1 /***************************************************************************
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2 * Copyright (C) 2005 by Dominic Rath *
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3 * Dominic.Rath@gmx.de *
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5 * This program is free software; you can redistribute it and/or modify *
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6 * it under the terms of the GNU General Public License as published by *
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7 * the Free Software Foundation; either version 2 of the License, or *
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8 * (at your option) any later version. *
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10 * This program is distributed in the hope that it will be useful, *
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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13 * GNU General Public License for more details. *
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15 * You should have received a copy of the GNU General Public License *
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16 * along with this program; if not, write to the *
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17 * Free Software Foundation, Inc., *
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18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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19 ***************************************************************************/
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20 #ifdef HAVE_CONFIG_H
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24 #include "replacements.h"
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26 #include "gdb_server.h"
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30 #include "binarybuffer.h"
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32 #include "breakpoints.h"
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34 #include "target_request.h"
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35 #include "configuration.h"
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43 #define _DEBUG_GDB_IO_
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46 static unsigned short gdb_port;
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47 static const char *DIGITS = "0123456789abcdef";
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49 static void gdb_log_callback(void *priv, const char *file, int line,
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50 const char *function, const char *format, va_list args);
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52 enum gdb_detach_mode
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60 /* target behaviour on gdb detach */
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61 enum gdb_detach_mode detach_mode = GDB_DETACH_RESUME;
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63 /* set if we are sending a memory map to gdb
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64 * via qXfer:memory-map:read packet */
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65 int gdb_use_memory_map = 0;
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66 int gdb_flash_program = 0;
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68 /* if set, data aborts cause an error to be reported in memory read packets
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69 * see the code in gdb_read_memory_packet() for further explanations */
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70 int gdb_report_data_abort = 0;
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72 int gdb_last_signal(target_t *target)
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74 switch (target->debug_reason)
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76 case DBG_REASON_DBGRQ:
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77 return 0x2; /* SIGINT */
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78 case DBG_REASON_BREAKPOINT:
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79 case DBG_REASON_WATCHPOINT:
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80 case DBG_REASON_WPTANDBKPT:
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81 return 0x05; /* SIGTRAP */
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82 case DBG_REASON_SINGLESTEP:
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83 return 0x05; /* SIGTRAP */
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84 case DBG_REASON_NOTHALTED:
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85 return 0x0; /* no signal... shouldn't happen */
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87 ERROR("BUG: undefined debug reason");
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92 int gdb_get_char(connection_t *connection, int* next_char)
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94 gdb_connection_t *gdb_con = connection->priv;
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96 #ifdef _DEBUG_GDB_IO_
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100 if (gdb_con->buf_cnt-- > 0)
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102 *next_char = *(gdb_con->buf_p++);
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103 if (gdb_con->buf_cnt > 0)
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104 connection->input_pending = 1;
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106 connection->input_pending = 0;
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108 #ifdef _DEBUG_GDB_IO_
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109 DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
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118 /* a non-blocking socket will block if there is 0 bytes available on the socket,
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119 * but return with as many bytes as are available immediately
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124 FD_ZERO(&read_fds);
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125 FD_SET(connection->fd, &read_fds);
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129 if (select(connection->fd + 1, &read_fds, NULL, NULL, &tv) == 0)
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131 /* This can typically be because a "monitor" command took too long
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132 * before printing any progress messages
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134 return ERROR_GDB_TIMEOUT;
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137 gdb_con->buf_cnt = read_socket(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
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138 if (gdb_con->buf_cnt > 0)
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142 if (gdb_con->buf_cnt == 0)
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144 gdb_con->closed = 1;
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145 return ERROR_SERVER_REMOTE_CLOSED;
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149 errno = WSAGetLastError();
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153 case WSAEWOULDBLOCK:
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156 case WSAECONNABORTED:
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157 return ERROR_SERVER_REMOTE_CLOSED;
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158 case WSAECONNRESET:
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159 return ERROR_SERVER_REMOTE_CLOSED;
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161 ERROR("read: %d", errno);
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171 return ERROR_SERVER_REMOTE_CLOSED;
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173 return ERROR_SERVER_REMOTE_CLOSED;
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175 ERROR("read: %s", strerror(errno));
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176 return ERROR_SERVER_REMOTE_CLOSED;
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181 #ifdef _DEBUG_GDB_IO_
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182 debug_buffer = malloc(gdb_con->buf_cnt + 1);
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183 memcpy(debug_buffer, gdb_con->buffer, gdb_con->buf_cnt);
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184 debug_buffer[gdb_con->buf_cnt] = 0;
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185 DEBUG("received '%s'", debug_buffer);
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186 free(debug_buffer);
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189 gdb_con->buf_p = gdb_con->buffer;
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190 gdb_con->buf_cnt--;
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191 *next_char = *(gdb_con->buf_p++);
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192 if (gdb_con->buf_cnt > 0)
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193 connection->input_pending = 1;
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195 connection->input_pending = 0;
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196 #ifdef _DEBUG_GDB_IO_
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197 DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
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203 int gdb_putback_char(connection_t *connection, int last_char)
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205 gdb_connection_t *gdb_con = connection->priv;
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207 if (gdb_con->buf_p > gdb_con->buffer)
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209 *(--gdb_con->buf_p) = last_char;
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210 gdb_con->buf_cnt++;
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214 ERROR("BUG: couldn't put character back");
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220 /* The only way we can detect that the socket is closed is the first time
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221 * we write to it, we will fail. Subsequent write operations will
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222 * succeed. Shudder! */
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223 int gdb_write(connection_t *connection, void *data, int len)
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225 gdb_connection_t *gdb_con = connection->priv;
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226 if (gdb_con->closed)
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227 return ERROR_SERVER_REMOTE_CLOSED;
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229 if (write_socket(connection->fd, data, len) == len)
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233 gdb_con->closed = 1;
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234 return ERROR_SERVER_REMOTE_CLOSED;
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237 int gdb_put_packet_inner(connection_t *connection, char *buffer, int len)
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240 unsigned char my_checksum = 0;
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241 #ifdef _DEBUG_GDB_IO_
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242 char *debug_buffer;
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246 gdb_connection_t *gdb_con = connection->priv;
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248 for (i = 0; i < len; i++)
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249 my_checksum += buffer[i];
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253 #ifdef _DEBUG_GDB_IO_
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254 debug_buffer = malloc(len + 1);
