[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.gdb / selftest.exp

# Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002, 2003, 2004,
# 2005, 2006, 2007 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.  

# 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] || ![isnative] } then {
    return
}

# 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 gdb_prompt
    global srcdir
 
    gdb_reinitialize_dir $srcdir/..

    set unlikely_line 0
    for {set count 0} {$count < 32} {incr count} {
	send_gdb "list\n"
	# NOTE: carlton/2002-12-11: The "initial brace" and
	# "current_directory initialization" possibilities happen to
	# me with GCC 3.1 on i686-pc-linux-gnu when I compile with
	# optimization.
	gdb_expect {
	    -re ".*context = data.*$gdb_prompt $" {
		set description "step over context initialization"
		set command "step"
	    }
	    -re ".*argc = context->argc.*$gdb_prompt $" {
		set description "step over argc initialization"
		set command "step"
	    }
	    -re ".*argv = context->argv.*$gdb_prompt $" {
		set description "step over argv initialization"
		set command "step"
	    }
	    -re ".*quiet = 0.*$gdb_prompt $" {
		set description "step over quiet initialization"
		set command "step"
	    }
	    -re ".*batch = 0.*$gdb_prompt $" {
		set description "step over batch initialization"
		set command "step"
	    }
	    -re ".*symarg = NULL.*$gdb_prompt $" {
		set description "step over symarg initialization"
		set command "step"
	    }
	    -re ".*execarg = NULL.*$gdb_prompt $" {
		set description "step over execarg initialization"
		set command "step"
	    }
	    -re ".*corearg = NULL.*$gdb_prompt $" {
		set description "step over corearg initialization"
		set command "step"
	    }
	    -re ".*cdarg = NULL.*$gdb_prompt $" {
		set description "step over cdarg initialization"
		set command "step"
	    }
	    -re ".*ttyarg = NULL.*$gdb_prompt $" {
		set description "step over ttyarg initialization"
		set command "step"
	    }
	    -re ".*time_at_startup = get_run_time.*$gdb_prompt $" {
		set description "next over get_run_time and everything it calls"
		set command "next"
	    }
	    -re ".*START_PROGRESS.*$gdb_prompt $" {
		# Note: ezannoni/2004/02/17: This check should be
		# removed, since as of today that source line is not
		# in gdb anymore.
		set description "next over START_PROGRESS and everything it calls"
		set command "next"
	    }
	    -re ".*mac_init.*$gdb_prompt $" {
		set description "next over mac_init and everything it calls"
		set command "next"
	    }
	    -re ".*init_malloc.*$gdb_prompt $" {
		# gdb 6.2.X is the last gdb which called init_malloc
		set description "next over init_malloc and everything it calls"
		set command "next"
	    }
	    -re ".*lim_at_start.*$gdb_prompt $" {
		set description "next over lim_at_start initialization"
		set command "next"
	    }
	    -re ".*count . 0x3.*$gdb_prompt $" {
		set description "next over conditional stack alignment code 1"
		set command "next"
	    }
	    -re ".*if .i != 0.*$gdb_prompt $" {
		set description "next over conditional stack alignment code 2"
		set command "next"
	    }
	    -re ".*alloca .i - 4.*$gdb_prompt $" {
		set description "next over conditional stack alignment alloca"
		set command "next"
	    }
	    -re ".*cmdsize = 1.*$gdb_prompt $" {
		set description "step over cmdsize initialization"
		set command "next"
	    }
	    -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
