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- # Copyright (C) 1988, 1990, 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- # Please email any bugs, comments, and/or additions to this file to:
- # bug-gdb@prep.ai.mit.edu
-
- # This file was written by Rob Savoye. (rob@cygnus.com)
-
- # variables that need to set up
- #
- if ![info exists prompt] then {
- set prompt "\(gdb\)"
- }
- # some convenience abbreviations
- #
- if ![info exists hex] then {
- set hex "0x\[0-9A-Fa-f\]+"
- }
- if ![info exists decimal] then {
- set decimal "\[0-9\]+"
- }
-
- #
- # gdb_version -- extract and print the version number of gcc
- #
- proc gdb_version {} {
- global GDB
- global GDBFLAGS
- if {[which $GDB] != 0} then {
- set tmp [exec echo "q" | $GDB]
- set version "[lindex $tmp [lsearch $tmp "\[0-9\]*"]]"
- set version "[string range $version 0 [expr [string length $version]-2]]"
- clone_output "[which $GDB] version $version $GDBFLAGS\n"
- } else {
- warning "$GDB does not exist"
- }
- }
-
- #
- # gdb_unload -- unload a file if one is loaded
- #
-
- proc gdb_unload {} {
- global verbose
- global GDB
- global prompt
- send "file\n"
- expect {
- -re "No exec file now\.\r" { continue -expect }
- -re "No symbol file now\.\r" { continue -expect }
- -re "A program is being debugged already..*Kill it\? \(y or n\) $"\
- { send "y\n"
- if $verbose>1 then {
- send_user "\t\tKilling previous program being debugged\n"
- }
- continue -expect
- }
- -re "Discard symbol table from .*\? \(y or n\) $" {
- send "y\n"
- continue -expect
- }
- -re "$prompt $" {}
- timeout {
- error "Couldn't unload file in $GDB (timed out)."
- return -1
- }
- }
- }
-
- #
- # gdb_load -- load a file into the debugger.
- # return a -1 if anything goes wrong.
- #
- proc gdb_load { arg } {
- global verbose
- global loadpath
- global loadfile
- global GDB
- global prompt
-
- set loadfile [file tail $arg]
- set loadpath [file dirname $arg]
- send "file $arg\n"
- expect {
- -re "Reading symbols from.*done.*$prompt $" {
- if $verbose>1 then {
- send_user "\t\tLoaded $arg into the $GDB\n"
- }
- return 0
- }
- -re "has no symbol-table.*$prompt $" {
- error "$arg wasn't compiled with \"-g\""
- return -1
- }
- -re "A program is being debugged already..*Kill it\? \(y or n\) $" {
- send "y\n"
- if $verbose>1 then {
- send_user "\t\tKilling previous program being debugged\n"
- }
- continue -expect
- }
- -re "Load new symbol table from.*\? \(y or n\) $" {
- send "y\n"
- expect {
- -re "Reading symbols from.*done.*$prompt $" {
- if $verbose>1 then {
- send_user "\t\tLoaded $arg with new symbol table into $GDB\n"
- }
- return 0
- }
- timeout {
- error "(timeout) Couldn't load $arg, other program already loaded."
- return -1
- }
- }
- }
- -re ".*No such file or directory.*$prompt $" {
- error "($arg) No such file or directory\n"
- return -1
- }
- -re "$prompt $" {
- error "couldn't load $arg into $GDB."
- return -1
- }
- timeout {
- error "couldn't load $arg into $GDB (timed out)."
- return -1
- }
- }
- }
-
- #
- # gdb_exit -- kills the gdb process currently running
- #
- proc gdb_exit {} {
- global verbose
- global GDB
- global GDBFLAGS
- set timeout 1
-
- if $verbose>1 then {
- send_user "Quitting $GDB $GDBFLAGS\n"
- }
- catch "send \"quit\n\"" result
- if [string match "write\(spawn_id=\[0-9\]+\):" $result] then {
- catch "close"
- return -1
- }
- catch {
- expect {
- eof {
- if $verbose>1 then {
- send_user "Got EOF from $GDB\n"
- }
- }
- timeout {
- if $verbose>1 then {
- send_user "Got TIMEOUT from $GDB\n"
- }
- close
- }
- -re "The program is running. Quit anyway? (y or n) $" {
- send "y\n"
- if $verbose>1 then {
- send_user "\t\tKilling program being debugged\n"
- }
- close
- }
- }
- }
- catch "close"
-
- if $verbose>1 then {
- send_user "Quitting $GDB $GDBFLAGS\n"
- }
- }
-
- #
- # start gdb -- start gdb running
- #
-
- proc gdb_start {} {
- global verbose
- global GDB
- global GDBFLAGS
- global prompt
- global spawn_id
- global timeout
- if $verbose>1 then {
- send_user "Spawning $GDB $GDBFLAGS\n"
- }
-
- set oldtimeout $timeout
- set timeout [expr "$timeout + 60"]
- if [ llength $GDBFLAGS ] then {
- if {[which $GDB] != 0} then {
- spawn $GDB $GDBFLAGS
- } else {
- error "$GDB does not exist."
- exit 1
- }
- } else {
- IF {[WHICH $GDB] != 0} then {
- spawn $GDB
- } else {
- error "$GDB does not exist."
- exit 1
- }
- }
- expect {
- -re ".*$prompt $" {
- if $verbose>1 then {
- send_user "GDB initialized for native mode\n"
- }
- }
- -re "$prompt $" {
- error "GDB never initialized."
- return -1
- }
- timeout {
- error "(timeout) GDB never initialized."
- return -1
- }
- }
- set timeout $oldtimeout
- # force the height to "unlimited", so no pagers get used
- send "set height 0\n"
- expect {
- -re ".*$prompt $" {
- if $verbose>2 then {
- send_user "Seting height to 0.\n"
- }
- }
- timeout {
- warning "Couldn't set the height to 0."
- }
- }
- # force the width to "unlimited", so no wraparound occurs
- send "set width 0\n"
- expect {
- -re ".*$prompt $" {
- if $verbose>2 then {
- send_user "Seting width to 0.\n"
- }
- }
- timeout {
- warning "Couldn't set the width to 0."
- }
- }
- }
-
- # These only need to be uncommented for debugging test cases. They exist
- # mainly to catch programming errors
- #expect_after {
- # "<return>" { send "\n"; error "Window too small." }
- # -re "\(y or n\) " { send "n\n"; error "Got interactive prompt." }
- # buffer_full { error "internal buffer is full." }
- # eof { error "eof -- there is no child process" ; alldone}
- # timeout { error "timeout." }
- # "virtual memory exhausted" { error "virtual memory exhausted." }
- # "Undefined command" { error "send string probably wrong." }
- #}
-
- load_lib gdb.exp
-
- set binpath /s1/users/rob/vxworks/bin/somewhere-bogus-that-needs-configuring
- set bin $GDB
-
- gdb_start
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