+int armv7m_maybe_skip_bkpt_inst(struct target *target, bool *inst_found)
+{
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ struct reg *r = armv7m->core_cache->reg_list + 15;
+ bool result = false;
+
+
+ /* if we halted last time due to a bkpt instruction
+ * then we have to manually step over it, otherwise
+ * the core will break again */
+
+ if (target->debug_reason == DBG_REASON_BREAKPOINT)
+ {
+ uint16_t op;
+ uint32_t pc = buf_get_u32(r->value, 0, 32);
+
+ pc &= ~1;
+ if (target_read_u16(target, pc, &op) == ERROR_OK)
+ {
+ if ((op & 0xFF00) == 0xBE00)
+ {
+ pc = buf_get_u32(r->value, 0, 32) + 2;
+ buf_set_u32(r->value, 0, 32, pc);
+ r->dirty = true;
+ r->valid = true;
+ result = true;
+ LOG_DEBUG("Skipping over BKPT instruction");
+ }
+ }
+ }
+
+ if (inst_found) {
+ *inst_found = result;
+ }
+
+ return ERROR_OK;
+}
+
+/*--------------------------------------------------------------------------*/
+
+/*
+ * Only stuff below this line should need to verify that its target
+ * is an ARMv7-M node.
+ *
+ * FIXME yet none of it _does_ verify target types yet!
+ */
+
+
+/*
+ * Return the debug ap baseaddress in hexadecimal;
+ * no extra output to simplify script processing
+ */
+COMMAND_HANDLER(handle_dap_baseaddr_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ struct swjdp_common *swjdp = &armv7m->swjdp_info;
+ uint32_t apsel, apselsave, baseaddr;
+ int retval;
+
+ apselsave = swjdp->apsel;
+ switch (CMD_ARGC) {
+ case 0:
+ apsel = swjdp->apsel;
+ break;
+ case 1:
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
+ break;
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (apselsave != apsel)
+ dap_ap_select(swjdp, apsel);
+
+ /* NOTE: assumes we're talking to a MEM-AP, which
+ * has a base address. There are other kinds of AP,
+ * though they're not common for now. This should
+ * use the ID register to verify it's a MEM-AP.
+ */
+ dap_ap_read_reg_u32(swjdp, AP_REG_BASE, &baseaddr);
+ retval = swjdp_transaction_endcheck(swjdp);
+ command_print(CMD_CTX, "0x%8.8" PRIx32 "", baseaddr);
+
+ if (apselsave != apsel)
+ dap_ap_select(swjdp, apselsave);
+
+ return retval;
+}
+
+/*
+ * Return the debug ap id in hexadecimal;
+ * no extra output to simplify script processing
+ */
+COMMAND_HANDLER(handle_dap_apid_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ struct swjdp_common *swjdp = &armv7m->swjdp_info;
+
+ return CALL_COMMAND_HANDLER(dap_apid_command, swjdp);
+}
+
+COMMAND_HANDLER(handle_dap_apsel_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ struct swjdp_common *swjdp = &armv7m->swjdp_info;
+
+ return CALL_COMMAND_HANDLER(dap_apsel_command, swjdp);
+}
+
+COMMAND_HANDLER(handle_dap_memaccess_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ struct swjdp_common *swjdp = &armv7m->swjdp_info;
+
+ return CALL_COMMAND_HANDLER(dap_memaccess_command, swjdp);
+}
+
+
+COMMAND_HANDLER(handle_dap_info_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ struct swjdp_common *swjdp = &armv7m->swjdp_info;
+ uint32_t apsel;
+
+ switch (CMD_ARGC) {
+ case 0:
+ apsel = swjdp->apsel;
+ break;
+ case 1:
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], apsel);
+ break;
+ default:
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ return dap_info_command(CMD_CTX, swjdp, apsel);
+}
+
+/* FIXME this table should be part of generic DAP support, and
+ * be shared by the ARMv7-A/R and ARMv7-M support ...
+ */
+static const struct command_registration armv7m_exec_command_handlers[] = {
+ {
+ .name = "info",
+ .handler = handle_dap_info_command,
+ .mode = COMMAND_EXEC,
+ .help = "display ROM table for MEM-AP "
+ "(default currently selected AP)",
+ .usage = "[ap_num]",
+ },
+ {
+ .name = "apsel",
+ .handler = handle_dap_apsel_command,
+ .mode = COMMAND_EXEC,
+ .help = "Set the currently selected AP (default 0) "
+ "and display the result",
+ .usage = "[ap_num]",
+ },
+ {
+ .name = "apid",
+ .handler = handle_dap_apid_command,
+ .mode = COMMAND_EXEC,
+ .help = "return ID register from AP "
+ "(default currently selected AP)",
+ .usage = "[ap_num]",
+ },
+ {
+ .name = "baseaddr",
+ .handler = handle_dap_baseaddr_command,
+ .mode = COMMAND_EXEC,
+ .help = "return debug base address from MEM-AP "
+ "(default currently selected AP)",
+ .usage = "[ap_num]",
+ },
+ {
+ .name = "memaccess",
+ .handler = handle_dap_memaccess_command,
+ .mode = COMMAND_EXEC,
+ .help = "set/get number of extra tck for MEM-AP memory "
+ "bus access [0-255]",
+ .usage = "[cycles]",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+const struct command_registration armv7m_command_handlers[] = {
+ {
+ .name = "dap",
+ .mode = COMMAND_EXEC,
+ .help = "Cortex DAP command group",
+ .chain = armv7m_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};