		set description "next over cmdarg initialization via xmalloc"
		set command "next"
	    }
	    -re ".*ncmd = 0.*$gdb_prompt $" {
		set description "next over ncmd initialization"
		set command "next"
	    }
	    -re ".*dirsize = 1.*$gdb_prompt $" {
		set description "next over dirsize initialization"
		set command "next"
	    }
	    -re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
		return
	    }
	    -re ".*setlocale .LC_MESSAGES,.*$gdb_prompt $" {
		set description "next over setlocale LC_MESSAGES"
		set command "next"
	    }
	    -re ".*setlocale .LC_CTYPE,.*$gdb_prompt $" {
		set description "next over setlocale LC_CTYPE"
		set command "next"
	    }
	    -re ".*bindtextdomain .PACKAGE, LOCALEDIR.;.*$gdb_prompt $" {
		set description "next over bindtextdomain"
		set command "next"
	    }
	    -re ".*textdomain .PACKAGE.;.*$gdb_prompt $" {
		set description "next over textdomain PACKAGE"
		set command "next"
	    }
	    -re "\[0-9\]*\t\{\r\n$gdb_prompt $" {
		set description "step over initial brace"
		set command "step"
	    }
	    -re ".*current_directory = gdb_dirbuf.*$gdb_prompt $" {
		set description "step over current_directory initialization"
		set command "step"
	    }
	    -re ".*gdb_sysroot = .*$gdb_prompt $" {
		# NOTE: carlton/2003-01-15: More optimization reordering,
		# observed on GCC 3.1.
		set description "step over gdb_sysroot initialization"
		set command "step"
	    }
	    -re ".*ndir = 0.*$gdb_prompt $" {
		set description "step over ndir initialization"
		set command "step"
	    }
	    -re ".*instream = stdin.*$gdb_prompt $" {
		set description "step over instream initialization"
		set command "step"
	    }
	    -re ".*getcwd .gdb_dirbuf, sizeof .gdb_dirbuf..;.*$gdb_prompt $" {
		set description "next over getcwd"
		set command "next"
	    }
	    -re ".*quit_flag = 0.*$gdb_prompt $" {
		set description "step over quit_flag initialization"
		set command "step"
	    }
	    -re ".*gdb_stdout = stdio_fileopen .stdout.;.*$gdb_prompt $" {
		set description "step over gdb_stdout initialization"
		set command "step"
	    }
	    -re ".*gdb_stderr = stdio_fileopen .stderr.;.*$gdb_prompt $" {
		set description "step over gdb_stderr initialization"
		set command "step"
	    }
	    -re "\[ \t\]+\{\r\n$gdb_prompt $" {
		setup_xfail "mips-*-irix5*"
		fail "$description ended up at odd location"
	    }
	    -re ".*main.c.*No such file or directory.*$gdb_prompt $" {
		setup_xfail "rs6000-*-aix3*"
		fail "must be able to list source lines"
		return
	    }
	    -re ".*interpreter_p = xstrdup.*$gdb_prompt $" {
		if { $unlikely_line == 0 } {
		    # This is a GCC optimization bug; a constant has been
		    # associated with the wrong line number.
		    setup_xfail "*-*-*" gcc/26475
		    fail "$description (unlikely line from gcc)"
		    set unlikely_line 1
		}
		set description "next over xstrdup"
		set command "next"
	    }
	    -re ".*$gdb_prompt $" {
		fail "unknown source line after $description"
		return
	    }
	    default {
		fail "unknown source line near main"
		return
	    }
	}
	send_gdb "$command\n"
	gdb_expect {
	    -re ".*No such file or directory.\r\n$gdb_prompt $" {
		fail "$description (no source available)"
	    }
	    -re ".*A file or directory .* does not exist..\r\n$gdb_prompt $" {
		fail "$description (no source available)"
	    }
	    -re ".*$gdb_prompt $" {
		pass "$description"
	    }
	    timeout {
		fail "$description (timeout)"
	    }
	}
    }
}

