* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
+ * 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 "jtag.h"
#include "breakpoints.h"
#include "flash.h"
+#include "target.h"
#include "target_request.h"
#include "configuration.h"
*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 (select(connection->fd + 1, &read_fds, NULL, NULL, &tv) == 0)
for (;;)
{
- 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 (connection->service->type == CONNECTION_PIPE)
+ {
+ gdb_con->buf_cnt = read(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;
gdb_connection_t *gdb_con = connection->priv;
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;
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.
break;
if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
return retval;
+ if( reply == '$' ){
+ /* fix a problem with some IAR tools */
+ gdb_putback_char( connection, reply );
+ LOG_DEBUG("Unexpected start of new packet");
+ break;
+ }
+
LOG_WARNING("Discard unexpected char %c", reply);
}
#endif
local_buffer[len++] = '#';
local_buffer[len++] = DIGITS[(my_checksum >> 4) & 0xf];
local_buffer[len++] = DIGITS[my_checksum & 0xf];
- gdb_write(connection, local_buffer, len);
+ if((retval = gdb_write(connection, local_buffer, len)) != ERROR_OK)
+ {
+ return retval;
+ }
}
else
{
local_buffer[1] = '#';
local_buffer[2] = DIGITS[(my_checksum >> 4) & 0xf];
local_buffer[3] = DIGITS[my_checksum & 0xf];
- gdb_write(connection, local_buffer, 1);
- gdb_write(connection, buffer, len);
- gdb_write(connection, local_buffer+1, 3);
+ if((retval = gdb_write(connection, local_buffer, 1)) != ERROR_OK)
+ {
+ return retval;
+ }
+ if((retval = gdb_write(connection, buffer, len)) != ERROR_OK)
+ {
+ return retval;
+ }
+ if((retval = gdb_write(connection, local_buffer+1, 3)) != ERROR_OK)
+ {
+ return retval;
+ }
}
+ if (gdb_con->noack_mode)
+ break;
+
if ((retval = gdb_get_char(connection, &reply)) != ERROR_OK)
return retval;
log_remove_callback(gdb_log_callback, connection);
LOG_WARNING("negative reply, retrying");
}
- else
- {
- LOG_ERROR("unknown character 0x%2.2x in reply, dropping connection", reply);
+ else if( reply == '$' ){
+ 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
{
- LOG_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)
}
} 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)
- {
- LOG_ERROR("packet buffer too small");
- return ERROR_GDB_BUFFER_TOO_SMALL;
- }
- if ((retval = gdb_get_char(connection, &character)) != ERROR_OK)
+ int checksum_ok;
+ /* 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;
-
- 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 (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;
}
-
- LOG_WARNING("checksum error, requesting retransmission");
- gdb_write(connection, "-", 1);
}
if (gdb_con->closed)
return ERROR_SERVER_REMOTE_CLOSED;
snprintf(hex_buffer + 1 + i*2, 3, "%2.2x", line[i]);
hex_buffer[bin_size*2+1] = 0;
- gdb_put_packet(connection, hex_buffer, bin_size*2 + 1);
+ 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, const char* line)
return ERROR_OK;
}
-int gdb_program_handler(struct target_s *target, enum target_event event, void *priv)
-{
- struct command_context_s *cmd_ctx = priv;
-
- target_invoke_script(cmd_ctx, target, "gdb_program");
- jtag_execute_queue();
-
- return ERROR_OK;
-}
static void gdb_frontend_halted(struct target_s *target, connection_t *connection)
{
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
{
char sig_reply[4];
int signal;
+
/* stop forwarding log packets! */
log_remove_callback(gdb_log_callback, connection);
int gdb_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv)
{
+ int retval;
connection_t *connection = priv;
+ target_handle_event( target, event );
switch (event)
{
- case TARGET_EVENT_HALTED:
+ case TARGET_EVENT_EARLY_HALTED:
gdb_frontend_halted(target, connection);
break;
- case TARGET_EVENT_GDB_PROGRAM:
- gdb_program_handler(target, event, connection->cmd_ctx);
+ case TARGET_EVENT_HALTED:
+ 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)
+ {
+ return retval;
+ }
break;
default:
break;
return ERROR_OK;
}
-
int gdb_new_connection(connection_t *connection)
{
gdb_connection_t *gdb_connection = malloc(sizeof(gdb_connection_t));
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);
command_set_output_handler(connection->cmd_ctx, gdb_output, connection);
/* we must remove all breakpoints registered to the target as a previous
- * GDB session could leave dangling breakpoints if e.g. communication
+ * GDB session could leave dangling breakpoints if e.g. communication
* timed out.
*/
breakpoint_clear_target(gdb_service->target);
watchpoint_clear_target(gdb_service->target);
-
+
/* 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!!!!
- *
+ *
+ * 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.
+ * 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
+ * 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???
