* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
#include "config.h"
#endif
-#include "replacements.h"
-
#include "gdb_server.h"
-
+#include "target_request.h"
+#include "register.h"
#include "server.h"
-#include "log.h"
-#include "binarybuffer.h"
-#include "jtag.h"
-#include "breakpoints.h"
#include "flash.h"
-#include "target_request.h"
-#include "configuration.h"
+#include "image.h"
+#include "jtag.h"
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <stdlib.h>
#if 0
#define _DEBUG_GDB_IO_
#endif
-static unsigned short gdb_port;
+static int gdb_breakpoint_override;
+static enum breakpoint_type gdb_breakpoint_override_type;
+
+extern int gdb_error(connection_t *connection, int retval);
+static unsigned short gdb_port = 3333;
static const char *DIGITS = "0123456789abcdef";
-static void gdb_log_callback(void *priv, const char *file, int line,
- const char *function, const char *format, va_list args);
+static void gdb_log_callback(void *priv, const char *file, int line,
+ const char *function, const char *string);
enum gdb_detach_mode
{
/* target behaviour on gdb detach */
enum gdb_detach_mode detach_mode = GDB_DETACH_RESUME;
+/* number of gdb connections, mainly to supress gdb related debugging spam
+ * in helper/log.c when no gdb connections are actually active */
+int gdb_actual_connections;
+
/* set if we are sending a memory map to gdb
* via qXfer:memory-map:read packet */
-int gdb_use_memory_map = 0;
-int gdb_flash_program = 0;
+/* enabled by default*/
+int gdb_use_memory_map = 1;
+/* enabled by default*/
+int gdb_flash_program = 1;
/* if set, data aborts cause an error to be reported in memory read packets
* see the code in gdb_read_memory_packet() for further explanations */
case DBG_REASON_NOTHALTED:
return 0x0; /* no signal... shouldn't happen */
default:
- ERROR("BUG: undefined debug reason");
- exit(-1);
+ LOG_USER("undefined debug reason %d - target needs reset", target->debug_reason);
+ return 0x0;
}
}
+int check_pending(connection_t *connection, int timeout_s, int *got_data)
+{
+ /* a non-blocking socket will block if there is 0 bytes available on the socket,
+ * but return with as many bytes as are available immediately
+ */
+ struct timeval tv;
+ fd_set read_fds;
+ gdb_connection_t *gdb_con = connection->priv;
+ int t;
+ if (got_data==NULL)
+ got_data=&t;
+ *got_data=0;
+
+ if (gdb_con->buf_cnt>0)
+ {
+ *got_data = 1;
+ return ERROR_OK;
+ }
+
+ FD_ZERO(&read_fds);
+ FD_SET(connection->fd, &read_fds);
+
+ tv.tv_sec = timeout_s;
+ tv.tv_usec = 0;
+ if (socket_select(connection->fd + 1, &read_fds, NULL, NULL, &tv) == 0)
+ {
+ /* This can typically be because a "monitor" command took too long
+ * before printing any progress messages
+ */
+ if (timeout_s>0)
+ {
+ return ERROR_GDB_TIMEOUT;
+ } else
+ {
+ return ERROR_OK;
+ }
+ }
+ *got_data=FD_ISSET(connection->fd, &read_fds) != 0;
+ return ERROR_OK;
+}
+
int gdb_get_char(connection_t *connection, int* next_char)
{
gdb_connection_t *gdb_con = connection->priv;
+ int retval=ERROR_OK;
#ifdef _DEBUG_GDB_IO_
char *debug_buffer;
connection->input_pending = 0;
#ifdef _DEBUG_GDB_IO_
- DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
+ LOG_DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
#endif
return ERROR_OK;
for (;;)
{
-#ifndef _WIN32
- /* a non-blocking socket will block if there is 0 bytes available on the socket,
- * but return with as many bytes as are available immediately
- */
- struct timeval tv;
- fd_set read_fds;
-
- FD_ZERO(&read_fds);
- FD_SET(connection->fd, &read_fds);
-
- tv.tv_sec = 1;
- tv.tv_usec = 0;
- if (select(connection->fd + 1, &read_fds, NULL, NULL, &tv) == 0)
- {
- /* This can typically be because a "monitor" command took too long
- * before printing any progress messages
- */
- return ERROR_GDB_TIMEOUT;
+ if (connection->service->type == CONNECTION_PIPE)
+ {
+ gdb_con->buf_cnt = read(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
}
-#endif
- gdb_con->buf_cnt = read_socket(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
+ else
+ {
+ retval = check_pending(connection, 1, NULL);
+ if (retval != ERROR_OK)
+ return retval;
+ gdb_con->buf_cnt = read_socket(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
+ }
+
if (gdb_con->buf_cnt > 0)
{
break;
#ifdef _WIN32
errno = WSAGetLastError();
- switch(errno)
+ switch (errno)
{
case WSAEWOULDBLOCK:
usleep(1000);
break;
case WSAECONNABORTED:
+ gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
case WSAECONNRESET:
+ gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
default:
- ERROR("read: %d", errno);
+ LOG_ERROR("read: %d", errno);
exit(-1);
}
#else
- switch(errno)
+ switch (errno)
{
case EAGAIN:
usleep(1000);
break;
case ECONNABORTED:
+ gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
case ECONNRESET:
+ gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
default:
- ERROR("read: %s", strerror(errno));
+ LOG_ERROR("read: %s", strerror(errno));
+ gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
}
#endif
debug_buffer = malloc(gdb_con->buf_cnt + 1);
memcpy(debug_buffer, gdb_con->buffer, gdb_con->buf_cnt);
debug_buffer[gdb_con->buf_cnt] = 0;
- DEBUG("received '%s'", debug_buffer);
+ LOG_DEBUG("received '%s'", debug_buffer);
free(debug_buffer);
#endif
if (gdb_con->buf_cnt > 0)
connection->input_pending = 1;
else
- connection->input_pending = 0;
+ connection->input_pending = 0;
#ifdef _DEBUG_GDB_IO_
- DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
+ LOG_DEBUG("returned char '%c' (0x%2.2x)", *next_char, *next_char);
#endif
- return ERROR_OK;
+ return retval;
}
int gdb_putback_char(connection_t *connection, int last_char)
}
else
{
- ERROR("BUG: couldn't put character back");
+ LOG_ERROR("BUG: couldn't put character back");
}
return ERROR_OK;
if (gdb_con->closed)
return ERROR_SERVER_REMOTE_CLOSED;
- if (write_socket(connection->fd, data, len) == len)
+ if (connection->service->type == CONNECTION_PIPE)
{
- return ERROR_OK;
+ /* write to stdout */
+ if (write(STDOUT_FILENO, data, len) == len)
+ {
+ return ERROR_OK;
+ }
+ }
+ else
+ {
+ if (write_socket(connection->fd, data, len) == len)
+ {
+ return ERROR_OK;
+ }
}
gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
for (i = 0; i < len; i++)
my_checksum += buffer[i];
+#ifdef _DEBUG_GDB_IO_
+ /*
+ * At this point we should have nothing in the input queue from GDB,
+ * however sometimes '-' is sent even though we've already received
+ * an ACK (+) for everything we've sent off.