proc test_with_self { executable } {
    global gdb_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

    global gdb_file_cmd_debug_info
    set gdb_file_cmd_debug_info "unset"

    set result [gdb_load $executable]
    set timeout $oldtimeout
    verbose "Timeout is now $timeout seconds" 2

    if { $result != 0 } then {
	return -1
    }

    if { $gdb_file_cmd_debug_info != "debug" } then {
	untested "No debug information, skipping testcase."
	return -1
    }

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

    # Set a breakpoint at main
    gdb_test "break captured_main" \
	    "Breakpoint.*at.* file.*, line.*" \
	    "breakpoint in captured_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 captured_main"
    send_gdb "run -nw\n"
    gdb_expect {
	-re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.* at .*main.c:.*$gdb_prompt $" {
	    pass "$description"
	}
	-re "Starting program.*Breakpoint \[0-9\]+,.*captured_main .data.*$gdb_prompt $" {
	    xfail "$description (line numbers scrambled?)"
	}
	-re "vfork: No more processes.*$gdb_prompt $" {
	    fail "$description (out of virtual memory)"
	    set timeout $oldtimeout
	    verbose "Timeout is now $timeout seconds" 2
	    return -1
	}
	-re ".*$gdb_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_gdb "print version\n"
    gdb_expect {
	-re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
	    pass "printed version as string"
	}
	-re ".\[0-9\]+ = +0x.*\[0-9.\]+.*$gdb_prompt $" {
	    pass "printed version as pointer"
	}
	-re ".\[0-9\]+ = +.+ +0x.*\[0-9.\]+.*$gdb_prompt $" {
	    pass "printed version with cast"
	}
	-re ".*$gdb_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.
    # NOTE drow/2003-06-22: However, if we step back to the preceding two
    # lines, just keep stepping until we enter.
    set stepped_back 0
    setup_xfail "alpha-*-*" "mips-*-*"
    set description "step into xmalloc call"
    send_gdb "step\n"
    gdb_expect {
	-re "ncmd = 0;.*$gdb_prompt $" {
	    set stepped_back 1
	    send_gdb "step\n"
	    exp_continue
	}
        -re ".*cmdarg = .* xmalloc.*$gdb_prompt $" {
	    set stepped_back 1
	    send_gdb "step\n"
	    exp_continue
        }
	-re "dirsize = 1;.*$gdb_prompt $" {
	    set stepped_back 1
	    send_gdb "step\n"
	    exp_continue
	}
	-re ".*dirarg = .* xmalloc.*$gdb_prompt $" {
	    if { $stepped_back == 1 } {
		send_gdb "step\n"
		exp_continue
	    } else {
		fail "$description"
	    }
	}
	-re "xmalloc.*size=.*at.*utils.c.*$gdb_prompt $" {
	    pass "$description"
	}
	-re ".*No such file or directory.\r\n$gdb_prompt $" {
	    pass "$description (no source available)"
	}
	-re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
	    pass "$description (no source available)"
	}
	-re ".*$gdb_prompt $" {
	    fail "$description"
	}
	timeout {
	    fail "$description (timeout)"
	}
    }

    # start the "xgdb" process
    send_gdb "continue\n"
    gdb_expect {
	-re "GNU gdb \[0-9\.\]*.*
Copyright \\(C\\) \[0-9\]* 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 .*$gdb_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..*$gdb_prompt $"\
	    { pass "xgdb is at prompt (obsolescent gdb)" }
	-re ".*$gdb_prompt $"       { fail "xgdb is at prompt" }
	timeout	            { fail "(timeout) xgdb is at prompt" }
    }
    
    # set xgdb prompt so we can tell which is which
    send_gdb "set prompt (xgdb) \n"
    gdb_expect {
	-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $"	{ pass "Set xgdb prompt" }
	-re ".*$gdb_prompt $"		{ fail "Set xgdb prompt" }
	default				{ fail "(timeout) Set xgdb prompt" }
    }
    
    # kill the xgdb process
    set description "send ^C to child process"
    send_gdb "\003"
    gdb_expect {
	-re "Program received signal SIGINT.*$gdb_prompt $" {
	    pass "$description"
	}
	-re ".*$gdb_prompt $" {
	    fail "$description"
	}
	timeout {
	    fail "$description (timeout)"
	}
    }
    
    set description "send SIGINT signal to child process"
    send_gdb "signal SIGINT\n"
    gdb_expect {
	-re "Continuing with signal SIGINT.*$gdb_prompt $" {
	    pass "$description"
	}
	-re ".*$gdb_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"
    set description "backtrace through signal handler"
    send_gdb "backtrace\n"
    gdb_expect {
	-re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$gdb_prompt $" {
	    pass "$description"
	}
	-re ".*$gdb_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)"
	}
    }


