[thirdparty/binutils-gdb.git] / gdb / testsuite / gdb.base / a1-selftest.exp

#   Copyright (C) 1988, 1990, 1991, 1992, 1994 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 Rob Savoye. (rob@cygnus.com)

if $tracelevel then {
    strace $tracelevel
}

set prms_id 0
set bug_id 0

# are we on a target board
if [is_remote target] {
    return
}

if [istarget "m68k*-*-hpux*"] then {
    # The top-level makefile passes CFLAGS= (no -g) for hp300.  This probably
    # should be fixed (it is only needed for gcc bootstrapping, not gdb),
    # but until then.....
    setup_xfail "*-*-*"
    fail "cannot test self if compiled without debug info"
    return -1
}

# Not all of the lines of code near the start of main are executed for
# every machine.  Also, optimization may reorder some of the lines.
# So all we do is try to step or next over everything until we get
# to a line that we know is always executed.

proc do_steps_and_nexts {} {
    global prompt
    global srcdir
 
    gdb_reinitialize_dir $srcdir/..

    for {set count 0} {$count < 20} {incr count} {
	send "list\n"
	expect {
	    -re ".*symarg = NULL.*$prompt $" {
		set description "step over symarg initialization"
		set command "step"
	    }
	    -re ".*execarg = NULL.*$prompt $" {
		set description "step over execarg initialization"
		set command "step"
	    }
	    -re ".*corearg = NULL.*$prompt $" {
		set description "step over corearg initialization"
		set command "step"
	    }
	    -re ".*cdarg = NULL.*$prompt $" {
		set description "step over cdarg initialization"
		set command "step"
	    }
	    -re ".*ttyarg = NULL.*$prompt $" {
		set description "step over ttyarg initialization"
		set command "step"
	    }
	    -re ".*time_at_startup = get_run_time.*$prompt $" {
		set description "next over get_run_time and everything it calls"
		set command "next"
	    }
	    -re ".*START_PROGRESS.*$prompt $" {
		set description "next over START_PROGRESS and everything it calls"
		set command "next"
	    }
	    -re ".*mac_init.*$prompt $" {
		set description "next over mac_init and everything it calls"
		set command "next"
	    }
	    -re ".*init_malloc.*$prompt $" {
		set description "next over init_malloc and everything it calls"
		set command "next"
	    }
	    -re ".*count . 0x3.*$prompt $" {
		set description "next over conditional stack alignment code 1"
		set command "next"
	    }
	    -re ".*if .i != 0.*$prompt $" {
		set description "next over conditional stack alignment code 2"
		set command "next"
	    }
	    -re ".*alloca .i - 4.*$prompt $" {
		set description "next over conditional stack alignment alloca"
		set command "next"
	    }
	    -re ".*SET_TOP_LEVEL.*$prompt $" {
		set description "next over SET_TOP_LEVEL call"
		set command "next"
	    }
	    -re ".*cmdsize = 1.*$prompt $" {
		set description "step over cmdsize initialization"
		set command "next"
	    }
	    -re ".*cmdarg = .* xmalloc.*$prompt $" {
		set description "next over cmdarg initialization via xmalloc"
		set command "next"
	    }
	    -re ".*ncmd = 0.*$prompt $" {
		set description "next over ncmd initialization"
		set command "next"
	    }
	    -re ".*dirsize = 1.*$prompt $" {
		set description "next over dirsize initialization"
		set command "next"
	    }
	    -re ".*dirarg = .* xmalloc.*$prompt $" {
		return
	    }
	    -re "\[ \t\]+\{\r\n$prompt $" {
		setup_xfail "mips-*-irix5*"
		fail "$description ended up at odd location"
	    }
	    -re ".*main.c.*No such file or directory.*$prompt $" {
		setup_xfail "rs6000-*-aix3*"
		fail "must be able to list source lines"
		return
	    }
	    -re ".*$prompt $" {
		fail "unknown source line after $description"
		return
	    }
	    default {
		fail "unknown source line near main"
		return
	    }
	}
	send "$command\n"
	expect {
	    -re ".*No such file or directory.\r\n$prompt $" {
		fail "$description (no source available)"
	    }
	    -re ".*A file or directory .* does not exist..\r\n$prompt $" {
		fail "$description (no source available)"
	    }
	    -re ".*$prompt $" {
		pass "$description"
	    }
	    timeout {
		fail "$description (timeout)"
	    }
	}
    }
}

proc test_with_self { executable } {
    global prompt
    global tool
    global det_file
    global decimal
    global timeout