+ */
+ int gotdata;
+ for (;;)
+ {
+ if ((retval=check_pending(connection, 0, &gotdata)) != ERROR_OK)
+ return retval;
+ if (!gotdata)
+ break;
+ if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
+ return retval;
+ if ( reply == '$' ){
+ /* fix a problem with some IAR tools */
+ gdb_putback_char( connection, reply );
+ LOG_DEBUG("Unexpected start of new packet");
+ break;
+ }
+
+ LOG_WARNING("Discard unexpected char %c", reply);
+ }
+#endif
+
while (1)
{
#ifdef _DEBUG_GDB_IO_
debug_buffer = malloc(len + 1);
memcpy(debug_buffer, buffer, len);
debug_buffer[len] = 0;
- DEBUG("sending packet '$%s#%2.2x'", debug_buffer, my_checksum);
+ LOG_DEBUG("sending packet '$%s#%2.2x'", debug_buffer, my_checksum);
free(debug_buffer);
#endif
-#if 0
- char checksum[3];
- gdb_write(connection, "$", 1);
- if (len > 0)
- gdb_write(connection, buffer, len);
- gdb_write(connection, "#", 1);
-
- snprintf(checksum, 3, "%2.2x", my_checksum);
-
- gdb_write(connection, checksum, 2);
-#else
- void *allocated = NULL;
- char stackAlloc[1024];
- char *t = stackAlloc;
- int totalLen = 1 + len + 1 + 2;
- if (totalLen > sizeof(stackAlloc))
- {
- allocated = malloc(totalLen);
- t = allocated;
- if (allocated == NULL)
+
+ char local_buffer[1024];
+ local_buffer[0] = '$';
+ if ((size_t)len + 4 <= sizeof(local_buffer))
+ {
+ /* performance gain on smaller packets by only a single call to gdb_write() */
+ memcpy(local_buffer+1, buffer, len++);
+ local_buffer[len++] = '#';
+ local_buffer[len++] = DIGITS[(my_checksum >> 4) & 0xf];
+ local_buffer[len++] = DIGITS[my_checksum & 0xf];
+ if ((retval = gdb_write(connection, local_buffer, len)) != ERROR_OK)
{
- ERROR("Ran out of memory trying to reply packet %d\n", totalLen);
- exit(-1);
+ return retval;
}
}
- t[0] = '$';
- memcpy(t + 1, buffer, len);
- t[1 + len] = '#';
- t[1 + len + 1] = DIGITS[(my_checksum >> 4) & 0xf];
- t[1 + len + 2] = DIGITS[my_checksum & 0xf];
-
- gdb_write(connection, t, totalLen);
-
- if (allocated)
+ else
{
- free(allocated);
+ /* larger packets are transmitted directly from caller supplied buffer
+ by several calls to gdb_write() to avoid dynamic allocation */
+ local_buffer[1] = '#';
+ local_buffer[2] = DIGITS[(my_checksum >> 4) & 0xf];
+ local_buffer[3] = DIGITS[my_checksum & 0xf];
+ if ((retval = gdb_write(connection, local_buffer, 1)) != ERROR_OK)
+ {
+ return retval;
+ }
+ if ((retval = gdb_write(connection, buffer, len)) != ERROR_OK)
+ {
+ return retval;
+ }
+ if ((retval = gdb_write(connection, local_buffer+1, 3)) != ERROR_OK)
+ {
+ return retval;
+ }
}
-#endif
+
+ if (gdb_con->noack_mode)
+ break;
+
if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
return retval;
else if (reply == '-')
{
/* Stop sending output packets for now */
- log_setCallback(NULL, NULL);
- WARNING("negative reply, retrying");
+ log_remove_callback(gdb_log_callback, connection);
+ LOG_WARNING("negative reply, retrying");
}
else if (reply == 0x3)
{
else if (reply == '-')
{
/* Stop sending output packets for now */
- log_setCallback(NULL, NULL);
- WARNING("negative reply, retrying");
+ log_remove_callback(gdb_log_callback, connection);
+ LOG_WARNING("negative reply, retrying");
}
- else
- {
- ERROR("unknown character 0x%2.2x in reply, dropping connection", reply);
+ else if ( reply == '$' ){
+ LOG_ERROR("GDB missing ack(1) - assumed good");
+ gdb_putback_char( connection, reply );
+ return ERROR_OK;
+ } else {
+
+ LOG_ERROR("unknown character(1) 0x%2.2x in reply, dropping connection", reply);
+ gdb_con->closed=1;
return ERROR_SERVER_REMOTE_CLOSED;
}
}
+ else if ( reply == '$' ){
+ LOG_ERROR("GDB missing ack(2) - assumed good");
+ gdb_putback_char( connection, reply );
+ return ERROR_OK;
+ }
else
{
- ERROR("unknown character 0x%2.2x in reply, dropping connection", reply);
+ LOG_ERROR("unknown character(2) 0x%2.2x in reply, dropping connection", reply);
+ gdb_con->closed=1;
return ERROR_SERVER_REMOTE_CLOSED;
}
}
gdb_con->busy = 1;
int retval = gdb_put_packet_inner(connection, buffer, len);
gdb_con->busy = 0;
+
+ /* we sent some data, reset timer for keep alive messages */
+ kept_alive();
+
return retval;
}
-int gdb_get_packet_inner(connection_t *connection, char *buffer, int *len)
+static __inline__ int fetch_packet(connection_t *connection, int *checksum_ok, int noack, int *len, char *buffer)
{
+ unsigned char my_checksum = 0;
+ char checksum[3];
int character;
+ int retval;
+
+ gdb_connection_t *gdb_con = connection->priv;
+ my_checksum = 0;
int count = 0;
+ count = 0;
+ for (;;)
+ {
+ /* The common case is that we have an entire packet with no escape chars.
+ * We need to leave at least 2 bytes in the buffer to have
+ * gdb_get_char() update various bits and bobs correctly.
+ */
+ if ((gdb_con->buf_cnt > 2) && ((gdb_con->buf_cnt+count) < *len))
+ {
+ /* The compiler will struggle a bit with constant propagation and
+ * aliasing, so we help it by showing that these values do not
+ * change inside the loop
+ */
+ int i;
+ char *buf = gdb_con->buf_p;
+ int run = gdb_con->buf_cnt - 2;
+ i = 0;
+ int done = 0;
+ while (i < run)
+ {
+ character = *buf++;
+ i++;
+ if (character == '#')
+ {
+ /* Danger! character can be '#' when esc is
+ * used so we need an explicit boolean for done here.
+ */
+ done = 1;
+ break;
+ }
+
+ if (character == '}')
+ {
+ /* data transmitted in binary mode (X packet)
+ * uses 0x7d as escape character */
+ my_checksum += character & 0xff;
+ character = *buf++;
+ i++;
+ my_checksum += character & 0xff;
+ buffer[count++] = (character ^ 0x20) & 0xff;
+ }
+ else
+ {
+ my_checksum += character & 0xff;
+ buffer[count++] = character & 0xff;
+ }
+ }
+ gdb_con->buf_p += i;
+ gdb_con->buf_cnt -= i;
+ if (done)
+ break;
+ }
+ if (count > *len)
+ {
+ LOG_ERROR("packet buffer too small");
+ return ERROR_GDB_BUFFER_TOO_SMALL;
+ }
+
+ if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
+ return retval;
+
+ if (character == '#')
+ break;
+
+ if (character == '}')
+ {
+ /* data transmitted in binary mode (X packet)
+ * uses 0x7d as escape character */
+ my_checksum += character & 0xff;
+ if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
+ return retval;
+ my_checksum += character & 0xff;
+ buffer[count++] = (character ^ 0x20) & 0xff;
+ }
+ else
+ {
+ my_checksum += character & 0xff;
+ buffer[count++] = character & 0xff;
+ }
+ }
+
+ *len = count;
+
+ if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
+ return retval;
+ checksum[0] = character;
+ if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
+ return retval;
+ checksum[1] = character;
+ checksum[2] = 0;
+
+ if (!noack)
+ {
+ *checksum_ok=(my_checksum == strtoul(checksum, NULL, 16));
+ }
+
+ return ERROR_OK;
+}
+
+int gdb_get_packet_inner(connection_t *connection, char *buffer, int *len)
+{
+ int character;
int retval;
- char checksum[3];
- unsigned char my_checksum = 0;
gdb_connection_t *gdb_con = connection->priv;
while (1)
return retval;
#ifdef _DEBUG_GDB_IO_
- DEBUG("character: '%c'", character);
+ LOG_DEBUG("character: '%c'", character);
#endif
switch (character)
case '$':
break;
case '+':
- WARNING("acknowledgment received, but no packet pending");
+ /* gdb sends a dummy ack '+' at every remote connect - see remote_start_remote (remote.c)
+ * incase anyone tries to debug why they receive this warning every time */
+ LOG_WARNING("acknowledgment received, but no packet pending");
break;
case '-':
- WARNING("negative acknowledgment, but no packet pending");
+ LOG_WARNING("negative acknowledgment, but no packet pending");
break;
case 0x3:
gdb_con->ctrl_c = 1;
*len = 0;
return ERROR_OK;
default:
- WARNING("ignoring character 0x%x", character);
+ LOG_WARNING("ignoring character 0x%x", character);
break;
}
} while (character != '$');
- my_checksum = 0;
-
- count = 0;
- gdb_connection_t *gdb_con = connection->priv;
- for (;;)
- {
- /* The common case is that we have an entire packet with no escape chars.
- * We need to leave at least 2 bytes in the buffer to have
- * gdb_get_char() update various bits and bobs correctly.
- */
- if ((gdb_con->buf_cnt > 2) && ((gdb_con->buf_cnt+count) < *len))
- {
- /* The compiler will struggle a bit with constant propagation and
- * aliasing, so we help it by showing that these values do not
- * change inside the loop
- */
- int i;
- char *buf = gdb_con->buf_p;
- int run = gdb_con->buf_cnt - 2;
- i = 0;
- int done = 0;
- while (i < run)
- {
- character = *buf++;
- i++;
- if (character == '#')
- {
- /* Danger! character can be '#' when esc is
- * used so we need an explicit boolean for done here.