    # 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.
    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 host delete x$tool

gdb_start
set file [remote_download host $GDB_FULLPATH x$tool]
set result [test_with_self $file];
gdb_exit;
catch "remote_file host delete $file";

if {$result <0} then {
    warning "Couldn't test self"
    return -1
}
Commit	Line	Data
6aba47ca DJ	1	# Copyright 1988, 1990, 1991, 1992, 1994, 1997, 1999, 2000, 2002, 2003, 2004,
6aba47ca DJ	2	# 2005, 2006, 2007 Free Software Foundation, Inc.
adf40b2e JM	3
	4	# This program is free software; you can redistribute it and/or modify
	5	# it under the terms of the GNU General Public License as published by
	6	# the Free Software Foundation; either version 2 of the License, or
	7	# (at your option) any later version.
	8	#
	9	# This program is distributed in the hope that it will be useful,
	10	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	# GNU General Public License for more details.
	13	#
	14	# You should have received a copy of the GNU General Public License
	15	# along with this program; if not, write to the Free Software
	16	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	17
adf40b2e JM	18	# This file was written by Rob Savoye. (rob@cygnus.com)
	19
	20	if $tracelevel then {
	21	strace $tracelevel
	22	}
	23
	24	set prms_id 0
	25	set bug_id 0
	26
	27	# are we on a target board
c1d88655	28	if { [is_remote target] \|\| ![isnative] } then {
adf40b2e JM	29	return
	30	}
	31
adf40b2e JM	32	# Not all of the lines of code near the start of main are executed for
	33	# every machine. Also, optimization may reorder some of the lines.
	34	# So all we do is try to step or next over everything until we get
	35	# to a line that we know is always executed.
	36
	37	proc do_steps_and_nexts {} {
	38	global gdb_prompt
	39	global srcdir
	40
	41	gdb_reinitialize_dir $srcdir/..
	42
2fa63963	43	set unlikely_line 0
48fe539f	44	for {set count 0} {$count < 32} {incr count} {
adf40b2e	45	send_gdb "list\n"
ee73db83 DC	46	# NOTE: carlton/2002-12-11: The "initial brace" and
	47	# "current_directory initialization" possibilities happen to
	48	# me with GCC 3.1 on i686-pc-linux-gnu when I compile with
	49	# optimization.
adf40b2e	50	gdb_expect {
0d06e24b JM	51	-re ".context = data.$gdb_prompt $" {
	52	set description "step over context initialization"
	53	set command "step"
	54	}
	55	-re ".argc = context->argc.$gdb_prompt $" {
	56	set description "step over argc initialization"
	57	set command "step"
	58	}
	59	-re ".argv = context->argv.$gdb_prompt $" {
	60	set description "step over argv initialization"
	61	set command "step"
	62	}
	63	-re ".quiet = 0.$gdb_prompt $" {
	64	set description "step over quiet initialization"
	65	set command "step"
	66	}
	67	-re ".batch = 0.$gdb_prompt $" {
	68	set description "step over batch initialization"
	69	set command "step"
	70	}
adf40b2e JM	71	-re ".symarg = NULL.$gdb_prompt $" {
	72	set description "step over symarg initialization"
	73	set command "step"
	74	}
	75	-re ".execarg = NULL.$gdb_prompt $" {
	76	set description "step over execarg initialization"
	77	set command "step"
	78	}
	79	-re ".corearg = NULL.$gdb_prompt $" {
	80	set description "step over corearg initialization"
	81	set command "step"
	82	}
	83	-re ".cdarg = NULL.$gdb_prompt $" {
	84	set description "step over cdarg initialization"
	85	set command "step"
	86	}
	87	-re ".ttyarg = NULL.$gdb_prompt $" {
	88	set description "step over ttyarg initialization"
	89	set command "step"
	90	}
adf40b2e JM	91	-re ".time_at_startup = get_run_time.$gdb_prompt $" {
	92	set description "next over get_run_time and everything it calls"
	93	set command "next"
	94	}
	95	-re ".START_PROGRESS.$gdb_prompt $" {
