target->type->read_memory(target, address, size, count, buffer);
}
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
+ if (!target->type->read_phys_memory) {
+ LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
+ return ERROR_FAIL;
+ }
return target->type->read_phys_memory(target, address, size, count, buffer);
}
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
+ if (!target->type->write_memory) {
+ LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
+ return ERROR_FAIL;
+ }
return target->type->write_memory(target, address, size, count, buffer);
}
LOG_ERROR("Target not examined yet");
return ERROR_FAIL;
}
+ if (!target->type->write_phys_memory) {
+ LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
+ return ERROR_FAIL;
+ }
return target->type->write_phys_memory(target, address, size, count, buffer);
}
target->examined = false;
}
-static int err_read_phys_memory(struct target *target, uint32_t address,
- uint32_t size, uint32_t count, uint8_t *buffer)
-{
- LOG_ERROR("Not implemented: %s", __func__);
- return ERROR_FAIL;
-}
-
-static int err_write_phys_memory(struct target *target, uint32_t address,
- uint32_t size, uint32_t count, const uint8_t *buffer)
-{
- LOG_ERROR("Not implemented: %s", __func__);
- return ERROR_FAIL;
-}
-
static int handle_target(void *priv);
static int target_init_one(struct command_context *cmd_ctx,
* implement it in stages, but warn if we need to do so.
*/
if (type->mmu) {
- if (type->write_phys_memory == NULL) {
- LOG_ERROR("type '%s' is missing write_phys_memory",
- type->name);
- type->write_phys_memory = err_write_phys_memory;
- }
- if (type->read_phys_memory == NULL) {
- LOG_ERROR("type '%s' is missing read_phys_memory",
- type->name);
- type->read_phys_memory = err_read_phys_memory;
- }
if (type->virt2phys == NULL) {
LOG_ERROR("type '%s' is missing virt2phys", type->name);
type->virt2phys = identity_virt2phys;
return ERROR_OK;
}
+int target_register_reset_callback(int (*callback)(struct target *target,
+ enum target_reset_mode reset_mode, void *priv), void *priv)
+{
+ struct target_reset_callback *entry;
+
+ if (callback == NULL)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ entry = malloc(sizeof(struct target_reset_callback));
+ if (entry == NULL) {
+ LOG_ERROR("error allocating buffer for reset callback entry");
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ entry->callback = callback;
+ entry->priv = priv;
+ list_add(&entry->list, &target_reset_callback_list);
+
+
+ return ERROR_OK;
+}
+
int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
{
struct target_timer_callback **callbacks_p = &target_timer_callbacks;
(*callbacks_p)->callback = callback;
(*callbacks_p)->periodic = periodic;
(*callbacks_p)->time_ms = time_ms;
+ (*callbacks_p)->removed = false;
gettimeofday(&now, NULL);
(*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
return ERROR_OK;
}
-int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
+int target_unregister_reset_callback(int (*callback)(struct target *target,
+ enum target_reset_mode reset_mode, void *priv), void *priv)
{
- struct target_timer_callback **p = &target_timer_callbacks;
- struct target_timer_callback *c = target_timer_callbacks;
+ struct target_reset_callback *entry;
if (callback == NULL)
return ERROR_COMMAND_SYNTAX_ERROR;
- while (c) {
- struct target_timer_callback *next = c->next;
+ list_for_each_entry(entry, &target_reset_callback_list, list) {
+ if (entry->callback == callback && entry->priv == priv) {
+ list_del(&entry->list);
+ free(entry);
+ break;
+ }
+ }
+
+ return ERROR_OK;
+}
+
+int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
+{
+ if (callback == NULL)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ for (struct target_timer_callback *c = target_timer_callbacks;
+ c; c = c->next) {
if ((c->callback == callback) && (c->priv == priv)) {
- *p = next;
- free(c);
+ c->removed = true;
return ERROR_OK;
- } else
- p = &(c->next);
- c = next;
+ }
}
- return ERROR_OK;
+ return ERROR_FAIL;