- */
- done = 1;
- break;
- }
-
- if (character == '}')
- {
- /* data transmitted in binary mode (X packet)
- * uses 0x7d as escape character */
- my_checksum += character & 0xff;
- character = *buf++;
- i++;
- my_checksum += character & 0xff;
- buffer[count++] = (character ^ 0x20) & 0xff;
- } else
- {
- my_checksum += character & 0xff;
- buffer[count++] = character & 0xff;
- }
- }
- gdb_con->buf_p += i;
- gdb_con->buf_cnt -= i;
- if (done)
- break;
- }
- if (count > *len)
- {
- ERROR("packet buffer too small");
- return ERROR_GDB_BUFFER_TOO_SMALL;
- }
-
- if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
- return retval;
- if (character == '#')
- break;
-
- if (character == '}')
- {
- /* data transmitted in binary mode (X packet)
- * uses 0x7d as escape character */
- my_checksum += character & 0xff;
- if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
- return retval;
- my_checksum += character & 0xff;
- buffer[count++] = (character ^ 0x20) & 0xff;
- }
- else
- {
- my_checksum += character & 0xff;
- buffer[count++] = character & 0xff;
- }
+ int checksum_ok = 0;
+ /* explicit code expansion here to get faster inlined code in -O3 by not
+ * calculating checksum
+ */
+ if (gdb_con->noack_mode)
+ {
+ if ((retval=fetch_packet(connection, &checksum_ok, 1, len, buffer)) != ERROR_OK)
+ return retval;
+ } else
+ {
+ if ((retval=fetch_packet(connection, &checksum_ok, 0, len, buffer)) != ERROR_OK)
+ return retval;
}
- *len = count;
-
- if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
- return retval;
- checksum[0] = character;
- if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
- return retval;
- checksum[1] = character;
- checksum[2] = 0;
-
- if (my_checksum == strtoul(checksum, NULL, 16))
+ if (gdb_con->noack_mode)
{
- gdb_write(connection, "+", 1);
+ /* checksum is not checked in noack mode */
+ break;
+ }
+ if (checksum_ok)
+ {
+ if ((retval = gdb_write(connection, "+", 1)) != ERROR_OK)
+ {
+ return retval;
+ }
break;
}
-
- WARNING("checksum error, requesting retransmission");
- gdb_write(connection, "-", 1);
}
if (gdb_con->closed)
return ERROR_SERVER_REMOTE_CLOSED;
gdb_con->busy = 0;
return retval;
}
-
-int gdb_output_con(connection_t *connection, char* line)
+
+int gdb_output_con(connection_t *connection, const char* line)
{
char *hex_buffer;
int i, bin_size;
bin_size = strlen(line);
- hex_buffer = malloc(bin_size*2 + 4);
+ hex_buffer = malloc(bin_size*2 + 2);
+ if (hex_buffer == NULL)
+ return ERROR_GDB_BUFFER_TOO_SMALL;
hex_buffer[0] = 'O';
for (i=0; i<bin_size; i++)
snprintf(hex_buffer + 1 + i*2, 3, "%2.2x", line[i]);
- hex_buffer[bin_size*2+1] = '0';
- hex_buffer[bin_size*2+2] = 'a';
- hex_buffer[bin_size*2+3] = 0x0;
+ hex_buffer[bin_size*2+1] = 0;
- gdb_put_packet(connection, hex_buffer, bin_size*2 + 3);
+ int retval = gdb_put_packet(connection, hex_buffer, bin_size*2 + 1);
free(hex_buffer);
- return ERROR_OK;
+ return retval;
}
-int gdb_output(struct command_context_s *context, char* line)
+int gdb_output(struct command_context_s *context, const char* line)
{
/* this will be dumped to the log and also sent as an O packet if possible */
- USER(line);
+ LOG_USER_N("%s", line);
return ERROR_OK;
}
-int gdb_program_handler(struct target_s *target, enum target_event event, void *priv)
+
+static void gdb_frontend_halted(struct target_s *target, connection_t *connection)
{
- FILE *script;
- struct command_context_s *cmd_ctx = priv;
-
- if (target->gdb_program_script)
+ gdb_connection_t *gdb_connection = connection->priv;
+
+ /* In the GDB protocol when we are stepping or coninuing execution,
+ * we have a lingering reply. Upon receiving a halted event
+ * when we have that lingering packet, we reply to the original
+ * step or continue packet.
+ *
+ * Executing monitor commands can bring the target in and
+ * out of the running state so we'll see lots of TARGET_EVENT_XXX
+ * that are to be ignored.
+ */
+ if (gdb_connection->frontend_state == TARGET_RUNNING)
{
- script = open_file_from_path(cmd_ctx, target->gdb_program_script, "r");
- if (!script)
+ char sig_reply[4];
+ int signal;
+
+ /* stop forwarding log packets! */
+ log_remove_callback(gdb_log_callback, connection);
+
+ if (gdb_connection->ctrl_c)
{
- ERROR("couldn't open script file %s", target->gdb_program_script);
- return ERROR_OK;
+ signal = 0x2;
+ gdb_connection->ctrl_c = 0;
+ }
+ else
+ {
+ signal = gdb_last_signal(target);
}
- INFO("executing gdb_program script '%s'", target->gdb_program_script);
- command_run_file(cmd_ctx, script, COMMAND_EXEC);
- fclose(script);
-
- jtag_execute_queue();
+ snprintf(sig_reply, 4, "T%2.2x", signal);
+ gdb_put_packet(connection, sig_reply, 3);
+ gdb_connection->frontend_state = TARGET_HALTED;
}
-
- return ERROR_OK;
}
int gdb_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv)
{
+ int retval;
connection_t *connection = priv;
- gdb_connection_t *gdb_connection = connection->priv;
- char sig_reply[4];
- int signal;
+ target_handle_event( target, event );
switch (event)
{
+ case TARGET_EVENT_EARLY_HALTED:
+ gdb_frontend_halted(target, connection);
+ break;
case TARGET_EVENT_HALTED:
- /* In the GDB protocol when we are stepping or coninuing execution,
- * we have a lingering reply. Upon receiving a halted event
- * when we have that lingering packet, we reply to the original
- * step or continue packet.
- *
- * Executing monitor commands can bring the target in and
- * out of the running state so we'll see lots of TARGET_EVENT_XXX
- * that are to be ignored.
- */
- if (gdb_connection->frontend_state == TARGET_RUNNING)
+ target_call_event_callbacks(target, TARGET_EVENT_GDB_END);
+ break;
+ case TARGET_EVENT_GDB_FLASH_ERASE_START:
+ target_handle_event( target, TARGET_EVENT_OLD_gdb_program_config );
+ if ((retval = jtag_execute_queue()) != ERROR_OK)
{
- /* stop forwarding log packets! */
- log_setCallback(NULL, NULL);
-
- if (gdb_connection->ctrl_c)
- {
- signal = 0x2;
- gdb_connection->ctrl_c = 0;
- }
- else
- {
- signal = gdb_last_signal(target);
- }
-
- snprintf(sig_reply, 4, "T%2.2x", signal);
- gdb_put_packet(connection, sig_reply, 3);
- gdb_connection->frontend_state = TARGET_HALTED;
+ return retval;
}
break;
- case TARGET_EVENT_GDB_PROGRAM:
- gdb_program_handler(target, event, connection->cmd_ctx);
- break;
default:
break;
}
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);
+
/* output goes through gdb connection */
command_set_output_handler(connection->cmd_ctx, gdb_output, connection);
- /* register callback to be informed about target events */
- target_register_event_callback(gdb_target_callback_event_handler, connection);
-
- /* a gdb session just attached, put the target in halt mode */
- if (((retval = gdb_service->target->type->halt(gdb_service->target)) != ERROR_OK) &&
- (retval != ERROR_TARGET_ALREADY_HALTED))
- {
- ERROR("error(%d) when trying to halt target, falling back to \"reset halt\"", retval);
- command_run_line(connection->cmd_ctx, "reset halt");
- }
+ /* we must remove all breakpoints registered to the target as a previous
+ * GDB session could leave dangling breakpoints if e.g. communication
+ * timed out.
+ */
+ breakpoint_clear_target(gdb_service->target);
+ watchpoint_clear_target(gdb_service->target);
- /* This will time out after 1 second */
- command_run_line(connection->cmd_ctx, "wait_halt 1");
+ /* register callback to be informed about target events */
+ target_register_event_callback(gdb_target_callback_event_handler, connection);
+
+ /* a gdb session just attached, try to put the target in halt mode.
+ *
+ * DANGER!!!!
+ *
+ * If the halt fails(e.g. target needs a reset, JTAG communication not
+ * working, etc.), then the GDB connect will succeed as
+ * the get_gdb_reg_list() will lie and return a register list with
+ * dummy values.
+ *
+ * This allows GDB monitor commands to be run from a GDB init script to
+ * initialize the target
+ *
+ * Also, since the halt() is asynchronous target connect will be
+ * instantaneous and thus avoiding annoying timeout problems during
+ * connect.
+ */
+ target_halt(gdb_service->target);
+ /* FIX!!!! could extended-remote work better here?
