old-cross-binutils/gdb/testsuite/lib/gdb.exp

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# Copyright (C) 1992, 1994, 1995 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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.
load_lib libgloss.exp
global GDB
global CC
global CXX
global CFLAGS
global CXXFLAGS
global CHILL_LIB
global CHILL_RT0
if ![info exists CC] {
set CC [findfile $base_dir/../../gcc/xgcc "$base_dir/../../gcc/xgcc -B$base_dir/../../gcc/" [transform gcc]]
}
verbose "using CC = $CC" 2
if ![info exists CXX] {
set CXX [findfile $base_dir/../../gcc/xgcc "$base_dir/../../gcc/xgcc -B$base_dir/../../gcc/" [transform g++]]
}
verbose "using CXX = $CXX" 2
if ![info exists CHILL_LIB] {
set CHILL_LIB [findfile $base_dir/../../gcc/ch/runtime/libchill.a "$base_dir/../../gcc/ch/runtime/libchill.a" [transform -lchill]]
}
verbose "using CHILL_LIB = $CHILL_LIB" 2
if ![info exists CHILL_RT0] {
set CHILL_RT0 [findfile $base_dir/../../gcc/ch/runtime/chillrt0.o "$base_dir/../../gcc/ch/runtime/chillrt0.o" ""]
}
verbose "using CHILL_RT0 = $CHILL_RT0" 2
if ![info exists LDFLAGS] {
if [is3way] {
append LDFLAGS " [libgloss_flags] [newlib_flags]"
}
set LDFLAGS ""
}
verbose "using LDFLAGS = $LDFLAGS" 2
if ![info exists GDB] then {
set GDB [findfile $base_dir/../../gdb/gdb "$base_dir/../../gdb/gdb" [transform gdb]]
}
verbose "using GDB = $GDB" 2
global GDBFLAGS
if ![info exists GDBFLAGS] then {
set GDBFLAGS "-nx"
}
verbose "using GDBFLAGS = $GDBFLAGS" 2
# The variable prompt is a regexp which matches the gdb prompt. Set it if it
# is not already set.
global prompt
if ![info exists prompt] then {
set prompt "\\(gdb\\)"
}
global usestubs
if [istarget "sparclite-*-*"] then {
set usestubs 1
} else {
set usestubs 0
}
if ![info exists noargs] then {
set noargs 0
}
if ![info exists nosignals] then {
set nosignals 0
}
if ![info exists noinferiorio] then {
set noinferiorio 0
}
if ![info exists noresults] then {
set noresults 0
}
#
# gdb_version -- extract and print the version number of GDB
#
proc default_gdb_version {} {
global GDB
global GDBFLAGS
if {[which $GDB] != 0} then {
set tmp [exec echo "q" | $GDB -nw $GDBFLAGS]
regexp " \[0-9\]\[^ \t\n\]+" $tmp version
clone_output "[which $GDB] version$version -nw $GDBFLAGS \n"
} else {
warning "$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" { exp_continue }
-re "No symbol file now.*\r" { exp_continue }
-re "A program is being debugged already..*Kill it.*y or n. $"\
{ send "y\n"
verbose "\t\tKilling previous program being debugged"
exp_continue
}
-re "Discard symbol table from .*y or n. $" {
send "y\n"
exp_continue
}
-re "$prompt $" {}
timeout {
perror "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. $" {
send "y\n"
exp_continue
}
-re "y\r\n$prompt $" {}
-re ".*$prompt $" { # This happens if there were no breakpoints
}
timeout { perror "Delete all breakpoints (timeout)" ; return }
}
send "info breakpoints\n"
expect {
-re "No breakpoints or watchpoints..*$prompt $" {}
-re ".*$prompt $" { perror "breakpoints not deleted" ; return }
timeout { perror "info breakpoints (timeout)" ; return }
}
}
#
# Generic run command.
#
# The second pattern below matches up to the first newline *only*.
# Using ``.*$'' could swallow up output that we attempt to match
# elsewhere.
#
proc gdb_run_cmd {} {
global usestubs
global prompt
if $usestubs!=0 {
send "jump *start\n"
expect {
-re "Line.* Jump anyway.*y or n. $" {
send "y\n"
expect {
-re "Continuing.*$prompt $" {}
timeout { perror "Jump to start() failed (timeout)"; return }
}
}
timeout { perror "Jump to start() failed (timeout)"; return }
}
send "continue\n"
return
}
send "run\n"
expect {
-re "The program .* has been started already.*y or n. $" {
send "y\n"