    # load yourself into the debugger
    # This can take a relatively long time, particularly for testing where
    # the executable is being accessed over a network, or where gdb does not
    # support partial symbols for a particular target and has to load the
    # entire symbol table.  Set the timeout to 10 minutes, which should be
    # adequate for most environments (it *has* timed out with 5 min on a
    # SPARCstation SLC under moderate load, so this isn't unreasonable).
    # After gdb is started, set the timeout to 30 seconds for the duration
    # of this test, and then back to the original value.

    set oldtimeout $timeout
    set timeout 600
    verbose "Timeout is now $timeout seconds" 2
    if {[gdb_load $executable] <0} then {
	set timeout $oldtimeout
	verbose "Timeout is now $timeout seconds" 2
	return -1
    }
    set timeout $oldtimeout
    verbose "Timeout is now $timeout seconds" 2

    # disassemble yourself
    gdb_test "x/10i main" \
	    "x/10i.*main.*main.$decimal.*main.$decimal.*" \
	    "Disassemble main"

    # Set a breakpoint at main
    gdb_test "break main" \
	    "Breakpoint.*at.* file.*, line.*" \
	    "breakpoint in main"

    # We'll need this when we send a ^C to GDB.  Need to do it before we
    # run the program and gdb starts saving and restoring tty states.
    # On Ultrix, we don't need it and it is really slow (because shell_escape
    # doesn't use vfork).
    if ![istarget "*-*-ultrix*"] then {
	gdb_test "shell stty intr '^C'" "" \
	    "set interrupt character in test_with_self"
    }

    # FIXME: If we put this after the run to main, the first list
    # command doesn't print the same line as the current line where
    # gdb is stopped.
    gdb_test "set listsize 1" "" "set listsize to 1"

    # run yourself
    # It may take a very long time for the inferior gdb to start (lynx),
    # so we bump it back up for the duration of this command.
    set timeout 600

    set description "run until breakpoint at main"
    send "run -nw\n"
    expect {
	-re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.* at .*main.c:.*$prompt $" {
	    pass "$description"
	}
	-re "Starting program.*Breakpoint \[0-9\]+,.*main .argc.*argv.*$prompt $" {
	    xfail "$description (line numbers scrambled?)"
	}
	-re "vfork: No more processes.*$prompt $" {
	    fail "$description (out of virtual memory)"
	    set timeout $oldtimeout
	    verbose "Timeout is now $timeout seconds" 2
	    return -1
	}
	-re ".*$prompt $" {
	    fail "$description"
	    set timeout $oldtimeout
	    verbose "Timeout is now $timeout seconds" 2
	    return -1
	}
	timeout {
	    fail "$description (timeout)"
	}
    }

    set timeout $oldtimeout
    verbose "Timeout is now $timeout seconds" 2

    # do we have a version number ?
    send "print version\n"
    expect {
	-re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$prompt $" {
	    pass "printed version"
	}
	-re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$prompt $" {
	    pass "printed version with cast"
	}
	-re ".*$prompt $"	{ fail "printed version" }
	timeout		{ fail "(timeout) printed version" }
    }

    do_steps_and_nexts

    gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"

    # do_steps_and_nexts left us ready to execute an xmalloc call,
    # so give that a try.
    # If we don't actually enter the xmalloc call when we give a
    # step command that seems like a genuine bug.  It seems to happen
    # on most RISC processors.
    setup_xfail "alpha-*-*" "hppa*-*-*" "mips-*-*"
    set description "step into xmalloc call"
    send "step\n"
    expect {
	-re "xmalloc.*size=.*at.*utils.c.*$prompt $" {
	    pass "$description"
	}
	-re ".*No such file or directory.\r\n$prompt $" {
	    pass "$description (no source available)"
	}
	-re "A file or directory .* does not exist..\r\n$prompt $" {
	    pass "$description (no source available)"
	}
	-re ".*$prompt $" {
	    fail "$description"
	}
	timeout {
	    fail "$description (timeout)"
	}
    }