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255 memcpy(debug_buffer, buffer, len);
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256 debug_buffer[len] = 0;
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257 DEBUG("sending packet '$%s#%2.2x'", debug_buffer, my_checksum);
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258 free(debug_buffer);
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262 gdb_write(connection, "$", 1);
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264 gdb_write(connection, buffer, len);
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265 gdb_write(connection, "#", 1);
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267 snprintf(checksum, 3, "%2.2x", my_checksum);
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269 gdb_write(connection, checksum, 2);
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271 void *allocated = NULL;
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272 char stackAlloc[1024];
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273 char *t = stackAlloc;
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274 int totalLen = 1 + len + 1 + 2;
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275 if (totalLen > sizeof(stackAlloc))
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277 allocated = malloc(totalLen);
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279 if (allocated == NULL)
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281 ERROR("Ran out of memory trying to reply packet %d\n", totalLen);
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286 memcpy(t + 1, buffer, len);
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288 t[1 + len + 1] = DIGITS[(my_checksum >> 4) & 0xf];
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289 t[1 + len + 2] = DIGITS[my_checksum & 0xf];
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291 gdb_write(connection, t, totalLen);
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298 if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
\r
303 else if (reply == '-')
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305 /* Stop sending output packets for now */
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306 log_remove_callback(gdb_log_callback, connection);
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307 WARNING("negative reply, retrying");
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309 else if (reply == 0x3)
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311 gdb_con->ctrl_c = 1;
\r
312 if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
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316 else if (reply == '-')
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318 /* Stop sending output packets for now */
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319 log_remove_callback(gdb_log_callback, connection);
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320 WARNING("negative reply, retrying");
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324 ERROR("unknown character 0x%2.2x in reply, dropping connection", reply);
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325 return ERROR_SERVER_REMOTE_CLOSED;
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330 ERROR("unknown character 0x%2.2x in reply, dropping connection", reply);
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331 return ERROR_SERVER_REMOTE_CLOSED;
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334 if (gdb_con->closed)
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335 return ERROR_SERVER_REMOTE_CLOSED;
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340 int gdb_put_packet(connection_t *connection, char *buffer, int len)
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342 gdb_connection_t *gdb_con = connection->priv;
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344 int retval = gdb_put_packet_inner(connection, buffer, len);
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349 int gdb_get_packet_inner(connection_t *connection, char *buffer, int *len)
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355 unsigned char my_checksum = 0;
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356 gdb_connection_t *gdb_con = connection->priv;
\r
362 if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
\r
365 #ifdef _DEBUG_GDB_IO_
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366 DEBUG("character: '%c'", character);
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374 WARNING("acknowledgment received, but no packet pending");
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377 WARNING("negative acknowledgment, but no packet pending");
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380 gdb_con->ctrl_c = 1;
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384 WARNING("ignoring character 0x%x", character);
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387 } while (character != '$');
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392 gdb_connection_t *gdb_con = connection->priv;
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395 /* The common case is that we have an entire packet with no escape chars.
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396 * We need to leave at least 2 bytes in the buffer to have
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397 * gdb_get_char() update various bits and bobs correctly.
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399 if ((gdb_con->buf_cnt > 2) && ((gdb_con->buf_cnt+count) < *len))
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401 /* The compiler will struggle a bit with constant propagation and
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402 * aliasing, so we help it by showing that these values do not
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403 * change inside the loop
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406 char *buf = gdb_con->buf_p;
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407 int run = gdb_con->buf_cnt - 2;
\r
412 character = *buf++;
\r
414 if (character == '#')
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416 /* Danger! character can be '#' when esc is
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417 * used so we need an explicit boolean for done here.
\r
423 if (character == '}')
\r
425 /* data transmitted in binary mode (X packet)
\r
426 * uses 0x7d as escape character */
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427 my_checksum += character & 0xff;
\r
428 character = *buf++;
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430 my_checksum += character & 0xff;
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431 buffer[count++] = (character ^ 0x20) & 0xff;
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434 my_checksum += character & 0xff;
\r
435 buffer[count++] = character & 0xff;
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438 gdb_con->buf_p += i;
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439 gdb_con->buf_cnt -= i;
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445 ERROR("packet buffer too small");
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446 return ERROR_GDB_BUFFER_TOO_SMALL;
\r
449 if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
\r
452 if (character == '#')
\r
455 if (character == '}')
\r
457 /* data transmitted in binary mode (X packet)
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458 * uses 0x7d as escape character */
\r
459 my_checksum += character & 0xff;
\r
460 if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
\r
462 my_checksum += character & 0xff;
\r
463 buffer[count++] = (character ^ 0x20) & 0xff;
\r
467 my_checksum += character & 0xff;
\r
468 buffer[count++] = character & 0xff;
\r
475 if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
\r
477 checksum[0] = character;
\r
478 if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
\r
480 checksum[1] = character;
\r
483 if (my_checksum == strtoul(checksum, NULL, 16))
\r
485 gdb_write(connection, "+", 1);
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489 WARNING("checksum error, requesting retransmission");
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490 gdb_write(connection, "-", 1);
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492 if (gdb_con->closed)
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493 return ERROR_SERVER_REMOTE_CLOSED;
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498 int gdb_get_packet(connection_t *connection, char *buffer, int *len)
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500 gdb_connection_t *gdb_con = connection->priv;
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502 int retval = gdb_get_packet_inner(connection, buffer, len);
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507 int gdb_output_con(connection_t *connection, char* line)
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512 bin_size = strlen(line);
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514 hex_buffer = malloc(bin_size*2 + 4);
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516 hex_buffer[0] = 'O';
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517 for (i=0; i<bin_size; i++)
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518 snprintf(hex_buffer + 1 + i*2, 3, "%2.2x", line[i]);
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519 hex_buffer[bin_size*2+1] = '0';
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520 hex_buffer[bin_size*2+2] = 'a';
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521 hex_buffer[bin_size*2+3] = 0x0;
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523 gdb_put_packet(connection, hex_buffer, bin_size*2 + 3);
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529 int gdb_output(struct command_context_s *context, char* line)
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531 /* this will be dumped to the log and also sent as an O packet if possible */
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536 int gdb_program_handler(struct target_s *target, enum target_event event, void *priv)
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539 struct command_context_s *cmd_ctx = priv;
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541 if (target->gdb_program_script)
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543 script = open_file_from_path(cmd_ctx, target->gdb_program_script, "r");
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546 ERROR("couldn't open script file %s", target->gdb_program_script);
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550 INFO("executing gdb_program script '%s'", target->gdb_program_script);
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551 command_run_file(cmd_ctx, script, COMMAND_EXEC);
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554 jtag_execute_queue();
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560 int gdb_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv)
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562 connection_t *connection = priv;
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563 gdb_connection_t *gdb_connection = connection->priv;
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569 case TARGET_EVENT_HALTED:
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570 /* In the GDB protocol when we are stepping or coninuing execution,
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571 * we have a lingering reply. Upon receiving a halted event
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572 * when we have that lingering packet, we reply to the original
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573 * step or continue packet.