9d62932d EZ	96	# Note: ezannoni/2004/02/17: This check should be
	97	# removed, since as of today that source line is not
	98	# in gdb anymore.
adf40b2e JM	99	set description "next over START_PROGRESS and everything it calls"
	100	set command "next"
	101	}
	102	-re ".mac_init.$gdb_prompt $" {
	103	set description "next over mac_init and everything it calls"
	104	set command "next"
	105	}
c3297504 MC	106	-re ".init_malloc.$gdb_prompt $" {
	107	# gdb 6.2.X is the last gdb which called init_malloc
	108	set description "next over init_malloc and everything it calls"
	109	set command "next"
	110	}
6dd77b81 RH	111	-re ".lim_at_start.$gdb_prompt $" {
	112	set description "next over lim_at_start initialization"
	113	set command "next"
	114	}
adf40b2e JM	115	-re ".count . 0x3.$gdb_prompt $" {
	116	set description "next over conditional stack alignment code 1"
	117	set command "next"
	118	}
	119	-re ".if .i != 0.$gdb_prompt $" {
	120	set description "next over conditional stack alignment code 2"
	121	set command "next"
	122	}
	123	-re ".alloca .i - 4.$gdb_prompt $" {
	124	set description "next over conditional stack alignment alloca"
	125	set command "next"
	126	}
adf40b2e JM	127	-re ".cmdsize = 1.$gdb_prompt $" {
	128	set description "step over cmdsize initialization"
	129	set command "next"
	130	}
	131	-re ".cmdarg = . xmalloc.*$gdb_prompt $" {
	132	set description "next over cmdarg initialization via xmalloc"
	133	set command "next"
	134	}
	135	-re ".ncmd = 0.$gdb_prompt $" {
	136	set description "next over ncmd initialization"
	137	set command "next"
	138	}
	139	-re ".dirsize = 1.$gdb_prompt $" {
	140	set description "next over dirsize initialization"
	141	set command "next"
	142	}
	143	-re ".dirarg = . xmalloc.*$gdb_prompt $" {
	144	return
	145	}
8cf8c2b8 AC	146	-re ".setlocale .LC_MESSAGES,.$gdb_prompt $" {
	147	set description "next over setlocale LC_MESSAGES"
	148	set command "next"
	149	}
	150	-re ".setlocale .LC_CTYPE,.$gdb_prompt $" {
	151	set description "next over setlocale LC_CTYPE"
	152	set command "next"
	153	}
	154	-re ".bindtextdomain .PACKAGE, LOCALEDIR.;.$gdb_prompt $" {
	155	set description "next over bindtextdomain"
	156	set command "next"
	157	}
	158	-re ".textdomain .PACKAGE.;.$gdb_prompt $" {
	159	set description "next over textdomain PACKAGE"
	160	set command "next"
	161	}
ee73db83 DC	162	-re "\[0-9\]*\t\{\r\n$gdb_prompt $" {
	163	set description "step over initial brace"
	164	set command "step"
	165	}
	166	-re ".current_directory = gdb_dirbuf.$gdb_prompt $" {
	167	set description "step over current_directory initialization"
	168	set command "step"
	169	}
a1769aca DC	170	-re ".gdb_sysroot = .$gdb_prompt $" {
	171	# NOTE: carlton/2003-01-15: More optimization reordering,
	172	# observed on GCC 3.1.
	173	set description "step over gdb_sysroot initialization"
	174	set command "step"
	175	}
180dea7c AS	176	-re ".ndir = 0.$gdb_prompt $" {
	177	set description "step over ndir initialization"
	178	set command "step"
	179	}
	180	-re ".instream = stdin.$gdb_prompt $" {
	181	set description "step over instream initialization"
	182	set command "step"
	183	}
	184	-re ".getcwd .gdb_dirbuf, sizeof .gdb_dirbuf..;.$gdb_prompt $" {
	185	set description "next over getcwd"
	186	set command "next"
	187	}
6d9c3a87 AS	188	-re ".quit_flag = 0.$gdb_prompt $" {
	189	set description "step over quit_flag initialization"
	190	set command "step"
	191	}
	192	-re ".gdb_stdout = stdio_fileopen .stdout.;.$gdb_prompt $" {
	193	set description "step over gdb_stdout initialization"
	194	set command "step"
	195	}
	196	-re ".gdb_stderr = stdio_fileopen .stderr.;.$gdb_prompt $" {
	197	set description "step over gdb_stderr initialization"
	198	set command "step"
	199	}
adf40b2e JM	200	-re "\[ \t\]+\{\r\n$gdb_prompt $" {