    # start the "xgdb" process
    send "continue\n"
    expect {
	-re "GNU gdb \[0-9\.\]*.*
Copyright \[0-9\]* Free Software Foundation, Inc.*
GDB is free software, covered by the GNU General Public License, and you are.*
welcome to change it and/or distribute copies of it under certain conditions.*
Type \"show copying\" to see the conditions.*
There is absolutely no warranty for GDB.  Type \"show warranty\" for details.*
This GDB was configured as .*$prompt $"\
	    { pass "xgdb is at prompt" }
	-re "GDB is free software and you are welcome to distribute copies of it.*
 under certain conditions; type \"show copying\" to see the conditions..*
There is absolutely no warranty for GDB; type \"show warranty\" for details..*
GDB.*Copyright \[0-9\]+ Free Software Foundation, Inc..*$prompt $"\
	    { pass "xgdb is at prompt (obsolescent gdb)" }
	-re ".*$prompt $"       { fail "xgdb is at prompt" }
	timeout	            { fail "(timeout) xgdb is at prompt" }
    }
    
    # set xgdb prompt so we can tell which is which
    send "set prompt (xgdb) \n"
    expect {
	-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"	{ pass "Set xgdb prompt" }
	-re ".*$prompt $"		{ fail "Set xgdb prompt" }
	default				{ fail "(timeout) Set xgdb prompt" }
    }
    
    # kill the xgdb process
    set description "send ^C to child process"
    send "\003"
    expect {
	-re "Program received signal SIGINT.*$prompt $" {
	    pass "$description"
	}
	-re ".*$prompt $" {
	    fail "$description"
	}
	timeout {
	    fail "$description (timeout)"
	}
    }
    
    set description "send SIGINT signal to child process"
    send "signal SIGINT\n"
    expect {
	-re "Continuing with signal SIGINT.*$prompt $" {
	    pass "$description"
	}
	-re ".*$prompt $" {
	    fail "$description"
	}
	timeout {
	    fail "$description (timeout)"
	}
    }
    
    # get a stack trace
    #
    # This fails on some linux systems for unknown reasons.  On the
    # systems where it fails, sometimes it works fine when run manually.
    # The testsuite failures may not be limited to just aout systems.
    setup_xfail "i*86-pc-linuxaout-gnu" "hppa*-*-hpux*"
    set description "backtrace through signal handler"
    send "backtrace\n"
    expect {
	-re "#0.*read.*in main \\(.*\\) at .*main\\.c.*$prompt $" {
	    pass "$description"
	}
	-re ".*$prompt $" {
	    # On the alpha, we hit the infamous problem about gdb
	    # being unable to get the frame pointer (mentioned in
	    # gdb/README).  As it is intermittent, there is no way to
	    # XFAIL it which will give us an XPASS if the problem goes
	    # away.
	    setup_xfail "alpha*-*-osf*"
	    fail "$description"
	}
	timeout {
	    fail "$description (timeout)"
	}
    }

    gdb_exit

    # Set the timeout back to the value it had when we were called.
    set timeout $oldtimeout
    verbose "Timeout is now $timeout seconds" 2

    # Restart gdb in case next test expects it to be started already.
    gdb_start
    return 0
}

# Find a pathname to a file that we would execute if the shell was asked
# to run $arg using the current PATH.

proc find_gdb { arg } {

    # If the arg directly specifies an existing executable file, then
    # simply use it.

    if [file executable $arg] then {
	return $arg
    }

    set result [which $arg]
    if [string match "/" [ string range $result 0 0 ]] then {
	return $result
    }

    # If everything fails, just return the unqualified pathname as default
    # and hope for best.

    return $arg
}

# Run the test with self.
# Copy the file executable file in case this OS doesn't like to edit its own
# text space.

set GDB_FULLPATH [find_gdb $GDB]

