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c2c1be8d4c
* config/gdbserver.exp (gdb_load): Handle the case
in which the arguments to gdbserver are given in the
baseboard configuration file.
Also handle the case in which the server needs to do a
load.
213 lines
6.4 KiB
Plaintext
213 lines
6.4 KiB
Plaintext
# Test framework for GDB (remote protocol) using a "gdbserver",
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# ie. a debug agent running as a native process on the same or
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# a different host.
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# Copyright 2000 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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# This file was written by Michael Snyder. (msnyder@redhat.com)
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#
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# This module to be used for testing gdb with a "gdbserver"
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# built either from libremote or from gdb/gdbserver.
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#
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# Load the basic testing library, and the remote stuff.
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load_lib ../config/monitor.exp
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#
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# To be addressed or set in your baseboard config file:
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#
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# set_board_info gdb_protocol "remote"
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# Unles you have a gdbserver that uses a different protocol...
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#
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# set_board_info use_gdb_stub 1
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# This tells the rest of the test suite not to do things
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# like "run" which don't work well on remote targets.
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#
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# set_board_info gdb,do_reload_on_run 1
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# Unles you have a gdbserver that can handle multiple sessions.
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#
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# set_board_info noargs 1
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# At present there is no provision in the remote protocol
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# for passing arguments. This test framework does not
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# address the issue, so it's best to set this variable
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# in your baseboard configuration file.
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# FIXME: there's no reason why the test harness couldn't
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# pass commandline args when it spawns gdbserver.
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#
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# set_board_info gdb,noinferiorio 1
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# Neither the traditional gdbserver nor the one in libremote
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# can presently capture stdout and relay it to GDB via the
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# 'O' packet. This means that tests involving printf will
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# fail unles you set this varibale in your baseboard
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# configuration file.
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#
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# set_board_info gdb,no_hardware_watchpoints 1
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# Unles you have a gdbserver that supports hardware watchpoints.
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# FIXME: gdb should detect if the target doesn't support them,
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# and fall back to using software watchpoints.
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#
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# set_board_info gdb_server_prog
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# This will be the path to the gdbserver program you want to test.
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# Defaults to "gdbserver".
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#
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# set_board_info sockethost
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# The name of the host computer whose socket is being used.
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# Defaults to "localhost". Note: old gdbserver requires
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# that you define this, but libremote/gdbserver does not.
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#
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# set_board_info socketport
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# Port id to use for socket connection. If not set explicitly,
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# it will start at "2345" and increment for each use.
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#
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#
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# gdb_load -- load a file into the debugger.
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# return a -1 if anything goes wrong.
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#
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global server_exec;
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global portnum;
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set portnum "2345";
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proc gdb_load { args } {
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global server_exec;
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global portnum;
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global verbose;
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global gdb_prompt;
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# Port id -- either specified in baseboard file, or managed here.
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if [target_info exists gdb,socketport] {
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set portnum [target_info gdb,socketport];
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} else {
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# Bump the port number to avoid conflicts with hung ports.
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incr portnum;
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}
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# Extract the local and remote host ids from the target board struct.
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if [target_info exists sockethost] {
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set debughost [target_info sockethost];
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} else {
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set debughost "localhost:";
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}
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# Extract the protocol
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if [target_info exists gdb_protocol] {
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set protocol [target_info gdb_protocol];
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} else {
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set protocol "remote";
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}
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# Extract the name of the gdbserver, if known (default 'gdbserver').
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if [target_info exists gdb_server_prog] {
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set gdbserver [target_info gdb_server_prog];
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} else {
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set gdbserver "gdbserver";
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}
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# Extract the socket hostname
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if [target_info exists sockethost] {
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set sockethost [target_info sockethost];
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} else {
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set sockethost ""
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}
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# Export the host:port pair.
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set gdbport $debughost$portnum;
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if { $args == "" || $args == "{}" } {
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if [info exists server_exec] {
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set args $server_exec;
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} else {
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send_gdb "info files\n";
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gdb_expect 30 {
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-re "Symbols from \"(\[^\"\]+)\"" {
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set args $expect_out(1,string);
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exp_continue;
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}
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-re "Local exec file:\[\r\n\]+\[ \t\]*`(\[^'\]+)'," {
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set args $expect_out(1,string);
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exp_continue;
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}
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-re "$gdb_prompt $" { }
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}
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}
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}
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# remember new exec file
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set server_exec $args;
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# Fire off the debug agent
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if [target_info exists gdb_server_args] {
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# This flavour of gdbserver takes as arguments those specified
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# in the board configuration file
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set custom_args [target_info gdb_server_args];
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remote_spawn host \
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"$gdbserver $custom_args >& /dev/null < /dev/null &" \
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writeonly
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} else {
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# This flavour of gdbserver takes as arguments the port information
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# and the name of the executable file to be debugged.
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remote_spawn host \
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"$gdbserver $sockethost$portnum $args >& /dev/null < /dev/null &" \
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writeonly
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}
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# Give it a little time to establish
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sleep 2
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# tell gdb what file we are debugging
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if [gdb_file_cmd $args] {
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return -1;
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}
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# attach to the "serial port"
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gdb_target_cmd $protocol $gdbport;
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# do the real load if needed
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if [target_info exists gdb_server_do_load] {
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send_gdb "load\n"
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set timeout 2400
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verbose "Timeout is now $timeout seconds" 2
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gdb_expect {
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-re ".*$gdb_prompt $" {
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if $verbose>1 then {
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send_user "Loaded $arg into $GDB\n"
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}
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set timeout 30
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verbose "Timeout is now $timeout seconds" 2
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return 1
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}
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-re "$gdb_prompt $" {
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if $verbose>1 then {
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perror "GDB couldn't load."
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}
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}
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timeout {
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if $verbose>1 then {
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perror "Timed out trying to load $arg."
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}
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}
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}
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}
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return 0;
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}
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