[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.base / overlays.exp

# Copyright 1997-2019 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 Michael Snyder (msnyder@cygnus.com)

#
# test running programs
#


set data_overlays 1

if [istarget "m32r-*-*"] then {
    set linker_script "${srcdir}/${subdir}/m32r.ld"
} elseif [istarget "spu-*-*"] then {
    set linker_script "${srcdir}/${subdir}/spu.ld"
    set data_overlays 0
} else {
    verbose "Skipping overlay test -- not implemented for this target."
    return 
}

if [istarget "*-*-linux*"] then {
    verbose "Skipping overlay test -- Linux doesn't support overlayed programs."
    return 
}

standard_testfile overlays.c ovlymgr.c foo.c bar.c baz.c grbx.c

if {[build_executable $testfile.exp $testfile \
	 [list $srcfile $srcfile2 $srcfile3 $srcfile4 $srcfile5 $srcfile6] \
	 {debug ldscript=-Wl,-T$linker_script}] == -1} {
     untested "failed to compile"
     return -1
}

remote_exec build "mv ${testfile}.o foo.o bar.o baz.o grbx.o ovlymgr.o ${objdir}/${subdir}"


gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

#
# set it up at a breakpoint so we can play with the variable values
#

if ![runto_main] then {
    fail "can't run to main"
    return 0
}

# couple of convenience variables
set fptrcast [string_to_regexp "{int (int)}"]
set iptrcast [string_to_regexp "(int *)"]
set hexx "0x\[0-9abcdefABCDEF\]+"

gdb_test_no_output "overlay manual"
gdb_test "overlay list" "No sections are mapped." "list with none mapped"

# capture the LMA addresses of [foo bar baz grbx foox barx bazx grbxx]

proc get_func_address { func func_sym msg } {
    global gdb_prompt
    global fptrcast
    global hexx

    set func_addr 0
    send_gdb "print $func\n" 
    gdb_expect {
	-re "\\$\[0-9\]+ = $fptrcast (${hexx}) <$func_sym>.*$gdb_prompt $" {
	    set func_addr $expect_out(1,string)
	    pass "get $msg"
	}
	-re ".*$gdb_prompt $" {
	    fail "get $msg"
	}
	default {
	    fail "get $msg (timeout)"
	}
    }
    return $func_addr
}

set foo_lma  [get_func_address "foo"  "\\*foo\\*"  "foo  load address"]
set bar_lma  [get_func_address "bar"  "\\*bar\\*"  "bar  load address"]
set baz_lma  [get_func_address "baz"  "\\*baz\\*"  "baz  load address"]
set grbx_lma [get_func_address "grbx" "\\*grbx\\*" "grbx load address"]

if $data_overlays then {
    gdb_test "print \$foox_lma = &foox" \
	".* $iptrcast 0x.*"  "foox load addr"
    gdb_test "print \$barx_lma = &barx" \
	".* $iptrcast 0x.*"  "barx load addr"
    gdb_test "print \$bazx_lma = &bazx" \
	".* $iptrcast 0x.*"  "bazx load addr"
    gdb_test "print \$grbxx_lma = &grbxx" \
	".* $iptrcast 0x.*" "grbxx load addr"
}

# map each overlay successively, and
# capture the VMA addresses of [foo bar baz grbx foox barx bazx grbxx]

gdb_test "overlay map .ovly0" "" 
gdb_test "overlay list" "Section .ovly0, loaded at.*, mapped at.*" "list ovly0"
set foo_vma [get_func_address "foo"  "foo"  "foo  runtime address"]

gdb_test "overlay map .ovly1" "" 
gdb_test "overlay list" "Section .ovly1, loaded at.*, mapped at.*" "list ovly1"
set bar_vma [get_func_address "bar"  "bar"  "bar  runtime address"]

gdb_test "overlay map .ovly2" "" 
gdb_test "overlay list" "Section .ovly2, loaded at.*, mapped at.*" "list ovly2"
set baz_vma [get_func_address "baz"  "baz"  "baz  runtime address"]

gdb_test "overlay map .ovly3" "" 
gdb_test "overlay list" "Section .ovly3, loaded at.*, mapped at.*" "list ovly3"
set grbx_vma [get_func_address "grbx" "grbx" "grbx runtime address"]

