return retval;
}
- cortex_m->fpb_enabled = 1;
+ cortex_m->fpb_enabled = true;
/* Restore FPB registers */
for (i = 0; i < cortex_m->fp_num_code + cortex_m->fp_num_lit; i++) {
fp_num++;
if (fp_num >= cortex_m->fp_num_code) {
LOG_ERROR("Can not find free FPB Comparator!");
- return ERROR_FAIL;
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
breakpoint->set = fp_num + 1;
fpcr_value = breakpoint->address | 1;
LOG_ERROR("Unhandled Cortex-M Flash Patch Breakpoint architecture revision");
return ERROR_FAIL;
}
- comparator_list[fp_num].used = 1;
+ comparator_list[fp_num].used = true;
comparator_list[fp_num].fpcr_value = fpcr_value;
target_write_u32(target, comparator_list[fp_num].fpcr_address,
comparator_list[fp_num].fpcr_value);
return retval;
}
- cortex_m->fpb_enabled = 1;
+ cortex_m->fpb_enabled = true;
}
} else if (breakpoint->type == BKPT_SOFT) {
uint8_t code[4];
LOG_DEBUG("Invalid FP Comparator number in breakpoint");
return ERROR_OK;
}
- comparator_list[fp_num].used = 0;
+ comparator_list[fp_num].used = false;
comparator_list[fp_num].fpcr_value = 0;
target_write_u32(target, comparator_list[fp_num].fpcr_address,
comparator_list[fp_num].fpcr_value);
} else {
/* restore original instruction (kept in target endianness) */
- if (breakpoint->length == 4) {
- retval = target_write_memory(target, breakpoint->address & 0xFFFFFFFE, 4, 1,
+ retval = target_write_memory(target, breakpoint->address & 0xFFFFFFFE,
+ breakpoint->length, 1,
breakpoint->orig_instr);
- if (retval != ERROR_OK)
- return retval;
- } else {
- retval = target_write_memory(target, breakpoint->address & 0xFFFFFFFE, 2, 1,
- breakpoint->orig_instr);
- if (retval != ERROR_OK)
- return retval;
- }
+ if (retval != ERROR_OK)
+ return retval;
}
breakpoint->set = false;
int cortex_m_add_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
- struct cortex_m_common *cortex_m = target_to_cm(target);
-
- if ((breakpoint->type == BKPT_HARD) && (cortex_m->fp_code_available < 1)) {
- LOG_INFO("no flash patch comparator unit available for hardware breakpoint");
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- }
-
if (breakpoint->length == 3) {
LOG_DEBUG("Using a two byte breakpoint for 32bit Thumb-2 request");
breakpoint->length = 2;
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
- if (breakpoint->type == BKPT_HARD)
- cortex_m->fp_code_available--;
-
return cortex_m_set_breakpoint(target, breakpoint);
}
int cortex_m_remove_breakpoint(struct target *target, struct breakpoint *breakpoint)
{
- struct cortex_m_common *cortex_m = target_to_cm(target);
-
- /* REVISIT why check? FPB can be updated with core running ... */
- if (target->state != TARGET_HALTED) {
- LOG_WARNING("target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
- if (breakpoint->set)
- cortex_m_unset_breakpoint(target, breakpoint);
-
- if (breakpoint->type == BKPT_HARD)
- cortex_m->fp_code_available++;
+ if (!breakpoint->set)
+ return ERROR_OK;
- return ERROR_OK;
+ return cortex_m_unset_breakpoint(target, breakpoint);
}
int cortex_m_set_watchpoint(struct target *target, struct watchpoint *watchpoint)
LOG_ERROR("Can not find free DWT Comparator");
return ERROR_FAIL;
}
- comparator->used = 1;
+ comparator->used = true;
watchpoint->set = dwt_num + 1;
comparator->comp = watchpoint->address;
}
comparator = cortex_m->dwt_comparator_list + dwt_num;
- comparator->used = 0;
+ comparator->used = false;
comparator->function = 0;
target_write_u32(target, comparator->dwt_comparator_address + 8,
comparator->function);
/* bits [14:12] and [7:4] */
cortex_m->fp_num_code = ((fpcr >> 8) & 0x70) | ((fpcr >> 4) & 0xF);
cortex_m->fp_num_lit = (fpcr >> 8) & 0xF;
- cortex_m->fp_code_available = cortex_m->fp_num_code;
/* Detect flash patch revision, see RM DDI 0403E.b page C1-817.
Revision is zero base, fp_rev == 1 means Rev.2 ! */
cortex_m->fp_rev = (fpcr >> 28) & 0xf;
armv7m->load_core_reg_u32 = cortex_m_load_core_reg_u32;
armv7m->store_core_reg_u32 = cortex_m_store_core_reg_u32;
- target_register_timer_callback(cortex_m_handle_target_request, 1, 1, target);
+ target_register_timer_callback(cortex_m_handle_target_request, 1,
+ TARGET_TIMER_TYPE_PERIODIC, target);
return ERROR_OK;
}