+ *
+ * wait a tiny bit for halted state or we just continue. The
+ * GDB register packet will then contain garbage
+ */
+ target_wait_state(gdb_service->target, TARGET_HALTED, 500);
/* remove the initial ACK from the incoming buffer */
if ((retval = gdb_get_char(connection, &initial_ack)) != ERROR_OK)
return retval;
+ /* FIX!!!??? would we actually ever receive a + here???
+ * Not observed.
+ */
if (initial_ack != '+')
gdb_putback_char(connection, initial_ack);
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_ATTACH );
+
+ gdb_actual_connections++;
return ERROR_OK;
}
gdb_service_t *gdb_service = connection->service->priv;
gdb_connection_t *gdb_connection = connection->priv;
+ gdb_actual_connections--;
+
/* see if an image built with vFlash commands is left */
if (gdb_connection->vflash_image)
{
/* if this connection registered a debug-message receiver delete it */
delete_debug_msg_receiver(connection->cmd_ctx, gdb_service->target);
-
+
if (connection->priv)
{
free(connection->priv);
}
else
{
- ERROR("BUG: connection->priv == NULL");
+ LOG_ERROR("BUG: connection->priv == NULL");
}
target_unregister_event_callback(gdb_target_callback_event_handler, connection);
- log_setCallback(NULL, NULL);
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_END);
+ log_remove_callback(gdb_log_callback, connection);
+
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_DETACH );
return ERROR_OK;
}
-void gdb_send_error(connection_t *connection, u8 the_error)
+void gdb_send_error(connection_t *connection, uint8_t the_error)
{
char err[4];
snprintf(err, 4, "E%2.2X", the_error );
return ERROR_OK;
}
-/* Convert register to string of bits. NB! The # of bits in the
+static int gdb_reg_pos(target_t *target, int pos, int len)
+{
+ if (target->endianness == TARGET_LITTLE_ENDIAN)
+ return pos;
+ else
+ return len - 1 - pos;
+}
+
+/* Convert register to string of bytes. NB! The # of bits in the
* register might be non-divisible by 8(a byte), in which
- * case an entire byte is shown. */
+ * case an entire byte is shown.
+ *
+ * NB! the format on the wire is the target endianess
+ *
+ * The format of reg->value is little endian
+ *
+ */
void gdb_str_to_target(target_t *target, char *tstr, reg_t *reg)
{
int i;
- u8 *buf;
+ uint8_t *buf;
int buf_len;
buf = reg->value;
- buf_len = CEIL(reg->size, 8);
+ buf_len = CEIL(reg->size, 8);
- if (target->endianness == TARGET_LITTLE_ENDIAN)
+ for (i = 0; i < buf_len; i++)
{
- for (i = 0; i < buf_len; i++)
- {
- tstr[i*2] = DIGITS[(buf[i]>>4) & 0xf];
- tstr[i*2+1] = DIGITS[buf[i]&0xf];
- }
+ int j = gdb_reg_pos(target, i, buf_len);
+ tstr[i*2] = DIGITS[(buf[j]>>4) & 0xf];
+ tstr[i*2+1] = DIGITS[buf[j]&0xf];
}
- else
- {
- for (i = 0; i < buf_len; i++)
- {
- tstr[(buf_len-1-i)*2] = DIGITS[(buf[i]>>4)&0xf];
- tstr[(buf_len-1-i)*2+1] = DIGITS[buf[i]&0xf];
- }
- }
}
-void gdb_target_to_str(target_t *target, char *tstr, char *str)
+static int hextoint(char c)
{
- int str_len = strlen(tstr);
- int i;
+ if (c>='0'&&c<='9')
+ {
+ return c-'0';
+ }
+ c=toupper(c);
+ if (c>='A'&&c<='F')
+ {
+ return c-'A'+10;
+ }
+ LOG_ERROR("BUG: invalid register value %08x", c);
+ return 0;
+}
+/* copy over in register buffer */
+void gdb_target_to_reg(target_t *target, char *tstr, int str_len, uint8_t *bin)
+{
if (str_len % 2)
{
- ERROR("BUG: gdb value with uneven number of characters encountered");
+ LOG_ERROR("BUG: gdb value with uneven number of characters encountered");
exit(-1);
}
- if (target->endianness == TARGET_LITTLE_ENDIAN)
+ int i;
+ for (i = 0; i < str_len; i += 2)
{
- for (i = 0; i < str_len; i+=2)
- {
- str[str_len - i - 1] = tstr[i + 1];
- str[str_len - i - 2] = tstr[i];
- }
+ uint8_t t = hextoint(tstr[i]) << 4;
+ t |= hextoint(tstr[i+1]);
+
+ int j = gdb_reg_pos(target, i/2, str_len/2);
+ bin[j] = t;
}
- else
- {
- for (i = 0; i < str_len; i++)
- {
- str[i] = tstr[i];
- }
- }
}
int gdb_get_registers_packet(connection_t *connection, target_t *target, char* packet, int packet_size)
int i;
#ifdef _DEBUG_GDB_IO_
- DEBUG("-");
+ LOG_DEBUG("-");
#endif
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- ERROR("gdb requested registers but we're not halted, dropping connection");
- return ERROR_SERVER_REMOTE_CLOSED;
- default:
- /* this is a bug condition - get_gdb_reg_list() may not return any other error */
- ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
- exit(-1);
- }
+ return gdb_error(connection, retval);
}
for (i = 0; i < reg_list_size; i++)
{
char *reg_packet_p;
reg_packet_p = strndup(reg_packet, CEIL(reg_packet_size, 8) * 2);
- DEBUG("reg_packet: %s", reg_packet_p);
+ LOG_DEBUG("reg_packet: %s", reg_packet_p);
free(reg_packet_p);
}
#endif
char *packet_p;
#ifdef _DEBUG_GDB_IO_
- DEBUG("-");
+ LOG_DEBUG("-");
#endif
/* skip command character */
if (packet_size % 2)
{
- WARNING("GDB set_registers packet with uneven characters received, dropping connection");
+ LOG_WARNING("GDB set_registers packet with uneven characters received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- ERROR("gdb tried to registers but we're not halted, dropping connection");
- return ERROR_SERVER_REMOTE_CLOSED;
- default:
- /* this is a bug condition - get_gdb_reg_list() may not return any other error */
- ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
- exit(-1);
- }
+ return gdb_error(connection, retval);
}
packet_p = packet;
for (i = 0; i < reg_list_size; i++)
{
- u8 *bin_buf;
- char *hex_buf;
- reg_arch_type_t *arch_type;
+ uint8_t *bin_buf;
+ int chars = (CEIL(reg_list[i]->size, 8) * 2);
- /* convert from GDB-string (target-endian) to hex-string (big-endian) */
- hex_buf = malloc(CEIL(reg_list[i]->size, 8) * 2);
- gdb_target_to_str(target, packet_p, hex_buf);
+ if (packet_p + chars > packet + packet_size)
+ {
+ LOG_ERROR("BUG: register packet is too small for registers");
+ }
- /* convert hex-string to binary buffer */
+ reg_arch_type_t *arch_type;
bin_buf = malloc(CEIL(reg_list[i]->size, 8));
- str_to_buf(hex_buf, CEIL(reg_list[i]->size, 8) * 2, bin_buf, reg_list[i]->size, 16);
+ gdb_target_to_reg(target, packet_p, chars, bin_buf);
- /* get register arch_type, and call set method */
+ /* get register arch_type, and call set method */
arch_type = register_get_arch_type(reg_list[i]->arch_type);
- if (arch_type == NULL)
- {
- ERROR("BUG: encountered unregistered arch type");
- exit(-1);
- }
+
arch_type->set(reg_list[i], bin_buf);
- /* advance packet pointer */
- packet_p += (CEIL(reg_list[i]->size, 8) * 2);
+ /* advance packet pointer */
+ packet_p += chars;
+
free(bin_buf);
- free(hex_buf);
}
- /* free reg_t *reg_list[] array allocated by get_gdb_reg_list */
+ /* free reg_t *reg_list[] array allocated by get_gdb_reg_list */
free(reg_list);
gdb_put_packet(connection, "OK", 2);
int retval;
#ifdef _DEBUG_GDB_IO_
- DEBUG("-");
+ LOG_DEBUG("-");
#endif
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- ERROR("gdb requested registers but we're not halted, dropping connection");
- return ERROR_SERVER_REMOTE_CLOSED;
- default:
- /* this is a bug condition - get_gdb_reg_list() may not return any other error */
- ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
- exit(-1);
- }
+ return gdb_error(connection, retval);
}
if (reg_list_size <= reg_num)
{
- ERROR("gdb requested a non-existing register");
+ LOG_ERROR("gdb requested a non-existing register");
exit(-1);
}
int gdb_set_register_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
{
char *separator;
- char *hex_buf;
- u8 *bin_buf;
+ uint8_t *bin_buf;
int reg_num = strtoul(packet + 1, &separator, 16);
reg_t **reg_list;
int reg_list_size;
int retval;
reg_arch_type_t *arch_type;
- DEBUG("-");
+ LOG_DEBUG("-");
- if ((retval = target->type->get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
+ if ((retval = target_get_gdb_reg_list(target, ®_list, ®_list_size)) != ERROR_OK)
{
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- ERROR("gdb tried to set a register but we're not halted, dropping connection");
- return ERROR_SERVER_REMOTE_CLOSED;
- default:
- /* this is a bug condition - get_gdb_reg_list() may not return any other error */
- ERROR("BUG: unexpected error returned by get_gdb_reg_list()");
- exit(-1);
- }
+ return gdb_error(connection, retval);
}
if (reg_list_size < reg_num)
{
- ERROR("gdb requested a non-existing register");
+ LOG_ERROR("gdb requested a non-existing register");
return ERROR_SERVER_REMOTE_CLOSED;
}
if (*separator != '=')
{
- ERROR("GDB 'set register packet', but no '=' following the register number");
+ LOG_ERROR("GDB 'set register packet', but no '=' following the register number");
return ERROR_SERVER_REMOTE_CLOSED;
}
/* convert from GDB-string (target-endian) to hex-string (big-endian) */
- hex_buf = malloc(CEIL(reg_list[reg_num]->size, 8) * 2);