	201	setup_xfail "mips--irix5"
	202	fail "$description ended up at odd location"
	203	}
	204	-re ".main.c.No such file or directory.*$gdb_prompt $" {
	205	setup_xfail "rs6000--aix3"
	206	fail "must be able to list source lines"
	207	return
	208	}
2fa63963 DJ	209	-re ".interpreter_p = xstrdup.$gdb_prompt $" {
	210	if { $unlikely_line == 0 } {
	211	# This is a GCC optimization bug; a constant has been
	212	# associated with the wrong line number.
	213	setup_xfail "--*" gcc/26475
	214	fail "$description (unlikely line from gcc)"
	215	set unlikely_line 1
	216	}
	217	set description "next over xstrdup"
	218	set command "next"
	219	}
adf40b2e JM	220	-re ".*$gdb_prompt $" {
	221	fail "unknown source line after $description"
	222	return
	223	}
	224	default {
	225	fail "unknown source line near main"
	226	return
	227	}
	228	}
	229	send_gdb "$command\n"
	230	gdb_expect {
	231	-re ".*No such file or directory.\r\n$gdb_prompt $" {
	232	fail "$description (no source available)"
	233	}
	234	-re ".A file or directory . does not exist..\r\n$gdb_prompt $" {
	235	fail "$description (no source available)"
	236	}
	237	-re ".*$gdb_prompt $" {
	238	pass "$description"
	239	}
	240	timeout {
	241	fail "$description (timeout)"
	242	}
	243	}
	244	}
	245	}
	246
	247	proc test_with_self { executable } {
	248	global gdb_prompt
	249	global tool
	250	global det_file
	251	global decimal
	252	global timeout
	253
	254	# load yourself into the debugger
	255	# This can take a relatively long time, particularly for testing where
	256	# the executable is being accessed over a network, or where gdb does not
	257	# support partial symbols for a particular target and has to load the
	258	# entire symbol table. Set the timeout to 10 minutes, which should be
	259	# adequate for most environments (it has timed out with 5 min on a
	260	# SPARCstation SLC under moderate load, so this isn't unreasonable).
	261	# After gdb is started, set the timeout to 30 seconds for the duration
	262	# of this test, and then back to the original value.
	263
	264	set oldtimeout $timeout
	265	set timeout 600
	266	verbose "Timeout is now $timeout seconds" 2
3e3ffd2b	267
2db8e78e MC	268	global gdb_file_cmd_debug_info
	269	set gdb_file_cmd_debug_info "unset"
	270
3e3ffd2b	271	set result [gdb_load $executable]
adf40b2e JM	272	set timeout $oldtimeout
	273	verbose "Timeout is now $timeout seconds" 2
	274
2db8e78e MC	275	if { $result != 0 } then {
	276	return -1
	277	}
	278
	279	if { $gdb_file_cmd_debug_info != "debug" } then {
	280	untested "No debug information, skipping testcase."
3e3ffd2b MC	281	return -1
	282	}
	283
adf40b2e JM	284	# disassemble yourself
	285	gdb_test "x/10i main" \
	286	"x/10i.main.main.$decimal.main.$decimal." \
	287	"Disassemble main"
	288
	289	# Set a breakpoint at main
0d06e24b	290	gdb_test "break captured_main" \
adf40b2e	291	"Breakpoint.at. file., line." \
0d06e24b	292	"breakpoint in captured_main"
adf40b2e JM	293
	294	# We'll need this when we send a ^C to GDB. Need to do it before we
	295	# run the program and gdb starts saving and restoring tty states.
	296	# On Ultrix, we don't need it and it is really slow (because shell_escape
	297	# doesn't use vfork).
	298	if ![istarget "--ultrix*"] then {
	299	gdb_test "shell stty intr '^C'" "" \
	300	"set interrupt character in test_with_self"
	301	}
	302
	303	# FIXME: If we put this after the run to main, the first list
	304	# command doesn't print the same line as the current line where
	305	# gdb is stopped.
	306	gdb_test "set listsize 1" "" "set listsize to 1"
	307
	308	# run yourself
	309	# It may take a very long time for the inferior gdb to start (lynx),
	310	# so we bump it back up for the duration of this command.
	311	set timeout 600
	312