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575 * Executing monitor commands can bring the target in and
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576 * out of the running state so we'll see lots of TARGET_EVENT_XXX
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577 * that are to be ignored.
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579 if (gdb_connection->frontend_state == TARGET_RUNNING)
\r
581 /* stop forwarding log packets! */
\r
582 log_remove_callback(gdb_log_callback, connection);
\r
584 if (gdb_connection->ctrl_c)
\r
587 gdb_connection->ctrl_c = 0;
\r
591 signal = gdb_last_signal(target);
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594 snprintf(sig_reply, 4, "T%2.2x", signal);
\r
595 gdb_put_packet(connection, sig_reply, 3);
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596 gdb_connection->frontend_state = TARGET_HALTED;
\r
599 case TARGET_EVENT_GDB_PROGRAM:
\r
600 gdb_program_handler(target, event, connection->cmd_ctx);
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609 int gdb_new_connection(connection_t *connection)
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611 gdb_connection_t *gdb_connection = malloc(sizeof(gdb_connection_t));
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612 gdb_service_t *gdb_service = connection->service->priv;
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616 connection->priv = gdb_connection;
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618 /* initialize gdb connection information */
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619 gdb_connection->buf_p = gdb_connection->buffer;
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620 gdb_connection->buf_cnt = 0;
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621 gdb_connection->ctrl_c = 0;
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622 gdb_connection->frontend_state = TARGET_HALTED;
\r
623 gdb_connection->vflash_image = NULL;
\r
624 gdb_connection->closed = 0;
\r
625 gdb_connection->busy = 0;
\r
627 /* output goes through gdb connection */
\r
628 command_set_output_handler(connection->cmd_ctx, gdb_output, connection);
\r
630 /* register callback to be informed about target events */
\r
631 target_register_event_callback(gdb_target_callback_event_handler, connection);
\r
633 /* a gdb session just attached, put the target in halt mode */
\r
634 if (((retval = gdb_service->target->type->halt(gdb_service->target)) != ERROR_OK) &&
\r
635 (retval != ERROR_TARGET_ALREADY_HALTED))
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637 ERROR("error(%d) when trying to halt target, falling back to \"reset halt\"", retval);
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638 command_run_line(connection->cmd_ctx, "reset halt");
\r
641 /* This will time out after 1 second */
\r
642 command_run_line(connection->cmd_ctx, "wait_halt 1");
\r
644 /* remove the initial ACK from the incoming buffer */
\r
645 if ((retval = gdb_get_char(connection, &initial_ack)) != ERROR_OK)
\r
648 if (initial_ack != '+')
\r
649 gdb_putback_char(connection, initial_ack);
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654 int gdb_connection_closed(connection_t *connection)
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656 gdb_service_t *gdb_service = connection->service->priv;
\r
657 gdb_connection_t *gdb_connection = connection->priv;
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659 /* see if an image built with vFlash commands is left */
\r
660 if (gdb_connection->vflash_image)
\r
662 image_close(gdb_connection->vflash_image);
\r
663 free(gdb_connection->vflash_image);
\r
664 gdb_connection->vflash_image = NULL;
\r
667 /* if this connection registered a debug-message receiver delete it */
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668 delete_debug_msg_receiver(connection->cmd_ctx, gdb_service->target);
\r
670 if (connection->priv)
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672 free(connection->priv);
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673 connection->priv = NULL;
\r
677 ERROR("BUG: connection->priv == NULL");
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680 target_unregister_event_callback(gdb_target_callback_event_handler, connection);
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681 log_remove_callback(gdb_log_callback, connection);
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686 void gdb_send_error(connection_t *connection, u8 the_error)
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689 snprintf(err, 4, "E%2.2X", the_error );
\r
690 gdb_put_packet(connection, err, 3);
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693 int gdb_last_signal_packet(connection_t *connection, target_t *target, char* packet, int packet_size)
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698 signal = gdb_last_signal(target);
\r
700 snprintf(sig_reply, 4, "S%2.2x", signal);
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701 gdb_put_packet(connection, sig_reply, 3);
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706 /* Convert register to string of bits. NB! The # of bits in the
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707 * register might be non-divisible by 8(a byte), in which
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708 * case an entire byte is shown. */
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709 void gdb_str_to_target(target_t *target, char *tstr, reg_t *reg)
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716 buf_len = CEIL(reg->size, 8);
\r
718 if (target->endianness == TARGET_LITTLE_ENDIAN)
\r
720 for (i = 0; i < buf_len; i++)
\r
722 tstr[i*2] = DIGITS[(buf[i]>>4) & 0xf];
\r
723 tstr[i*2+1] = DIGITS[buf[i]&0xf];
\r
728 for (i = 0; i < buf_len; i++)
\r
730 tstr[(buf_len-1-i)*2] = DIGITS[(buf[i]>>4)&0xf];
\r
731 tstr[(buf_len-1-i)*2+1] = DIGITS[buf[i]&0xf];
\r
736 void gdb_target_to_str(target_t *target, char *tstr, char *str)
\r
738 int str_len = strlen(tstr);
\r
743 ERROR("BUG: gdb value with uneven number of characters encountered");
\r
747 if (target->endianness == TARGET_LITTLE_ENDIAN)
\r
749 for (i = 0; i < str_len; i+=2)
\r
751 str[str_len - i - 1] = tstr[i + 1];
