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

# Copyright 1988-2013 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 3 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, see <http://www.gnu.org/licenses/>.

# This file was written by Rob Savoye. (rob@cygnus.com)


# 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} {$count < 32} {incr count} {
	# NOTE: carlton/2002-12-11: The "initial brace" and
	# "current_directory initialization" possibilities happen to
	# me with GCC 3.1 on i686-pc-linux-gnu when I compile with
	# optimization.
	gdb_test_multiple "list" "list" {
	    -re ".*context = data.*$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 $" {
		set description "step over execarg initialization"
		set command "step"
	    }
	    -re ".*pidarg = NULL.*$gdb_prompt $" {
		set description "step over pidarg initialization"
		set command "step"
	    }
	    -re ".*corearg = NULL.*$gdb_prompt $" {
		set description "step over corearg initialization"
		set command "step"
	    }
	    -re ".*pid_or_core_arg = NULL.*$gdb_prompt $" {
		set description "step over pid_or_core_arg initialization"
		set command "step"
	    }
	    -re ".*cdarg = NULL.*$gdb_prompt $" {
		set description "step over cdarg initialization"
		set command "step"
	    }
	    -re ".*ttyarg = NULL.*$gdb_prompt $" {
		set description "step over ttyarg initialization"
		set command "step"
	    }
	    -re ".*cmdarg_vec = NULL.*$gdb_prompt $" {
		set description "step over cmdarg_vec initialization"
		set command "step"
	    }
	    -re ".*pre_stat_chain = make_command_stats_cleanup.*$gdb_prompt $" {
		set description "next over make_command_stats_cleanup and everything it calls"
		set command "next"
	    }
	    -re ".*START_PROGRESS.*$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 $" {
		set description "next over conditional stack alignment alloca"
		set command "next"
	    }
	    -re ".*dirsize = 1.*$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 $" {
		set description "next over textdomain PACKAGE"
		set command "next"
	    }
	    -re ".*bfd_init ..;.*$gdb_prompt $" {
		set description "next over bfd_init"
		set command "next"
	    }
	    -re ".*VEC_cleanup .cmdarg_s.*$gdb_prompt $" {
		set description "next over cmdarg_s VEC_cleanup"
		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 $" {
		set description "next over getcwd"
		set command "next"
	    }
	    -re ".*gdb_program_name = xstrdup.*$gdb_prompt $" {
                set description "next over xstrdup"
                set command "next"
            } 
            -re ".*quit_flag = 0.*$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 $" {
		set description "step over gdb_stderr initialization"
		set command "step"
	    }
	    -re ".*main.c.*No such file or directory.*$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 $description"
		return
	    }
	    default {
		fail "unknown source line near main"
		return
	    }
	}
	gdb_test_multiple "$command" "$description" {
	    -re ".*No such file or directory.\r\n$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"
	    }
	}
    }
}

proc test_with_self { executable } {
    global gdb_prompt
    global tool
    global det_file
    global decimal
    global timeout
    global INTERNAL_GDBFLAGS

    # 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_no_output "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"
    gdb_test_multiple "run $INTERNAL_GDBFLAGS" "$description" {
	-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
	}
    }

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

    # do we have a version number ?
    gdb_test_multiple "print version" "printed version" {
	-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"
	}
    }

    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"
    gdb_test_multiple "step" "$description" {
	-re "ncmd = 0;.*$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)"
	}
    }

    # start the "xgdb" process
    if [target_info exists gdb,noinferiorio] {
	# Maybe testing with a local extended-remote gdbserver.  With
	# no way to interact with inferior GDB, all we can do is let
	# it run.
	send_gdb "continue\n"
	# Wait a bit while the inferior gdb gets to its prompt.
	sleep 1
    } else {
	set test "xgdb is at prompt"
	gdb_test_multiple "continue" $test {
	    -re "GNU gdb \[0-9\.\]*.*Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.*License GPLv3\\+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.*This is free software: you are free to change and redistribute it.*There is NO WARRANTY, to the extent permitted by law.  Type \"show copying\".*and \"show warranty\" for details.*This GDB was configured as .*$gdb_prompt $" {
		pass $test
	    }
	}

	# set xgdb prompt so we can tell which is which
	gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" {
	    -re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" {
		pass "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"
    gdb_test "signal SIGINT" \
	"Continuing with signal SIGINT.*" \
	"$description"
    