if $data_overlays then {
    gdb_test "overlay map .data00" "" 
    gdb_test "overlay list" "Section .data00, loaded .*, mapped .*" "list data00"
    gdb_test "print \$foox_vma = &foox" \
	".* $iptrcast 0x.*"  "foox runtime addr"

    gdb_test "overlay map .data01" "" 
    gdb_test "overlay list" "Section .data01, loaded .*, mapped .*" "list data01"
    gdb_test "print \$barx_vma = &barx" \
	".* $iptrcast 0x.*"  "barx runtime addr"

    gdb_test "overlay map .data02" "" 
    gdb_test "overlay list" "Section .data02, loaded .*, mapped .*" "list data02"
    gdb_test "print \$bazx_vma = &bazx" \
	".* $iptrcast 0x.*"  "bazx runtime addr"

    gdb_test "overlay map .data03" "" 
    gdb_test "overlay list" "Section .data03, loaded .*, mapped .*" "list data03"
    gdb_test "print \$grbxx_vma = &grbxx" \
	".* $iptrcast 0x.*"  "grbxx runtime addr"
}
# Verify that LMA != VMA

gdb_test "print $foo_lma   != $foo_vma" ".* = 1"   "foo's LMA   != VMA"
gdb_test "print $bar_lma   != $bar_vma" ".* = 1"   "bar's LMA   != VMA"
gdb_test "print $baz_lma   != $baz_vma" ".* = 1"   "baz's LMA   != VMA"
gdb_test "print $grbx_lma  != $grbx_vma" ".* = 1"  "grbx's LMA  != VMA"
if $data_overlays then {
    gdb_test "print \$foox_lma  != \$foox_vma" ".* = 1"  "foox's LMA  != VMA"
    gdb_test "print \$barx_lma  != \$barx_vma" ".* = 1"  "barx's LMA  != VMA"
    gdb_test "print \$bazx_lma  != \$bazx_vma" ".* = 1"  "bazx's LMA  != VMA"
    gdb_test "print \$grbxx_lma != \$grbxx_vma" ".* = 1" "grbxx's LMA != VMA"
}

# Verify that early-mapped overlays have been bumped out 
# by later-mapped overlays layed over in the same VMA range.

send_gdb "overlay list\n"
gdb_expect {
    -re ".*ovly0, " 		{ fail ".ovly0  not unmapped by .ovly1"  }
    -re ".*ovly2, "	 	{ fail ".ovly2  not unmapped by .ovly3"  }
    -re ".*data00,"		{ fail ".data00 not unmapped by .data01" }
    -re ".*data02,"		{ fail ".data02 not unmapped by .data03" }
    -re ".*$gdb_prompt $"	{ pass "automatic unmapping"             }
    timeout			{ fail "(timeout) Automatic unmapping"   }
}

# Verify that both sec1 and sec2 can be loaded simultaneously.
proc simultaneous_pair { sec1 sec2 } {
    global gdb_prompt

    set pairname "$sec1 and $sec2 mapped simultaneously"
    gdb_test "overlay map $sec1" "" "$pairname: map $sec1"
    gdb_test "overlay map $sec2" "" "$pairname: map $sec2"

    set seen_sec1 0
    set seen_sec2 0

    send_gdb "overlay list\n"
    gdb_expect {
        -re ".*[string_to_regexp $sec1], " { set seen_sec1 1; exp_continue }
        -re ".*[string_to_regexp $sec2], " { set seen_sec2 1; exp_continue }
        -re ".*$gdb_prompt $" {
            if {$seen_sec1 && $seen_sec2} {
                pass "$pairname"
            } else {
                fail "$pairname"
            }
        }
        timeout { fail "(timeout) $pairname" }
    }
}

simultaneous_pair .ovly0 .ovly2
simultaneous_pair .ovly0 .ovly3
simultaneous_pair .ovly1 .ovly2
simultaneous_pair .ovly1 .ovly3

if $data_overlays then {
    simultaneous_pair .data00 .data02
    simultaneous_pair .data00 .data03
    simultaneous_pair .data01 .data02
    simultaneous_pair .data01 .data03
}

