- add support for new gdb QStartNoAckMode, which disables sending of ack's between...

[fw/openocd] / src / server / gdb_server.c

diff --git a/src/server/gdb_server.c b/src/server/gdb_server.c
index 356483d2f66ce60c410dab764b7aac8fc1939138..8733346476453e9d01136d7ba0e14d4152d23764 100644 (file)
--- a/src/server/gdb_server.c
+++ b/src/server/gdb_server.c
@@ -2,7 +2,7 @@
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
- *   Copyright (C) 2007,2008 Øyvind Harboe                                      *
+ *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
  *   oyvind.harboe@zylin.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -338,7 +338,10 @@ int gdb_put_packet_inner(connection_t *connection, char *buffer, int len)
                        gdb_write(connection, buffer, len);
                        gdb_write(connection, local_buffer+1, 3);
                }
-
+               
+               if (gdb_con->noack_mode)
+                       break;
+               
                if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
                        return retval;
 
@@ -477,7 +480,8 @@ int gdb_get_packet_inner(connection_t *connection, char *buffer, int *len)
                                                i++;
                                                my_checksum += character & 0xff;
                                                buffer[count++] = (character ^ 0x20) & 0xff;
-                                       } else
+                                       }
+                                       else
                                        {
                                                my_checksum += character & 0xff;
                                                buffer[count++] = character & 0xff;
@@ -515,7 +519,6 @@ int gdb_get_packet_inner(connection_t *connection, char *buffer, int *len)
                                my_checksum += character & 0xff;
                                buffer[count++] = character & 0xff;
                        }
-
                }
 
                *len = count;
@@ -530,12 +533,22 @@ int gdb_get_packet_inner(connection_t *connection, char *buffer, int *len)
 
                if (my_checksum == strtoul(checksum, NULL, 16))
                {
+                       if (gdb_con->noack_mode)
+                               break;
                        gdb_write(connection, "+", 1);
                        break;
                }
 
-               LOG_WARNING("checksum error, requesting retransmission");
-               gdb_write(connection, "-", 1);
+               if (!gdb_con->noack_mode)
+               {
+                       LOG_WARNING("checksum error, requesting retransmission");
+                       gdb_write(connection, "-", 1);
+               }
+               else
+               {
+                       LOG_WARNING("checksum error, no-ack-mode");
+                       break;
+               }
        }
        if (gdb_con->closed)
                return ERROR_SERVER_REMOTE_CLOSED;
@@ -664,6 +677,7 @@ int gdb_new_connection(connection_t *connection)
        gdb_connection->vflash_image = NULL;
        gdb_connection->closed = 0;
        gdb_connection->busy = 0;
+       gdb_connection->noack_mode = 0;
        
        /* send ACK to GDB for debug request */
        gdb_write(connection, "+", 1);
@@ -1459,7 +1473,8 @@ static int compare_bank (const void * a, const void * b)
 int gdb_query_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
 {
        command_context_t *cmd_ctx = connection->cmd_ctx;
-
+       gdb_connection_t *gdb_connection = connection->priv;
+       
        if (strstr(packet, "qRcmd,"))
        {
                if (packet_size > 6)
@@ -1536,7 +1551,7 @@ int gdb_query_packet(connection_t *connection, target_t *target, char *packet, i
                int size = 0;
 
                xml_printf(&retval, &buffer, &pos, &size,
-                               "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-",
+                               "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-;QStartNoAckMode+",
                                (GDB_BUFFER_SIZE - 1), ((gdb_use_memory_map == 1)&&(flash_get_bank_count()>0)) ? '+' : '-');
 
                if (retval != ERROR_OK)
@@ -1696,6 +1711,12 @@ int gdb_query_packet(connection_t *connection, target_t *target, char *packet, i
                free(xml);
                return ERROR_OK;
        }
+       else if (strstr(packet, "QStartNoAckMode"))
+       {
+               gdb_connection->noack_mode = 1;
+               gdb_put_packet(connection, "OK", 2);
+               return ERROR_OK;
+       }
 
        gdb_put_packet(connection, "", 0);
        return ERROR_OK;
@@ -1917,6 +1938,7 @@ int gdb_input_inner(connection_t *connection)
                                        gdb_put_packet(connection, NULL, 0);
                                        break;
                                case 'q':
+                               case 'Q':
                                        retval = gdb_query_packet(connection, target, packet, packet_size);
                                        break;
                                case 'g':