\r
752 str[str_len - i - 2] = tstr[i];
\r
757 for (i = 0; i < str_len; i++)
\r
764 int gdb_get_registers_packet(connection_t *connection, target_t *target, char* packet, int packet_size)
\r
769 int reg_packet_size = 0;
\r
771 char *reg_packet_p;
\r
774 #ifdef _DEBUG_GDB_IO_
\r
778 if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
\r
782 case ERROR_TARGET_NOT_HALTED:
\r
783 ERROR("gdb requested registers but we're not halted, dropping connection");
\r
784 return ERROR_SERVER_REMOTE_CLOSED;
\r
786 /* this is a bug condition - get_gdb_reg_list() may not return any other error */
\r
787 ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
\r
792 for (i = 0; i < reg_list_size; i++)
\r
794 reg_packet_size += reg_list[i]->size;
\r
797 reg_packet = malloc(CEIL(reg_packet_size, 8) * 2);
\r
798 reg_packet_p = reg_packet;
\r
800 for (i = 0; i < reg_list_size; i++)
\r
802 gdb_str_to_target(target, reg_packet_p, reg_list[i]);
\r
803 reg_packet_p += CEIL(reg_list[i]->size, 8) * 2;
\r
806 #ifdef _DEBUG_GDB_IO_
\r
808 char *reg_packet_p;
\r
809 reg_packet_p = strndup(reg_packet, CEIL(reg_packet_size, 8) * 2);
\r
810 DEBUG("reg_packet: %s", reg_packet_p);
\r
811 free(reg_packet_p);
\r
815 gdb_put_packet(connection, reg_packet, CEIL(reg_packet_size, 8) * 2);
\r
823 int gdb_set_registers_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
831 #ifdef _DEBUG_GDB_IO_
\r
835 /* skip command character */
\r
839 if (packet_size % 2)
\r
841 WARNING("GDB set_registers packet with uneven characters received, dropping connection");
\r
842 return ERROR_SERVER_REMOTE_CLOSED;
\r
845 if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
\r
849 case ERROR_TARGET_NOT_HALTED:
\r
850 ERROR("gdb tried to registers but we're not halted, dropping connection");
\r
851 return ERROR_SERVER_REMOTE_CLOSED;
\r
853 /* this is a bug condition - get_gdb_reg_list() may not return any other error */
\r
854 ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
\r
860 for (i = 0; i < reg_list_size; i++)
\r
864 reg_arch_type_t *arch_type;
\r
866 /* convert from GDB-string (target-endian) to hex-string (big-endian) */
\r
867 hex_buf = malloc(CEIL(reg_list[i]->size, 8) * 2);
\r
868 gdb_target_to_str(target, packet_p, hex_buf);
\r
870 /* convert hex-string to binary buffer */
\r
871 bin_buf = malloc(CEIL(reg_list[i]->size, 8));
\r
872 str_to_buf(hex_buf, CEIL(reg_list[i]->size, 8) * 2, bin_buf, reg_list[i]->size, 16);
\r
874 /* get register arch_type, and call set method */
\r
875 arch_type = register_get_arch_type(reg_list[i]->arch_type);
\r
876 if (arch_type == NULL)
\r
878 ERROR("BUG: encountered unregistered arch type");
\r
881 arch_type->set(reg_list[i], bin_buf);
\r
883 /* advance packet pointer */
\r
884 packet_p += (CEIL(reg_list[i]->size, 8) * 2);
\r
890 /* free reg_t *reg_list[] array allocated by get_gdb_reg_list */
\r
893 gdb_put_packet(connection, "OK", 2);
\r
898 int gdb_get_register_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
901 int reg_num = strtoul(packet + 1, NULL, 16);
\r
906 #ifdef _DEBUG_GDB_IO_
\r
910 if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
\r
914 case ERROR_TARGET_NOT_HALTED:
\r
915 ERROR("gdb requested registers but we're not halted, dropping connection");
\r
916 return ERROR_SERVER_REMOTE_CLOSED;
\r
918 /* this is a bug condition - get_gdb_reg_list() may not return any other error */
\r
919 ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
\r
924 if (reg_list_size <= reg_num)
\r
926 ERROR("gdb requested a non-existing register");
\r
930 reg_packet = malloc(CEIL(reg_list[reg_num]->size, 8) * 2);
\r
932 gdb_str_to_target(target, reg_packet, reg_list[reg_num]);
\r
934 gdb_put_packet(connection, reg_packet, CEIL(reg_list[reg_num]->size, 8) * 2);
\r
942 int gdb_set_register_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
947 int reg_num = strtoul(packet + 1, &separator, 16);
\r
951 reg_arch_type_t *arch_type;
\r
955 if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
\r
959 case ERROR_TARGET_NOT_HALTED:
\r
960 ERROR("gdb tried to set a register but we're not halted, dropping connection");
\r
961 return ERROR_SERVER_REMOTE_CLOSED;
\r
963 /* this is a bug condition - get_gdb_reg_list() may not return any other error */
\r
964 ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
\r
969 if (reg_list_size < reg_num)
\r
971 ERROR("gdb requested a non-existing register");
\r
972 return ERROR_SERVER_REMOTE_CLOSED;
\r
975 if (*separator != '=')
\r
977 ERROR("GDB 'set register packet', but no '=' following the register number");
\r
978 return ERROR_SERVER_REMOTE_CLOSED;
\r
981 /* convert from GDB-string (target-endian) to hex-string (big-endian) */
\r
982 hex_buf = malloc(CEIL(reg_list[reg_num]->size, 8) * 2);
\r
983 gdb_target_to_str(target, separator + 1, hex_buf);
\r
985 /* convert hex-string to binary buffer */
\r
986 bin_buf = malloc(CEIL(reg_list[reg_num]->size, 8));
\r
987 str_to_buf(hex_buf, CEIL(reg_list[reg_num]->size, 8) * 2, bin_buf, reg_list[reg_num]->size, 16);
\r
989 /* get register arch_type, and call set method */
\r
990 arch_type = register_get_arch_type(reg_list[reg_num]->arch_type);
\r
991 if (arch_type == NULL)
\r
993 ERROR("BUG: encountered unregistered arch type");
\r
996 arch_type->set(reg_list[reg_num], bin_buf);
\r
998 gdb_put_packet(connection, "OK", 2);
\r
1007 int gdb_memory_packet_error(connection_t *connection, int retval)
\r
1011 case ERROR_TARGET_NOT_HALTED:
\r
1012 ERROR("gdb tried to read memory but we're not halted, dropping connection");
\r
1013 return ERROR_SERVER_REMOTE_CLOSED;
\r
1014 case ERROR_TARGET_DATA_ABORT:
\r
1015 gdb_send_error(connection, EIO);
\r
1017 case ERROR_TARGET_TRANSLATION_FAULT:
\r
1018 gdb_send_error(connection, EFAULT);
\r
1020 case ERROR_TARGET_UNALIGNED_ACCESS:
\r
1021 gdb_send_error(connection, EFAULT);
\r
1024 /* This could be that the target reset itself. */
\r
1025 ERROR("unexpected error %i. Dropping connection.", retval);
\r
1026 return ERROR_SERVER_REMOTE_CLOSED;
\r
1032 /* We don't have to worry about the default 2 second timeout for GDB packets,
\r
1033 * because GDB breaks up large memory reads into smaller reads.
\r
1035 * 8191 bytes by the looks of it. Why 8191 bytes instead of 8192?????