# test automatic mode

gdb_test_no_output "overlay auto"
gdb_test "overlay list" "No sections are mapped." "list none mapped (auto)"
gdb_test "break foo"  "Breakpoint .*at .*file .*foo.c.*"  "break foo"
gdb_test "break bar"  "Breakpoint .*at .*file .*bar.c.*"  "break bar"
gdb_test "break baz"  "Breakpoint .*at .*file .*baz.c.*"  "break baz"
gdb_test "break grbx" "Breakpoint .*at .*file .*grbx.c.*" "break grbx"

send_gdb "continue\n"
gdb_expect {
    -re "Breakpoint .* foo .x=1. at .*$gdb_prompt $" { pass   "hit foo" }
    -re ".*$gdb_prompt $"			     { fail   "hit foo" }
    timeout				     { fail "(timeout) hit foo" }
}

send_gdb "backtrace\n"
gdb_expect {
    -re "#0 .*foo .*#1 .*main .*$gdb_prompt $"       { pass   "BT foo" }
    -re ".*$gdb_prompt $"			     { fail   "BT foo" }
    timeout				     { fail "(timeout) BT foo" }
}


send_gdb "continue\n"
gdb_expect {
    -re "Breakpoint .* bar .x=1. at .*$gdb_prompt $" { pass   "hit bar" }
    -re ".*$gdb_prompt $"			     { fail   "hit bar" }
    timeout				     { fail "(timeout) hit bar" }
}

send_gdb "backtrace\n"
gdb_expect {
    -re "#0 .*bar .*#1 .*main .*$gdb_prompt $"       { pass   "BT bar" }
    -re ".*$gdb_prompt $"			     { fail   "BT bar" }
    timeout				     { fail "(timeout) BT bar" }
}

send_gdb "continue\n"
gdb_expect {
    -re "Breakpoint .* baz .x=1. at .*$gdb_prompt $" { pass   "hit baz" }
    -re ".*$gdb_prompt $"			     { fail   "hit baz" }
    timeout				     { fail "(timeout) hit baz" }
}

send_gdb "backtrace\n"
gdb_expect {
    -re "#0 .*baz .*#1 .*main .*$gdb_prompt $"       { pass   "BT baz" }
    -re ".*$gdb_prompt $"			     { fail   "BT baz" }
    timeout				     { fail "(timeout) BT baz" }
}

send_gdb "continue\n"
gdb_expect {
    -re "Breakpoint .* grbx .x=1. at .*$gdb_prompt $" { pass   "hit grbx" }
    -re ".*$gdb_prompt $"			      { fail   "hit grbx" }
    timeout				      { fail "(timeout) hit grbx" }
}