    # 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"
    gdb_test_multiple "backtrace" "$description" {
	-re "#0.*(read|poll).*in main \\(.*\\) at .*gdb\\.c.*$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"
	}
    }


    # 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
8acc9f48	1	# Copyright 1988-2013 Free Software Foundation, Inc.
adf40b2e JM	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
e22f8b7c	5	# the Free Software Foundation; either version 3 of the License, or
adf40b2e	6	# (at your option) any later version.
e22f8b7c	7	#
adf40b2e JM	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.
e22f8b7c	12	#
adf40b2e	13	# You should have received a copy of the GNU General Public License
e22f8b7c	14	# along with this program. If not, see <http://www.gnu.org/licenses/>.
adf40b2e	15
adf40b2e JM	16	# This file was written by Rob Savoye. (rob@cygnus.com)
adf40b2e JM	17
adf40b2e JM	18
adf40b2e JM	19	# are we on a target board
c1d88655	20	if { [is_remote target] \|\| ![isnative] } then {
adf40b2e JM	21	return
	22	}
	23
adf40b2e JM	24	# Not all of the lines of code near the start of main are executed for
	25	# every machine. Also, optimization may reorder some of the lines.
	26	# So all we do is try to step or next over everything until we get
	27	# to a line that we know is always executed.
	28
	29	proc do_steps_and_nexts {} {
	30	global gdb_prompt
	31	global srcdir
	32
	33	gdb_reinitialize_dir $srcdir/..
	34
2fa63963	35	set unlikely_line 0
48fe539f	36	for {set count 0} {$count < 32} {incr count} {
ee73db83 DC	37	# NOTE: carlton/2002-12-11: The "initial brace" and
	38	# "current_directory initialization" possibilities happen to
	39	# me with GCC 3.1 on i686-pc-linux-gnu when I compile with
	40	# optimization.
a127f7b4	41	gdb_test_multiple "list" "list" {
0d06e24b JM	42	-re ".context = data.$gdb_prompt $" {
	43	set description "step over context initialization"
	44	set command "step"
	45	}
	46	-re ".argc = context->argc.$gdb_prompt $" {
	47	set description "step over argc initialization"
	48	set command "step"
	49	}
	50	-re ".argv = context->argv.$gdb_prompt $" {
	51	set description "step over argv initialization"
	52	set command "step"
	53	}
	54	-re ".quiet = 0.$gdb_prompt $" {
	55	set description "step over quiet initialization"
	56	set command "step"
	57	}
	58	-re ".batch = 0.$gdb_prompt $" {
	59	set description "step over batch initialization"
	60	set command "step"
	61	}
adf40b2e JM	62	-re ".symarg = NULL.$gdb_prompt $" {
	63	set description "step over symarg initialization"
	64	set command "step"
	65	}
	66	-re ".execarg = NULL.$gdb_prompt $" {
	67	set description "step over execarg initialization"
	68	set command "step"
	69	}
5def8285 MK	70	-re ".pidarg = NULL.$gdb_prompt $" {
	71	set description "step over pidarg initialization"
	72	set command "step"
	73	}
adf40b2e JM	74	-re ".corearg = NULL.$gdb_prompt $" {
	75	set description "step over corearg initialization"
	76	set command "step"
	77	}
5def8285 MK	78	-re ".pid_or_core_arg = NULL.$gdb_prompt $" {
	79	set description "step over pid_or_core_arg initialization"
	80	set command "step"
	81	}
adf40b2e JM	82	-re ".cdarg = NULL.$gdb_prompt $" {
	83	set description "step over cdarg initialization"
	84	set command "step"
	85	}
	86	-re ".ttyarg = NULL.$gdb_prompt $" {
	87	set description "step over ttyarg initialization"
	88	set command "step"
	89	}
8320cc4f JK	90	-re ".cmdarg_vec = NULL.$gdb_prompt $" {
	91	set description "step over cmdarg_vec initialization"
	92	set command "step"
	93	}
0f3bb72e PH	94	-re ".pre_stat_chain = make_command_stats_cleanup.$gdb_prompt $" {