exp_continue
}
-re "Starting program: \[^\n\]*" {}
}
}
# 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.*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"
# The first two regexps are what we get with -g, the third is without -g.
expect {
-re "Breakpoint \[0-9\]* at .*: file .*, line $decimal.\r\n$prompt $" {}
-re "Breakpoint \[0-9\]*: file .*, line $decimal.\r\n$prompt $" {}
-re "Breakpoint \[0-9\]* at .*$prompt $" {}
-re "$prompt $" { fail "setting breakpoint at $function" ; return 0 }
timeout { fail "setting breakpoint at $function (timeout)" ; return 0 }
}
gdb_run_cmd
# the "at foo.c:36" output we get with -g.
# the "in func" output we get without -g.
expect {
-re "Break.* at .*:$decimal.*$prompt $" {
return 1
}
-re "Breakpoint \[0-9\]*, \[0-9xa-f\]* in $function.*$prompt $" {
return 1
}
-re "$prompt $" {
fail "running to $function"
return 0
}
timeout {
fail "running to $function (timeout)"
return 0
}
}
}
#
# runto_main -- ask gdb to run and untill hit break point at main.
# if it uses stubs, assuming we hit breakpoint() and just
# step out of the function.
#
proc runto_main {} {
global prompt
global decimal
global usestubs
if $usestubs==0 {
runto main
return 1
}
send "delete\n"
expect {
-re "delete.*Delete all breakpoints.*y or n. $" {
send "y\n"
expect {
-re "$prompt $" {}
timeout { fail "deleting breakpoints (timeout)" ; return 0 }
}
}
-re ".*$prompt $" {}
timeout { fail "deleting breakpoints (timeout)" ; return 0 }
}
send "step\n"
# if use stubs step out of the breakpoint() function.
expect {
-re "main.* at .*$prompt $" {}
timeout { fail "single step at breakpoint() (timeout)" ; return 0 }
}
return 1
}
#
# 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, and must NOT include
# the \r\n sequence immediately before the gdb prompt.
# 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
upvar timeout timeout
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
if ![string match $command ""] {
send "$command\n"
}
expect {
-re ".*Ending remote debugging.*$prompt$" {
if ![isnative] then {
warning "Can`t communicate to remote target."
}
gdb_exit
gdb_start
set result -1
}
-re "$pattern\r\n$prompt $" {
if ![string match "" $message] then {
pass "$message"
}
set result 0
}
-re "Undefined command:.*$prompt" {
perror "Undefined command \"$command\"."
set result 1
}
-re "Ambiguous command.*$prompt $" {
perror "\"$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"
perror "Window too small."
}
-re "\\(y or n\\) " {
send "n\n"
perror "Got interactive prompt."
}
eof {
perror "Process no longer exists"
return -1
}
buffer_full {
perror "internal buffer is full."
}
timeout {
if ![string match "" $message] then {
fail "(timeout) $message"
}
set result 1
}
}
return $result
}
# Test that a command gives an error. For pass or fail, return
# a 1 to indicate that more tests can proceed. However a timeout
# is a serious error, generates a special fail message, and causes
# a 0 to be returned to indicate that more tests are likely to fail
# as well.
proc test_print_reject { args } {
global prompt
global verbose
if [llength $args]==2 then {
set expectthis [lindex $args 1]
} else {
set expectthis "should never match this bogus string"
}
set sendthis [lindex $args 0]
if $verbose>2 then {
send_user "Sending \"$sendthis\" to gdb\n"
send_user "Looking to match \"$expectthis\"\n"
}
send "$sendthis\n"
expect {
-re ".*A .* in expression.*\\.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*Invalid syntax in expression.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*Junk after end of expression.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*Invalid number.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*Invalid character constant.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*No symbol table is loaded.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*No symbol .* in current context.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*$expectthis.*$prompt $" {
pass "reject $sendthis"
return 1
}
-re ".*$prompt $" {
fail "reject $sendthis"
return 1
}
default {
fail "reject $sendthis (eof or timeout)"
return 0
}
}
}
# Given an input string, adds backslashes as needed to create a
# regexp that will match the string.
proc string_to_regexp {str} {
set result $str
regsub -all {[]*+.|()^$\[]} $str {\\&} result
return $result
}
# Same as gdb_test, but the second parameter is not a regexp,
# but a string that must match exactly.
proc gdb_test_exact { args } {
upvar timeout timeout
set command [lindex $args 0]
set pattern [string_to_regexp [lindex $args 1]]
# It is most natural to write the pattern argument with only
# embedded \n's, especially if you are trying to avoid Tcl quoting
# problems. But expect really wants to see \r\n in patterns. So
# transform the pattern here. First transform \r\n back to \n, in
# case some users of gdb_test_exact already do the right thing.
regsub -all "\r\n" $pattern "\n" pattern
regsub -all "\n" $pattern "\r\n" pattern
if [llength $args]==3 then {
set message [lindex $args 2]
} else {
set message $command
}
return [gdb_test $command $pattern $message]
}
proc gdb_reinitialize_dir { subdir } {
global prompt
send "dir\n"
expect {
-re "Reinitialize source path to empty.*y or n. " {
send "y\n"
expect {
-re "Source directories searched.*$prompt $" {
send "dir $subdir\n"
expect {
-re "Source directories searched.*$prompt $" {
verbose "Dir set to $subdir"
}
-re ".*$prompt $" {
perror "Dir \"$subdir\" failed."
}
}
}
-re ".*$prompt $" {
perror "Dir \"$subdir\" failed."
