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- # Copyright (C) 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 Fred Fish. (fnf@cygnus.com)
-
- # Generic gdb subroutines that should work for any target. If these
- # need to be modified for any target, it can be done with a variable
- # or by passing arguments.
-
- #
- # 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
- }
- }
- }
-
- # Many of the tests depend on setting breakpoints at various places and
- # running until that breakpoint is reached. At times, we want to start
- # with a clean-slate with respect to breakpoints, so this utility proc
- # lets us do this without duplicating this code everywhere.
- #
-
- proc delete_breakpoints {} {
- global prompt
-
- send "delete breakpoints\n"
- expect {
- -re "Delete all breakpoints\? \(y or n\) $" {
- send "y\n"
- continue -expect
- }
- -re "y\r\n$prompt $" {}
- -re ".*$prompt $" { fail "Delete all breakpoints" ; return }
- timeout { fail "Delete all breakpoints (timeout)" ; return }
- }
- send "info breakpoints\n"
- expect {
- -re "No breakpoints or watchpoints..*$prompt $" {}
- -re ".*$prompt $" { fail "breakpoints not deleted" ; return }
- timeout { fail "info breakpoints (timeout)" ; return }
- }
- }
-
-
- #
- # Set breakpoint at function and run gdb until it breaks there.
- # Since this is the only breakpoint that will be set, if it stops
- # at a breakpoint, we will assume it is the one we want. We can't
- # just compare to "function" because it might be a fully qualified,
- # single quoted C++ function specifier.
- #
-
- proc runto { function } {
- global prompt
- global decimal
-
- send "delete\n"
- expect {
- -re "Delete all breakpoints\? \(y or n\) $" {
- send "y\n"
- expect {
- -re "$prompt $" {}
- timeout { fail "deleting breakpoints (timeout)" ; return 0 }
- }
- }
- -re ".*$prompt $" {}
- timeout { fail "deleting breakpoints (timeout)" ; return 0 }
- }
-
- send "break $function\n"
- expect {
- -re "Break.* at .*: file .*, line $decimal.\r\n$prompt $" {}
- -re "$prompt $" { fail "setting breakpoint at $function" ; return 0 }
- timeout { fail "setting breakpoint at $function (timeout)" ; return 0 }
- }
-
- send "run\n"
- expect {
- -re "The program .* has been started already.* \(y or n\) $" {
- send "y\n"
- continue -expect
- }
- -re "Starting.*Break.* at .*:$decimal.*$prompt $" { return 1 }
- -re "$prompt $" { fail "running to $function" ; return 0 }
- timeout { fail "running to $function (timeout)" ; return 0 }
- }
- }
-
- #
- # gdb_test -- send a command to gdb and test the result.
- # Takes three parameters.
- # Parameters:
- # First one is the command to execute,
- # Second one is the pattern to match for a PASS,
- # Third one is an optional message to be printed. If this
- # a null string "", then the pass/fail messages are not printed.
- # Returns:
- # 1 if the test failed,
- # 0 if the test passes,
- # -1 if there was an internal error.
- #
- proc gdb_test { args } {
- global verbose
- global prompt
- global GDB
- global spawn_id
-
- if [llength $args]==3 then {
- set message [lindex $args 2]
- } else {
- set message [lindex $args 0]
- }
- set command [lindex $args 0]
- set pattern [lindex $args 1]
-
- if $verbose>2 then {
- send_user "Sending \"$command\" to gdb\n"
- send_user "Looking to match \"$pattern\"\n"
- send_user "Message is \"$message\"\n"
- }
-
- set result -1
- set errmess ""
- # trap the send so any problems don't crash things
- catch "send \"$command\n\"" errmess
- if [string match "write\(spawn_id=\[0-9\]+\):" $errmess] then {
- error "sent \"$command\" got expect error \"$errmess\""
- catch "close"
- gdb_start
- return -1
- }
-
- expect {
- -re ".*Ending remote debugging.*$prompt$" {
- if ![isnative] then {
- warning "Can`t communicate to remote target."
- }
- gdb_exit
- gdb_start
- set result -1
- }
- -re "$pattern.*$prompt $" {
- if ![string match "" $message] then {
- pass "$message"
- }
- set result 0
- }
- -re "Undefined command:.*$prompt" {
- error "Undefined command \"$command\"."
- set result 1
- }
- -re "Ambiguous command.*$prompt $" {
- error "\"$command\" is not a unique command name."
- set result 1
- }
- -re ".*$prompt $" {
- if ![string match "" $message] then {
- fail "$message"
- }
- set result 1
- }
- "<return>" {
- send "\n"
- error "Window too small."
- }
- -re "\(y or n\) " {
- send "n\n"
- error "Got interactive prompt."
- }
- eof {
- error "Process no longer exists"
- return -1
- }
- buffer_full {
- error "internal buffer is full."
- }
- timeout {
- fail "(timeout) $message"
- set result 1
- }
- }
- return $result
- }
-
- proc gdb_reinitialize_dir { subdir } {
- global prompt
- global verbose
-
- send "dir\n"
- expect {
- -re "Reinitialize source path to empty.*" {
- send "y\n"
- expect {
- -re "Source directories searched.*$prompt $" {
- send "dir $subdir\n"
- expect {
- -re "Source directories searched.*$prompt $" {
- if $verbose>1 then {
- send_user "Dir set to $subdir\n"
- }
- }
- -re ".*$prompt $" {
- error "Dir \"$subdir\" failed."
- }
- }
- }
- -re ".*$prompt $" {
- error "Dir \"$subdir\" failed."
- }
- }
- }
- -re ".*$prompt $" {
- error "Dir \"$subdir\" failed."
- }
- }
- }
-