# Remove any old copy lying around.
remote_file build delete x$tool

gdb_start
set file [remote_download build $GDB_FULLPATH x$tool]
set result [test_with_self $file];
remote_file build delete $file;

if {$result <0} then {
    warning "Couldn't test self"
    return -1
}
Commit	Line	Data
ef44eed1 SS	1	# Copyright (C) 1988, 1990, 1991, 1992, 1994 Free Software Foundation, Inc.
	2
	3	# This program is free software; you can redistribute it and/or modify
	4	# it under the terms of the GNU General Public License as published by
	5	# the Free Software Foundation; either version 2 of the License, or
	6	# (at your option) any later version.
	7	#
	8	# This program is distributed in the hope that it will be useful,
	9	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	# GNU General Public License for more details.
	12	#
	13	# You should have received a copy of the GNU General Public License
	14	# along with this program; if not, write to the Free Software
6c9638b4	15	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
ef44eed1 SS	16
	17	# Please email any bugs, comments, and/or additions to this file to:
	18	# bug-gdb@prep.ai.mit.edu
	19
	20	# This file was written by Rob Savoye. (rob@cygnus.com)
	21
	22	if $tracelevel then {
787f6220 BM	23	strace $tracelevel
787f6220 BM	24	}
ef44eed1 SS	25
	26	set prms_id 0
	27	set bug_id 0
	28
	29	# are we on a target board
787f6220	30	if [is_remote target] {
782445c7	31	return
ef44eed1	32	}
787f6220	33
1fb1efcd JK	34	if [istarget "m68k--hpux*"] then {
	35	# The top-level makefile passes CFLAGS= (no -g) for hp300. This probably
	36	# should be fixed (it is only needed for gcc bootstrapping, not gdb),
	37	# but until then.....
	38	setup_xfail "--*"
	39	fail "cannot test self if compiled without debug info"
782445c7	40	return -1
1fb1efcd	41	}
ef44eed1	42
d9538961 FF	43	# Not all of the lines of code near the start of main are executed for
	44	# every machine. Also, optimization may reorder some of the lines.
	45	# So all we do is try to step or next over everything until we get
	46	# to a line that we know is always executed.
	47
	48	proc do_steps_and_nexts {} {
	49	global prompt
49c7ee7b PS	50	global srcdir
	51
	52	gdb_reinitialize_dir $srcdir/..
d9538961 FF	53
	54	for {set count 0} {$count < 20} {incr count} {
	55	send "list\n"
	56	expect {
	57	-re ".symarg = NULL.$prompt $" {
	58	set description "step over symarg initialization"
	59	set command "step"
	60	}
	61	-re ".execarg = NULL.$prompt $" {
	62	set description "step over execarg initialization"
	63	set command "step"
	64	}
	65	-re ".corearg = NULL.$prompt $" {
	66	set description "step over corearg initialization"
	67	set command "step"
	68	}
	69	-re ".cdarg = NULL.$prompt $" {
	70	set description "step over cdarg initialization"
	71	set command "step"
	72	}
	73	-re ".ttyarg = NULL.$prompt $" {
	74	set description "step over ttyarg initialization"
	75	set command "step"
	76	}
	77	-re ".time_at_startup = get_run_time.$prompt $" {
	78	set description "next over get_run_time and everything it calls"
	79	set command "next"
	80	}
	81	-re ".START_PROGRESS.$prompt $" {
	82	set description "next over START_PROGRESS and everything it calls"
	83	set command "next"
	84	}
	85	-re ".mac_init.$prompt $" {
	86	set description "next over mac_init and everything it calls"
	87	set command "next"
	88	}
	89	-re ".init_malloc.$prompt $" {
	90	set description "next over init_malloc and everything it calls"
	91	set command "next"
	92	}
49c7ee7b PS	93	-re ".count . 0x3.$prompt $" {
	94	set description "next over conditional stack alignment code 1"
	95	set command "next"
	96	}
	97	-re ".if .i != 0.$prompt $" {
	98	set description "next over conditional stack alignment code 2"
