-# Copyright 2000, 2002, 2003, 2004, 2005, 2006, 2007
-# Free Software Foundation, Inc.
+# Copyright 2000-2013 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
#
# set_board_info gdb_protocol "remote"
# Unles you have a gdbserver that uses a different protocol...
+# After GDB starts you should check global $gdbserver_protocol instead as
+# the testfile may force a specific different target protocol itself.
#
# set_board_info gdb_server_prog
# This will be the path to the gdbserver program you want to test.
# set_board_info gdb,socketport
# Port id to use for socket connection. If not set explicitly,
# it will start at "2345" and increment for each use.
+# After GDB starts you should check global $gdbserver_gdbport for the
+# real port used. It is not useful if $gdbserver_reconnect_p was not set.
#
#
send_gdb "y\n"
exp_continue
}
+ -re "unknown host.*$gdb_prompt" {
+ verbose "Couldn't look up $serialport"
+ }
-re "Couldn't establish connection to remote.*$gdb_prompt $" {
verbose "Connection failed"
}
verbose "Set target to $targetname"
return 0
}
+ -re "Remote debugging using stdio.*$gdb_prompt $" {
+ verbose "Set target to $targetname"
+ return 0
+ }
-re "Remote target $targetname connected to.*$gdb_prompt $" {
verbose "Set target to $targetname"
return 0
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.
+# NOTE: This was named "gdbserver_download", but that collides with the
+# dejagnu "download" API function when using load_generic_config "gdbserver".
-proc gdbserver_spawn { child_args } {
- global portnum
+proc gdbserver_download_current_prog { } {
global gdbserver_host_exec
global gdbserver_host_mtime
global gdbserver_server_exec
}
}
+ return $gdbserver_server_exec
+}
+
+# Default routine to compute the argument to "target remote".
+
+proc gdbserver_default_get_remote_address { host port } {
+ return "$host$port"
+}
+
+# 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:"
}
+ # Some boards use a different value for the port that is passed to
+ # gdbserver and the port that is passed to the "target remote" command.
+ # One example is the stdio gdbserver support.
+ if [target_info exists gdb,get_remote_address] {
+ set get_remote_address [target_info gdb,get_remote_address]
+ } else {
+ set get_remote_address gdbserver_default_get_remote_address
+ }
+
# Extract the protocol
if [target_info exists gdb_protocol] {
set protocol [target_info gdb_protocol]
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 " $child_args"
- }
+ # Loop till we find a free port.
+ while 1 {
+ # Fire off the debug agent.
+ set gdbserver_command "$gdbserver"
+
+ # If gdbserver_reconnect will be called $gdbserver_reconnect_p must be
+ # set to true already during gdbserver_start.
+ global gdbserver_reconnect_p
+ if {![info exists gdbserver_reconnect_p] || !$gdbserver_reconnect_p} {
+ # GDB client could accidentally connect to a stale server.
+ # append gdbserver_command " --debug --once"
+ append gdbserver_command " --once"
+ }
- set server_spawn_id [remote_spawn target $gdbserver_command]
+ if { $options != "" } {
+ append gdbserver_command " $options"
+ }
+ if { $portnum != "" } {
+ append gdbserver_command " :$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
}
}
- return [list $protocol $gdbport]
+ return [list $protocol [$get_remote_address $debughost $portnum]]
+}
+
+# Start a gdbserver process running SERVER_EXEC, and connect GDB
+# to it. CHILD_ARGS are passed to the inferior.
+#
+# Returns the target protocol and socket to connect to.
+
+proc gdbserver_spawn { child_args } {
+ set target_exec [gdbserver_download_current_prog]
+
+ # Fire off the debug agent. This flavour of gdbserver takes as
+ # arguments the port information, the name of the executable file to
+ # be debugged, and any arguments.
+ set arguments "$target_exec"
+ if { $child_args != "" } {
+ append arguments " $child_args"
+ }
+ return [gdbserver_start "" $arguments]
}
# Start a gdbserver process running HOST_EXEC and pass CHILD_ARGS
global gdbserver_protocol
global gdbserver_gdbport
+ global gdbserver_reconnect_p;
+ if {![info exists gdbserver_reconnect_p] || !$gdbserver_reconnect_p} {
+ error "gdbserver_reconnect_p is not set before gdbserver_reconnect"
+ return 0
+ }
+
+ return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
+}
+
+# Start and connect to a gdbserver in extended mode. Note this frobs
+# $gdbserver_protocol, so should be used only from a board that
+# usually connects in target remote mode.
+proc gdbserver_start_extended { } {
+ global gdbserver_protocol
+ global gdbserver_gdbport
+ global use_gdb_stub
+
+ set res [gdbserver_start "--multi" ""]
+ set gdbserver_protocol [lindex $res 0]
+ if { [string first "extended-" $gdbserver_protocol] != 0} {
+ set gdbserver_protocol "extended-$gdbserver_protocol"
+ }
+ set gdbserver_gdbport [lindex $res 1]
+
+ # Even if the board file is testing with target remote, our caller
+ # wants to test against gdbserver in extended-remote mode. Make sure to
+ # disable stub-like techniques.
+ set use_gdb_stub 0
+
+ return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
+}
+
+# Start and connect to a gdbserver in extended/multi mode. Unlike
+# gdbserver_start_extended, this does not frob $gdbserver_protocol.
+
+proc gdbserver_start_multi { } {
+ global gdbserver_protocol
+ global gdbserver_gdbport
+
+ set res [gdbserver_start "--multi" ""]
+ set gdbserver_protocol [lindex $res 0]
+ set gdbserver_gdbport [lindex $res 1]
+
return [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
}
+
+# Start a gdbserver process in multi/extended mode, and have GDB
+# connect to it (MI version). Return 0 on success, or non-zero on
+# failure.
+
+proc mi_gdbserver_start_multi { } {
+ global gdbserver_protocol
+ global gdbserver_gdbport
+
+ set res [gdbserver_start "--multi" ""]
+ set gdbserver_protocol [lindex $res 0]
+ set gdbserver_gdbport [lindex $res 1]
+
+ return [mi_gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
+}
projects / thirdparty / binutils-gdb.git / blobdiff