0d06e24b	313	set description "run until breakpoint at captured_main"
adf40b2e JM	314	send_gdb "run -nw\n"
adf40b2e JM	315	gdb_expect {
0d06e24b	316	-re "Starting program.Breakpoint \[0-9\]+,.captured_main .data.* at .main.c:.$gdb_prompt $" {
adf40b2e JM	317	pass "$description"
adf40b2e JM	318	}
0d06e24b	319	-re "Starting program.Breakpoint \[0-9\]+,.captured_main .data.*$gdb_prompt $" {
adf40b2e JM	320	xfail "$description (line numbers scrambled?)"
	321	}
	322	-re "vfork: No more processes.*$gdb_prompt $" {
	323	fail "$description (out of virtual memory)"
	324	set timeout $oldtimeout
	325	verbose "Timeout is now $timeout seconds" 2
	326	return -1
	327	}
	328	-re ".*$gdb_prompt $" {
	329	fail "$description"
	330	set timeout $oldtimeout
	331	verbose "Timeout is now $timeout seconds" 2
	332	return -1
	333	}
	334	timeout {
	335	fail "$description (timeout)"
	336	}
	337	}
	338
	339	set timeout $oldtimeout
	340	verbose "Timeout is now $timeout seconds" 2
	341
	342	# do we have a version number ?
	343	send_gdb "print version\n"
	344	gdb_expect {
d4f3574e SS	345	-re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
	346	pass "printed version as string"
	347	}
adf40b2e	348	-re ".\[0-9\]+ = +0x.\[0-9.\]+.$gdb_prompt $" {
d4f3574e	349	pass "printed version as pointer"
adf40b2e JM	350	}
	351	-re ".\[0-9\]+ = +.+ +0x.\[0-9.\]+.$gdb_prompt $" {
	352	pass "printed version with cast"
	353	}
	354	-re ".*$gdb_prompt $" { fail "printed version" }
	355	timeout { fail "(timeout) printed version" }
	356	}
	357
	358	do_steps_and_nexts
	359
	360	gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
	361
	362	# do_steps_and_nexts left us ready to execute an xmalloc call,
	363	# so give that a try.
	364	# If we don't actually enter the xmalloc call when we give a
	365	# step command that seems like a genuine bug. It seems to happen
	366	# on most RISC processors.
48fe539f DJ	367	# NOTE drow/2003-06-22: However, if we step back to the preceding two
	368	# lines, just keep stepping until we enter.
	369	set stepped_back 0
adf40b2e JM	370	setup_xfail "alpha--" "mips--"
	371	set description "step into xmalloc call"
	372	send_gdb "step\n"
	373	gdb_expect {
48fe539f DJ	374	-re "ncmd = 0;.*$gdb_prompt $" {
	375	set stepped_back 1
	376	send_gdb "step\n"
	377	exp_continue
	378	}
274bcba0 EZ	379	-re ".cmdarg = . xmalloc.*$gdb_prompt $" {
	380	set stepped_back 1
	381	send_gdb "step\n"
	382	exp_continue
	383	}
48fe539f DJ	384	-re "dirsize = 1;.*$gdb_prompt $" {
	385	set stepped_back 1
	386	send_gdb "step\n"
	387	exp_continue
	388	}
	389	-re ".dirarg = . xmalloc.*$gdb_prompt $" {
	390	if { $stepped_back == 1 } {
	391	send_gdb "step\n"
	392	exp_continue
	393	} else {
	394	fail "$description"
	395	}
	396	}
adf40b2e JM	397	-re "xmalloc.size=.at.utils.c.$gdb_prompt $" {
	398	pass "$description"
	399	}
	400	-re ".*No such file or directory.\r\n$gdb_prompt $" {
	401	pass "$description (no source available)"
	402	}
	403	-re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
	404	pass "$description (no source available)"
	405	}
	406	-re ".*$gdb_prompt $" {
	407	fail "$description"
	408	}
	409	timeout {
	410	fail "$description (timeout)"
	411	}
	412	}
	413
	414	# start the "xgdb" process
	415	send_gdb "continue\n"
	416	gdb_expect {
	417	-re "GNU gdb \[0-9\.\].
d082a1e2	418	Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*
adf40b2e JM	419	GDB is free software, covered by the GNU General Public License, and you are.*
	420	welcome to change it and/or distribute copies of it under certain conditions.*
	421	Type \"show copying\" to see the conditions.*
	422	There is absolutely no warranty for GDB. Type \"show warranty\" for details.*
	423	This GDB was configured as .*$gdb_prompt $"\
	424	{ pass "xgdb is at prompt" }
