-# Copyright 2000, 2002, 2003, 2004, 2005, 2006, 2007
+# Copyright 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
# Free Software Foundation, Inc.
# 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
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
-#
+#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
-#
+#
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This file is based on config/gdbserver.exp, which was written by
# Michael Snyder (msnyder@redhat.com).
send_gdb "y\n"
exp_continue
}
+ -re "unknown host.*$gdb_prompt" {
+ verbose "Couldn't look up $serialport"
+ }
-re "Couldn't establish connection to remote.*$gdb_prompt $" {
verbose "Connection failed"
}
proc find_gdbserver { } {
global GDB
+ global GDBSERVER
+
+ if [info exists GDBSERVER] {
+ return ${GDBSERVER}
+ }
if [target_info exists gdb_server_prog] {
return [target_info gdb_server_prog]
return 0
}
-# Start a gdbserver process running SERVER_EXEC, and connect GDB
-# to it. CHILD_ARGS are passed to the inferior.
-#
-# Returns the target protocol and socket to connect to.
+# Download the currently loaded program to the target if necessary.
+# Return the target system filename.
-proc gdbserver_spawn { child_args } {
- global portnum
+proc gdbserver_download { } {
global gdbserver_host_exec
global gdbserver_host_mtime
global gdbserver_server_exec
}
}
+ return $gdbserver_server_exec
+}
+
+# Start a gdbserver process with initial OPTIONS and trailing ARGUMENTS.
+# The port will be filled in between them automatically.
+#
+# Returns the target protocol and socket to connect to.
+
+proc gdbserver_start { options arguments } {
+ global portnum
+
# Port id -- either specified in baseboard file, or managed here.
if [target_info exists gdb,socketport] {
set portnum [target_info gdb,socketport]
# Extract the local and remote host ids from the target board struct.
if [target_info exists sockethost] {
- set debughost [target_info sockethost]
+ set debughost [target_info sockethost]
} else {
set debughost "localhost:"
}
set gdbserver [find_gdbserver]
- # Export the host:port pair.
- set gdbport $debughost$portnum
-
- # Fire off the debug agent. This flavour of gdbserver takes as
- # arguments the port information, the name of the executable file to
- # be debugged, and any arguments.
- set gdbserver_command "$gdbserver :$portnum $gdbserver_server_exec"
- if { $child_args != "" } {
- append gdbserver_command " $child_args"
- }
+ # Loop till we find a free port.
+ while 1 {
+ # Export the host:port pair.
+ set gdbport $debughost$portnum
- set server_spawn_id [remote_spawn target $gdbserver_command]
+ # Fire off the debug agent.
+ set gdbserver_command "$gdbserver"
+ if { $options != "" } {
+ append gdbserver_command " $options"
+ }
+ append gdbserver_command " :$portnum"
+ if { $arguments != "" } {
+ append gdbserver_command " $arguments"
+ }
- # Wait for the server to produce at least one line and an additional
- # character of output. This will wait until any TCP socket has been
- # created, so that GDB can connect.
- expect {
- -i $server_spawn_id
- -notransfer
- -re ".*\n." { }
+ set server_spawn_id [remote_spawn target $gdbserver_command]
+
+ # Wait for the server to open its TCP socket, so that GDB can connect.
+ expect {
+ -i $server_spawn_id
+ -notransfer
+ -re "Listening on" { }
+ -re "Can't bind address: Address already in use\\.\r\n" {
+ verbose -log "Port $portnum is already in use."
+ if ![target_info exists gdb,socketport] {
+ # Bump the port number to avoid the conflict.
+ wait -i $expect_out(spawn_id)
+ incr portnum
+ continue
+ }
+ }
+ }
+ break
}
# We can't just call close, because if gdbserver is local then that means
# don't need to redirect output.
expect_background {
-i $server_spawn_id
- -re "." { }
+ full_buffer { }
eof {
# The spawn ID is already closed now (but not yet waited for).
wait -i $expect_out(spawn_id)
return [list $protocol $gdbport]
}
+# Start a gdbserver process running SERVER_EXEC, and connect GDB
+# to it. CHILD_ARGS are passed to the inferior.
+#
+# Returns the target protocol and socket to connect to.
+
+proc gdbserver_spawn { child_args } {
+ set target_exec [gdbserver_download]
+
+ # Fire off the debug agent. This flavour of gdbserver takes as
+ # arguments the port information, the name of the executable file to
+ # be debugged, and any arguments.
+ set arguments "$target_exec"
+ if { $child_args != "" } {
+ append arguments " $child_args"
+ }
+ return [gdbserver_start "" $arguments]
+}
+
# Start a gdbserver process running HOST_EXEC and pass CHILD_ARGS
# to it. Return 0 on success, or non-zero on failure.
proc gdbserver_run { child_args } {
+ global gdbserver_protocol
+ global gdbserver_gdbport
+
+ # Kill anything running before we try to start gdbserver, in case
+ # we are sharing a serial connection.
+ global gdb_prompt
+ send_gdb "kill\n"
+ gdb_expect 120 {
+ -re "Kill the program being debugged. .y or n. $" {
+ send_gdb "y\n"
+ verbose "\t\tKilling previous program being debugged"
+ exp_continue
+ }
+ -re "$gdb_prompt $" {
+ # OK.
+ }
+ }
+
set res [gdbserver_spawn $child_args]
- set protocol [lindex $res 0]
- set gdbport [lindex $res 1]
+ set gdbserver_protocol [lindex $res 0]
+ set gdbserver_gdbport [lindex $res 1]
+
+ return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
+}
+
+# Reconnect to the previous gdbserver session.
+
+proc gdbserver_reconnect { } {
+ global gdbserver_protocol
+ global gdbserver_gdbport
+
+ return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
+}
+
+# Start and connect to a gdbserver in extended mode.
+proc gdbserver_start_extended { } {
+ set res [gdbserver_start "--multi" ""]
+ set gdbserver_protocol "extended-[lindex $res 0]"
+ set gdbserver_gdbport [lindex $res 1]
- return [gdb_target_cmd $protocol $gdbport]
+ return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
}
projects / deliverable / binutils-gdb.git / blobdiff