#include "config.h"
#endif
-#include <stdlib.h>
-
-#include "binarybuffer.h"
#include "target.h"
#include "log.h"
-#include "types.h"
-
#include "breakpoints.h"
-char *breakpoint_type_strings[] =
+
+static char *breakpoint_type_strings[] =
{
"hardware",
"software"
};
-char *watchpoint_rw_strings[] =
+static char *watchpoint_rw_strings[] =
{
"read",
"write",
"access"
};
-int breakpoint_add(target_t *target, u32 address, u32 length, enum breakpoint_type type)
+// monotonic counter/id-number for breakpoints and watch points
+static int bpwp_unique_id;
+
+int breakpoint_add(target_t *target, uint32_t address, uint32_t length, enum breakpoint_type type)
{
- breakpoint_t *breakpoint = target->breakpoints;
- breakpoint_t **breakpoint_p = &target->breakpoints;
+ struct breakpoint *breakpoint = target->breakpoints;
+ struct breakpoint **breakpoint_p = &target->breakpoints;
int retval;
-
+ int n;
+
+ n = 0;
while (breakpoint)
{
- if (breakpoint->address == address)
+ n++;
+ if (breakpoint->address == address){
+ LOG_DEBUG("Duplicate Breakpoint address: 0x%08" PRIx32 " (BP %d)",
+ address, breakpoint->unique_id );
return ERROR_OK;
+ }
breakpoint_p = &breakpoint->next;
breakpoint = breakpoint->next;
}
-
- if ((retval = target->type->add_breakpoint(target, address, length, type)) != ERROR_OK)
+
+ (*breakpoint_p) = malloc(sizeof(struct breakpoint));
+ (*breakpoint_p)->address = address;
+ (*breakpoint_p)->length = length;
+ (*breakpoint_p)->type = type;
+ (*breakpoint_p)->set = 0;
+ (*breakpoint_p)->orig_instr = malloc(length);
+ (*breakpoint_p)->next = NULL;
+ (*breakpoint_p)->unique_id = bpwp_unique_id++;
+
+ if ((retval = target_add_breakpoint(target, *breakpoint_p)) != ERROR_OK)
{
switch (retval)
{
case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
- INFO("can't add %s breakpoint, resource not available", breakpoint_type_strings[type]);
+ LOG_INFO("can't add %s breakpoint, resource not available (BPID=%d)",
+ breakpoint_type_strings[(*breakpoint_p)->type],
+ (*breakpoint_p)->unique_id );
+
+ free((*breakpoint_p)->orig_instr);
+ free(*breakpoint_p);
+ *breakpoint_p = NULL;
return retval;
break;
case ERROR_TARGET_NOT_HALTED:
- INFO("can't add breakpoint while target is running");
+ LOG_INFO("can't add breakpoint while target is running (BPID: %d)",
+ (*breakpoint_p)->unique_id );
+ free((*breakpoint_p)->orig_instr);
+ free(*breakpoint_p);
+ *breakpoint_p = NULL;
return retval;
break;
default:
- ERROR("unknown error");
- exit(-1);
break;
}
}
-
- (*breakpoint_p) = malloc(sizeof(breakpoint_t));
- (*breakpoint_p)->address = address;
- (*breakpoint_p)->length = length;
- (*breakpoint_p)->type = type;
- (*breakpoint_p)->set = 0;
- (*breakpoint_p)->orig_instr = malloc(CEIL(length, 8));
- (*breakpoint_p)->next = NULL;
-
- DEBUG("added %s breakpoint at 0x%8.8x of length 0x%8.8x", breakpoint_type_strings[type], address, length);
-
+
+ LOG_DEBUG("added %s breakpoint at 0x%8.8" PRIx32 " of length 0x%8.8x, (BPID: %d)",
+ breakpoint_type_strings[(*breakpoint_p)->type],
+ (*breakpoint_p)->address, (*breakpoint_p)->length,
+ (*breakpoint_p)->unique_id );
+
return ERROR_OK;
}
-int breakpoint_remove(target_t *target, u32 address)
+/* free up a breakpoint */
+static void breakpoint_free(target_t *target, struct breakpoint *breakpoint_remove)
