2000-10-19 Michael Snyder <msnyder@cleaver.cygnus.com>
* config/gdbserver.exp: Rewritten from the ground up, to make it
compatible with the current dejagnu tree, and to make it work with
the new "gdbserver" in libremote.
This commit is contained in:
Michael Snyder
parent
d1d8dddfbd
commit
ae0323a862
@ -1,3 +1,9 @@
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2000-10-19 Michael Snyder <msnyder@cleaver.cygnus.com>
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* config/gdbserver.exp: Rewritten from the ground up, to make it
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compatible with the current dejagnu tree, and to make it work with
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the new "gdbserver" in libremote.
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2000-10-16 Michael Snyder <msnyder@cleaver.cygnus.com>
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* gdb.base/sizeof.exp (check_sizeof): Skip if no printf support.
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@ -1,6 +1,9 @@
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# Test Framework Driver for GDB using the extended gdb remote protocol
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# Copyright 1995, 1997 Free Software Foundation, Inc.
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#
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# 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 (C) 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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@ -14,91 +17,158 @@
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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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# For this to function correctly, you need to set a number of variables
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# in your gdb/site.exp file
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#
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# set noargs 1 -- we can't pass arguments (yet)
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# set noinferiorio 1 -- we can't get io to/from the inferior
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# set targethost <host> -- name of the remote system (runs gdbserver)
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# set debughost <host> -- name of the system running gdb
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# set port <number> -- starting port number for communication
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# set gdbserver <path> -- path (on the remote side) to find
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# gdbserver
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# set rsh <path> -- path (on debughost side) to rsh
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# set rcp <path> -- path (on debughost side) to rcp
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#
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# You will need to be able to spawn processes from gdbhost to run on
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# targethost via rsh (this is how we start gdbserver); similarly
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# you need to be able to rcp files from gdbhost to targethost.
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#
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# We don't do much error checking, if something goes wrong, you'll probably
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# just get a tcl error and everything will die. FIXME
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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 gdb testing library
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load_lib gdb.exp
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load_lib monitor.exp
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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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# Loading a file in the gdbsrever framework is a little strange in that
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# we also create the inferior (which is stopped at the first instruction
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# in the program when we get control).
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#
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proc gdb_load { arg } {
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global verbose
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global loadpath
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global loadfile
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global GDB
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global gdb_prompt
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global debughost
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global port
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# bump the port number to avoid conflicts with hung ports
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set targethost [target_info gdb_server_host];
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set debughost [target_info gdb_debug_host];
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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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# 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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incr port
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set serialport $targethost:$port
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# Copy the file down to the remote host.
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set file [remote_download host $arg];
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# Extract the socket hostname
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if [target_info exists sockethost] {
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set sockethost [target_info sockethost];
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} else {
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set sockethost ""
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}
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# now start gdbserver on the remote side
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remote_spawn host "$gdbserver $debughost:$port $file >& /dev/null < /dev/null"
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# give it plenty of time to get going (lynx)
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sleep 30
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# Export the host:port pair.
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set gdbport $debughost$portnum;
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# tell gdb we are remote debugging
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if [gdb_target_monitor $arg] {
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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 $args;
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# Fire off the debug agent
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remote_spawn host \
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"$gdbserver $sockethost$portnum $args >& /dev/null < /dev/null &" \
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writeonly
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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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return 1
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# attach to the "serial port"
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gdb_target_cmd $protocol $gdbport;
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return 0;
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}
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#
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# gdb_start -- start GDB running.
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#
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proc gdb_start { } {
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global gdb_prompt
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# do the usual stuff
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catch default_gdb_start
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# FIXME: This shouldn't be necessary, but lots of PA tests fail
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# without it.
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send "set remotecache 0\n"
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expect {
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-re "set remotecache 0\[\r\n\]+.*$gdb_prompt $" {}
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default { fail "gdb_start"}
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}
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}
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