0f3bb72e PH	95	set description "next over make_command_stats_cleanup and everything it calls"
adf40b2e JM	96	set command "next"
	97	}
	98	-re ".START_PROGRESS.$gdb_prompt $" {
9d62932d EZ	99	# Note: ezannoni/2004/02/17: This check should be
	100	# removed, since as of today that source line is not
	101	# in gdb anymore.
adf40b2e JM	102	set description "next over START_PROGRESS and everything it calls"
	103	set command "next"
	104	}
	105	-re ".mac_init.$gdb_prompt $" {
	106	set description "next over mac_init and everything it calls"
	107	set command "next"
	108	}
c3297504 MC	109	-re ".init_malloc.$gdb_prompt $" {
	110	# gdb 6.2.X is the last gdb which called init_malloc
	111	set description "next over init_malloc and everything it calls"
	112	set command "next"
	113	}
6dd77b81 RH	114	-re ".lim_at_start.$gdb_prompt $" {
	115	set description "next over lim_at_start initialization"
	116	set command "next"
	117	}
adf40b2e JM	118	-re ".count . 0x3.$gdb_prompt $" {
	119	set description "next over conditional stack alignment code 1"
	120	set command "next"
	121	}
	122	-re ".if .i != 0.$gdb_prompt $" {
	123	set description "next over conditional stack alignment code 2"
	124	set command "next"
	125	}
	126	-re ".alloca .i - 4.$gdb_prompt $" {
	127	set description "next over conditional stack alignment alloca"
	128	set command "next"
	129	}
adf40b2e JM	130	-re ".dirsize = 1.$gdb_prompt $" {
	131	set description "next over dirsize initialization"
	132	set command "next"
	133	}
	134	-re ".dirarg = . xmalloc.*$gdb_prompt $" {
	135	return
	136	}
8cf8c2b8 AC	137	-re ".setlocale .LC_MESSAGES,.$gdb_prompt $" {
	138	set description "next over setlocale LC_MESSAGES"
	139	set command "next"
	140	}
	141	-re ".setlocale .LC_CTYPE,.$gdb_prompt $" {
	142	set description "next over setlocale LC_CTYPE"
	143	set command "next"
	144	}
	145	-re ".bindtextdomain .PACKAGE, LOCALEDIR.;.$gdb_prompt $" {
	146	set description "next over bindtextdomain"
	147	set command "next"
	148	}
	149	-re ".textdomain .PACKAGE.;.$gdb_prompt $" {
	150	set description "next over textdomain PACKAGE"
	151	set command "next"
	152	}
ea3aedcb TT	153	-re ".bfd_init ..;.$gdb_prompt $" {
	154	set description "next over bfd_init"
	155	set command "next"
	156	}
8320cc4f JK	157	-re ".VEC_cleanup .cmdarg_s.$gdb_prompt $" {
	158	set description "next over cmdarg_s VEC_cleanup"
	159	set command "next"
	160	}
b6db2c47	161	-re "\[0-9\]+\[\t \]+\{\r\n$gdb_prompt $" {
ee73db83 DC	162	set description "step over initial brace"
	163	set command "step"
	164	}
	165	-re ".current_directory = gdb_dirbuf.$gdb_prompt $" {
	166	set description "step over current_directory initialization"
	167	set command "step"
	168	}
a1769aca DC	169	-re ".gdb_sysroot = .$gdb_prompt $" {
	170	# NOTE: carlton/2003-01-15: More optimization reordering,
	171	# observed on GCC 3.1.
	172	set description "step over gdb_sysroot initialization"
	173	set command "step"
	174	}
180dea7c AS	175	-re ".ndir = 0.$gdb_prompt $" {
	176	set description "step over ndir initialization"
	177	set command "step"
	178	}
	179	-re ".instream = stdin.$gdb_prompt $" {
	180	set description "step over instream initialization"
	181	set command "step"
	182	}
96e25403	183	-re ".getcwd .gdb_dirbuf, sizeof .gdb_dirbuf.$gdb_prompt $" {
180dea7c AS	184	set description "next over getcwd"
	185	set command "next"
	186	}
96e25403 YQ	187	-re ".gdb_program_name = xstrdup.$gdb_prompt $" {
	188	set description "next over xstrdup"
	189	set command "next"
	190	}
	191	-re ".quit_flag = 0.$gdb_prompt $" {
6d9c3a87 AS	192	set description "step over quit_flag initialization"
	193	set command "step"
	194	}
