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# Copyright 2015-2018 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/>.
# Test thread ID parsing and display.
load_lib gdb-python.exp
standard_testfile
# Multiple inferiors are needed, therefore both native and extended
# gdbserver modes are supported. Only non-extended gdbserver is not
# supported.
if [target_info exists use_gdb_stub] {
untested "using gdb stub"
return
}
if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {pthreads debug}] } {
return -1
}
clean_restart ${testfile}
if { ![runto_main] } then {
return -1
}
# Issue "thread apply TID_LIST p 1234" and expect EXP_TID_LIST (a list
# of thread ids) to be displayed.
proc thread_apply {tid_list exp_tid_list {message ""}} {
global decimal
set any "\[^\r\n\]*"
set expected [string_to_regexp $exp_tid_list]
set r ""
foreach tid $expected {
append r "\[\r\n\]+"
append r "Thread $tid $any:\r\n"
append r "\\$$decimal = 1234"
}
set cmd "thread apply $tid_list"
if {$message == ""} {
set message $cmd
}
gdb_test "$cmd p 1234" $r $message
}
# Issue "info threads TID_LIST" and expect EXP_TID_LIST (a list of
# thread ids) to be displayed.
proc info_threads {tid_list exp_tid_list {message ""}} {
set any "\[^\r\n\]*"
set expected [string_to_regexp $exp_tid_list]
set r [join $expected " ${any}\r\n${any} "]
set r "${any} $r ${any}"
set cmd "info threads $tid_list"
if {$message == ""} {
set message $cmd
}
gdb_test $cmd $r $message
}
# Issue "info threads TID_LIST" and expect INFO_THR output. Then
# issue "thread apply TID_LIST" and expect THR_APPLY output. If
# THR_APPLY is omitted, INFO_THR is expected instead.
proc thr_apply_info_thr {tid_list info_thr {thr_apply ""}} {
if {$thr_apply == ""} {
set thr_apply $info_thr
}
info_threads $tid_list $info_thr
thread_apply $tid_list $thr_apply
}
# Issue both "info threads TID_LIST" and "thread apply TID_LIST" and
# expect both commands to error out with EXP_ERROR.
proc thr_apply_info_thr_error {tid_list exp_error} {
gdb_test "info threads $tid_list" \
$exp_error
gdb_test "thread apply $tid_list" \
$exp_error \
"thread apply $tid_list"
}
# Issue both "info threads TID_LIST" and "thread apply TID_LIST" and
# expect the command to error out with "Invalid thread ID: $EXPECTED".
# EXPECTED is a literal string, not a regexp. If EXPECTED is omitted,
# TID_LIST is expected instead.
proc thr_apply_info_thr_invalid {tid_list {expected ""}} {
if {$expected == ""} {
set expected $tid_list
}
set expected [string_to_regexp $expected]
gdb_test "info threads $tid_list" \
"Invalid thread ID: $expected"
gdb_test "thread apply $tid_list p 1234" \
"Invalid thread ID: $expected p 1234" \
"thread apply $tid_list"
}
# "info threads" while there's only inferior 1 should show
# single-number thread IDs.
with_test_prefix "single inferior" {
info_threads "" "1"
gdb_test "thread" "Current thread is 1 .*"
}
# "info threads" while there are multiple inferiors should show
# qualified thread IDs.
with_test_prefix "two inferiors" {
# Add another inferior.
gdb_test "add-inferior" "Added inferior 2.*" "add empty inferior 2"
# Now that we've added another inferior, thread IDs now show the
# inferior number.
info_threads "" "1.1"
gdb_test "thread" "Current thread is 1\.1 .*"
gdb_test "inferior 2" "Switching to inferior 2 .*" "switch to inferior 2"
gdb_test "file ${binfile}" ".*" "load file in inferior 2"
runto_main
# Now that we've added another inferior, thread IDs now show the
# inferior number.
info_threads "" "1.1 2.1" \
"info threads show inferior numbers"
gdb_test "thread" "Current thread is 2\.1 .*" \
"switch to thread using extended thread ID"
gdb_breakpoint "thread_function1"
gdb_continue_to_breakpoint "once"
gdb_test "inferior 1" "Switching to inferior 1 .*"
gdb_continue_to_breakpoint "twice"
info_threads "" "1.1 1.2 2.1 2.2" \
"info threads again"
# Same, but show the global ID.
gdb_test "info threads -gid" \
[multi_line \
" 1\.1 +1 +.*" \
"\\* 1\.2 +4 +.* thread_function1 .* at .*$srcfile:.*" \
" 2\.1 +2 +.*" \
" 2\.2 +3 +.* thread_function1 .* at .*$srcfile:.*"]
# Confirm the convenience variables show the expected numbers.
gdb_test "p \$_thread == 2" " = 1"
gdb_test "p \$_gthread == 4" " = 1"
# Without an explicit inferior component, GDB defaults to the
# current inferior. Make sure we don't refer to a thread by
# global ID by mistake.
gdb_test "thread 4" "Unknown thread 1.4\\."