- gdb_target_to_str(target, separator + 1, hex_buf);
-
- /* convert hex-string to binary buffer */
bin_buf = malloc(CEIL(reg_list[reg_num]->size, 8));
- str_to_buf(hex_buf, CEIL(reg_list[reg_num]->size, 8) * 2, bin_buf, reg_list[reg_num]->size, 16);
+ int chars = (CEIL(reg_list[reg_num]->size, 8) * 2);
- /* get register arch_type, and call set method */
+ /* fix!!! add some sanity checks on packet size here */
+
+ gdb_target_to_reg(target, separator + 1, chars, bin_buf);
+
+ /* get register arch_type, and call set method */
arch_type = register_get_arch_type(reg_list[reg_num]->arch_type);
- if (arch_type == NULL)
- {
- ERROR("BUG: encountered unregistered arch type");
- exit(-1);
- }
arch_type->set(reg_list[reg_num], bin_buf);
gdb_put_packet(connection, "OK", 2);
free(bin_buf);
- free(hex_buf);
free(reg_list);
return ERROR_OK;
}
-int gdb_memory_packet_error(connection_t *connection, int retval)
+int gdb_error(connection_t *connection, int retval)
{
switch (retval)
{
- case ERROR_TARGET_NOT_HALTED:
- ERROR("gdb tried to read memory but we're not halted, dropping connection");
- return ERROR_SERVER_REMOTE_CLOSED;
case ERROR_TARGET_DATA_ABORT:
gdb_send_error(connection, EIO);
break;
case ERROR_TARGET_UNALIGNED_ACCESS:
gdb_send_error(connection, EFAULT);
break;
+ case ERROR_TARGET_NOT_HALTED:
+ gdb_send_error(connection, EFAULT);
+ break;
default:
/* This could be that the target reset itself. */
- ERROR("unexpected error %i. Dropping connection.", retval);
- return ERROR_SERVER_REMOTE_CLOSED;
+ LOG_ERROR("unexpected error %i", retval);
+ gdb_send_error(connection, EFAULT);
+ break;
}
return ERROR_OK;
/* We don't have to worry about the default 2 second timeout for GDB packets,
* because GDB breaks up large memory reads into smaller reads.
- *
+ *
* 8191 bytes by the looks of it. Why 8191 bytes instead of 8192?????
*/
int gdb_read_memory_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
{
char *separator;
- u32 addr = 0;
- u32 len = 0;
+ uint32_t addr = 0;
+ uint32_t len = 0;
- u8 *buffer;
+ uint8_t *buffer;
char *hex_buffer;
int retval = ERROR_OK;
if (*separator != ',')
{
- ERROR("incomplete read memory packet received, dropping connection");
+ LOG_ERROR("incomplete read memory packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
buffer = malloc(len);
- DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
+ LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
retval = target_read_buffer(target, addr, len, buffer);
- if ((retval == ERROR_TARGET_DATA_ABORT) && (!gdb_report_data_abort))
+ if ((retval != ERROR_OK)&&!gdb_report_data_abort)
{
/* TODO : Here we have to lie and send back all zero's lest stack traces won't work.
* At some point this might be fixed in GDB, in which case this code can be removed.
- *
+ *
* OpenOCD developers are acutely aware of this problem, but there is nothing
* gained by involving the user in this problem that hopefully will get resolved
* eventually
- *
+ *
* http://sourceware.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=2395
*
* For now, the default is to fix up things to make current GDB versions work.
{
hex_buffer = malloc(len * 2 + 1);
- int i;
+ uint32_t i;
for (i = 0; i < len; i++)
{
- u8 t = buffer[i];
+ uint8_t t = buffer[i];
hex_buffer[2 * i] = DIGITS[(t >> 4) & 0xf];
hex_buffer[2 * i + 1] = DIGITS[t & 0xf];
}
}
else
{
- retval = gdb_memory_packet_error(connection, retval);
+ retval = gdb_error(connection, retval);
}
free(buffer);
int gdb_write_memory_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
{
char *separator;
- u32 addr = 0;
- u32 len = 0;
+ uint32_t addr = 0;
+ uint32_t len = 0;
- u8 *buffer;
+ uint8_t *buffer;
- int i;
+ uint32_t i;
int retval;
/* skip command character */
if (*separator != ',')
{
- ERROR("incomplete write memory packet received, dropping connection");
+ LOG_ERROR("incomplete write memory packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
if (*(separator++) != ':')
{
- ERROR("incomplete write memory packet received, dropping connection");
+ LOG_ERROR("incomplete write memory packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
buffer = malloc(len);
- DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
+ LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
for (i=0; i<len; i++)
{
- u32 tmp;
- sscanf(separator + 2*i, "%2x", &tmp);
+ uint32_t tmp;
+ sscanf(separator + 2*i, "%2" SCNx32 , &tmp);
buffer[i] = tmp;
}
}
else
{
- if ((retval = gdb_memory_packet_error(connection, retval)) != ERROR_OK)
- return retval;
+ retval = gdb_error(connection, retval);
}
free(buffer);
- return ERROR_OK;
+ return retval;
}
int gdb_write_memory_binary_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
{
char *separator;
- u32 addr = 0;
- u32 len = 0;
+ uint32_t addr = 0;
+ uint32_t len = 0;
int retval;
if (*separator != ',')
{
- ERROR("incomplete write memory binary packet received, dropping connection");
+ LOG_ERROR("incomplete write memory binary packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
if (*(separator++) != ':')
{
- ERROR("incomplete write memory binary packet received, dropping connection");
+ LOG_ERROR("incomplete write memory binary packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
retval = ERROR_OK;
if (len)
{
- DEBUG("addr: 0x%8.8x, len: 0x%8.8x", addr, len);
+ LOG_DEBUG("addr: 0x%8.8" PRIx32 ", len: 0x%8.8" PRIx32 "", addr, len);
- retval = target_write_buffer(target, addr, len, (u8*)separator);
+ retval = target_write_buffer(target, addr, len, (uint8_t*)separator);
}
if (retval == ERROR_OK)
}
else
{
- if ((retval = gdb_memory_packet_error(connection, retval)) != ERROR_OK)
- return retval;
+ if ((retval = gdb_error(connection, retval)) != ERROR_OK)
+ return retval;
}
return ERROR_OK;
}
-void gdb_step_continue_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
+int gdb_step_continue_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
{
int current = 0;
- u32 address = 0x0;
+ uint32_t address = 0x0;
+ int retval=ERROR_OK;
- DEBUG("-");
+ LOG_DEBUG("-");
if (packet_size > 1)
{
if (packet[0] == 'c')
{
- DEBUG("continue");
- target->type->resume(target, current, address, 0, 0); /* resume at current address, don't handle breakpoints, not debugging */
+ LOG_DEBUG("continue");
+ target_handle_event( target, TARGET_EVENT_OLD_pre_resume );
+ retval=target_resume(target, current, address, 0, 0); /* resume at current address, don't handle breakpoints, not debugging */
}
else if (packet[0] == 's')
{
- DEBUG("step");
- target->type->step(target, current, address, 0); /* step at current or address, don't handle breakpoints */
- }
-}
-
-int gdb_bp_wp_packet_error(connection_t *connection, int retval)
-{
- switch (retval)
- {
- case ERROR_TARGET_NOT_HALTED:
- ERROR("gdb tried to set a breakpoint but we're not halted, dropping connection");
- return ERROR_SERVER_REMOTE_CLOSED;
- break;
- case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
- gdb_send_error(connection, EBUSY);
- break;
- default:
- ERROR("BUG: unexpected error %i", retval);
- exit(-1);
+ LOG_DEBUG("step");
+ /* step at current or address, don't handle breakpoints */
+ retval = target_step(target, current, address, 0);
}
-
- return ERROR_OK;
+ return retval;
}
int gdb_breakpoint_watchpoint_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
int type;
enum breakpoint_type bp_type = BKPT_SOFT /* dummy init to avoid warning */;
enum watchpoint_rw wp_type;
- u32 address;
- u32 size;
+ uint32_t address;
+ uint32_t size;
char *separator;
int retval;
- DEBUG("-");
+ LOG_DEBUG("-");
type = strtoul(packet + 1, &separator, 16);
else if (type == 4) /* access watchpoint */
wp_type = WPT_ACCESS;
+ if (gdb_breakpoint_override && ((bp_type==BKPT_SOFT)||(bp_type==BKPT_HARD)))
+ {
+ bp_type=gdb_breakpoint_override_type;
+ }
+
if (*separator != ',')
{
- ERROR("incomplete breakpoint/watchpoint packet received, dropping connection");
+ LOG_ERROR("incomplete breakpoint/watchpoint packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
if (*separator != ',')
{
- ERROR("incomplete breakpoint/watchpoint packet received, dropping connection");
+ LOG_ERROR("incomplete breakpoint/watchpoint packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
{
if ((retval = breakpoint_add(target, address, size, bp_type)) != ERROR_OK)
{
- if ((retval = gdb_bp_wp_packet_error(connection, retval)) != ERROR_OK)
+ if ((retval = gdb_error(connection, retval)) != ERROR_OK)
return retval;
}
else
{
if ((retval = watchpoint_add(target, address, size, type-2, 0, 0xffffffffu)) != ERROR_OK)
{
- if ((retval = gdb_bp_wp_packet_error(connection, retval)) != ERROR_OK)
+ if ((retval = gdb_error(connection, retval)) != ERROR_OK)
return retval;
}
else
return;
}
int first = 1;
-
+
for (;;)
{
if ((*xml == NULL) || (!first))
{
/* start by 0 to exercise all the code paths.
