+ if (tdesc == NULL)
+ tdesc = tdesc_microblaze;
+
+ /* Check any target description for validity. */
+ if (tdesc_has_registers (tdesc))
+ {
+ const struct tdesc_feature *feature;
+ int valid_p;
+ int i;
+
+ feature = tdesc_find_feature (tdesc,
+ "org.gnu.gdb.microblaze.core");
+ if (feature == NULL)
+ return NULL;
+ tdesc_data = tdesc_data_alloc ();
+
+ valid_p = 1;
+ for (i = 0; i < MICROBLAZE_NUM_CORE_REGS; i++)
+ valid_p &= tdesc_numbered_register (feature, tdesc_data, i,
+ microblaze_register_names[i]);
+ feature = tdesc_find_feature (tdesc,
+ "org.gnu.gdb.microblaze.stack-protect");
+ if (feature != NULL)
+ {
+ valid_p = 1;
+ valid_p &= tdesc_numbered_register (feature, tdesc_data,
+ MICROBLAZE_SLR_REGNUM,
+ "rslr");
+ valid_p &= tdesc_numbered_register (feature, tdesc_data,
+ MICROBLAZE_SHR_REGNUM,
+ "rshr");
+ }
+
+ if (!valid_p)
+ {
+ tdesc_data_cleanup (tdesc_data);
+ return NULL;
+ }
+ }