\r
1037 int gdb_read_memory_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
1046 int retval = ERROR_OK;
\r
1048 /* skip command character */
\r
1051 addr = strtoul(packet, &separator, 16);
\r
1053 if (*separator != ',')
\r
1055 ERROR("incomplete read memory packet received, dropping connection");
\r
1056 return ERROR_SERVER_REMOTE_CLOSED;
\r
1059 len = strtoul(separator+1, NULL, 16);
\r
1061 buffer = malloc(len);
\r
1063 DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
\r
1065 retval = target_read_buffer(target, addr, len, buffer);
\r
1067 if ((retval == ERROR_TARGET_DATA_ABORT) && (!gdb_report_data_abort))
\r
1069 /* TODO : Here we have to lie and send back all zero's lest stack traces won't work.
\r
1070 * At some point this might be fixed in GDB, in which case this code can be removed.
\r
1072 * OpenOCD developers are acutely aware of this problem, but there is nothing
\r
1073 * gained by involving the user in this problem that hopefully will get resolved
\r
1076 * http://sourceware.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=2395
\r
1078 * For now, the default is to fix up things to make current GDB versions work.
\r
1079 * This can be overwritten using the gdb_report_data_abort <'enable'|'disable'> command.
\r
1081 memset(buffer, 0, len);
\r
1082 retval = ERROR_OK;
\r
1085 if (retval == ERROR_OK)
\r
1087 hex_buffer = malloc(len * 2 + 1);
\r
1090 for (i = 0; i < len; i++)
\r
1093 hex_buffer[2 * i] = DIGITS[(t >> 4) & 0xf];
\r
1094 hex_buffer[2 * i + 1] = DIGITS[t & 0xf];
\r
1097 gdb_put_packet(connection, hex_buffer, len * 2);
\r
1103 retval = gdb_memory_packet_error(connection, retval);
\r
1111 int gdb_write_memory_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
1122 /* skip command character */
\r
1125 addr = strtoul(packet, &separator, 16);
\r
1127 if (*separator != ',')
\r
1129 ERROR("incomplete write memory packet received, dropping connection");
\r
1130 return ERROR_SERVER_REMOTE_CLOSED;
\r
1133 len = strtoul(separator+1, &separator, 16);
\r
1135 if (*(separator++) != ':')
\r
1137 ERROR("incomplete write memory packet received, dropping connection");
\r
1138 return ERROR_SERVER_REMOTE_CLOSED;
\r
1141 buffer = malloc(len);
\r
1143 DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
\r
1145 for (i=0; i<len; i++)
\r
1148 sscanf(separator + 2*i, "%2x", &tmp);
\r
1152 retval = target_write_buffer(target, addr, len, buffer);
\r
1154 if (retval == ERROR_OK)
\r
1156 gdb_put_packet(connection, "OK", 2);
\r
1160 if ((retval = gdb_memory_packet_error(connection, retval)) != ERROR_OK)
\r
1169 int gdb_write_memory_binary_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
1177 /* skip command character */
\r
1180 addr = strtoul(packet, &separator, 16);
\r
1182 if (*separator != ',')
\r
1184 ERROR("incomplete write memory binary packet received, dropping connection");
\r
1185 return ERROR_SERVER_REMOTE_CLOSED;
\r
1188 len = strtoul(separator+1, &separator, 16);
\r
1190 if (*(separator++) != ':')
\r
1192 ERROR("incomplete write memory binary packet received, dropping connection");
\r
1193 return ERROR_SERVER_REMOTE_CLOSED;
\r
1196 retval = ERROR_OK;
\r
1199 DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
\r
1201 retval = target_write_buffer(target, addr, len, (u8*)separator);
\r
1204 if (retval == ERROR_OK)
\r
1206 gdb_put_packet(connection, "OK", 2);
\r
1210 if ((retval = gdb_memory_packet_error(connection, retval)) != ERROR_OK)
\r
1217 void gdb_step_continue_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
1220 u32 address = 0x0;
\r
1224 if (packet_size > 1)
\r
1226 packet[packet_size] = 0;
\r
1227 address = strtoul(packet + 1, NULL, 16);
\r
1234 if (packet[0] == 'c')
\r
1236 DEBUG("continue");
\r
1237 target->type->resume(target, current, address, 0, 0); /* resume at current address, don't handle breakpoints, not debugging */
\r
1239 else if (packet[0] == 's')
\r
1242 target->type->step(target, current, address, 0); /* step at current or address, don't handle breakpoints */
\r
1246 int gdb_bp_wp_packet_error(connection_t *connection, int retval)
\r
1250 case ERROR_TARGET_NOT_HALTED:
\r
1251 ERROR("gdb tried to set a breakpoint but we're not halted, dropping connection");
\r
1252 return ERROR_SERVER_REMOTE_CLOSED;
\r
1254 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
\r
1255 gdb_send_error(connection, EBUSY);
\r
1258 ERROR("BUG: unexpected error %i", retval);
\r
1265 int gdb_breakpoint_watchpoint_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
1268 enum breakpoint_type bp_type = BKPT_SOFT /* dummy init to avoid warning */;
\r
1269 enum watchpoint_rw wp_type;
\r
1277 type = strtoul(packet + 1, &separator, 16);
\r
1279 if (type == 0) /* memory breakpoint */
\r
1280 bp_type = BKPT_SOFT;
\r
1281 else if (type == 1) /* hardware breakpoint */
\r
1282 bp_type = BKPT_HARD;
\r
1283 else if (type == 2) /* write watchpoint */
\r
1284 wp_type = WPT_WRITE;
\r
1285 else if (type == 3) /* read watchpoint */
\r
1286 wp_type = WPT_READ;
\r
1287 else if (type == 4) /* access watchpoint */
\r
1288 wp_type = WPT_ACCESS;
\r
1290 if (*separator != ',')
\r
1292 ERROR("incomplete breakpoint/watchpoint packet received, dropping connection");
\r
1293 return ERROR_SERVER_REMOTE_CLOSED;
\r
1296 address = strtoul(separator+1, &separator, 16);
\r
1298 if (*separator != ',')
\r
1300 ERROR("incomplete breakpoint/watchpoint packet received, dropping connection");
\r
1301 return ERROR_SERVER_REMOTE_CLOSED;
\r
1304 size = strtoul(separator+1, &separator, 16);
\r
1310 if (packet[0] == 'Z')
\r
1312 if ((retval = breakpoint_add(target, address, size, bp_type)) != ERROR_OK)
\r
1314 if ((retval = gdb_bp_wp_packet_error(connection, retval)) != ERROR_OK)
\r
1319 gdb_put_packet(connection, "OK", 2);
\r
1324 breakpoint_remove(target, address);
\r
1325 gdb_put_packet(connection, "OK", 2);
\r
1332 if (packet[0] == 'Z')
\r
1334 if ((retval = watchpoint_add(target, address, size, type-2, 0, 0xffffffffu)) != ERROR_OK)
\r
1336 if ((retval = gdb_bp_wp_packet_error(connection, retval)) != ERROR_OK)
\r
1341 gdb_put_packet(connection, "OK", 2);
\r
1346 watchpoint_remove(target, address);
\r
1347 gdb_put_packet(connection, "OK", 2);
\r
1358 /* print out a string and allocate more space as needed, mainly used for XML at this point */
\r
1359 void xml_printf(int *retval, char **xml, int *pos, int *size, const char *fmt, ...)