* Need minimum 2 bytes to fit 1 char and 0 terminator. */
-
+
*size = *size * 2 + 2;
char *t = *xml;
*xml = realloc(*xml, *size);
return;
}
}
-
- va_list ap;
- int ret;
- va_start(ap, fmt);
- ret = vsnprintf(*xml + *pos, *size - *pos, fmt, ap);
- va_end(ap);
- if ((ret > 0) && ((ret + 1) < *size - *pos))
- {
- *pos += ret;
- return;
- }
- /* there was just enough or not enough space, allocate more. */
- first = 0;
+
+ va_list ap;
+ int ret;
+ va_start(ap, fmt);
+ ret = vsnprintf(*xml + *pos, *size - *pos, fmt, ap);
+ va_end(ap);
+ if ((ret > 0) && ((ret + 1) < *size - *pos))
+ {
+ *pos += ret;
+ return;
+ }
+ /* there was just enough or not enough space, allocate more. */
+ first = 0;
}
}
static int decode_xfer_read(char *buf, char **annex, int *ofs, unsigned int *len)
{
char *separator;
-
+
/* Extract and NUL-terminate the annex. */
*annex = buf;
while (*buf && *buf != ':')
if (*buf == '\0')
return -1;
*buf++ = 0;
-
+
/* After the read marker and annex, qXfer looks like a
* traditional 'm' packet. */
-
+
*ofs = strtoul(buf, &separator, 16);
if (*separator != ',')
return -1;
*len = strtoul(separator+1, NULL, 16);
-
+
return 0;
}
int gdb_calc_blocksize(flash_bank_t *bank)
{
- int i;
- int block_size = 0xffffffff;
-
+ uint32_t i;
+ uint32_t block_size = 0xffffffff;
+
/* loop through all sectors and return smallest sector size */
-
- for (i = 0; i < bank->num_sectors; i++)
+
+ for (i = 0; i < (uint32_t)bank->num_sectors; i++)
{
if (bank->sectors[i].size < block_size)
block_size = bank->sectors[i].size;
}
-
+
return block_size;
}
+static int compare_bank (const void * a, const void * b)
+{
+ flash_bank_t *b1, *b2;
+ b1=*((flash_bank_t **)a);
+ b2=*((flash_bank_t **)b);
+
+ if (b1->base==b2->base)
+ {
+ return 0;
+ } else if (b1->base>b2->base)
+ {
+ return 1;
+ } else
+ {
+ return -1;
+ }
+}
+
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)
cmd = malloc((packet_size - 6)/2 + 1);
for (i=0; i < (packet_size - 6)/2; i++)
{
- u32 tmp;
- sscanf(packet + 6 + 2*i, "%2x", &tmp);
+ uint32_t tmp;
+ sscanf(packet + 6 + 2*i, "%2" SCNx32 , &tmp);
cmd[i] = tmp;
}
cmd[(packet_size - 6)/2] = 0x0;
-
+
/* We want to print all debug output to GDB connection */
- log_setCallback(gdb_log_callback, connection);
- target_call_timer_callbacks();
+ log_add_callback(gdb_log_callback, connection);
+ target_call_timer_callbacks_now();
command_run_line(cmd_ctx, cmd);
+ target_call_timer_callbacks_now();
+ log_remove_callback(gdb_log_callback, connection);
free(cmd);
}
gdb_put_packet(connection, "OK", 2);
int retval;
char gdb_reply[10];
char *separator;
- u32 checksum;
- u32 addr = 0;
- u32 len = 0;
-
+ uint32_t checksum;
+ uint32_t addr = 0;
+ uint32_t len = 0;
+
/* skip command character */
packet += 5;
-
+
addr = strtoul(packet, &separator, 16);
-
+
if (*separator != ',')
{
- ERROR("incomplete read memory packet received, dropping connection");
+ LOG_ERROR("incomplete read memory packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
-
+
len = strtoul(separator + 1, NULL, 16);
-
+
retval = target_checksum_memory(target, addr, len, &checksum);
-
+
if (retval == ERROR_OK)
{
- snprintf(gdb_reply, 10, "C%8.8x", checksum);
+ snprintf(gdb_reply, 10, "C%8.8" PRIx32 "", checksum);
gdb_put_packet(connection, gdb_reply, 9);
}
else
{
- if ((retval = gdb_memory_packet_error(connection, retval)) != ERROR_OK)
- return retval;
+ if ((retval = gdb_error(connection, retval)) != ERROR_OK)
+ return retval;
}
-
+
return ERROR_OK;
}
}
int pos = 0;
int size = 0;
- xml_printf(&retval, &buffer, &pos, &size,
- "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-",
- (GDB_BUFFER_SIZE - 1), gdb_use_memory_map == 1 ? '+' : '-');
-
+ xml_printf(&retval, &buffer, &pos, &size,
+ "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)
{
gdb_send_error(connection, 01);
return ERROR_OK;
}
-
+
gdb_put_packet(connection, buffer, strlen(buffer));
free(buffer);
-
+
return ERROR_OK;
}
- else if (strstr(packet, "qXfer:memory-map:read::"))
+ else if (strstr(packet, "qXfer:memory-map:read::") && (flash_get_bank_count()>0))
{
/* We get away with only specifying flash here. Regions that are not
- * specified are treated as if we provided no memory map(if not we
+ * specified are treated as if we provided no memory map(if not we
* could detect the holes and mark them as RAM).
* Normally we only execute this code once, but no big deal if we
* have to regenerate it a couple of times. */
-
+
flash_bank_t *p;
char *xml = NULL;
int size = 0;
int pos = 0;
int retval = ERROR_OK;
-
+
int offset;
int length;
char *separator;
int blocksize;
-
+
/* skip command character */
packet += 23;
-
+
offset = strtoul(packet, &separator, 16);
length = strtoul(separator + 1, &separator, 16);
-
+
xml_printf(&retval, &xml, &pos, &size, "<memory-map>\n");
-
- int i = 0;
- for (;;)
+
+ /*
+ sort banks in ascending order, we need to make non-flash memory be ram(or rather
+ read/write) by default for GDB.
+ GDB does not have a concept of non-cacheable read/write memory.