}
int target_call_event_callbacks(struct target *target, enum target_event event)
return ERROR_OK;
}
+int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
+{
+ struct target_reset_callback *callback;
+
+ LOG_DEBUG("target reset %i (%s)", reset_mode,
+ Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
+
+ list_for_each_entry(callback, &target_reset_callback_list, list)
+ callback->callback(target, reset_mode, callback->priv);
+
+ return ERROR_OK;
+}
+
static int target_timer_callback_periodic_restart(
struct target_timer_callback *cb, struct timeval *now)
{
static int target_call_timer_callbacks_check_time(int checktime)
{
+ static bool callback_processing;
+
+ /* Do not allow nesting */
+ if (callback_processing)
+ return ERROR_OK;
+
+ callback_processing = true;
+
keep_alive();
struct timeval now;
gettimeofday(&now, NULL);
- struct target_timer_callback *callback = target_timer_callbacks;
- while (callback) {
- /* cleaning up may unregister and free this callback */
- struct target_timer_callback *next_callback = callback->next;
+ /* Store an address of the place containing a pointer to the
+ * next item; initially, that's a standalone "root of the
+ * list" variable. */
+ struct target_timer_callback **callback = &target_timer_callbacks;
+ while (*callback) {
+ if ((*callback)->removed) {
+ struct target_timer_callback *p = *callback;
+ *callback = (*callback)->next;
+ free(p);
+ continue;
+ }
- bool call_it = callback->callback &&
- ((!checktime && callback->periodic) ||
- now.tv_sec > callback->when.tv_sec ||
- (now.tv_sec == callback->when.tv_sec &&
- now.tv_usec >= callback->when.tv_usec));
+ bool call_it = (*callback)->callback &&
+ ((!checktime && (*callback)->periodic) ||
+ now.tv_sec > (*callback)->when.tv_sec ||
+ (now.tv_sec == (*callback)->when.tv_sec &&
+ now.tv_usec >= (*callback)->when.tv_usec));
- if (call_it) {
- int retval = target_call_timer_callback(callback, &now);
- if (retval != ERROR_OK)
- return retval;
- }
+ if (call_it)
+ target_call_timer_callback(*callback, &now);
- callback = next_callback;
+ callback = &(*callback)->next;
}
+ callback_processing = false;
return ERROR_OK;
}
return target_free_working_area_restore(target, area, 1);
}
+void target_quit(void)
+{
+ struct target_event_callback *pe = target_event_callbacks;
+ while (pe) {
+ struct target_event_callback *t = pe->next;
+ free(pe);
+ pe = t;
+ }
+ target_event_callbacks = NULL;
+
+ struct target_timer_callback *pt = target_timer_callbacks;
+ while (pt) {
+ struct target_timer_callback *t = pt->next;
+ free(pt);
+ pt = t;
+ }
+ target_timer_callbacks = NULL;
+
+ for (struct target *target = all_targets;
+ target; target = target->next) {
+ if (target->type->deinit_target)
+ target->type->deinit_target(target);
+ }
+}
+
/* free resources and restore memory, if restoring memory fails,
* free up resources anyway
*/
target->backoff.times *= 2;
target->backoff.times++;
}
- LOG_USER("Polling target %s failed, GDB will be halted. Polling again in %dms",
- target_name(target),
- target->backoff.times * polling_interval);
/* Tell GDB to halt the debugger. This allows the user to
* run monitor commands to handle the situation.
*/
target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
- return retval;
}
- /* Since we succeeded, we reset backoff count */
if (target->backoff.times > 0) {
- LOG_USER("Polling target %s succeeded again, trying to reexamine", target_name(target));
+ LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
target_reset_examined(target);
retval = target_examine_one(target);
/* Target examination could have failed due to unstable connection,
* but we set the examined flag anyway to repoll it later */
if (retval != ERROR_OK) {
target->examined = true;
+ LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
+ target->backoff.times * polling_interval);
return retval;
}
}
+ /* Since we succeeded, we reset backoff count */
target->backoff.times = 0;
}
}
Code Review / openocd.git / blobdiff