	425	-re "GDB is free software and you are welcome to distribute copies of it.*
	426	under certain conditions; type \"show copying\" to see the conditions..*
	427	There is absolutely no warranty for GDB; type \"show warranty\" for details..*
	428	GDB.Copyright \[0-9\]+ Free Software Foundation, Inc..$gdb_prompt $"\
	429	{ pass "xgdb is at prompt (obsolescent gdb)" }
	430	-re ".*$gdb_prompt $" { fail "xgdb is at prompt" }
	431	timeout { fail "(timeout) xgdb is at prompt" }
	432	}
	433
	434	# set xgdb prompt so we can tell which is which
	435	send_gdb "set prompt (xgdb) \n"
	436	gdb_expect {
	437	-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" { pass "Set xgdb prompt" }
	438	-re ".*$gdb_prompt $" { fail "Set xgdb prompt" }
	439	default { fail "(timeout) Set xgdb prompt" }
	440	}
	441
	442	# kill the xgdb process
	443	set description "send ^C to child process"
	444	send_gdb "\003"
	445	gdb_expect {
	446	-re "Program received signal SIGINT.*$gdb_prompt $" {
	447	pass "$description"
	448	}
	449	-re ".*$gdb_prompt $" {
	450	fail "$description"
	451	}
	452	timeout {
	453	fail "$description (timeout)"
	454	}
	455	}
	456
	457	set description "send SIGINT signal to child process"
	458	send_gdb "signal SIGINT\n"
	459	gdb_expect {
	460	-re "Continuing with signal SIGINT.*$gdb_prompt $" {
	461	pass "$description"
	462	}
	463	-re ".*$gdb_prompt $" {
	464	fail "$description"
	465	}
	466	timeout {
	467	fail "$description (timeout)"
	468	}
	469	}
	470
	471	# get a stack trace
	472	#
	473	# This fails on some linux systems for unknown reasons. On the
	474	# systems where it fails, sometimes it works fine when run manually.
	475	# The testsuite failures may not be limited to just aout systems.
634d57ec	476	setup_xfail "i*86-pc-linuxaout-gnu"
adf40b2e JM	477	set description "backtrace through signal handler"
	478	send_gdb "backtrace\n"
	479	gdb_expect {
92806416	480	-re "#0.(read\|poll).in main \\(.\\) at .gdb\\.c.*$gdb_prompt $" {
adf40b2e JM	481	pass "$description"
	482	}
	483	-re ".*$gdb_prompt $" {
	484	# On the alpha, we hit the infamous problem about gdb
	485	# being unable to get the frame pointer (mentioned in
	486	# gdb/README). As it is intermittent, there is no way to
	487	# XFAIL it which will give us an XPASS if the problem goes
	488	# away.
	489	setup_xfail "alpha--osf*"
	490	fail "$description"
	491	}
	492	timeout {
	493	fail "$description (timeout)"
	494	}
	495	}
	496
	497
	498	# Set the timeout back to the value it had when we were called.
	499	set timeout $oldtimeout
	500	verbose "Timeout is now $timeout seconds" 2
	501
	502	# Restart gdb in case next test expects it to be started already.
	503	return 0
	504	}
	505
	506	# Find a pathname to a file that we would execute if the shell was asked
	507	# to run $arg using the current PATH.
	508
	509	proc find_gdb { arg } {
	510
	511	# If the arg directly specifies an existing executable file, then
	512	# simply use it.
	513
	514	if [file executable $arg] then {
	515	return $arg
	516	}
	517
	518	set result [which $arg]
	519	if [string match "/" [ string range $result 0 0 ]] then {
	520	return $result
	521	}
	522
	523	# If everything fails, just return the unqualified pathname as default
	524	# and hope for best.
	525
	526	return $arg
	527	}
	528
	529	# Run the test with self.
	530	# Copy the file executable file in case this OS doesn't like to edit its own
	531	# text space.
	532
	533	set GDB_FULLPATH [find_gdb $GDB]
	534
	535	# Remove any old copy lying around.
	536	remote_file host delete x$tool
	537
	538	gdb_start
	539	set file [remote_download host $GDB_FULLPATH x$tool]
	540	set result [test_with_self $file];
	541	gdb_exit;
	542	catch "remote_file host delete $file";
	543
	544	if {$result <0} then {
545	warning "Couldn't test self"
546	return -1
547	}