# Test thread ID list parsing. Test qualified and unqualified
# IDs; qualified and unqualified ranges; invalid IDs and invalid
# ranges.
# First spawn a couple more threads so ranges includes more than
# two threads.
with_test_prefix "more threads" {
gdb_breakpoint "thread_function2"
gdb_test "inferior 2" "Switching to inferior 2 .*"
gdb_continue_to_breakpoint "once"
gdb_test "inferior 1" "Switching to inferior 1 .*"
gdb_continue_to_breakpoint "twice"
}
thr_apply_info_thr "1" \
"1.1"
thr_apply_info_thr "1.1" \
"1.1"
thr_apply_info_thr "1 2 3" \
"1.1 1.2 1.3"
# Same, but with qualified thread IDs.
thr_apply_info_thr "1.1 1.2 1.3 2.1 2.2" \
"1.1 1.2 1.3 2.1 2.2"
# Test a thread number range.
thr_apply_info_thr "1-3" \
"1.1 1.2 1.3"
# Same, but using a qualified range.
thr_apply_info_thr "1.1-3" \
"1.1 1.2 1.3"
# A mix of qualified and unqualified thread IDs/ranges.
thr_apply_info_thr "1.1 2-3" \
"1.1 1.2 1.3"
thr_apply_info_thr "1 1.2-3" \
"1.1 1.2 1.3"
# Likewise, but mix inferiors too.
thr_apply_info_thr "2.1 2-3" \
"1.2 1.3 2.1" \
"2.1 1.2 1.3"
# Multiple ranges with mixed explicit inferiors.
thr_apply_info_thr "1.1-2 2.2-3" \
"1.1 1.2 2.2 2.3"
# All threads.
thread_apply "all" \
"2.3 2.2 2.1 1.3 1.2 1.1"
thread_apply "all -ascending" \
"1.1 1.2 1.3 2.1 2.2 2.3"
# Now test using GDB convenience variables.
gdb_test "p \$inf = 1" " = 1"
gdb_test "p \$thr_start = 2" " = 2"
gdb_test "p \$thr_end = 3" " = 3"
# Convenience variable for the inferior number, only.
thr_apply_info_thr "\$inf.2" \
"1.2"
thr_apply_info_thr "\$inf.2-3" \
"1.2 1.3"
# Convenience variables for thread numbers as well.
foreach prefix {"" "1." "\$inf."} {
thr_apply_info_thr "${prefix}\$thr_start" \
"1.2"
thr_apply_info_thr "${prefix}\$thr_start-\$thr_end" \
"1.2 1.3"
thr_apply_info_thr "${prefix}2-\$thr_end" \
"1.2 1.3"
thr_apply_info_thr "${prefix}\$thr_start-3" \
"1.2 1.3"
# Undefined convenience variable.
set prefix_re [string_to_regexp $prefix]
thr_apply_info_thr_error "${prefix}\$conv123" \
[multi_line \
"Convenience variable must have integer value\." \
"Invalid thread ID: ${prefix_re}\\\$conv123"]
}
# Convenience variables pointing at an inexisting thread and/or
# inferior.
gdb_test "p \$inf = 30" " = 30"
gdb_test "p \$thr = 20" " = 20"
# Try both the convenience variable and the literal number.
foreach thr {"\$thr" "20" "1.20" "\$inf.1" "30.1" } {
set expected [string_to_regexp $thr]
gdb_test "info threads $thr" "No threads match '${expected}'."
# "info threads" works like a filter. If there's any other
# valid thread in the list, there's no error.
info_threads "$thr 1.1" "1.1"
info_threads "1.1 $thr" "1.1"
}
gdb_test "thread apply \$thr p 1234" \
"warning: Unknown thread 1.20" \
"thread apply \$thr"
gdb_test "thread apply \$inf.1 p 1234" \
"warning: Unknown thread 30.1" \
"thread apply \$inf.1"
# Star ranges.
thr_apply_info_thr "1.*" \
"1.1 1.2 1.3"
thr_apply_info_thr "*" \
"1.1 1.2 1.3"
thr_apply_info_thr "1.* 2.1" \
"1.1 1.2 1.3 2.1"
thr_apply_info_thr "2.1 1.*" \
"1.1 1.2 1.3 2.1" \
"2.1 1.1 1.2 1.3"
thr_apply_info_thr "1.* 2.*" \
"1.1 1.2 1.3 2.1 2.2 2.3"
thr_apply_info_thr "2.* 1.*" \
"1.1 1.2 1.3 2.1 2.2 2.3" \
"2.1 2.2 2.3 1.1 1.2 1.3"
# There's no inferior 3, but "info threads" treats the thread list
# as a filter, so it's OK. "thread apply" complains about the
# unknown inferior through.
info_threads "1.1 3.*" \
"1.1"
gdb_test "thread apply 1.1 3.* p 1" \
"Thread 1.1.*warning: Unknown inferior 3"
# Now test a set of invalid thread IDs/ranges.
thr_apply_info_thr_invalid "1." \
"1."