	195	-re ".gdb_stdout = stdio_fileopen .stdout.;.$gdb_prompt $" {
	196	set description "step over gdb_stdout initialization"
	197	set command "step"
	198	}
	199	-re ".gdb_stderr = stdio_fileopen .stderr.;.$gdb_prompt $" {
	200	set description "step over gdb_stderr initialization"
	201	set command "step"
	202	}
adf40b2e JM	203	-re ".main.c.No such file or directory.*$gdb_prompt $" {
	204	setup_xfail "rs6000--aix3"
	205	fail "must be able to list source lines"
	206	return
	207	}
2fa63963 DJ	208	-re ".interpreter_p = xstrdup.$gdb_prompt $" {
	209	if { $unlikely_line == 0 } {
	210	# This is a GCC optimization bug; a constant has been
	211	# associated with the wrong line number.
	212	setup_xfail "--*" gcc/26475
	213	fail "$description (unlikely line from gcc)"
	214	set unlikely_line 1
	215	}
	216	set description "next over xstrdup"
	217	set command "next"
	218	}
adf40b2e JM	219	-re ".*$gdb_prompt $" {
	220	fail "unknown source line after $description"
	221	return
	222	}
	223	default {
	224	fail "unknown source line near main"
	225	return
	226	}
	227	}
a127f7b4	228	gdb_test_multiple "$command" "$description" {
adf40b2e JM	229	-re ".*No such file or directory.\r\n$gdb_prompt $" {
	230	fail "$description (no source available)"
	231	}
	232	-re ".A file or directory . does not exist..\r\n$gdb_prompt $" {
	233	fail "$description (no source available)"
	234	}
	235	-re ".*$gdb_prompt $" {
	236	pass "$description"
	237	}
adf40b2e JM	238	}
	239	}
	240	}
	241
	242	proc test_with_self { executable } {
	243	global gdb_prompt
	244	global tool
	245	global det_file
	246	global decimal
	247	global timeout
b4ca5ed9	248	global INTERNAL_GDBFLAGS
adf40b2e JM	249
	250	# load yourself into the debugger
	251	# This can take a relatively long time, particularly for testing where
	252	# the executable is being accessed over a network, or where gdb does not
	253	# support partial symbols for a particular target and has to load the
	254	# entire symbol table. Set the timeout to 10 minutes, which should be
	255	# adequate for most environments (it has timed out with 5 min on a
	256	# SPARCstation SLC under moderate load, so this isn't unreasonable).
	257	# After gdb is started, set the timeout to 30 seconds for the duration
	258	# of this test, and then back to the original value.
	259
	260	set oldtimeout $timeout
	261	set timeout 600
	262	verbose "Timeout is now $timeout seconds" 2
3e3ffd2b	263
2db8e78e MC	264	global gdb_file_cmd_debug_info
	265	set gdb_file_cmd_debug_info "unset"
	266
3e3ffd2b	267	set result [gdb_load $executable]
adf40b2e JM	268	set timeout $oldtimeout
	269	verbose "Timeout is now $timeout seconds" 2
	270
2db8e78e MC	271	if { $result != 0 } then {
	272	return -1
	273	}
	274
	275	if { $gdb_file_cmd_debug_info != "debug" } then {
	276	untested "No debug information, skipping testcase."
3e3ffd2b MC	277	return -1
	278	}
	279
adf40b2e JM	280	# disassemble yourself
	281	gdb_test "x/10i main" \
	282	"x/10i.main.main.$decimal.main.$decimal." \
	283	"Disassemble main"
	284
	285	# Set a breakpoint at main
0d06e24b	286	gdb_test "break captured_main" \
adf40b2e	287	"Breakpoint.at. file., line." \
0d06e24b	288	"breakpoint in captured_main"
adf40b2e JM	289
	290	# We'll need this when we send a ^C to GDB. Need to do it before we
	291	# run the program and gdb starts saving and restoring tty states.
	292	# On Ultrix, we don't need it and it is really slow (because shell_escape
	293	# doesn't use vfork).
	294	if ![istarget "--ultrix*"] then {
f6978de9	295	gdb_test "shell stty intr '^C'" ".*" \
adf40b2e JM	296	"set interrupt character in test_with_self"
	297	}
	298
	299	# FIXME: If we put this after the run to main, the first list
