[thirdparty/binutils-gdb.git] / gdb / testsuite / gdb.arch / amd64-invalid-stack-middle.exp

# Copyright (C) 2014-2022 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/>.

# In this test we're looking at how gdb handles backtraces and
# investigating the stack depth when confronted with an "invalid" stack,
# that is a stack where the first few frames are normal, and then there's a
# frame where the stack in unreadable.
#
# One interesting bug that has been observed is that gdb will sometime
# exhibit different behaviour the first time a stack command is run
# compared to the second (and later) times a command is run.  This is
# because the first time a command is run gdb actually tries to figure out
# the answer, while the second (and later) times gdb relies on the answer
# cached from the first time.  As a result in this test each command is
# run twice, and we restart gdb before testing each different command to
# ensure that nothing is being cached.

standard_testfile .S

if { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
    verbose "Skipping ${testfile}."
    return
}

if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {nopie}] } {
    return -1
}

if ![runto breakpt] {
    return -1
}

gdb_test "bt" "^bt\r\n#0 +breakpt *\\(\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in func5\[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in func4\[^\r\n\]*\r\n#3 +0x\[0-9a-f\]+ in func3\[^\r\n\]*\r\nBacktrace stopped: Cannot access memory at address 0x\[0-9a-f\]+" \
	 "first backtrace, with error message"

gdb_test "bt" "^bt\r\n#0 +breakpt *\\(\\) \[^\r\n\]*\r\n#1 +0x\[0-9a-f\]+ in func5\[^\r\n\]*\r\n#2 +0x\[0-9a-f\]+ in func4\[^\r\n\]*\r\n#3 +0x\[0-9a-f\]+ in func3\[^\r\n\]*\r\nBacktrace stopped: Cannot access memory at address 0x\[0-9a-f\]+" \
	 "second backtrace, with error message"

clean_restart ${binfile}

if ![runto breakpt] {
    return -1
}

gdb_test "interpreter-exec mi \"-stack-info-depth\"" \
    "\\^done,depth=\"4\"" \
    "check mi -stack-info-depth command, first time"

gdb_test "interpreter-exec mi \"-stack-info-depth\"" \
    "\\^done,depth=\"4\"" \
    "check mi -stack-info-depth command, second time"

clean_restart ${binfile}

if ![runto breakpt] {
    return -1
}

gdb_test "interpreter-exec mi \"-stack-list-frames\"" \
    "\\^done,stack=\\\[frame=\{level=\"0\",addr=\"$hex\",func=\"breakpt\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"1\",addr=\"$hex\",func=\"func5\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"2\",addr=\"$hex\",func=\"func4\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"3\",addr=\"$hex\",func=\"func3\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\}\\\]" \
    "check mi -stack-list-frames command, first time"

gdb_test "interpreter-exec mi \"-stack-list-frames\"" \
    "\\^done,stack=\\\[frame=\{level=\"0\",addr=\"$hex\",func=\"breakpt\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"1\",addr=\"$hex\",func=\"func5\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"2\",addr=\"$hex\",func=\"func4\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"3\",addr=\"$hex\",func=\"func3\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\}\\\]" \
    "check mi -stack-list-frames command, second time"
Commit	Line	Data
4a94e368	1	# Copyright (C) 2014-2022 Free Software Foundation, Inc.
938f0e2f AB	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 3 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, see <http://www.gnu.org/licenses/>.
	15
	16	# In this test we're looking at how gdb handles backtraces and
	17	# investigating the stack depth when confronted with an "invalid" stack,
	18	# that is a stack where the first few frames are normal, and then there's a
	19	# frame where the stack in unreadable.
	20	#
	21	# One interesting bug that has been observed is that gdb will sometime
	22	# exhibit different behaviour the first time a stack command is run
	23	# compared to the second (and later) times a command is run. This is
	24	# because the first time a command is run gdb actually tries to figure out
	25	# the answer, while the second (and later) times gdb relies on the answer
	26	# cached from the first time. As a result in this test each command is
	27	# run twice, and we restart gdb before testing each different command to
	28	# ensure that nothing is being cached.
	29
938f0e2f AB	30	standard_testfile .S
	31
	32	if { ![istarget x86_64-- ] \|\| ![is_lp64_target] } {
	33	verbose "Skipping ${testfile}."
	34	return
	35	}
	36
6e8b1ab2	37	if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {nopie}] } {
938f0e2f AB	38	return -1
	39	}
	40
	41	if ![runto breakpt] {
	42	return -1
	43	}
	44
53e8a631	45	gdb_test "bt" "^bt\r\n#0 +breakpt \\(\\) \[^\r\n\]\r\n#1 +0x\[0-9a-f\]+ in func5\[^\r\n\]\r\n#2 +0x\[0-9a-f\]+ in func4\[^\r\n\]\r\n#3 +0x\[0-9a-f\]+ in func3\[^\r\n\]*\r\nBacktrace stopped: Cannot access memory at address 0x\[0-9a-f\]+" \
938f0e2f AB	46	"first backtrace, with error message"
938f0e2f AB	47
53e8a631 AB	48	gdb_test "bt" "^bt\r\n#0 +breakpt \\(\\) \[^\r\n\]\r\n#1 +0x\[0-9a-f\]+ in func5\[^\r\n\]\r\n#2 +0x\[0-9a-f\]+ in func4\[^\r\n\]\r\n#3 +0x\[0-9a-f\]+ in func3\[^\r\n\]*\r\nBacktrace stopped: Cannot access memory at address 0x\[0-9a-f\]+" \
53e8a631 AB	49	"second backtrace, with error message"
938f0e2f AB	50
	51	clean_restart ${binfile}
	52
	53	if ![runto breakpt] {
	54	return -1
	55	}
	56
53e8a631 AB	57	gdb_test "interpreter-exec mi \"-stack-info-depth\"" \
	58	"\\^done,depth=\"4\"" \
	59	"check mi -stack-info-depth command, first time"
938f0e2f AB	60
	61	gdb_test "interpreter-exec mi \"-stack-info-depth\"" \
	62	"\\^done,depth=\"4\"" \
	63	"check mi -stack-info-depth command, second time"
	64
	65	clean_restart ${binfile}
	66
	67	if ![runto breakpt] {
	68	return -1
	69	}
	70
53e8a631	71	gdb_test "interpreter-exec mi \"-stack-list-frames\"" \
b4c0d1a4	72	"\\^done,stack=\\\[frame=\{level=\"0\",addr=\"$hex\",func=\"breakpt\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"1\",addr=\"$hex\",func=\"func5\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"2\",addr=\"$hex\",func=\"func4\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"3\",addr=\"$hex\",func=\"func3\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\}\\\]" \
53e8a631	73	"check mi -stack-list-frames command, first time"
938f0e2f AB	74
938f0e2f AB	75	gdb_test "interpreter-exec mi \"-stack-list-frames\"" \
b4c0d1a4	76	"\\^done,stack=\\\[frame=\{level=\"0\",addr=\"$hex\",func=\"breakpt\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"1\",addr=\"$hex\",func=\"func5\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"2\",addr=\"$hex\",func=\"func4\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\},frame=\{level=\"3\",addr=\"$hex\",func=\"func3\",file=\"\[^\"\]+\",fullname=\"\[^\"\]+\",line=\"${decimal}\"(,arch=\"\[^\"\]+\")?\}\\\]" \
938f0e2f	77	"check mi -stack-list-frames command, second time"