	99	set command "next"
	100	}
	101	-re ".alloca .i - 4.$prompt $" {
	102	set description "next over conditional stack alignment alloca"
	103	set command "next"
	104	}
d9538961 FF	105	-re ".SET_TOP_LEVEL.$prompt $" {
	106	set description "next over SET_TOP_LEVEL call"
	107	set command "next"
	108	}
	109	-re ".cmdsize = 1.$prompt $" {
	110	set description "step over cmdsize initialization"
	111	set command "next"
	112	}
	113	-re ".cmdarg = . xmalloc.*$prompt $" {
	114	set description "next over cmdarg initialization via xmalloc"
	115	set command "next"
	116	}
	117	-re ".ncmd = 0.$prompt $" {
	118	set description "next over ncmd initialization"
	119	set command "next"
	120	}
	121	-re ".dirsize = 1.$prompt $" {
	122	set description "next over dirsize initialization"
	123	set command "next"
	124	}
	125	-re ".dirarg = . xmalloc.*$prompt $" {
	126	return
	127	}
	128	-re "\[ \t\]+\{\r\n$prompt $" {
	129	setup_xfail "mips--irix5"
	130	fail "$description ended up at odd location"
	131	}
49c7ee7b	132	-re ".main.c.No such file or directory.*$prompt $" {
d9538961 FF	133	setup_xfail "rs6000--aix3"
	134	fail "must be able to list source lines"
	135	return
	136	}
49c7ee7b PS	137	-re ".*$prompt $" {
	138	fail "unknown source line after $description"
	139	return
	140	}
d9538961 FF	141	default {
	142	fail "unknown source line near main"
	143	return
	144	}
	145	}
	146	send "$command\n"
	147	expect {
	148	-re ".*No such file or directory.\r\n$prompt $" {
	149	fail "$description (no source available)"
	150	}
	151	-re ".A file or directory . does not exist..\r\n$prompt $" {
	152	fail "$description (no source available)"
	153	}
	154	-re ".*$prompt $" {
	155	pass "$description"
	156	}
	157	timeout {
	158	fail "$description (timeout)"
	159	}
	160	}
	161	}
	162	}
	163
787f6220	164	proc test_with_self { executable } {
ef44eed1 SS	165	global prompt
	166	global tool
	167	global det_file
ef44eed1	168	global decimal
a26fa899	169	global timeout
ef44eed1 SS	170
	171	# load yourself into the debugger
	172	# This can take a relatively long time, particularly for testing where
	173	# the executable is being accessed over a network, or where gdb does not
	174	# support partial symbols for a particular target and has to load the
	175	# entire symbol table. Set the timeout to 10 minutes, which should be
	176	# adequate for most environments (it has timed out with 5 min on a
	177	# SPARCstation SLC under moderate load, so this isn't unreasonable).
f1c9e446	178	# After gdb is started, set the timeout to 30 seconds for the duration
ef44eed1 SS	179	# of this test, and then back to the original value.
ef44eed1 SS	180
5fac6a39	181	set oldtimeout $timeout
ef44eed1	182	set timeout 600
a26fa899	183	verbose "Timeout is now $timeout seconds" 2
787f6220	184	if {[gdb_load $executable] <0} then {
5fac6a39 FF	185	set timeout $oldtimeout
5fac6a39 FF	186	verbose "Timeout is now $timeout seconds" 2
ef44eed1 SS	187	return -1
ef44eed1 SS	188	}
49c7ee7b	189	set timeout $oldtimeout
5fac6a39	190	verbose "Timeout is now $timeout seconds" 2
ef44eed1	191
ef44eed1	192	# disassemble yourself
787f6220 BM	193	gdb_test "x/10i main" \
	194	"x/10i.main.main.$decimal.main.$decimal." \
	195	"Disassemble main"
ef44eed1	196
787f6220 BM	197	# Set a breakpoint at main
	198	gdb_test "break main" \
	199	"Breakpoint.at. file., line." \
	200	"breakpoint in main"
ef44eed1	201
ff884d6e JK	202	# We'll need this when we send a ^C to GDB. Need to do it before we
	203	# run the program and gdb starts saving and restoring tty states.
	204	# On Ultrix, we don't need it and it is really slow (because shell_escape
	205	# doesn't use vfork).
	206	if ![istarget "--ultrix*"] then {
	207	gdb_test "shell stty intr '^C'" "" \