+ */
+ flash_bank_t **banks=malloc(sizeof(flash_bank_t *)*flash_get_bank_count());
+ int i;
+
+ for (i=0; i<flash_get_bank_count(); i++)
{
p = get_flash_bank_by_num(i);
if (p == NULL)
- break;
-
+ {
+ free(banks);
+ retval = ERROR_FAIL;
+ gdb_send_error(connection, retval);
+ return retval;
+ }
+ banks[i]=p;
+ }
+
+ qsort(banks, flash_get_bank_count(), sizeof(flash_bank_t *), compare_bank);
+
+ uint32_t ram_start=0;
+ for (i=0; i<flash_get_bank_count(); i++)
+ {
+ p = banks[i];
+
+ if (ram_start<p->base)
+ {
+ xml_printf(&retval, &xml, &pos, &size, "<memory type=\"ram\" start=\"0x%x\" length=\"0x%x\"/>\n",
+ ram_start, p->base-ram_start);
+ }
+
/* if device has uneven sector sizes, eg. str7, lpc
* we pass the smallest sector size to gdb memory map */
blocksize = gdb_calc_blocksize(p);
-
+
xml_printf(&retval, &xml, &pos, &size, "<memory type=\"flash\" start=\"0x%x\" length=\"0x%x\">\n" \
"<property name=\"blocksize\">0x%x</property>\n" \
"</memory>\n", \
p->base, p->size, blocksize);
- i++;
+ ram_start=p->base+p->size;
}
-
+ if (ram_start != 0)
+ {
+ xml_printf(&retval, &xml, &pos, &size, "<memory type=\"ram\" start=\"0x%x\" length=\"0x%x\"/>\n",
+ ram_start, 0-ram_start);
+ } else
+ {
+ /* a flash chip could be at the very end of the 32 bit address space, in which case
+ ram_start will be precisely 0 */
+ }
+
+ free(banks);
+ banks = NULL;
+
xml_printf(&retval, &xml, &pos, &size, "</memory-map>\n");
if (retval != ERROR_OK)
gdb_send_error(connection, retval);
return retval;
}
-
+
if (offset + length > pos)
{
length = pos - offset;
t[0] = 'l';
memcpy(t + 1, xml + offset, length);
gdb_put_packet(connection, t, length + 1);
-
+
free(t);
free(xml);
return ERROR_OK;
}
else if (strstr(packet, "qXfer:features:read:"))
- {
+ {
char *xml = NULL;
int size = 0;
int pos = 0;
int retval = ERROR_OK;
-
+
int offset;
unsigned int length;
char *annex;
-
+
/* skip command character */
packet += 20;
-
+
if (decode_xfer_read(packet, &annex, &offset, &length) < 0)
{
gdb_send_error(connection, 01);
return ERROR_OK;
}
-
+
if (strcmp(annex, "target.xml") != 0)
{
gdb_send_error(connection, 01);
return ERROR_OK;
}
-
+
xml_printf(&retval, &xml, &pos, &size, \
"l<target version=\"1.0\">\n<architecture>arm</architecture>\n</target>\n");
-
+
if (retval != ERROR_OK)
{
gdb_send_error(connection, retval);
return retval;
}
-
- gdb_put_packet(connection, xml, strlen(xml) + 1);
-
+
+ gdb_put_packet(connection, xml, strlen(xml));
+
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;
}
int result;
/* if flash programming disabled - send a empty reply */
-
+
if (gdb_flash_program == 0)
{
gdb_put_packet(connection, "", 0);
return ERROR_OK;
}
-
+
if (strstr(packet, "vFlashErase:"))
{
unsigned long addr;
unsigned long length;
-
+
char *parse = packet + 12;
if (*parse == '\0')
{
- ERROR("incomplete vFlashErase packet received, dropping connection");
+ LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
if (*(parse++) != ',' || *parse == '\0')
{
- ERROR("incomplete vFlashErase packet received, dropping connection");
+ LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
if (*parse != '\0')
{
- ERROR("incomplete vFlashErase packet received, dropping connection");
+ LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
-
+
/* assume all sectors need erasing - stops any problems
* when flash_write is called multiple times */
flash_set_dirty();
-
+
/* perform any target specific operations before the erase */
- target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_PROGRAM);
-
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_ERASE_START);
+ result = flash_erase_address_range(gdb_service->target, addr, length );
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_ERASE_END);
+
/* perform erase */
- if ((result = flash_erase_address_range(gdb_service->target, addr, length)) != ERROR_OK)
+ if (result != ERROR_OK)
{
/* GDB doesn't evaluate the actual error number returned,
* treat a failed erase as an I/O error
*/
gdb_send_error(connection, EIO);
- ERROR("flash_erase returned %i", result);
+ LOG_ERROR("flash_erase returned %i", result);
}
else
gdb_put_packet(connection, "OK", 2);
-
+
return ERROR_OK;
}
if (strstr(packet, "vFlashWrite:"))
{
+ int retval;
unsigned long addr;
unsigned long length;
char *parse = packet + 12;
if (*parse == '\0')
{
- ERROR("incomplete vFlashErase packet received, dropping connection");
+ LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
addr = strtoul(parse, &parse, 16);
if (*(parse++) != ':')
{
- ERROR("incomplete vFlashErase packet received, dropping connection");
+ LOG_ERROR("incomplete vFlashErase packet received, dropping connection");
return ERROR_SERVER_REMOTE_CLOSED;
}
length = packet_size - (parse - packet);
-
+
/* create a new image if there isn't already one */
if (gdb_connection->vflash_image == NULL)
{
}
/* create new section with content from packet buffer */
- image_add_section(gdb_connection->vflash_image, addr, length, 0x0, (u8*)parse);
+ if ((retval = image_add_section(gdb_connection->vflash_image, addr, length, 0x0, (uint8_t*)parse)) != ERROR_OK)
+ {
+ return retval;
+ }
gdb_put_packet(connection, "OK", 2);
if (!strcmp(packet, "vFlashDone"))
{
- u32 written;
- char *error_str;
+ uint32_t written;
/* process the flashing buffer. No need to erase as GDB
* always issues a vFlashErase first. */
- if ((result = flash_write(gdb_service->target, gdb_connection->vflash_image, &written, &error_str, NULL, 0)) != ERROR_OK)
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_WRITE_START);
+ result = flash_write(gdb_service->target, gdb_connection->vflash_image, &written, 0);
+ target_call_event_callbacks(gdb_service->target, TARGET_EVENT_GDB_FLASH_WRITE_END);
+ if ( result != ERROR_OK)
{
if (result == ERROR_FLASH_DST_OUT_OF_BANK)
gdb_put_packet(connection, "E.memtype", 9);
else
gdb_send_error(connection, EIO);
-
- if (error_str)
- {
- ERROR("flash writing failed: %s", error_str);
- free(error_str);
}
- }
else
{
- DEBUG("wrote %u bytes from vFlash image to flash", written);
+ LOG_DEBUG("wrote %u bytes from vFlash image to flash", (unsigned)written);
gdb_put_packet(connection, "OK", 2);
}
-
+
image_close(gdb_connection->vflash_image);
free(gdb_connection->vflash_image);
gdb_connection->vflash_image = NULL;
-
+
return ERROR_OK;
}
int gdb_detach(connection_t *connection, target_t *target)
{
- switch( detach_mode )
+
+ switch ( detach_mode )
{
case GDB_DETACH_RESUME:
- target->type->resume(target, 1, 0, 1, 0);
+ target_handle_event( target, TARGET_EVENT_OLD_pre_resume );
+ target_resume(target, 1, 0, 1, 0);
break;
-
+
case GDB_DETACH_RESET:
- target_process_reset(connection->cmd_ctx);
+ /* FIX?? make this configurable?? */
+ target_process_reset(connection->cmd_ctx, RESET_HALT);
break;
-
+
case GDB_DETACH_HALT:
- target->type->halt(target);
+ target_halt(target);
break;
-
+
case GDB_DETACH_NOTHING:
break;
}
-
+
gdb_put_packet(connection, "OK", 2);
-
return ERROR_OK;
}
-static void gdb_log_callback(void *priv, const char *file, int line,
- const char *function, const char *format, va_list args)
+static void gdb_log_callback(void *priv, const char *file, int line,
+ const char *function, const char *string)
{
connection_t *connection = priv;
gdb_connection_t *gdb_con = connection->priv;
-
+
if (gdb_con->busy)
{
/* do not reply this using the O packet */
return;
}
- char *t = allocPrintf(format, args);
- if (t == NULL)
- return;
-
- gdb_output_con(connection, t);
-
- free(t);
+ gdb_output_con(connection, string);
+}
+
+/* Do not allocate this on the stack */
+char gdb_packet_buffer[GDB_BUFFER_SIZE];
+
+static void gdb_sig_halted(connection_t *connection)
+{
+ char sig_reply[4];
+ snprintf(sig_reply, 4, "T%2.2x", 2);
+ gdb_put_packet(connection, sig_reply, 3);
+
}
int gdb_input_inner(connection_t *connection)
{
gdb_service_t *gdb_service = connection->service->priv;
target_t *target = gdb_service->target;
- char packet[GDB_BUFFER_SIZE];
+ char *packet=gdb_packet_buffer;
int packet_size;
int retval;
gdb_connection_t *gdb_con = connection->priv;
/* terminate with zero */
packet[packet_size] = 0;
- DEBUG("received packet: '%s'", packet);
+ if ( LOG_LEVEL_IS( LOG_LVL_DEBUG ) ){
+ if ( packet[0] == 'X' ){
+ // binary packets spew junk into the debug log stream
+ char buf[ 50 ];
+ int x;
+ for ( x = 0 ; (x < 49) && (packet[x] != ':') ; x++ ){
+ buf[x] = packet[x];
+ }
+ buf[x] = 0;
+ LOG_DEBUG("received packet: '%s:<binary-data>'", buf );
+ } else {
+ LOG_DEBUG("received packet: '%s'", packet );
+ }
+ }
if (packet_size > 0)
{
switch (packet[0])
{
case 'H':
- /* Hct... -- set thread
+ /* Hct... -- set thread
* we don't have threads, send empty reply */
gdb_put_packet(connection, NULL, 0);
break;
case 'q':
+ case 'Q':
retval = gdb_query_packet(connection, target, packet, packet_size);
break;
case 'g':
case 'c':
case 's':
{
- /* We're running/stepping, in which case we can
- * forward log output until the target is halted */
- gdb_connection_t *gdb_con = connection->priv;
- gdb_con->frontend_state = TARGET_RUNNING;
- log_setCallback(gdb_log_callback, connection);
- gdb_step_continue_packet(connection, target, packet, packet_size);
+ if (target->state != TARGET_HALTED)
+ {
+ /* If the target isn't in the halted state, then we can't
+ * step/continue. This might be early setup, etc.