\r
1361 if (*retval != ERROR_OK)
\r
1369 if ((*xml == NULL) || (!first))
\r
1371 /* start by 0 to exercise all the code paths.
\r
1372 * Need minimum 2 bytes to fit 1 char and 0 terminator. */
\r
1374 *size = *size * 2 + 2;
\r
1376 *xml = realloc(*xml, *size);
\r
1381 *retval = ERROR_SERVER_REMOTE_CLOSED;
\r
1388 va_start(ap, fmt);
\r
1389 ret = vsnprintf(*xml + *pos, *size - *pos, fmt, ap);
\r
1391 if ((ret > 0) && ((ret + 1) < *size - *pos))
\r
1396 /* there was just enough or not enough space, allocate more. */
\r
1401 static int decode_xfer_read(char *buf, char **annex, int *ofs, unsigned int *len)
\r
1405 /* Extract and NUL-terminate the annex. */
\r
1407 while (*buf && *buf != ':')
\r
1413 /* After the read marker and annex, qXfer looks like a
\r
1414 * traditional 'm' packet. */
\r
1416 *ofs = strtoul(buf, &separator, 16);
\r
1418 if (*separator != ',')
\r
1421 *len = strtoul(separator+1, NULL, 16);
\r
1426 int gdb_calc_blocksize(flash_bank_t *bank)
\r
1429 int block_size = 0xffffffff;
\r
1431 /* loop through all sectors and return smallest sector size */
\r
1433 for (i = 0; i < bank->num_sectors; i++)
\r
1435 if (bank->sectors[i].size < block_size)
\r
1436 block_size = bank->sectors[i].size;
\r
1439 return block_size;
\r
1442 int gdb_query_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
1444 command_context_t *cmd_ctx = connection->cmd_ctx;
\r
1446 if (strstr(packet, "qRcmd,"))
\r
1448 if (packet_size > 6)
\r
1452 cmd = malloc((packet_size - 6)/2 + 1);
\r
1453 for (i=0; i < (packet_size - 6)/2; i++)
\r
1456 sscanf(packet + 6 + 2*i, "%2x", &tmp);
\r
1459 cmd[(packet_size - 6)/2] = 0x0;
\r
1461 /* We want to print all debug output to GDB connection */
\r
1462 log_add_callback(gdb_log_callback, connection);
\r
1463 target_call_timer_callbacks();
\r
1464 command_run_line(cmd_ctx, cmd);
\r
1467 gdb_put_packet(connection, "OK", 2);
\r
1470 else if (strstr(packet, "qCRC:"))
\r
1472 if (packet_size > 5)
\r
1475 char gdb_reply[10];
\r
1481 /* skip command character */
\r
1484 addr = strtoul(packet, &separator, 16);
\r
1486 if (*separator != ',')
\r
1488 ERROR("incomplete read memory packet received, dropping connection");
\r
1489 return ERROR_SERVER_REMOTE_CLOSED;
\r
1492 len = strtoul(separator + 1, NULL, 16);
\r
1494 retval = target_checksum_memory(target, addr, len, &checksum);
\r
1496 if (retval == ERROR_OK)
\r
1498 snprintf(gdb_reply, 10, "C%8.8x", checksum);
\r
1499 gdb_put_packet(connection, gdb_reply, 9);
\r
1503 if ((retval = gdb_memory_packet_error(connection, retval)) != ERROR_OK)
\r
1510 else if (strstr(packet, "qSupported"))
\r
1512 /* we currently support packet size and qXfer:memory-map:read (if enabled)
\r
1513 * disable qXfer:features:read for the moment */
\r
1514 int retval = ERROR_OK;
\r
1515 char *buffer = NULL;
\r
1519 xml_printf(&retval, &buffer, &pos, &size,
\r
1520 "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-",
\r
1521 (GDB_BUFFER_SIZE - 1), gdb_use_memory_map == 1 ? '+' : '-');
\r
1523 if (retval != ERROR_OK)
\r
1525 gdb_send_error(connection, 01);
\r
1529 gdb_put_packet(connection, buffer, strlen(buffer));
\r
1534 else if (strstr(packet, "qXfer:memory-map:read::"))
\r
1536 /* We get away with only specifying flash here. Regions that are not
\r
1537 * specified are treated as if we provided no memory map(if not we
\r
1538 * could detect the holes and mark them as RAM).