send_gdb "backtrace\n"
gdb_expect {
    -re "#0 .*grbx .*#1 .*main .*$gdb_prompt $"      { pass   "BT grbx" }
    -re ".*$gdb_prompt $"			     { fail   "BT grbx" }
    timeout				     { fail "(timeout) BT grbx" }
}
Commit	Line	Data
42a4f53d	1	# Copyright 1997-2019 Free Software Foundation, Inc.
c906108c SS	2	#
	3	# This program is free software; you can redistribute it and/or modify
	4	# it under the terms of the GNU General Public License as published by
e22f8b7c	5	# the Free Software Foundation; either version 3 of the License, or
c906108c	6	# (at your option) any later version.
e22f8b7c	7	#
c906108c SS	8	# This program is distributed in the hope that it will be useful,
	9	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	# GNU General Public License for more details.
e22f8b7c	12	#
c906108c	13	# You should have received a copy of the GNU General Public License
e22f8b7c	14	# along with this program. If not, see <http://www.gnu.org/licenses/>.
c7b778ff	15	#
c906108c SS	16	# This file was written by Michael Snyder (msnyder@cygnus.com)
c906108c SS	17
c906108c SS	18	#
	19	# test running programs
	20	#
	21
c906108c	22
83547f02 UW	23	set data_overlays 1
83547f02 UW	24
c1862d0f	25	if [istarget "m32r--"] then {
4ec70201	26	set linker_script "${srcdir}/${subdir}/m32r.ld"
83547f02	27	} elseif [istarget "spu--"] then {
4ec70201	28	set linker_script "${srcdir}/${subdir}/spu.ld"
83547f02	29	set data_overlays 0
c906108c SS	30	} else {
	31	verbose "Skipping overlay test -- not implemented for this target."
	32	return
	33	}
	34
6be3092d KI	35	if [istarget "--linux*"] then {
	36	verbose "Skipping overlay test -- Linux doesn't support overlayed programs."
	37	return
	38	}
	39
822bd149	40	standard_testfile overlays.c ovlymgr.c foo.c bar.c baz.c grbx.c
c906108c	41
822bd149 TT	42	if {[build_executable $testfile.exp $testfile \
	43	[list $srcfile $srcfile2 $srcfile3 $srcfile4 $srcfile5 $srcfile6] \
	44	{debug ldscript=-Wl,-T$linker_script}] == -1} {
84c93cd5	45	untested "failed to compile"
b60f0898	46	return -1
c906108c SS	47	}
	48
	49	remote_exec build "mv ${testfile}.o foo.o bar.o baz.o grbx.o ovlymgr.o ${objdir}/${subdir}"
	50
	51
	52	gdb_start
	53	gdb_reinitialize_dir $srcdir/$subdir
	54	gdb_load ${binfile}
	55
	56	#
	57	# set it up at a breakpoint so we can play with the variable values
	58	#
	59
	60	if ![runto_main] then {
c8ee3f04 PW	61	fail "can't run to main"
c8ee3f04 PW	62	return 0
c906108c SS	63	}
	64
	65	# couple of convenience variables
c5984d70	66	set fptrcast [string_to_regexp "{int (int)}"]
c906108c	67	set iptrcast [string_to_regexp "(int *)"]
c5984d70	68	set hexx "0x\[0-9abcdefABCDEF\]+"
c906108c	69
27d3a1a2	70	gdb_test_no_output "overlay manual"
cdc7edd7	71	gdb_test "overlay list" "No sections are mapped." "list with none mapped"
c906108c SS	72
	73	# capture the LMA addresses of [foo bar baz grbx foox barx bazx grbxx]
	74
c5984d70 MS	75	proc get_func_address { func func_sym msg } {
	76	global gdb_prompt
	77	global fptrcast
	78	global hexx
	79
	80	set func_addr 0
	81	send_gdb "print $func\n"
	82	gdb_expect {
	83	-re "\\$\[0-9\]+ = $fptrcast (${hexx}) <$func_sym>.*$gdb_prompt $" {
	84	set func_addr $expect_out(1,string)
	85	pass "get $msg"
	86	}
	87	-re ".*$gdb_prompt $" {
	88	fail "get $msg"
	89	}
	90	default {
	91	fail "get $msg (timeout)"
	92	}
	93	}
	94	return $func_addr
	95	}
	96
	97	set foo_lma [get_func_address "foo" "\\foo\\" "foo load address"]
	98	set bar_lma [get_func_address "bar" "\\bar\\" "bar load address"]
	99	set baz_lma [get_func_address "baz" "\\baz\\" "baz load address"]
	100	set grbx_lma [get_func_address "grbx" "\\grbx\\" "grbx load address"]