	208	"set interrupt character in test_with_self"
	209	}
	210
d9538961 FF	211	# FIXME: If we put this after the run to main, the first list
	212	# command doesn't print the same line as the current line where
	213	# gdb is stopped.
787f6220	214	gdb_test "set listsize 1" "" "set listsize to 1"
d9538961	215
ef44eed1	216	# run yourself
5fac6a39 FF	217	# It may take a very long time for the inferior gdb to start (lynx),
	218	# so we bump it back up for the duration of this command.
	219	set timeout 600
	220
ef44eed1	221	set description "run until breakpoint at main"
f526457c	222	send "run -nw\n"
ef44eed1 SS	223	expect {
	224	-re "Starting program.Breakpoint \[0-9\]+,.main .argc.argv. at .main.c:.$prompt $" {
	225	pass "$description"
	226	}
	227	-re "Starting program.Breakpoint \[0-9\]+,.main .argc.argv.$prompt $" {
	228	xfail "$description (line numbers scrambled?)"
	229	}
	230	-re "vfork: No more processes.*$prompt $" {
	231	fail "$description (out of virtual memory)"
5fac6a39 FF	232	set timeout $oldtimeout
5fac6a39 FF	233	verbose "Timeout is now $timeout seconds" 2
ef44eed1 SS	234	return -1
	235	}
	236	-re ".*$prompt $" {
	237	fail "$description"
5fac6a39 FF	238	set timeout $oldtimeout
5fac6a39 FF	239	verbose "Timeout is now $timeout seconds" 2
ef44eed1 SS	240	return -1
	241	}
	242	timeout {
	243	fail "$description (timeout)"
	244	}
	245	}
	246
49c7ee7b	247	set timeout $oldtimeout
a26fa899	248	verbose "Timeout is now $timeout seconds" 2
f1c9e446	249
ef44eed1 SS	250	# do we have a version number ?
	251	send "print version\n"
	252	expect {
	253	-re ".\[0-9\]+ = +0x.\[0-9.\]+.$prompt $" {
	254	pass "printed version"
	255	}
	256	-re ".\[0-9\]+ = +.+ +0x.\[0-9.\]+.$prompt $" {
	257	pass "printed version with cast"
	258	}
	259	-re ".*$prompt $" { fail "printed version" }
	260	timeout { fail "(timeout) printed version" }
	261	}
	262
d9538961	263	do_steps_and_nexts
ef44eed1	264
787f6220	265	gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
ef44eed1	266
d9538961 FF	267	# do_steps_and_nexts left us ready to execute an xmalloc call,
	268	# so give that a try.
	269	# If we don't actually enter the xmalloc call when we give a
	270	# step command that seems like a genuine bug. It seems to happen
	271	# on most RISC processors.
	272	setup_xfail "alpha--" "hppa--" "mips--*"
	273	set description "step into xmalloc call"
ef44eed1 SS	274	send "step\n"
ef44eed1 SS	275	expect {
d9538961	276	-re "xmalloc.size=.at.utils.c.$prompt $" {
ef44eed1	277	pass "$description"
ef44eed1 SS	278	}
	279	-re ".*No such file or directory.\r\n$prompt $" {
	280	pass "$description (no source available)"
	281	}
d9538961	282	-re "A file or directory .* does not exist..\r\n$prompt $" {
ef44eed1 SS	283	pass "$description (no source available)"
ef44eed1 SS	284	}
ef44eed1 SS	285	-re ".*$prompt $" {
	286	fail "$description"
	287	}
	288	timeout {
	289	fail "$description (timeout)"
	290	}
	291	}
	292
ef44eed1 SS	293	# start the "xgdb" process
	294	send "continue\n"
	295	expect {
56741777 FF	296	-re "GNU gdb \[0-9\.\].
	297	Copyright \[0-9\]* Free Software Foundation, Inc.*
	298	GDB is free software, covered by the GNU General Public License, and you are.*
	299	welcome to change it and/or distribute copies of it under certain conditions.*
	300	Type \"show copying\" to see the conditions.*
	301	There is absolutely no warranty for GDB. Type \"show warranty\" for details.*
	302	This GDB was configured as .*$prompt $"\
	303	{ pass "xgdb is at prompt" }
ef44eed1 SS	304	-re "GDB is free software and you are welcome to distribute copies of it.*
	305	under certain conditions; type \"show copying\" to see the conditions..*