\r
1539 * Normally we only execute this code once, but no big deal if we
\r
1540 * have to regenerate it a couple of times. */
\r
1546 int retval = ERROR_OK;
\r
1553 /* skip command character */
\r
1556 offset = strtoul(packet, &separator, 16);
\r
1557 length = strtoul(separator + 1, &separator, 16);
\r
1559 xml_printf(&retval, &xml, &pos, &size, "<memory-map>\n");
\r
1564 p = get_flash_bank_by_num(i);
\r
1568 /* if device has uneven sector sizes, eg. str7, lpc
\r
1569 * we pass the smallest sector size to gdb memory map */
\r
1570 blocksize = gdb_calc_blocksize(p);
\r
1572 xml_printf(&retval, &xml, &pos, &size, "<memory type=\"flash\" start=\"0x%x\" length=\"0x%x\">\n" \
\r
1573 "<property name=\"blocksize\">0x%x</property>\n" \
\r
1575 p->base, p->size, blocksize);
\r
1579 xml_printf(&retval, &xml, &pos, &size, "</memory-map>\n");
\r
1581 if (retval != ERROR_OK)
\r
1583 gdb_send_error(connection, retval);
\r
1587 if (offset + length > pos)
\r
1589 length = pos - offset;
\r
1592 char *t = malloc(length + 1);
\r
1594 memcpy(t + 1, xml + offset, length);
\r
1595 gdb_put_packet(connection, t, length + 1);
\r
1601 else if (strstr(packet, "qXfer:features:read:"))
\r
1606 int retval = ERROR_OK;
\r
1609 unsigned int length;
\r
1612 /* skip command character */
\r
1615 if (decode_xfer_read(packet, &annex, &offset, &length) < 0)
\r
1617 gdb_send_error(connection, 01);
\r
1621 if (strcmp(annex, "target.xml") != 0)
\r
1623 gdb_send_error(connection, 01);
\r
1627 xml_printf(&retval, &xml, &pos, &size, \
\r
1628 "l<target version=\"1.0\">\n<architecture>arm</architecture>\n</target>\n");
\r
1630 if (retval != ERROR_OK)
\r
1632 gdb_send_error(connection, retval);
\r
1636 gdb_put_packet(connection, xml, strlen(xml) + 1);
\r
1642 gdb_put_packet(connection, "", 0);
\r
1646 int gdb_v_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
\r
1648 gdb_connection_t *gdb_connection = connection->priv;
\r
1649 gdb_service_t *gdb_service = connection->service->priv;
\r
1652 /* if flash programming disabled - send a empty reply */
\r
1654 if (gdb_flash_program == 0)
\r
1656 gdb_put_packet(connection, "", 0);
\r
1660 if (strstr(packet, "vFlashErase:"))
\r
1662 unsigned long addr;
\r
1663 unsigned long length;
\r
1665 char *parse = packet + 12;
\r
1666 if (*parse == '\0')
\r
1668 ERROR("incomplete vFlashErase packet received, dropping connection");
\r
1669 return ERROR_SERVER_REMOTE_CLOSED;
\r
1672 addr = strtoul(parse, &parse, 16);
\r
1674 if (*(parse++) != ',' || *parse == '\0')
\r
1676 ERROR("incomplete vFlashErase packet received, dropping connection");
\r
1677 return ERROR_SERVER_REMOTE_CLOSED;
\r
1680 length = strtoul(parse, &parse, 16);
\r
1682 if (*parse != '\0')
\r
1684 ERROR("incomplete vFlashErase packet received, dropping connection");
\r
1685 return ERROR_SERVER_REMOTE_CLOSED;
\r
1688 /* assume all sectors need erasing - stops any problems
\r
1689 * when flash_write is called multiple times */
\r
1690 flash_set_dirty();
\r
1692 /* perform any target specific operations before the erase */
\r
1693 target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_PROGRAM);
\r
1695 /* perform erase */
\r
1696 if ((result = flash_erase_address_range(gdb_service->target, addr, length)) != ERROR_OK)
\r
1698 /* GDB doesn't evaluate the actual error number returned,
\r
1699 * treat a failed erase as an I/O error
\r
1701 gdb_send_error(connection, EIO);
\r
1702 ERROR("flash_erase returned %i", result);
\r
1705 gdb_put_packet(connection, "OK", 2);
\r
1710 if (strstr(packet, "vFlashWrite:"))
\r
1712 unsigned long addr;
\r
1713 unsigned long length;
\r
1714 char *parse = packet + 12;
\r
1716 if (*parse == '\0')
\r
1718 ERROR("incomplete vFlashErase packet received, dropping connection");
\r
1719 return ERROR_SERVER_REMOTE_CLOSED;
\r
1721 addr = strtoul(parse, &parse, 16);
\r
1722 if (*(parse++) != ':')
\r
1724 ERROR("incomplete vFlashErase packet received, dropping connection");
\r
1725 return ERROR_SERVER_REMOTE_CLOSED;
\r
1727 length = packet_size - (parse - packet);
\r
1729 /* create a new image if there isn't already one */
\r
1730 if (gdb_connection->vflash_image == NULL)
\r
1732 gdb_connection->vflash_image = malloc(sizeof(image_t));
\r
1733 image_open(gdb_connection->vflash_image, "", "build");
\r
1736 /* create new section with content from packet buffer */
\r
1737 image_add_section(gdb_connection->vflash_image, addr, length, 0x0, (u8*)parse);
\r
1739 gdb_put_packet(connection, "OK", 2);
\r
1744 if (!strcmp(packet, "vFlashDone"))
\r
1748 /* process the flashing buffer. No need to erase as GDB
\r
1749 * always issues a vFlashErase first. */
\r
1750 if ((result = flash_write(gdb_service->target, gdb_connection->vflash_image, &written, 0)) != ERROR_OK)
\r
1752 if (result == ERROR_FLASH_DST_OUT_OF_BANK)
\r
1753 gdb_put_packet(connection, "E.memtype", 9);
\r
1755 gdb_send_error(connection, EIO);
\r
1759 DEBUG("wrote %u bytes from vFlash image to flash", written);
\r
1760 gdb_put_packet(connection, "OK", 2);
\r
1763 image_close(gdb_connection->vflash_image);
\r
1764 free(gdb_connection->vflash_image);
\r
1765 gdb_connection->vflash_image = NULL;
\r
1770 gdb_put_packet(connection, "", 0);
\r
1774 int gdb_detach(connection_t *connection, target_t *target)
\r
1776 switch( detach_mode )
\r
1778 case GDB_DETACH_RESUME:
\r
1779 target->type->resume(target, 1, 0, 1, 0);
\r
1782 case GDB_DETACH_RESET:
\r
1783 target_process_reset(connection->cmd_ctx);
\r
1786 case GDB_DETACH_HALT:
\r
1787 target->type->halt(target);
\r
1790 case GDB_DETACH_NOTHING:
\r
1794 gdb_put_packet(connection, "OK", 2);
\r
1799 static void gdb_log_callback(void *priv, const char *file, int line,
\r
1800 const char *function, const char *format, va_list args)
\r
1802 connection_t *connection = priv;
\r
1803 gdb_connection_t *gdb_con = connection->priv;
\r
1805 if (gdb_con->busy)
\r
1807 /* do not reply this using the O packet */
\r
1811 char *t = alloc_printf(format, args);
\r
1815 gdb_output_con(connection, t);
\r
1820 int gdb_input_inner(connection_t *connection)
\r
1822 gdb_service_t *gdb_service = connection->service->priv;
\r