{
- breakpoint_t *breakpoint = target->breakpoints;
- breakpoint_t **breakpoint_p = &target->breakpoints;
- int retval;
-
+ struct breakpoint *breakpoint = target->breakpoints;
+ struct breakpoint **breakpoint_p = &target->breakpoints;
+
+ while (breakpoint)
+ {
+ if (breakpoint == breakpoint_remove)
+ break;
+ breakpoint_p = &breakpoint->next;
+ breakpoint = breakpoint->next;
+ }
+
+ if (breakpoint == NULL)
+ return;
+
+ target_remove_breakpoint(target, breakpoint);
+
+ LOG_DEBUG("BPID: %d", breakpoint->unique_id );
+ (*breakpoint_p) = breakpoint->next;
+ free(breakpoint->orig_instr);
+ free(breakpoint);
+}
+
+void breakpoint_remove(target_t *target, uint32_t address)
+{
+ struct breakpoint *breakpoint = target->breakpoints;
+ struct breakpoint **breakpoint_p = &target->breakpoints;
+
while (breakpoint)
{
if (breakpoint->address == address)
breakpoint_p = &breakpoint->next;
breakpoint = breakpoint->next;
}
-
+
if (breakpoint)
{
- if ((retval = target->type->remove_breakpoint(target, breakpoint)) != ERROR_OK)
- {
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- INFO("can't remove breakpoint while target is running");
- return retval;
- break;
- default:
- ERROR("unknown error");
- exit(-1);
- break;
- }
- }
- (*breakpoint_p) = breakpoint->next;
- free(breakpoint->orig_instr);
- free(breakpoint);
+ breakpoint_free(target, breakpoint);
}
else
{
- ERROR("no breakpoint at address 0x%8.8x found", address);
+ LOG_ERROR("no breakpoint at address 0x%8.8" PRIx32 " found", address);
}
-
- return ERROR_OK;
}
-breakpoint_t* breakpoint_find(target_t *target, u32 address)
+void breakpoint_clear_target(target_t *target)
{
- breakpoint_t *breakpoint = target->breakpoints;
-
+ struct breakpoint *breakpoint;
+ LOG_DEBUG("Delete all breakpoints for target: %s", target_get_name( target ));
+ while ((breakpoint = target->breakpoints) != NULL)
+ {
+ breakpoint_free(target, breakpoint);
+ }
+}
+
+struct breakpoint* breakpoint_find(target_t *target, uint32_t address)
+{
+ struct breakpoint *breakpoint = target->breakpoints;
+
while (breakpoint)
{
if (breakpoint->address == address)
return breakpoint;
breakpoint = breakpoint->next;
}
-
+
return NULL;
}
-int watchpoint_add(target_t *target, u32 address, u32 length, enum watchpoint_rw rw, u32 value, u32 mask)
+int watchpoint_add(target_t *target, uint32_t address, uint32_t length,
+ enum watchpoint_rw rw, uint32_t value, uint32_t mask)
{
- watchpoint_t *watchpoint = target->watchpoints;
- watchpoint_t **watchpoint_p = &target->watchpoints;
+ struct watchpoint *watchpoint = target->watchpoints;
+ struct watchpoint **watchpoint_p = &target->watchpoints;
int retval;
-
+ char *reason;
+
while (watchpoint)
{
- if (watchpoint->address == address)
+ if (watchpoint->address == address) {
+ if (watchpoint->length != length
+ || watchpoint->value != value
+ || watchpoint->mask != mask
+ || watchpoint->rw != rw) {
+ LOG_ERROR("address 0x%8.8" PRIx32
+ "already has watchpoint %d",
+ address, watchpoint->unique_id);
+ return ERROR_FAIL;
+ }
+
+ /* ignore duplicate watchpoint */
return ERROR_OK;
+ }
watchpoint_p = &watchpoint->next;
watchpoint = watchpoint->next;
}
-
- if ((retval = target->type->add_watchpoint(target, address, length, rw)) != ERROR_OK)
- {
- switch (retval)
