251 lines
6.8 KiB
Text
251 lines
6.8 KiB
Text
# Copyright 2000, 2002, 2003, 2004, 2005, 2006, 2007
|
||
# 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
|
||
# (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.
|
||
|
||
# This file is based on config/gdbserver.exp, which was written by
|
||
# Michael Snyder (msnyder@redhat.com).
|
||
|
||
#
|
||
# To be addressed or set in your baseboard config file:
|
||
#
|
||
# set_board_info gdb_protocol "remote"
|
||
# Unles you have a gdbserver that uses a different protocol...
|
||
#
|
||
# set_board_info gdb_server_prog
|
||
# This will be the path to the gdbserver program you want to test.
|
||
# Defaults to "gdbserver".
|
||
#
|
||
# set_board_info sockethost
|
||
# The name of the host computer whose socket is being used.
|
||
# Defaults to "localhost". Note: old gdbserver requires
|
||
# that you define this, but libremote/gdbserver does not.
|
||
#
|
||
# 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.
|
||
#
|
||
|
||
#
|
||
# gdb_target_cmd
|
||
# Send gdb the "target" command
|
||
#
|
||
proc gdb_target_cmd { targetname serialport } {
|
||
global gdb_prompt
|
||
|
||
for {set i 1} {$i <= 3} {incr i} {
|
||
send_gdb "target $targetname $serialport\n"
|
||
gdb_expect 60 {
|
||
-re "A program is being debugged already.*ill it.*y or n. $" {
|
||
send_gdb "y\n"
|
||
exp_continue
|
||
}
|
||
-re "Couldn't establish connection to remote.*$gdb_prompt $" {
|
||
verbose "Connection failed"
|
||
}
|
||
-re "Remote MIPS debugging.*$gdb_prompt" {
|
||
verbose "Set target to $targetname"
|
||
return 0
|
||
}
|
||
-re "Remote debugging using .*$serialport.*$gdb_prompt $" {
|
||
verbose "Set target to $targetname"
|
||
return 0
|
||
}
|
||
-re "Remote target $targetname connected to.*$gdb_prompt $" {
|
||
verbose "Set target to $targetname"
|
||
return 0
|
||
}
|
||
-re "Connected to.*$gdb_prompt $" {
|
||
verbose "Set target to $targetname"
|
||
return 0
|
||
}
|
||
-re "Ending remote.*$gdb_prompt $" { }
|
||
-re "Connection refused.*$gdb_prompt $" {
|
||
verbose "Connection refused by remote target. Pausing, and trying again."
|
||
sleep 30
|
||
continue
|
||
}
|
||
-re "Timeout reading from remote system.*$gdb_prompt $" {
|
||
verbose "Got timeout error from gdb."
|
||
}
|
||
timeout {
|
||
send_gdb ""
|
||
break
|
||
}
|
||
}
|
||
}
|
||
return 1
|
||
}
|
||
|
||
|
||
global portnum
|
||
set portnum "2345"
|
||
|
||
# Locate the gdbserver binary. Returns "" if gdbserver could not be found.
|
||
|
||
proc find_gdbserver { } {
|
||
global GDB
|
||
|
||
if [target_info exists gdb_server_prog] {
|
||
return [target_info gdb_server_prog]
|
||
}
|
||
|
||
set gdbserver "${GDB}server"
|
||
if { [file isdirectory $gdbserver] } {
|
||
append gdbserver "/gdbserver"
|
||
}
|
||
|
||
if { [file executable $gdbserver] } {
|
||
return $gdbserver
|
||
}
|
||
|
||
return ""
|
||
}
|
||
|
||
# Return non-zero if we should skip gdbserver-specific tests.
|
||
|
||
proc skip_gdbserver_tests { } {
|
||
if { [find_gdbserver] == "" } {
|
||
return 1
|
||
}
|
||
|
||
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.
