| # Test framework for GDB (remote protocol) using a "gdbserver", |
| # ie. a debug agent running as a native process on the same or |
| # a different host. |
| |
| # Copyright 2000, 2002 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. |
| |
| # Please email any bugs, comments, and/or additions to this file to: |
| # bug-gdb@prep.ai.mit.edu |
| |
| # This file was written by Michael Snyder. (msnyder@redhat.com) |
| |
| # |
| # This module to be used for testing gdb with a "gdbserver" |
| # built either from libremote or from gdb/gdbserver. |
| # |
| |
| # Load the basic testing library, and the remote stuff. |
| load_lib ../config/monitor.exp |
| |
| # |
| # 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 use_gdb_stub 1 |
| # This tells the rest of the test suite not to do things |
| # like "run" which don't work well on remote targets. |
| # |
| # set_board_info gdb,do_reload_on_run 1 |
| # Unles you have a gdbserver that can handle multiple sessions. |
| # |
| # set_board_info noargs 1 |
| # At present there is no provision in the remote protocol |
| # for passing arguments. This test framework does not |
| # address the issue, so it's best to set this variable |
| # in your baseboard configuration file. |
| # FIXME: there's no reason why the test harness couldn't |
| # pass commandline args when it spawns gdbserver. |
| # |
| # set_board_info gdb,noinferiorio 1 |
| # Neither the traditional gdbserver nor the one in libremote |
| # can presently capture stdout and relay it to GDB via the |
| # 'O' packet. This means that tests involving printf will |
| # fail unles you set this varibale in your baseboard |
| # configuration file. |
| # |
| # set_board_info gdb,no_hardware_watchpoints 1 |
| # Unles you have a gdbserver that supports hardware watchpoints. |
| # FIXME: gdb should detect if the target doesn't support them, |
| # and fall back to using software watchpoints. |
| # |
| # 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 socketport |
| # Port id to use for socket connection. If not set explicitly, |
| # it will start at "2345" and increment for each use. |
| # |
| |
| |
| |
| # |
| # gdb_load -- load a file into the debugger. |
| # return a -1 if anything goes wrong. |
| # |
| |
| global server_exec; |
| global portnum; |
| set portnum "2345"; |
| |
| proc gdb_load { arg } { |
| global host_exec; |
| global server_exec; |
| global portnum; |
| global verbose; |
| global gdb_prompt; |
| |
| # 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"; |
| } |
| |
| # Extract the name of the gdbserver, if known (default 'gdbserver'). |
| if [target_info exists gdb_server_prog] { |
| set gdbserver [target_info gdb_server_prog]; |
| } else { |
| set gdbserver "gdbserver"; |
| } |
| # Extract the socket hostname |
| if [target_info exists sockethost] { |
| set sockethost [target_info sockethost]; |
| } else { |
| set sockethost "" |
| } |
| |
| # Export the host:port pair. |
| set gdbport $debughost$portnum; |
| |
| # Remember new exec file. |
| if { $arg == "" } { |
| if { ! [info exists 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 $" { } |
| } |
| } |
| } else { |
| set host_exec $arg |
| if [info exists server_exec] { unset server_exec } |
| } |
| |
| if { ! [info exists server_exec] } { |
| if [is_remote target] { |
| set server_exec [remote_download target $host_exec] |
| } else { |
| set server_exec $host_exec |
| } |
| } |
| |
| # Fire off the debug agent |
| if [target_info exists gdb_server_args] { |
| # This flavour of gdbserver takes as arguments those specified |
| # in the board configuration file |
| set custom_args [target_info gdb_server_args]; |
| set server_spawn_id [remote_spawn target \ |
| "$gdbserver $custom_args"] |
| } else { |
| # This flavour of gdbserver takes as arguments the port information |
| # and the name of the executable file to be debugged. |
| set server_spawn_id [remote_spawn target \ |
| "$gdbserver $sockethost$portnum $server_exec"] |
| } |
| |
| # We can't call close, because if gdbserver is local then that means |
| # that it will get a SIGHUP. |
| ## close -i $server_spawn_id |
| wait -nowait -i $server_spawn_id |
| |
| # Give it a little time to establish |
| sleep 1 |
| |
| # tell gdb what file we are debugging |
| if { $arg != "" } { |
| if [gdb_file_cmd $arg] { |
| return -1; |
| } |
| } |
| |
| # attach to the "serial port" |
| gdb_target_cmd $protocol $gdbport; |
| |
| # do the real load if needed |
| if [target_info exists gdb_server_do_load] { |
| send_gdb "load\n" |
| set timeout 2400 |
| verbose "Timeout is now $timeout seconds" 2 |
| gdb_expect { |
| -re ".*$gdb_prompt $" { |
| if $verbose>1 then { |
| send_user "Loaded $arg into $GDB\n" |
| } |
| set timeout 30 |
| verbose "Timeout is now $timeout seconds" 2 |
| return 1 |
| } |
| -re "$gdb_prompt $" { |
| if $verbose>1 then { |
| perror "GDB couldn't load." |
| } |
| } |
| timeout { |
| if $verbose>1 then { |
| perror "Timed out trying to load $arg." |
| } |
| } |
| } |
| } |
| |
| return 0; |
| } |