246 lines
6.2 KiB
Text
246 lines
6.2 KiB
Text
# Copyright (C) 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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# Please email any bugs, comments, and/or additions to this file to:
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# DejaGnu@cygnus.com
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# This file was written by Ian Lance Taylor <ian@cygnus.com>.
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# GDB support routines for a board using the MIPS remote debugging
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# protocol. These are actually pretty generic.
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# DejaGnu currently assumes that debugging is being done over the main
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# console port. It would probably be more convenient for people using
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# IDT boards to permit the debugging port and the connected port to be
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# different, since an IDT board has two ports. This would require
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# extending some of the tests in a fashion similar to that done for
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# VxWorks, because the test output would appear on the other port,
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# rather than being displayed by gdb.
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set prompt "\(gdb\)"
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load_lib remote.exp
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load_lib gdb.exp
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#
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# gdb_version -- extract and print the version number of gdb
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#
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proc gdb_version {} {
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global GDB
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global GDBFLAGS
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global prompt
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set tmp [exec echo "q" | $GDB]
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set version [lindex $tmp [lsearch $tmp "\[0-9\]*"]]
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set version [string range $version 0 [expr [string length $version]-2]]
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clone_output "[which $GDB] version $version $GDBFLAGS\n"
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}
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#
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# gdb_load -- load a file into the GDB.
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# Returns a 0 if there was an error,
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# 1 if it load successfully.
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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 prompt
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global spawn_id
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global GDB
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global expect_out
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set loadfile [file tail $arg]
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set loadpath [file dirname $arg]
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gdb_unload
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send "file $arg\n"
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expect {
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-re "A program is being debugged already. Kill it\? \(y or n\)" {
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send "y\n"
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continue -expect
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}
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-re "Reading symbols from.*done..*$prompt $" { }
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-re "$prompt $" { error "GDB couldn't read file" }
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timeout { error "(timeout) read symbol file" ; return }
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}
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send "load $arg\n"
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if $verbose>1 then {
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send_user "Loading $arg into $GDB\n"
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}
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set timeout 1200
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expect {
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-re "Loading.*$prompt $" {
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if $verbose>1 then {
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send_user "Loaded $arg into $GDB\n"
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}
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set timeout 30
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return 1
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}
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-re "$prompt $" {
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if $verbose>1 then {
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error "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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error "Timed out trying to load $arg."
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}
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}
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}
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set timeout 10
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if [info exists expect_out(buffer)] then {
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send_log $expect_out(buffer)
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}
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return 0
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}
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#
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# gdb_exit -- exit the GDB
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#
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proc gdb_exit {} {
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global GDB
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global GDBFLAGS
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global verbose
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set timeout 5
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send "quit\n"
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expect {
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eof {
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if $verbose>1 then {
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send_user "Got EOF from $GDB\n"
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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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send_user "Got TIMEOUT from $GDB\n"
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}
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}
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-re "The program is running. Quit anyway.*? (y or n) $" {
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send "y\n"
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if $verbose>1 then {
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send_user "\t\tKilling program being debugged\n"
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}
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}
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}
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if $verbose>1 then {
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send_user "Quitting $GDB $GDBFLAGS\n"
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}
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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
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global GDBFLAGS
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global spawn_id
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global shell_id
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global prompt
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global verbose
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global targetname
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global connectmode
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global reboot
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global baud
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# reboot the board to get a clean start
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if $reboot then {
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if ![info exists connectmode] then {
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set connectmode "kermit"
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}
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if ![info exists baud] then {
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set baud 9600
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}
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set shell_id [ eval $connectmode "$targetname" $baud ]
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send -i $shell_id "\CC"
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expect -i $shell_id {
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-re "<IDT>$" { }
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timeout { error "(timeout) board did not come up."; return -1 }
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}
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send -i $shell_id "go 0xbfc00000"
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expect -i $shell_id {
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-re "<IDT>$" { }
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timeout { error "(timeout) board did not come up."; return -1 }
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}
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exit_remote_shell $shell_id
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}
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set GDB [which $GDB]
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# start GDB
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if [ llength $GDBFLAGS ] then {
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spawn $GDB $GDBFLAGS
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} else {
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spawn $GDB
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}
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expect {
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-re "GDB.*$prompt $" {
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if $verbose>1 then {
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send_user "$GDB initialized for cross mode\n\n"
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}
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}
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-re "$prompt $" { error "GDB never initialized."; return -1 }
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timeout { error "(timeout) GDB never initialized.";
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return -1 }
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}
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# force the height to "unlimited", so no pagers get used
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send "set height 0\n"
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expect -re ".*$prompt $" {}
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# force the width to "unlimited", so no wraparound occurs
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send "set width 0\n"
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expect -re ".*$prompt $" {}
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# Don't use floating point instructions, in case the board doesn't
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# support them.
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send "set mipsfpu off\n"
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expect -re ".*$prompt $" {}
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if $verbose>1 then {
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send_user "Setting up target, please wait...\n"
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}
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send "target mips $targetname\n"
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set timeout 60
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expect {
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-re "Remote MIPS debugging.*$prompt $" {
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if $verbose>1 then {
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send_user "Set target to $targetname\n"
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}
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}
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timeout {
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error "Couldn't set MIPS target."
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set timeout 10
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return -1
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}
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}
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set timeout 10
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}
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expect_after {
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"<return>" { send "\n"; error "Window too small." }
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-re "\(y or n\) " { send "n\n"; error "Got interactive prompt." }
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buffer_full { error "internal buffer is full." }
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eof { error "eof -- pty is hosed." }
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timeout { error "timeout." }
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"virtual memory exhausted" { error "virtual memory exhausted." }
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"Undefined command" { error "send string probably wrong." }
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}
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gdb_start
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# make sure gdb has actually started, otherwise if the first test
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# timesout, DejaGnu crashes
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send "\n"
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expect {
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-re "$prompt"
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}
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