change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/kernel/debug/gdbstub.c
..
..
@@ -247,7 +247,7 @@
247
247
 	 */
248
248
 	tmp = buf + count;
249
249
 
250
-	err = probe_kernel_read(tmp, mem, count);
250
+	err = copy_from_kernel_nofault(tmp, mem, count);
251
251
 	if (err)
252
252
 		return NULL;
253
253
 	while (count > 0) {
..
..
@@ -283,7 +283,7 @@
283
283
 		*tmp_raw |= hex_to_bin(*tmp_hex--) << 4;
284
284
 	}
285
285
 
286
-	return probe_kernel_write(mem, tmp_raw, count);
286
+	return copy_to_kernel_nofault(mem, tmp_raw, count);
287
287
 }
288
288
 
289
289
 /*
..
..
@@ -335,7 +335,7 @@
335
335
 		size++;
336
336
 	}
337
337
 
338
-	return probe_kernel_write(mem, c, size);
338
+	return copy_to_kernel_nofault(mem, c, size);
339
339
 }
340
340
 
341
341
 #if DBG_MAX_REG_NUM > 0
..
..
@@ -725,7 +725,7 @@
725
725
 			}
726
726
 		}
727
727
 
728
-		do_each_thread(g, p) {
728
+		for_each_process_thread(g, p) {
729
729
 			if (i >= ks->thr_query && !finished) {
730
730
 				int_to_threadref(thref, p->pid);
731
731
 				ptr = pack_threadid(ptr, thref);
..
..
@@ -735,7 +735,7 @@
735
735
 					finished = 1;
736
736
 			}
737
737
 			i++;
738
-		} while_each_thread(g, p);
738
+		}
739
739
 
740
740
 		*(--ptr) = '\0';
741
741
 		break;
..
..
@@ -792,6 +792,19 @@
792
792
 		}
793
793
 		break;
794
794
 #endif
795
+#ifdef CONFIG_HAVE_ARCH_KGDB_QXFER_PKT
796
+	case 'S':
797
+		if (!strncmp(remcom_in_buffer, "qSupported:", 11))
798
+			strcpy(remcom_out_buffer, kgdb_arch_gdb_stub_feature);
799
+		break;
800
+	case 'X':
801
+		if (!strncmp(remcom_in_buffer, "qXfer:", 6))
802
+			kgdb_arch_handle_qxfer_pkt(remcom_in_buffer,
803
+						   remcom_out_buffer);
804
+		break;
805
+#endif
806
+	default:
807
+		break;
795
808
 	}
796
809
 }
797
810
 
..
..
@@ -1033,13 +1046,14 @@
1033
1046
 				return DBG_PASS_EVENT;
1034
1047
 			}
1035
1048
 #endif
1049
+			fallthrough;
1036
1050
 		case 'C': /* Exception passing */
1037
1051
 			tmp = gdb_cmd_exception_pass(ks);
1038
1052
 			if (tmp > 0)
1039
1053
 				goto default_handle;
1040
1054
 			if (tmp == 0)
1041
1055
 				break;
1042
-			/* Fall through on tmp < 0 */
1056
+			fallthrough;	/* on tmp < 0 */
1043
1057
 		case 'c': /* Continue packet */
1044
1058
 		case 's': /* Single step packet */
1045
1059
 			if (kgdb_contthread && kgdb_contthread != current) {
..
..
@@ -1047,8 +1061,7 @@
1047
1061
 				error_packet(remcom_out_buffer, -EINVAL);
1048
1062
 				break;
1049
1063
 			}
1050
-			dbg_activate_sw_breakpoints();
1051
-			/* Fall through to default processing */
1064
+			fallthrough;	/* to default processing */
1052
1065
 		default:
1053
1066
 default_handle:
1054
1067
 			error = kgdb_arch_handle_exception(ks->ex_vector,
..
..
@@ -1094,10 +1107,10 @@
1094
1107
 		return error;
1095
1108
 	case 's':
1096
1109
 	case 'c':
1097
-		strcpy(remcom_in_buffer, cmd);
1110
+		strscpy(remcom_in_buffer, cmd, sizeof(remcom_in_buffer));
1098
1111
 		return 0;
1099
1112
 	case '$':
1100
-		strcpy(remcom_in_buffer, cmd);
1113
+		strscpy(remcom_in_buffer, cmd, sizeof(remcom_in_buffer));
1101
1114
 		gdbstub_use_prev_in_buf = strlen(remcom_in_buffer);
1102
1115
 		gdbstub_prev_in_buf_pos = 0;
1103
1116
 		return 0;