1823 target_t *target = gdb_service->target;
\r
1824 char packet[GDB_BUFFER_SIZE];
\r
1827 gdb_connection_t *gdb_con = connection->priv;
\r
1828 static int extended_protocol = 0;
\r
1830 /* drain input buffer */
\r
1833 packet_size = GDB_BUFFER_SIZE-1;
\r
1834 if ((retval = gdb_get_packet(connection, packet, &packet_size)) != ERROR_OK)
\r
1839 /* terminate with zero */
\r
1840 packet[packet_size] = 0;
\r
1842 DEBUG("received packet: '%s'", packet);
\r
1844 if (packet_size > 0)
\r
1846 retval = ERROR_OK;
\r
1847 switch (packet[0])
\r
1850 /* Hct... -- set thread
\r
1851 * we don't have threads, send empty reply */
\r
1852 gdb_put_packet(connection, NULL, 0);
\r
1855 retval = gdb_query_packet(connection, target, packet, packet_size);
\r
1858 retval = gdb_get_registers_packet(connection, target, packet, packet_size);
\r
1861 retval = gdb_set_registers_packet(connection, target, packet, packet_size);
\r
1864 retval = gdb_get_register_packet(connection, target, packet, packet_size);
\r
1867 retval = gdb_set_register_packet(connection, target, packet, packet_size);
\r
1870 retval = gdb_read_memory_packet(connection, target, packet, packet_size);
\r
1873 retval = gdb_write_memory_packet(connection, target, packet, packet_size);
\r
1877 retval = gdb_breakpoint_watchpoint_packet(connection, target, packet, packet_size);
\r
1880 gdb_last_signal_packet(connection, target, packet, packet_size);
\r
1885 /* We're running/stepping, in which case we can
\r
1886 * forward log output until the target is halted */
\r
1887 gdb_connection_t *gdb_con = connection->priv;
\r
1888 gdb_con->frontend_state = TARGET_RUNNING;
\r
1889 log_add_callback(gdb_log_callback, connection);
\r
1890 gdb_step_continue_packet(connection, target, packet, packet_size);
\r
1894 retval = gdb_v_packet(connection, target, packet, packet_size);
\r
1897 retval = gdb_detach(connection, target);
\r
1898 extended_protocol = 0;
\r
1901 if ((retval = gdb_write_memory_binary_packet(connection, target, packet, packet_size)) != ERROR_OK)
\r
1905 if (extended_protocol != 0)
\r
1907 gdb_put_packet(connection, "OK", 2);
\r
1908 return ERROR_SERVER_REMOTE_CLOSED;
\r
1910 /* handle extended remote protocol */
\r
1911 extended_protocol = 1;
\r
1912 gdb_put_packet(connection, "OK", 2);
\r
1915 /* handle extended restart packet */
\r
1916 target_process_reset(connection->cmd_ctx);
\r
1919 /* ignore unkown packets */
\r
1920 DEBUG("ignoring 0x%2.2x packet", packet[0]);
\r
1921 gdb_put_packet(connection, NULL, 0);
\r
1925 /* if a packet handler returned an error, exit input loop */
\r
1926 if (retval != ERROR_OK)
\r
1930 if (gdb_con->ctrl_c)
\r
1932 if (target->state == TARGET_RUNNING)
\r
1934 target->type->halt(target);
\r
1935 gdb_con->ctrl_c = 0;
\r
1939 } while (gdb_con->buf_cnt > 0);
\r
1944 int gdb_input(connection_t *connection)
\r
1946 int retval = gdb_input_inner(connection);
\r
1947 if (retval == ERROR_SERVER_REMOTE_CLOSED)
\r
1949 /* we'll recover from any other errors(e.g. temporary timeouts, etc.) */
\r
1955 gdb_service_t *gdb_service;
\r
1956 target_t *target = targets;
\r
1961 WARNING("no gdb ports allocated as no target has been specified");
\r
1965 if (gdb_port == 0)
\r
1967 WARNING("no gdb port specified, using default port 3333");
\r
1973 char service_name[8];
\r
1975 snprintf(service_name, 8, "gdb-%2.2i", i);
\r
1977 gdb_service = malloc(sizeof(gdb_service_t));
\r
1978 gdb_service->target = target;
\r
1980 add_service("gdb", CONNECTION_GDB, gdb_port + i, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
\r
1982 DEBUG("gdb service for target %s at port %i", target->type->name, gdb_port + i);
\r
1985 target = target->next;
\r
1991 /* daemon configuration command gdb_port */
\r
1992 int handle_gdb_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
\r
1997 /* only if the port wasn't overwritten by cmdline */
\r
1998 if (gdb_port == 0)
\r
1999 gdb_port = strtoul(args[0], NULL, 0);
\r
2004 int handle_gdb_detach_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
\r
2008 if (strcmp(args[0], "resume") == 0)
\r
2010 detach_mode = GDB_DETACH_RESUME;
\r
2013 else if (strcmp(args[0], "reset") == 0)
\r
2015 detach_mode = GDB_DETACH_RESET;
\r
2018 else if (strcmp(args[0], "halt") == 0)
\r
2020 detach_mode = GDB_DETACH_HALT;
\r
2023 else if (strcmp(args[0], "nothing") == 0)
\r
2025 detach_mode = GDB_DETACH_NOTHING;
\r
2030 WARNING("invalid gdb_detach configuration directive: %s", args[0]);
\r
2034 int handle_gdb_memory_map_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
\r
2038 if (strcmp(args[0], "enable") == 0)
\r
2040 gdb_use_memory_map = 1;
\r
2043 else if (strcmp(args[0], "disable") == 0)
\r
2045 gdb_use_memory_map = 0;
\r
2050 WARNING("invalid gdb_memory_map configuration directive: %s", args[0]);
\r
2054 int handle_gdb_flash_program_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
\r
2058 if (strcmp(args[0], "enable") == 0)
\r
2060 gdb_flash_program = 1;
\r
2063 else if (strcmp(args[0], "disable") == 0)
\r
2065 gdb_flash_program = 0;
\r
2070 WARNING("invalid gdb_memory_map configuration directive: %s", args[0]);
\r
2074 int handle_gdb_report_data_abort_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
\r
2078 if (strcmp(args[0], "enable") == 0)
\r
2080 gdb_report_data_abort = 1;
\r
2083 else if (strcmp(args[0], "disable") == 0)
\r
2085 gdb_report_data_abort = 0;
\r
2090 WARNING("invalid gdb_report_data_abort configuration directive: %s", args[0]);
\r
2094 int gdb_register_commands(command_context_t *command_context)
\r
2096 register_command(command_context, NULL, "gdb_port", handle_gdb_port_command,
\r
2097 COMMAND_CONFIG, "");
\r
2098 register_command(command_context, NULL, "gdb_detach", handle_gdb_detach_command,
\r
2099 COMMAND_CONFIG, "");
\r
2100 register_command(command_context, NULL, "gdb_memory_map", handle_gdb_memory_map_command,
\r
2101 COMMAND_CONFIG, "");
\r
2102 register_command(command_context, NULL, "gdb_flash_program", handle_gdb_flash_program_command,
\r
2103 COMMAND_CONFIG, "");
\r
2104 register_command(command_context, NULL, "gdb_report_data_abort", handle_gdb_report_data_abort_command,
\r
2105 COMMAND_CONFIG, "");
\r