binutils-gdb/gdb/testsuite/lib/gdb.exp
Mike Werner 19fa4a0af3 * gdb/testsuite: Initial creation of gdb/testsuite.
Migrated dejagnu testcases and support files for testing nm to
	gdb/testsuite from deja-gnu.  These files were moved "as is"
	with no modifications.	This migration is part of a major overhaul
	of dejagnu.  The modifications to these testcases, etc., which
	will allow them to work with the new version of dejagnu will be
	made in a future update.
1993-02-21 20:03:55 +00:00

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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:
# DejaGnu@cygnus.com
# 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)."
alldone
}
}
}
# 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 "" $errmess] then {
error "send \"$command\" got expect error \"$errmess\""
return -1
}
expect {
-re ".*Ending remote debugging.*$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\"."
}
-re "Ambiguous command.*$prompt $" {
error "\"$command\" is not a unique command name."
}
-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."
}
buffer_full {
error "internal buffer is full."
}
eof {
error "eof -- pty is hosed."
}
timeout {
fail "(timeout) $message"
set result 1
}
}
return $result
}
# "virtual memory exhausted" {
# error "virtual memory exhausted."
# }
proc gdb_reinitialize_dir { subdir } {
global prompt
global verbose
send "dir\n"
expect {
-re "Reinitialize source path to empty.*" {
send "y\n"
expect {
-re "Source directories searched.*$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."
}
}
}