294 lines
6.8 KiB
Text
294 lines
6.8 KiB
Text
# Copyright (C) 1988, 1990, 1991, 1992 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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# bug-gdb@prep.ai.mit.edu
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# This file was written by Rob Savoye. (rob@cygnus.com)
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# variables that need to set up
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#
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if ![info exists prompt] then {
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set prompt "\(gdb\)"
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}
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# some convenience abbreviations
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#
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if ![info exists hex] then {
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set hex "0x\[0-9A-Fa-f\]+"
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}
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if ![info exists decimal] then {
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set decimal "\[0-9\]+"
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}
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#
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# gdb_version -- extract and print the version number of gcc
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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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if {[which $GDB] != 0} then {
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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 $GDBFLAGS\n"
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} else {
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warning "$GDB does not exist"
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}
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}
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#
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# gdb_unload -- unload a file if one is loaded
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#
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proc gdb_unload {} {
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global verbose
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global GDB
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global prompt
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send "file\n"
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expect {
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-re "No exec file now\.\r" { continue -expect }
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-re "No symbol file now\.\r" { continue -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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if $verbose>1 then {
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send_user "\t\tKilling previous program being debugged\n"
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}
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continue -expect
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}
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-re "Discard symbol table from .*\? \(y or n\) $" {
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send "y\n"
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continue -expect
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}
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-re "$prompt $" {}
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timeout {
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error "Couldn't unload file in $GDB (timed out)."
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return -1
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}
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}
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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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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 prompt
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set loadfile [file tail $arg]
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set loadpath [file dirname $arg]
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send "file $arg\n"
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expect {
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-re "Reading symbols from.*done.*$prompt $" {
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if $verbose>1 then {
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send_user "\t\tLoaded $arg into the $GDB\n"
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}
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return 0
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}
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-re "has no symbol-table.*$prompt $" {
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error "$arg wasn't compiled with \"-g\""
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return -1
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}
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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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if $verbose>1 then {
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send_user "\t\tKilling previous program being debugged\n"
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}
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continue -expect
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}
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-re "Load new symbol table from.*\? \(y or n\) $" {
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send "y\n"
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expect {
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-re "Reading symbols from.*done.*$prompt $" {
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if $verbose>1 then {
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send_user "\t\tLoaded $arg with new symbol table into $GDB\n"
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}
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return 0
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}
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timeout {
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error "(timeout) Couldn't load $arg, other program already loaded."
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return -1
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}
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}
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}
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-re ".*No such file or directory.*$prompt $" {
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error "($arg) No such file or directory\n"
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return -1
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}
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-re "$prompt $" {
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error "couldn't load $arg into $GDB."
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return -1
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}
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timeout {
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error "couldn't load $arg into $GDB (timed out)."
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return -1
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}
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}
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}
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#
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# gdb_exit -- kills the gdb process currently running
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#
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proc gdb_exit {} {
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global verbose
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global GDB
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global GDBFLAGS
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set timeout 1
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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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catch "send \"quit\n\"" result
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if [string match "write\(spawn_id=\[0-9\]+\):" $result] then {
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catch "close"
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return -1
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}
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catch {
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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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close
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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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close
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}
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}
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}
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catch "close"
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# Before this was here sometimes "uit" would get sent to the next GDB
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# (assuming this is immediately followed by gdb_start), which would
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# cause a loss of syncronization (i.e. all the stuff that swallows a
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# prompt would swallow the wrong one).
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wait
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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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# start gdb -- start gdb running
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#
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proc gdb_start {} {
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global verbose
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global GDB
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global GDBFLAGS
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global prompt
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global spawn_id
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global timeout
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if $verbose>1 then {
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send_user "Spawning $GDB $GDBFLAGS\n"
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}
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set oldtimeout $timeout
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set timeout [expr "$timeout + 60"]
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if [ llength $GDBFLAGS ] then {
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if {[which $GDB] != 0} then {
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spawn $GDB $GDBFLAGS
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} else {
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error "$GDB does not exist."
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exit 1
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}
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} else {
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IF {[WHICH $GDB] != 0} then {
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spawn $GDB
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} else {
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error "$GDB does not exist."
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exit 1
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}
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}
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expect {
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-re ".*$prompt $" {
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if $verbose>1 then {
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send_user "GDB initialized for native mode\n"
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}
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}
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-re "$prompt $" {
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error "GDB never initialized."
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return -1
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}
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timeout {
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error "(timeout) GDB never initialized."
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return -1
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}
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}
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set timeout $oldtimeout
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# force the height to "unlimited", so no pagers get used
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send "set height 0\n"
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expect {
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-re ".*$prompt $" {
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if $verbose>2 then {
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send_user "Seting height to 0.\n"
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}
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}
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timeout {
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warning "Couldn't set the height to 0."
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}
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}
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# force the width to "unlimited", so no wraparound occurs
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send "set width 0\n"
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expect {
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-re ".*$prompt $" {
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if $verbose>2 then {
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send_user "Seting width to 0.\n"
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}
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}
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timeout {
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warning "Couldn't set the width to 0."
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}
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}
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}
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# These only need to be uncommented for debugging test cases. They exist
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# mainly to catch programming errors
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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 -- there is no child process" ; alldone}
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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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load_lib gdb.exp
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set binpath /s1/users/rob/vxworks/bin/somewhere-bogus-that-needs-configuring
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set bin $GDB
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gdb_start
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