}
}
}
-re ".*$prompt $" {
perror "Dir \"$subdir\" failed."
}
}
}
#
# gdb_exit -- exit the GDB, killing the target program if necessary
#
proc default_gdb_exit {} {
global GDB
global GDBFLAGS
global verbose
verbose "Quitting $GDB $GDBFLAGS"
# This used to be 1 for unix-gdb.exp
set timeout 5
verbose "Timeout is now $timeout seconds" 2
# We used to try to send "quit" to GDB, and wait for it to die.
# Dealing with all the cases and errors got pretty hairy. Just close it,
# that is simpler.
close
# Omitting this probably would cause strange timing-dependent failures.
wait
}
#
# load a file into the debugger.
# return a -1 if anything goes wrong.
#
proc gdb_file_cmd { arg } {
global verbose
global loadpath
global loadfile
global GDB
global prompt
global spawn_id
upvar timeout timeout
send "file $arg\n"
expect {
-re "Reading symbols from.*done.*$prompt $" {
verbose "\t\tLoaded $arg into the $GDB"
return 0
}
-re "has no symbol-table.*$prompt $" {
perror "$arg wasn't compiled with \"-g\""
return -1
}
-re "A program is being debugged already.*Kill it.*y or n. $" {
send "y\n"
verbose "\t\tKilling previous program being debugged"
exp_continue
}
-re "Load new symbol table from \".*\".*y or n. $" {
send "y\n"
expect {
-re "Reading symbols from.*done.*$prompt $" {
verbose "\t\tLoaded $arg with new symbol table into $GDB"
return 0
}
timeout {
perror "(timeout) Couldn't load $arg, other program already l
oaded."
return -1
}
}
}
-re ".*No such file or directory.*$prompt $" {
perror "($arg) No such file or directory\n"
return -1
}
-re "$prompt $" {
perror "couldn't load $arg into $GDB."
return -1
}
timeout {
perror "couldn't load $arg into $GDB (timed out)."
return -1
}
eof {
# This is an attempt to detect a core dump, but seems not to
# work. Perhaps we need to match .* followed by eof, in which
# expect does not seem to have a way to do that.
perror "couldn't load $arg into $GDB (end of file)."
return -1
}
}
}
#
# start gdb -- start gdb running, default procedure
#
# When running over NFS, particularly if running many simultaneous
# tests on different hosts all using the same server, things can
# get really slow. Give gdb at least 3 minutes to start up.
#
proc default_gdb_start { } {
global verbose
global GDB
global GDBFLAGS
global prompt
global spawn_id
global timeout
verbose "Spawning $GDB -nw $GDBFLAGS"
if { [which $GDB] == 0 } then {
perror "$GDB does not exist."
exit 1
}
set oldtimeout $timeout
set timeout [expr "$timeout + 180"]
verbose "Timeout increased to $timeout seconds" 2
eval "spawn $GDB -nw $GDBFLAGS"
expect {
-re ".*\r\n$prompt $" {
verbose "GDB initialized."
}
-re "$prompt $" {
perror "GDB never initialized."
set timeout $oldtimeout
verbose "Timeout restored to $timeout seconds" 2
return -1
}
timeout {
perror "(timeout) GDB never initialized after $timeout seconds."
set timeout $oldtimeout
verbose "Timeout restored to $timeout seconds" 2
return -1
}
}
set timeout $oldtimeout
verbose "Timeout restored to $timeout seconds" 2
# force the height to "unlimited", so no pagers get used
send "set height 0\n"
expect {
-re ".*$prompt $" {
verbose "Setting height to 0." 2
}
timeout {
warning "Couldn't set the height to 0."
}
}
# force the width to "unlimited", so no wraparound occurs
send "set width 0\n"
expect {
-re ".*$prompt $" {
verbose "Setting width to 0." 2
}
timeout {
warning "Couldn't set the width to 0."
}
}
}
#
# FIXME: this is a copy of the new library procedure, but it's here too
# till the new dejagnu gets installed everywhere. I'd hate to break the
# gdb tests suite.
#
global argv0
if ![info exists argv0] then {
proc exp_continue { } {
continue -expect
}
}
# * For crosses, the CHILL runtime doesn't build because it can't find
# setjmp.h, stdio.h, etc.
# * For AIX (as of 16 Mar 95), (a) there is no language code for
# CHILL in output_epilog in gcc/config/rs6000/rs6000.c, (b) collect2
# does not get along with AIX's too-clever linker.
# * On Irix5, there is a bug whereby set of bool, etc., don't get
# TYPE_LOW_BOUND for the bool right because force_to_range_type doesn't
# work with stub types.
# Lots of things seem to fail on the PA, and since it's not a supported
# chill target at the moment, don't run the chill tests.
proc skip_chill_tests {} {
eval set skip_chill [expr ![isnative] || [istarget "*-*-aix*"] || [istarget "*-*-irix5*"] || [istarget "alpha-*-osf*"] || [istarget "hppa*-*-*"]]
verbose "Skip chill tests is $skip_chill"
return $skip_chill
}