|
||
|
||
proc gdbserver_spawn { server_exec child_args } {
|
||
global portnum
|
||
|
||
# Port id -- either specified in baseboard file, or managed here.
|
||
if [target_info exists gdb,socketport] {
|
||
set portnum [target_info gdb,socketport]
|
||
} else {
|
||
# Bump the port number to avoid conflicts with hung ports.
|
||
incr portnum
|
||
}
|
||
|
||
# Extract the local and remote host ids from the target board struct.
|
||
if [target_info exists sockethost] {
|
||
set debughost [target_info sockethost]
|
||
} else {
|
||
set debughost "localhost:"
|
||
}
|
||
|
||
# Extract the protocol
|
||
if [target_info exists gdb_protocol] {
|
||
set protocol [target_info gdb_protocol]
|
||
} else {
|
||
set protocol "remote"
|
||
}
|
||
|
||
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 $server_exec"
|
||
if { $child_args != "" } {
|
||
append gdbserver_command " $child_args"
|
||
}
|
||
|
||
set server_spawn_id [remote_spawn target $gdbserver_command]
|
||
|
||
# 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." { }
|
||
}
|
||
|
||
# We can't just call close, because if gdbserver is local then that means
|
||
# that it will get a SIGHUP. Doing it this way could also allow us to
|
||
# get at the inferior's input or output if necessary, and means that we
|
||
# don't need to redirect output.
|
||
expect_background {
|
||
-i $server_spawn_id
|
||
-re "." { }
|
||
eof {
|
||
# The spawn ID is already closed now (but not yet waited for).
|
||
wait -i $expect_out(spawn_id)
|
||
}
|
||
}
|
||
|
||
return [list $protocol $gdbport]
|
||
}
|
||
|
||
proc infer_host_exec { } {
|
||
set host_exec ""
|
||
|
||
send_gdb "info files\n"
|
||
gdb_expect 30 {
|
||
-re "Symbols from \"(\[^\"\]+)\"" {
|
||
set host_exec $expect_out(1,string)
|
||
exp_continue
|
||
}
|
||
-re "Local exec file:\[\r\n\]+\[ \t\]*`(\[^'\]+)'," {
|
||
set host_exec $expect_out(1,string)
|
||
exp_continue
|
||
}
|
||
-re "$gdb_prompt $" { }
|
||
}
|
||
|
||
return $host_exec
|
||
}
|
||
|
||
# Start a gdbserver process running HOST_EXEC and pass CHILD_ARGS
|
||
# to it. Return 0 on success, or non-zero on failure.
|
||
|
||
proc gdbserver_load { host_exec child_args } {
|
||
global gdbserver_host_exec
|
||
global gdbserver_server_exec
|
||
|
||
# If we weren't passed an explicit binary, try to reuse the current
|
||
# one. If we were, be sure to redownload it.
|
||
|
||
if { $host_exec == "" && $gdbserver_host_exec == "" } {
|
||
set gdbserver_host_exec [infer_host_exec]
|
||
} elseif { $host_exec != "" } {
|
||
set gdbserver_host_exec $host_exec
|
||
if [info exists gdbserver_server_exec] { unset gdbserver_server_exec }
|
||
}
|
||
|
||
if { ! [info exists gdbserver_server_exec] } {
|
||
if [is_remote target] {
|
||
set gdbserver_server_exec [remote_download target $host_exec /tmp/[file tail $gdbserver_host_exec].[pid]]
|
||
} else {
|
||
set gdbserver_server_exec $gdbserver_host_exec
|
||
}
|
||
}
|
||
|
||
set res [gdbserver_spawn $gdbserver_server_exec $child_args]
|
||
set protocol [lindex $res 0]
|
||
set gdbport [lindex $res 1]
|
||
|
||
if { $host_exec != "" } {
|
||
if [gdb_file_cmd $host_exec] {
|
||
return -1
|
||
}
|
||
}
|
||
gdb_target_cmd $protocol $gdbport
|
||
}
|