	300	# command doesn't print the same line as the current line where
	301	# gdb is stopped.
019ebafc	302	gdb_test_no_output "set listsize 1" "set listsize to 1"
adf40b2e JM	303
	304	# run yourself
	305	# It may take a very long time for the inferior gdb to start (lynx),
	306	# so we bump it back up for the duration of this command.
	307	set timeout 600
	308
0d06e24b	309	set description "run until breakpoint at captured_main"
b4ca5ed9	310	gdb_test_multiple "run $INTERNAL_GDBFLAGS" "$description" {
0d06e24b	311	-re "Starting program.Breakpoint \[0-9\]+,.captured_main .data.* at .main.c:.$gdb_prompt $" {
adf40b2e JM	312	pass "$description"
adf40b2e JM	313	}
0d06e24b	314	-re "Starting program.Breakpoint \[0-9\]+,.captured_main .data.*$gdb_prompt $" {
adf40b2e JM	315	xfail "$description (line numbers scrambled?)"
	316	}
	317	-re "vfork: No more processes.*$gdb_prompt $" {
	318	fail "$description (out of virtual memory)"
	319	set timeout $oldtimeout
	320	verbose "Timeout is now $timeout seconds" 2
	321	return -1
	322	}
	323	-re ".*$gdb_prompt $" {
	324	fail "$description"
	325	set timeout $oldtimeout
	326	verbose "Timeout is now $timeout seconds" 2
	327	return -1
	328	}
adf40b2e JM	329	}
	330
	331	set timeout $oldtimeout
	332	verbose "Timeout is now $timeout seconds" 2
	333
	334	# do we have a version number ?
a127f7b4	335	gdb_test_multiple "print version" "printed version" {
d4f3574e SS	336	-re ".\[0-9\]+ = .\[0-9.\]+.*$gdb_prompt $" {
	337	pass "printed version as string"
	338	}
adf40b2e	339	-re ".\[0-9\]+ = +0x.\[0-9.\]+.$gdb_prompt $" {
d4f3574e	340	pass "printed version as pointer"
adf40b2e JM	341	}
	342	-re ".\[0-9\]+ = +.+ +0x.\[0-9.\]+.$gdb_prompt $" {
	343	pass "printed version with cast"
	344	}
adf40b2e JM	345	}
	346
	347	do_steps_and_nexts
	348
	349	gdb_test "print \"foo\"" ".\[0-9\]+ = \"foo\"" "print a string"
	350
	351	# do_steps_and_nexts left us ready to execute an xmalloc call,
	352	# so give that a try.
	353	# If we don't actually enter the xmalloc call when we give a
	354	# step command that seems like a genuine bug. It seems to happen
	355	# on most RISC processors.
48fe539f DJ	356	# NOTE drow/2003-06-22: However, if we step back to the preceding two
	357	# lines, just keep stepping until we enter.
	358	set stepped_back 0
adf40b2e JM	359	setup_xfail "alpha--" "mips--"
adf40b2e JM	360	set description "step into xmalloc call"
a127f7b4	361	gdb_test_multiple "step" "$description" {
48fe539f DJ	362	-re "ncmd = 0;.*$gdb_prompt $" {
	363	set stepped_back 1
	364	send_gdb "step\n"
	365	exp_continue
	366	}
274bcba0 EZ	367	-re ".cmdarg = . xmalloc.*$gdb_prompt $" {
	368	set stepped_back 1
	369	send_gdb "step\n"
	370	exp_continue
	371	}
48fe539f DJ	372	-re "dirsize = 1;.*$gdb_prompt $" {
	373	set stepped_back 1
	374	send_gdb "step\n"
	375	exp_continue
	376	}
	377	-re ".dirarg = . xmalloc.*$gdb_prompt $" {
	378	if { $stepped_back == 1 } {
	379	send_gdb "step\n"
	380	exp_continue
	381	} else {
	382	fail "$description"
	383	}
	384	}
adf40b2e JM	385	-re "xmalloc.size=.at.utils.c.$gdb_prompt $" {
	386	pass "$description"
	387	}
	388	-re ".*No such file or directory.\r\n$gdb_prompt $" {
	389	pass "$description (no source available)"
	390	}
	391	-re "A file or directory .* does not exist..\r\n$gdb_prompt $" {
	392	pass "$description (no source available)"
	393	}
adf40b2e JM	394	}
	395
	396	# start the "xgdb" process
c0b9f2c6 PA	397	if [target_info exists gdb,noinferiorio] {
	398	# Maybe testing with a local extended-remote gdbserver. With
	399	# no way to interact with inferior GDB, all we can do is let
	400	# it run.
	401	send_gdb "continue\n"