	306	There is absolutely no warranty for GDB; type \"show warranty\" for details..*
	307	GDB.Copyright \[0-9\]+ Free Software Foundation, Inc..$prompt $"\
56741777	308	{ pass "xgdb is at prompt (obsolescent gdb)" }
ef44eed1 SS	309	-re ".*$prompt $" { fail "xgdb is at prompt" }
	310	timeout { fail "(timeout) xgdb is at prompt" }
	311	}
	312
	313	# set xgdb prompt so we can tell which is which
	314	send "set prompt (xgdb) \n"
	315	expect {
	316	-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" { pass "Set xgdb prompt" }
	317	-re ".*$prompt $" { fail "Set xgdb prompt" }
	318	default { fail "(timeout) Set xgdb prompt" }
	319	}
	320
	321	# kill the xgdb process
	322	set description "send ^C to child process"
	323	send "\003"
	324	expect {
	325	-re "Program received signal SIGINT.*$prompt $" {
	326	pass "$description"
	327	}
	328	-re ".*$prompt $" {
	329	fail "$description"
	330	}
	331	timeout {
	332	fail "$description (timeout)"
	333	}
	334	}
	335
	336	set description "send SIGINT signal to child process"
	337	send "signal SIGINT\n"
	338	expect {
	339	-re "Continuing with signal SIGINT.*$prompt $" {
	340	pass "$description"
	341	}
	342	-re ".*$prompt $" {
	343	fail "$description"
	344	}
	345	timeout {
	346	fail "$description (timeout)"
	347	}
	348	}
	349
	350	# get a stack trace
06f4dc08 FF	351	#
	352	# This fails on some linux systems for unknown reasons. On the
	353	# systems where it fails, sometimes it works fine when run manually.
	354	# The testsuite failures may not be limited to just aout systems.
b016565b	355	setup_xfail "i86-pc-linuxaout-gnu" "hppa--hpux"
ef44eed1 SS	356	set description "backtrace through signal handler"
	357	send "backtrace\n"
	358	expect {
ac35a003	359	-re "#0.read.in main \\(.\\) at .main\\.c.*$prompt $" {
ef44eed1 SS	360	pass "$description"
	361	}
	362	-re ".*$prompt $" {
9b86fdca JK	363	# On the alpha, we hit the infamous problem about gdb
	364	# being unable to get the frame pointer (mentioned in
	365	# gdb/README). As it is intermittent, there is no way to
	366	# XFAIL it which will give us an XPASS if the problem goes
	367	# away.
	368	setup_xfail "alpha--osf*"
ef44eed1 SS	369	fail "$description"
	370	}
	371	timeout {
	372	fail "$description (timeout)"
	373	}
	374	}
4a2170f0 JK	375
4a2170f0 JK	376	gdb_exit
ef44eed1 SS	377
ef44eed1 SS	378	# Set the timeout back to the value it had when we were called.
5fac6a39 FF	379	set timeout $oldtimeout
5fac6a39 FF	380	verbose "Timeout is now $timeout seconds" 2
ef44eed1 SS	381
	382	# Restart gdb in case next test expects it to be started already.
	383	gdb_start
	384	return 0
	385	}
	386
	387	# Find a pathname to a file that we would execute if the shell was asked
	388	# to run $arg using the current PATH.
	389
	390	proc find_gdb { arg } {
	391
	392	# If the arg directly specifies an existing executable file, then
	393	# simply use it.
	394
	395	if [file executable $arg] then {
	396	return $arg
	397	}
	398
	399	set result [which $arg]
	400	if [string match "/" [ string range $result 0 0 ]] then {
	401	return $result
	402	}
	403
	404	# If everything fails, just return the unqualified pathname as default
	405	# and hope for best.
	406
	407	return $arg
	408	}
	409
	410	# Run the test with self.
787f6220	411	# Copy the file executable file in case this OS doesn't like to edit its own
ef44eed1 SS	412	# text space.
	413
	414	set GDB_FULLPATH [find_gdb $GDB]
	415
	416	# Remove any old copy lying around.
787f6220 BM	417	remote_file build delete x$tool
	418
	419	gdb_start
	420	set file [remote_download build $GDB_FULLPATH x$tool]
	421	set result [test_with_self $file];
	422	remote_file build delete $file;
	423
	424	if {$result <0} then {
	425	warning "Couldn't test self"
	426	return -1
ef44eed1	427	}