- {
- case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
- INFO("can't add %s watchpoint, resource not available", watchpoint_rw_strings[rw]);
- return retval;
- break;
- default:
- ERROR("unknown error");
- exit(-1);
- break;
- }
- }
-
- (*watchpoint_p) = malloc(sizeof(watchpoint_t));
+
+ (*watchpoint_p) = calloc(1, sizeof(struct watchpoint));
(*watchpoint_p)->address = address;
(*watchpoint_p)->length = length;
(*watchpoint_p)->value = value;
(*watchpoint_p)->mask = mask;
(*watchpoint_p)->rw = rw;
- (*watchpoint_p)->set = 0;
- (*watchpoint_p)->next = NULL;
-
- DEBUG("added %s watchpoint at 0x%8.8x of length 0x%8.8x", watchpoint_rw_strings[rw], address, length);
-
+ (*watchpoint_p)->unique_id = bpwp_unique_id++;
+
+ retval = target_add_watchpoint(target, *watchpoint_p);
+ switch (retval) {
+ case ERROR_OK:
+ break;
+ case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
+ reason = "resource not available";
+ goto bye;
+ case ERROR_TARGET_NOT_HALTED:
+ reason = "target running";
+ goto bye;
+ default:
+ reason = "unrecognized error";
+bye:
+ LOG_ERROR("can't add %s watchpoint at 0x%8.8" PRIx32 ", %s",
+ watchpoint_rw_strings[(*watchpoint_p)->rw],
+ address, reason);
+ free (*watchpoint_p);
+ *watchpoint_p = NULL;
+ return retval;
+ }
+
+ LOG_DEBUG("added %s watchpoint at 0x%8.8" PRIx32 " of length 0x%8.8x (WPID: %d)",
+ watchpoint_rw_strings[(*watchpoint_p)->rw],
+ (*watchpoint_p)->address,
+ (*watchpoint_p)->length,
+ (*watchpoint_p)->unique_id );
+
return ERROR_OK;
}
-int watchpoint_remove(target_t *target, u32 address)
+static void watchpoint_free(target_t *target, struct watchpoint *watchpoint_remove)
{
- watchpoint_t *watchpoint = target->watchpoints;
- watchpoint_t **watchpoint_p = &target->watchpoints;
- int retval;
-
+ struct watchpoint *watchpoint = target->watchpoints;
+ struct watchpoint **watchpoint_p = &target->watchpoints;
+
+ while (watchpoint)
+ {
+ if (watchpoint == watchpoint_remove)
+ break;
+ watchpoint_p = &watchpoint->next;
+ watchpoint = watchpoint->next;
+ }
+
+ if (watchpoint == NULL)
+ return;
+ target_remove_watchpoint(target, watchpoint);
+ LOG_DEBUG("WPID: %d", watchpoint->unique_id );
+ (*watchpoint_p) = watchpoint->next;
+ free(watchpoint);
+}
+
+void watchpoint_remove(target_t *target, uint32_t address)
+{
+ struct watchpoint *watchpoint = target->watchpoints;
+ struct watchpoint **watchpoint_p = &target->watchpoints;
+
while (watchpoint)
{
if (watchpoint->address == address)
watchpoint_p = &watchpoint->next;
watchpoint = watchpoint->next;
}
-
+
if (watchpoint)
{
- if ((retval = target->type->remove_watchpoint(target, watchpoint)) != ERROR_OK)
- {
- ERROR("BUG: can't remove watchpoint");
- exit(-1);
- }
- (*watchpoint_p) = watchpoint->next;
- free(watchpoint);
+ watchpoint_free(target, watchpoint);
}
else
{
- ERROR("no watchpoint at address 0x%8.8x found", address);
+ LOG_ERROR("no watchpoint at address 0x%8.8" PRIx32 " found", address);
+ }
+}
+
+void watchpoint_clear_target(target_t *target)
+{
+ struct watchpoint *watchpoint;
+ LOG_DEBUG("Delete all watchpoints for target: %s", target_get_name( target ));
+ while ((watchpoint = target->watchpoints) != NULL)
+ {
+ watchpoint_free(target, watchpoint);
}
-
- return ERROR_OK;
}
projects / fw / openocd / blobdiff