+ /* 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 );
return ERROR_OK;
}
}
target_unregister_event_callback(gdb_target_callback_event_handler, connection);
+ 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;
}
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;
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];
}
}
-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, u8 *bin)
+{
if (str_len % 2)
{
LOG_ERROR("BUG: gdb value with uneven number of characters encountered");
exit(-1);
}
+ int i;
for (i = 0; i < str_len; i+=2)
{
- str[str_len - i - 1] = tstr[i + 1];
- str[str_len - i - 2] = tstr[i];
+ u8 t = hextoint(tstr[i])<<4;
+ t |= hextoint(tstr[i+1]);
+
+ int j = gdb_reg_pos(target, i/2, str_len/2);
+ bin[j] = t;
}
}
for (i = 0; i < reg_list_size; i++)
{
u8 *bin_buf;
- char *hex_buf;
- reg_arch_type_t *arch_type;
+ 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 */
arch_type = register_get_arch_type(reg_list[i]->arch_type);
- if (arch_type == NULL)
- {
- LOG_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);
+ packet_p += chars;
+
free(bin_buf);
- free(hex_buf);
}
/* free reg_t *reg_list[] array allocated by get_gdb_reg_list */
int gdb_set_register_packet(connection_t *connection, target_t *target, char *packet, int packet_size)
{
char *separator;
- char *hex_buf;
u8 *bin_buf;
int reg_num = strtoul(packet + 1, &separator, 16);
reg_t **reg_list;
if (reg_list_size < reg_num)
{
LOG_ERROR("gdb requested a non-existing register");
- return ERROR_SERVER_REMOTE_CLOSED;
+ return ERROR_SERVER_REMOTE_CLOSED;
}
if (*separator != '=')
}
/* 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);
+
+ /* fix!!! add some sanity checks on packet size here */
- /* get register arch_type, and call set method */
+ 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)
- {
- LOG_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;
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.
if (packet[0] == 'c')
{
LOG_DEBUG("continue");
- target_invoke_script(connection->cmd_ctx, target, "pre_resume");
+ 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')
wp_type = WPT_READ;
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;
flash_bank_t *b1, *b2;
b1=*((flash_bank_t **)a);
b2=*((flash_bank_t **)b);
-
+
if (b1->base==b2->base)
{
return 0;
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,"))
{
int size = 0;
xml_printf(&retval, &buffer, &pos, &size,
- "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-",
+ "PacketSize=%x;qXfer:memory-map:read%c;qXfer:features:read-;QStartNoAckMode+",
(GDB_BUFFER_SIZE - 1), ((gdb_use_memory_map == 1)&&(flash_get_bank_count()>0)) ? '+' : '-');
if (retval != ERROR_OK)
length = strtoul(separator + 1, &separator, 16);
xml_printf(&retval, &xml, &pos, &size, "<memory-map>\n");
-
- /*
+
+ /*
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);
}
banks[i]=p;
}
-
+
qsort(banks, flash_get_bank_count(), sizeof(flash_bank_t *), compare_bank);
-
+
u32 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);
- ram_start=p->base+p->size;
+ ram_start=p->base+p->size;
}
if (ram_start!=0)
{
/* 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;
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;
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
if (strstr(packet, "vFlashWrite:"))
{
+ int retval;
unsigned long addr;
unsigned long length;
char *parse = packet + 12;
}
/* 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, (u8*)parse)) != ERROR_OK)
+ {
+ return retval;
+ }
gdb_put_packet(connection, "OK", 2);
/* 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, 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);
int gdb_detach(connection_t *connection, target_t *target)
{
+
switch( detach_mode )
{
case GDB_DETACH_RESUME:
- target_invoke_script(connection->cmd_ctx, target, "pre_resume");
+ target_handle_event( target, TARGET_EVENT_OLD_pre_resume );
target_resume(target, 1, 0, 1, 0);
break;
}
gdb_put_packet(connection, "OK", 2);
-
return ERROR_OK;
}
/* terminate with zero */
packet[packet_size] = 0;
- LOG_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)
{
gdb_put_packet(connection, NULL, 0);
break;
case 'q':
+ case 'Q':
retval = gdb_query_packet(connection, target, packet, packet_size);
break;
case 'g':
} else
{
/* We're running/stepping, in which case we can
- * forward log output until the target is halted
+ * 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);
+ gdb_frontend_halted(target, connection);
}
}
}
break;
case 'R':
/* handle extended restart packet */
+ 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:
if (retval == ERROR_SERVER_REMOTE_CLOSED)
return retval;
- /* logging does not propagate the error, yet can set th gdb_con->closed flag */
+ /* 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(void)
{
gdb_service_t *gdb_service;
- target_t *target = targets;
- int i = 0;
+ target_t *target = all_targets;
if (!target)
{
return ERROR_OK;
}
- if (gdb_port == 0)
+ if (gdb_port == 0 && server_use_pipes == 0)
{
LOG_WARNING("no gdb port specified, using default port 3333");
gdb_port = 3333;
}
- 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);
-
- LOG_DEBUG("gdb service for target %s at port %i", target->type->name, gdb_port + i);
+ add_service("gdb", CONNECTION_PIPE, 0, 1, gdb_new_connection, gdb_input, gdb_connection_closed, gdb_service);
- i++;
- target = target->next;
+ LOG_DEBUG("gdb service for target %s using pipes", target->type->name);
}
+ 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);
+
+ LOG_DEBUG("gdb service for target %s at port %i", target->type->name, 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]);
}
- LOG_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]);
}
- LOG_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]);
}
- LOG_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]);
}
- LOG_WARNING("invalid gdb_report_data_abort configuration directive: %s", args[0]);
- return ERROR_OK;
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
-/* daemon configuration command gdb_port */
+/* 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;
{
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_CONFIG, "daemon configuration command gdb_port");
register_command(command_context, NULL, "gdb_detach", handle_gdb_detach_command,
COMMAND_CONFIG, "");
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 report data");
register_command(command_context, NULL, "gdb_breakpoint_override", handle_gdb_breakpoint_override_command,
COMMAND_EXEC, "hard/soft/disabled - force breakpoint type for gdb 'break' commands."
"The raison d'etre for this option is to support GDB GUI's without "
Code Review / openocd.git / blobdiff