	101
83547f02 UW	102	if $data_overlays then {
83547f02 UW	103	gdb_test "print \$foox_lma = &foox" \
c906108c	104	".* $iptrcast 0x.*" "foox load addr"
83547f02	105	gdb_test "print \$barx_lma = &barx" \
c906108c	106	".* $iptrcast 0x.*" "barx load addr"
83547f02	107	gdb_test "print \$bazx_lma = &bazx" \
c906108c	108	".* $iptrcast 0x.*" "bazx load addr"
83547f02	109	gdb_test "print \$grbxx_lma = &grbxx" \
c906108c	110	".* $iptrcast 0x.*" "grbxx load addr"
83547f02	111	}
c906108c SS	112
	113	# map each overlay successively, and
	114	# capture the VMA addresses of [foo bar baz grbx foox barx bazx grbxx]
	115
	116	gdb_test "overlay map .ovly0" ""
cdc7edd7	117	gdb_test "overlay list" "Section .ovly0, loaded at., mapped at." "list ovly0"
c5984d70	118	set foo_vma [get_func_address "foo" "foo" "foo runtime address"]
c906108c SS	119
c906108c SS	120	gdb_test "overlay map .ovly1" ""
cdc7edd7	121	gdb_test "overlay list" "Section .ovly1, loaded at., mapped at." "list ovly1"
c5984d70	122	set bar_vma [get_func_address "bar" "bar" "bar runtime address"]
c906108c SS	123
c906108c SS	124	gdb_test "overlay map .ovly2" ""
cdc7edd7	125	gdb_test "overlay list" "Section .ovly2, loaded at., mapped at." "list ovly2"
c5984d70	126	set baz_vma [get_func_address "baz" "baz" "baz runtime address"]
c906108c SS	127
c906108c SS	128	gdb_test "overlay map .ovly3" ""
cdc7edd7	129	gdb_test "overlay list" "Section .ovly3, loaded at., mapped at." "list ovly3"
c5984d70	130	set grbx_vma [get_func_address "grbx" "grbx" "grbx runtime address"]
c906108c	131
83547f02 UW	132	if $data_overlays then {
83547f02 UW	133	gdb_test "overlay map .data00" ""
cdc7edd7	134	gdb_test "overlay list" "Section .data00, loaded ., mapped ." "list data00"
83547f02	135	gdb_test "print \$foox_vma = &foox" \
c906108c SS	136	".* $iptrcast 0x.*" "foox runtime addr"
c906108c SS	137
83547f02	138	gdb_test "overlay map .data01" ""
cdc7edd7	139	gdb_test "overlay list" "Section .data01, loaded ., mapped ." "list data01"
83547f02	140	gdb_test "print \$barx_vma = &barx" \
c906108c SS	141	".* $iptrcast 0x.*" "barx runtime addr"
c906108c SS	142
83547f02	143	gdb_test "overlay map .data02" ""
cdc7edd7	144	gdb_test "overlay list" "Section .data02, loaded ., mapped ." "list data02"
83547f02	145	gdb_test "print \$bazx_vma = &bazx" \
c906108c SS	146	".* $iptrcast 0x.*" "bazx runtime addr"
c906108c SS	147
83547f02	148	gdb_test "overlay map .data03" ""
cdc7edd7	149	gdb_test "overlay list" "Section .data03, loaded ., mapped ." "list data03"
83547f02	150	gdb_test "print \$grbxx_vma = &grbxx" \
c906108c	151	".* $iptrcast 0x.*" "grbxx runtime addr"
83547f02	152	}
c906108c SS	153	# Verify that LMA != VMA
c906108c SS	154
c5984d70 MS	155	gdb_test "print $foo_lma != $foo_vma" ".* = 1" "foo's LMA != VMA"
	156	gdb_test "print $bar_lma != $bar_vma" ".* = 1" "bar's LMA != VMA"
	157	gdb_test "print $baz_lma != $baz_vma" ".* = 1" "baz's LMA != VMA"
	158	gdb_test "print $grbx_lma != $grbx_vma" ".* = 1" "grbx's LMA != VMA"
83547f02 UW	159	if $data_overlays then {
	160	gdb_test "print \$foox_lma != \$foox_vma" ".* = 1" "foox's LMA != VMA"
	161	gdb_test "print \$barx_lma != \$barx_vma" ".* = 1" "barx's LMA != VMA"
	162	gdb_test "print \$bazx_lma != \$bazx_vma" ".* = 1" "bazx's LMA != VMA"
	163	gdb_test "print \$grbxx_lma != \$grbxx_vma" ".* = 1" "grbxx's LMA != VMA"
	164	}
c906108c SS	165
	166	# Verify that early-mapped overlays have been bumped out
	167	# by later-mapped overlays layed over in the same VMA range.
	168
	169	send_gdb "overlay list\n"
	170	gdb_expect {
	171	-re ".*ovly0, " { fail ".ovly0 not unmapped by .ovly1" }
	172	-re ".*ovly2, " { fail ".ovly2 not unmapped by .ovly3" }
