static enum breakpoint_type gdb_breakpoint_override_type;
static int gdb_error(struct connection *connection, int retval);
-static unsigned short gdb_port = 3333;
-static unsigned short gdb_port_next = 0;
+static const char *gdb_port;
+static const char *gdb_port_next;
static const char DIGITS[16] = "0123456789abcdef";
static void gdb_log_callback(void *priv, const char *file, unsigned line,
#endif
for (;;)
{
- if (connection->service->type == CONNECTION_PIPE)
+ if (connection->service->type != CONNECTION_TCP)
{
gdb_con->buf_cnt = read(connection->fd, gdb_con->buffer, GDB_BUFFER_SIZE);
}
if (gdb_con->closed)
return ERROR_SERVER_REMOTE_CLOSED;
- if (connection->service->type == CONNECTION_PIPE)
+ if (connection_write(connection, data, len) == len)
{
- /* 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;
- }
+ return ERROR_OK;
}
gdb_con->closed = 1;
return ERROR_SERVER_REMOTE_CLOSED;
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);
-
/* remove the initial ACK from the incoming buffer */
if ((retval = gdb_get_char(connection, &initial_ack)) != ERROR_OK)
return retval;
retval = get_flash_bank_by_num(i, &p);
if (retval != ERROR_OK)
{
- LOG_ERROR("Connect failed. Consider setting up a gdb-attach event for the target to prepare target for GDB connect.");
+ LOG_ERROR("Connect failed. Consider setting up a gdb-attach event for the target to prepare target for GDB connect, or use 'gdb_memory_map disable'.");
return retval;
}
}
target_name(gdb_service->target),
target_state_name(gdb_service->target));
+ /* DANGER! If we fail subsequently, we must remove this handler,
+ * otherwise we occasionally see crashes as the timer can invoke the
+ * callback fn.
+ *
+ * register callback to be informed about target events */
+ target_register_event_callback(gdb_target_callback_event_handler, connection);
+
return ERROR_OK;
}
return ERROR_OK;
}
-static int gdb_target_start(struct target *target, uint16_t port)
+static int gdb_target_start(struct target *target, const char *port)
{
- bool use_pipes = 0 == port;
struct gdb_service *gdb_service = malloc(sizeof(struct gdb_service));
if (NULL == gdb_service)
return -ENOMEM;
gdb_service->target = target;
- add_service("gdb", use_pipes ? CONNECTION_PIPE : CONNECTION_TCP,
+ return add_service("gdb",
port, 1, &gdb_new_connection, &gdb_input,
&gdb_connection_closed, gdb_service);
-
- const char *name = target_name(target);
- if (use_pipes)
- LOG_DEBUG("gdb service for target '%s' using pipes", name);
- else
- LOG_DEBUG("gdb service for target '%s' on TCP port %u", name, port);
- return ERROR_OK;
}
static int gdb_target_add_one(struct target *target)
{
- if (gdb_port == 0 && server_use_pipes == 0)
- {
- LOG_INFO("gdb port disabled");
- return ERROR_OK;
- }
- if (0 == gdb_port_next)
- gdb_port_next = gdb_port;
-
- bool use_pipes = server_use_pipes;
- static bool server_started_with_pipes = false;
- if (server_started_with_pipes)
- {
- LOG_WARNING("gdb service permits one target when using pipes");
- if (0 == gdb_port)
- return ERROR_OK;
-
- use_pipes = false;
- }
-
- int e = gdb_target_start(target, use_pipes ? 0 : gdb_port_next);
- if (ERROR_OK == e)
+ int retval = gdb_target_start(target, gdb_port_next);
+ if (retval == ERROR_OK)
{
- server_started_with_pipes |= use_pipes;
- gdb_port_next++;
+ long portnumber;
+ /* If we can parse the port number
+ * then we increment the port number for the next target.
+ */
+ char *end;
+ portnumber = strtol(gdb_port_next, &end, 0);
+ if (!*end)
+ {
+ if (parse_long(gdb_port_next, &portnumber) == ERROR_OK)
+ {
+ free((void *)gdb_port_next);
+ gdb_port_next = alloc_printf("%d", portnumber+1);
+ }
+ }
}
- return e;
+ return retval;
}
int gdb_target_add_all(struct target *target)
/* daemon configuration command gdb_port */
COMMAND_HANDLER(handle_gdb_port_command)
{
- int retval = CALL_COMMAND_HANDLER(server_port_command, &gdb_port);
- if (ERROR_OK == retval)
- gdb_port_next = gdb_port;
+ int retval = CALL_COMMAND_HANDLER(server_pipe_command, &gdb_port);
+ if (ERROR_OK == retval) {
+ free((void*)gdb_port_next);
+ gdb_port_next = strdup(gdb_port);
+ }
return retval;
}
.name = "gdb_port",
.handler = handle_gdb_port_command,
.mode = COMMAND_ANY,
- .help = "Display or specify base port on which to listen "
- "for incoming GDB connections. "
- "No arguments reports GDB port; zero disables.",
+ .help = "Normally gdb listens to a TCP/IP port. Each subsequent GDB "
+ "server listens for the next port number after the "
+ "base port number specified. "
+ "No arguments reports GDB port. \"pipe\" means listen to stdin "
+ "output to stdout, an integer is base port number, \"disable\" disables "
+ "port. Any other string is are interpreted as named pipe to listen to. "
+ "Output pipe is the same name as input pipe, but with 'o' appended.",
.usage = "[port_num]",
},
{
int gdb_register_commands(struct command_context *cmd_ctx)
{
+ gdb_port = strdup("3333");
+ gdb_port_next = strdup("3333");
return register_commands(cmd_ctx, NULL, gdb_command_handlers);
}
projects / fw / openocd / blobdiff