+ */
+ gdb_sig_halted(connection);
+ } else
+ {
+ /* We're running/stepping, in which case we can
+ * forward log output until the target is halted
+ */
+ gdb_connection_t *gdb_con = connection->priv;
+ gdb_con->frontend_state = TARGET_RUNNING;
+ log_add_callback(gdb_log_callback, connection);
+ target_call_event_callbacks(target, TARGET_EVENT_GDB_START);
+ int retval=gdb_step_continue_packet(connection, target, packet, packet_size);
+ if (retval != ERROR_OK)
+ {
+ /* we'll never receive a halted condition... issue a false one.. */
+ gdb_frontend_halted(target, connection);
+ }
+ }
}
break;
case 'v':
break;
case 'R':
/* handle extended restart packet */
- target_process_reset(connection->cmd_ctx);
+ breakpoint_clear_target(gdb_service->target);
+ watchpoint_clear_target(gdb_service->target);
+ command_run_linef(connection->cmd_ctx, "ocd_gdb_restart %d", get_num_by_target(target));
break;
default:
/* ignore unkown packets */
- DEBUG("ignoring 0x%2.2x packet", packet[0]);
+ LOG_DEBUG("ignoring 0x%2.2x packet", packet[0]);
gdb_put_packet(connection, NULL, 0);
break;
}
{
if (target->state == TARGET_RUNNING)
{
- target->type->halt(target);
+ target_halt(target);
gdb_con->ctrl_c = 0;
}
}
int gdb_input(connection_t *connection)
{
int retval = gdb_input_inner(connection);
+ gdb_connection_t *gdb_con = connection->priv;
if (retval == ERROR_SERVER_REMOTE_CLOSED)
return retval;
+
+ /* logging does not propagate the error, yet can set the gdb_con->closed flag */
+ if (gdb_con->closed)
+ return ERROR_SERVER_REMOTE_CLOSED;
+
/* we'll recover from any other errors(e.g. temporary timeouts, etc.) */
return ERROR_OK;
}
-int gdb_init()
+int gdb_init(void)
{
gdb_service_t *gdb_service;
- target_t *target = targets;
- int i = 0;
+ target_t *target = all_targets;
if (!target)
{
- WARNING("no gdb ports allocated as no target has been specified");
+ LOG_WARNING("no gdb ports allocated as no target has been specified");
return ERROR_OK;
}
- if (gdb_port == 0)
+ if (gdb_port == 0 && server_use_pipes == 0)
{
- WARNING("no gdb port specified, using default port 3333");
- gdb_port = 3333;
+ LOG_INFO("gdb port disabled");
+ return ERROR_OK;
}
- while (target)
+ if (server_use_pipes)
{
- char service_name[8];
-
- snprintf(service_name, 8, "gdb-%2.2i", i);
+ /* only a single gdb connection when using a pipe */
gdb_service = malloc(sizeof(gdb_service_t));
gdb_service->target = target;
- add_service("gdb", CONNECTION_GDB, gdb_port + i, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
+ add_service("gdb", CONNECTION_PIPE, 0, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
- DEBUG("gdb service for target %s at port %i", target->type->name, gdb_port + i);
+ LOG_DEBUG("gdb service for target %s using pipes",
+ target_get_name(target));
+ }
+ else
+ {
+ while (target)
+ {
+ gdb_service = malloc(sizeof(gdb_service_t));
+ gdb_service->target = target;
+
+ add_service("gdb", CONNECTION_TCP, gdb_port + target->target_number, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
- i++;
- target = target->next;
+ LOG_DEBUG("gdb service for target %s at port %i",
+ target_get_name(target),
+ gdb_port + target->target_number);
+ target = target->next;
+ }
}
return ERROR_OK;
int handle_gdb_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc == 0)
+ {
+ command_print(cmd_ctx, "%d", gdb_port);
return ERROR_OK;
+ }
/* only if the port wasn't overwritten by cmdline */
if (gdb_port == 0)
detach_mode = GDB_DETACH_NOTHING;
return ERROR_OK;
}
+ else
+ LOG_WARNING("invalid gdb_detach configuration directive: %s", args[0]);
}
-
- WARNING("invalid gdb_detach configuration directive: %s", args[0]);
- return ERROR_OK;
+
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
int handle_gdb_memory_map_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
gdb_use_memory_map = 0;
return ERROR_OK;
}
+ else
+ LOG_WARNING("invalid gdb_memory_map configuration directive %s", args[0]);
}
-
- WARNING("invalid gdb_memory_map configuration directive: %s", args[0]);
- return ERROR_OK;
+
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
int handle_gdb_flash_program_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
gdb_flash_program = 0;
return ERROR_OK;
}
+ else
+ LOG_WARNING("invalid gdb_flash_program configuration directive: %s", args[0]);
}
-
- WARNING("invalid gdb_memory_map configuration directive: %s", args[0]);
- return ERROR_OK;
+
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
int handle_gdb_report_data_abort_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
gdb_report_data_abort = 0;
return ERROR_OK;
}
+ else
+ LOG_WARNING("invalid gdb_report_data_abort configuration directive: %s", args[0]);
+ }
+
+ return ERROR_COMMAND_SYNTAX_ERROR;
+}
+
+/* gdb_breakpoint_override */
+int handle_gdb_breakpoint_override_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc == 0)
+ {
+
+ } else if (argc==1)
+ {
+ gdb_breakpoint_override = 1;
+ if (strcmp(args[0], "hard")==0)
+ {
+ gdb_breakpoint_override_type=BKPT_HARD;
+ } else if (strcmp(args[0], "soft")==0)
+ {
+ gdb_breakpoint_override_type=BKPT_SOFT;
+ } else if (strcmp(args[0], "disable") == 0)
+ {
+ gdb_breakpoint_override = 0;
+ }
+ } else
+ {
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
-
- WARNING("invalid gdb_report_data_abort configuration directive: %s", args[0]);
+ if (gdb_breakpoint_override)
+ {
+ LOG_USER("force %s breakpoints", (gdb_breakpoint_override_type==BKPT_HARD)?"hard":"soft");
+ } else
+ {
+ LOG_USER("breakpoint type is not overriden");
+ }
+
return ERROR_OK;
}
int gdb_register_commands(command_context_t *command_context)
{
register_command(command_context, NULL, "gdb_port", handle_gdb_port_command,
- COMMAND_CONFIG, "");
+ COMMAND_ANY, "daemon configuration command gdb_port");
register_command(command_context, NULL, "gdb_detach", handle_gdb_detach_command,
- COMMAND_CONFIG, "");
+ COMMAND_CONFIG, "resume/reset/halt/nothing - "
+ "specify behavior when GDB detaches from the target");
register_command(command_context, NULL, "gdb_memory_map", handle_gdb_memory_map_command,
- COMMAND_CONFIG, "");
+ COMMAND_CONFIG, "enable or disable memory map");
register_command(command_context, NULL, "gdb_flash_program", handle_gdb_flash_program_command,
- COMMAND_CONFIG, "");
+ COMMAND_CONFIG, "enable or disable flash program");
register_command(command_context, NULL, "gdb_report_data_abort", handle_gdb_report_data_abort_command,
- COMMAND_CONFIG, "");
+ COMMAND_CONFIG, "enable or disable reporting data aborts");
+ register_command(command_context, NULL, "gdb_breakpoint_override", handle_gdb_breakpoint_override_command,
+ COMMAND_EXEC, "hard/soft/disable - force breakpoint type for gdb 'break' commands.");
return ERROR_OK;
}
projects / fw / openocd / blobdiff