	402	# Wait a bit while the inferior gdb gets to its prompt.
	403	sleep 1
	404	} else {
	405	set test "xgdb is at prompt"
	406	gdb_test_multiple "continue" $test {
	407	-re "GNU gdb \[0-9\.\].Copyright \\(C\\) \[0-9\]* Free Software Foundation, Inc.License GPLv3\\+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.This is free software: you are free to change and redistribute it.There is NO WARRANTY, to the extent permitted by law. Type \"show copying\".and \"show warranty\" for details.This GDB was configured as .$gdb_prompt $" {
	408	pass $test
	409	}
a127f7b4	410	}
c0b9f2c6 PA	411
	412	# set xgdb prompt so we can tell which is which
	413	gdb_test_multiple "set prompt (xgdb) " "Set xgdb_prompt" {
	414	-re "\[(\]xgdb\[)\].*\[(\]xgdb\[)\] $" {
	415	pass "Set xgdb prompt"
	416	}
a127f7b4	417	}
adf40b2e	418	}
c0b9f2c6	419
adf40b2e JM	420	# kill the xgdb process
	421	set description "send ^C to child process"
	422	send_gdb "\003"
	423	gdb_expect {
	424	-re "Program received signal SIGINT.*$gdb_prompt $" {
	425	pass "$description"
	426	}
	427	-re ".*$gdb_prompt $" {
	428	fail "$description"
	429	}
	430	timeout {
	431	fail "$description (timeout)"
	432	}
	433	}
	434
	435	set description "send SIGINT signal to child process"
a127f7b4 MS	436	gdb_test "signal SIGINT" \
	437	"Continuing with signal SIGINT.*" \
	438	"$description"
adf40b2e JM	439
	440	# get a stack trace
	441	#
	442	# This fails on some linux systems for unknown reasons. On the
	443	# systems where it fails, sometimes it works fine when run manually.
	444	# The testsuite failures may not be limited to just aout systems.
634d57ec	445	setup_xfail "i*86-pc-linuxaout-gnu"
adf40b2e	446	set description "backtrace through signal handler"
a127f7b4	447	gdb_test_multiple "backtrace" "$description" {
92806416	448	-re "#0.(read\|poll).in main \\(.\\) at .gdb\\.c.*$gdb_prompt $" {
adf40b2e JM	449	pass "$description"
	450	}
	451	-re ".*$gdb_prompt $" {
	452	# On the alpha, we hit the infamous problem about gdb
	453	# being unable to get the frame pointer (mentioned in
	454	# gdb/README). As it is intermittent, there is no way to
	455	# XFAIL it which will give us an XPASS if the problem goes
	456	# away.
	457	setup_xfail "alpha--osf*"
	458	fail "$description"
	459	}
adf40b2e JM	460	}
	461
	462
	463	# Set the timeout back to the value it had when we were called.
	464	set timeout $oldtimeout
	465	verbose "Timeout is now $timeout seconds" 2
	466
	467	# Restart gdb in case next test expects it to be started already.
	468	return 0
	469	}
	470
	471	# Find a pathname to a file that we would execute if the shell was asked
	472	# to run $arg using the current PATH.
	473
	474	proc find_gdb { arg } {
	475
	476	# If the arg directly specifies an existing executable file, then
	477	# simply use it.
	478
	479	if [file executable $arg] then {
	480	return $arg
	481	}
	482
	483	set result [which $arg]
	484	if [string match "/" [ string range $result 0 0 ]] then {
	485	return $result
	486	}
	487
	488	# If everything fails, just return the unqualified pathname as default
	489	# and hope for best.
	490
	491	return $arg
	492	}
	493
	494	# Run the test with self.
	495	# Copy the file executable file in case this OS doesn't like to edit its own
	496	# text space.
	497
	498	set GDB_FULLPATH [find_gdb $GDB]
	499
	500	# Remove any old copy lying around.
	501	remote_file host delete x$tool
	502
	503	gdb_start
	504	set file [remote_download host $GDB_FULLPATH x$tool]
	505	set result [test_with_self $file];
	506	gdb_exit;
	507	catch "remote_file host delete $file";
	508
	509	if {$result <0} then {
	510	warning "Couldn't test self"
	511	return -1
	512	}