	173	-re ".*data00," { fail ".data00 not unmapped by .data01" }
	174	-re ".*data02," { fail ".data02 not unmapped by .data03" }
bc6c7af4	175	-re ".*$gdb_prompt $" { pass "automatic unmapping" }
c906108c SS	176	timeout { fail "(timeout) Automatic unmapping" }
	177	}
	178
ffd61a58 MS	179	# Verify that both sec1 and sec2 can be loaded simultaneously.
	180	proc simultaneous_pair { sec1 sec2 } {
	181	global gdb_prompt
	182
	183	set pairname "$sec1 and $sec2 mapped simultaneously"
	184	gdb_test "overlay map $sec1" "" "$pairname: map $sec1"
	185	gdb_test "overlay map $sec2" "" "$pairname: map $sec2"
	186
	187	set seen_sec1 0
	188	set seen_sec2 0
	189
	190	send_gdb "overlay list\n"
	191	gdb_expect {
	192	-re ".*[string_to_regexp $sec1], " { set seen_sec1 1; exp_continue }
	193	-re ".*[string_to_regexp $sec2], " { set seen_sec2 1; exp_continue }
	194	-re ".*$gdb_prompt $" {
	195	if {$seen_sec1 && $seen_sec2} {
	196	pass "$pairname"
	197	} else {
	198	fail "$pairname"
	199	}
	200	}
	201	timeout { fail "(timeout) $pairname" }
	202	}
	203	}
	204
	205	simultaneous_pair .ovly0 .ovly2
	206	simultaneous_pair .ovly0 .ovly3
	207	simultaneous_pair .ovly1 .ovly2
	208	simultaneous_pair .ovly1 .ovly3
	209
83547f02 UW	210	if $data_overlays then {
	211	simultaneous_pair .data00 .data02
	212	simultaneous_pair .data00 .data03
	213	simultaneous_pair .data01 .data02
	214	simultaneous_pair .data01 .data03
	215	}
ffd61a58	216
c906108c SS	217	# test automatic mode
c906108c SS	218
27d3a1a2	219	gdb_test_no_output "overlay auto"
cdc7edd7	220	gdb_test "overlay list" "No sections are mapped." "list none mapped (auto)"
c906108c SS	221	gdb_test "break foo" "Breakpoint .at .file .foo.c." "break foo"
	222	gdb_test "break bar" "Breakpoint .at .file .bar.c." "break bar"
	223	gdb_test "break baz" "Breakpoint .at .file .baz.c." "break baz"
	224	gdb_test "break grbx" "Breakpoint .at .file .grbx.c." "break grbx"
	225
	226	send_gdb "continue\n"
	227	gdb_expect {
	228	-re "Breakpoint .* foo .x=1. at .*$gdb_prompt $" { pass "hit foo" }
	229	-re ".*$gdb_prompt $" { fail "hit foo" }
	230	timeout { fail "(timeout) hit foo" }
	231	}
	232
	233	send_gdb "backtrace\n"
	234	gdb_expect {
	235	-re "#0 .foo .#1 .main .$gdb_prompt $" { pass "BT foo" }
	236	-re ".*$gdb_prompt $" { fail "BT foo" }
	237	timeout { fail "(timeout) BT foo" }
	238	}
	239
	240
	241	send_gdb "continue\n"
	242	gdb_expect {
	243	-re "Breakpoint .* bar .x=1. at .*$gdb_prompt $" { pass "hit bar" }
	244	-re ".*$gdb_prompt $" { fail "hit bar" }
	245	timeout { fail "(timeout) hit bar" }
	246	}
	247
	248	send_gdb "backtrace\n"
	249	gdb_expect {
	250	-re "#0 .bar .#1 .main .$gdb_prompt $" { pass "BT bar" }
	251	-re ".*$gdb_prompt $" { fail "BT bar" }
	252	timeout { fail "(timeout) BT bar" }
	253	}
	254
	255	send_gdb "continue\n"
	256	gdb_expect {
	257	-re "Breakpoint .* baz .x=1. at .*$gdb_prompt $" { pass "hit baz" }
	258	-re ".*$gdb_prompt $" { fail "hit baz" }
	259	timeout { fail "(timeout) hit baz" }
	260	}
	261
	262	send_gdb "backtrace\n"
	263	gdb_expect {
	264	-re "#0 .baz .#1 .main .$gdb_prompt $" { pass "BT baz" }
	265	-re ".*$gdb_prompt $" { fail "BT baz" }
	266	timeout { fail "(timeout) BT baz" }
	267	}
	268
	269	send_gdb "continue\n"
	270	gdb_expect {
	271	-re "Breakpoint .* grbx .x=1. at .*$gdb_prompt $" { pass "hit grbx" }
	272	-re ".*$gdb_prompt $" { fail "hit grbx" }
	273	timeout { fail "(timeout) hit grbx" }
	274	}
	275
	276	send_gdb "backtrace\n"
	277	gdb_expect {
	278	-re "#0 .grbx .#1 .main .$gdb_prompt $" { pass "BT grbx" }
	279	-re ".*$gdb_prompt $" { fail "BT grbx" }
	280	timeout { fail "(timeout) BT grbx" }
	281	}
	282