thr_apply_info_thr_invalid "1-3 1." \
"1."
thr_apply_info_thr_invalid "1.1.1" \
"1.1.1"
thr_apply_info_thr_invalid "2 1.1.1" \
"1.1.1"
thr_apply_info_thr_invalid "1.1.1 2" \
"1.1.1 2"
thr_apply_info_thr_invalid "1-2.1" \
"1-2.1"
gdb_test "p \$zero = 0" " = 0"
gdb_test "p \$one = 1" " = 1"
gdb_test "p \$minus_one = -11" " = -11"
foreach prefix {"" "1." "$one."} {
set prefix_re [string_to_regexp $prefix]
thr_apply_info_thr_invalid "${prefix}foo"
thr_apply_info_thr_invalid "${prefix}1foo"
thr_apply_info_thr_invalid "${prefix}foo1"
thr_apply_info_thr_error "${prefix}1-0" "inverted range"
thr_apply_info_thr_error "${prefix}1-\$zero" "inverted range"
thr_apply_info_thr_error "${prefix}\$one-0" "inverted range"
thr_apply_info_thr_error "${prefix}\$one-\$zero" "inverted range"
thr_apply_info_thr_error "${prefix}1-" "inverted range"
thr_apply_info_thr_error "${prefix}2-1" "inverted range"
thr_apply_info_thr_error "${prefix}2-\$one" "inverted range"
thr_apply_info_thr_error "${prefix}-1" "negative value"
thr_apply_info_thr_error "${prefix}-\$one" "negative value"
thr_apply_info_thr_error "${prefix}\$minus_one" \
"negative value: ${prefix_re}\\\$minus_one"
thr_apply_info_thr_error "${prefix}1-*" "inverted range"
thr_apply_info_thr_invalid "${prefix}*1"
thr_apply_info_thr_invalid "${prefix}*foo"
thr_apply_info_thr_invalid "${prefix}foo*"
}
# Check that a valid thread ID list with a missing command errors
# out.
with_test_prefix "missing command" {
set output "Please specify a command following the thread ID list"
gdb_test "thread apply 1" $output
gdb_test "thread apply 1.1" $output
gdb_test "thread apply 1.1 1.2" $output
gdb_test "thread apply 1-2" $output
gdb_test "thread apply 1.1-2" $output
gdb_test "thread apply $thr" $output
gdb_test "thread apply 1.*" $output
}
# Check that we do parse the inferior number and don't confuse it.
gdb_test "info threads 3.1" \
"No threads match '3.1'\."
}
if { ![skip_python_tests] } {
with_test_prefix "python" {
# Check that InferiorThread.num and InferiorThread.global_num
# return the expected numbers.
gdb_py_test_silent_cmd "python t0 = gdb.selected_thread ()" \
"test gdb.selected_thread" 1
gdb_test "python print ('result = %s' % t0.num)" " = 3" \
"test InferiorThread.num"
gdb_test "python print ('result = %s' % t0.global_num)" " = 6" \
"test InferiorThread.global_num"
# Breakpoint.thread expects global IDs. Confirm that that
# works as expected.
delete_breakpoints
gdb_breakpoint "thread_function1"
gdb_py_test_silent_cmd "python bp = gdb.breakpoints()\[0\]" \
"get python breakpoint" 0
gdb_test "python bp.thread = 6" "thread = 6" \
"make breakpoint thread-specific with python"
# Check that the inferior-qualified ID is correct.
gdb_test "info breakpoint" \
"stop only in thread 1.3\r\n.*" \
"thread specific breakpoint right thread"
}
}
# Remove the second inferior and confirm that GDB goes back to showing
# single-number thread IDs.
with_test_prefix "back to one inferior" {
gdb_test "kill inferior 2" "" "kill inferior 2" "Kill the program being debugged.*" "y"
gdb_test "thread 1.1" "Switching to thread 1\.1 .*"
gdb_test "remove-inferior 2" ".*" "remove inferior 2"
# "info threads" while there's only inferior 1 should show
# single-number thread IDs.
info_threads "" "1 2 3"
gdb_test "thread" "Current thread is 1 .*"
}
# Add another inferior and remove inferior 1. Since even though
# there's a single inferior, its number is not 1, GDB should show
# inferior-qualified thread IDs.
with_test_prefix "single-inferior but not initial" {
# Add another inferior.
gdb_test "add-inferior" "Added inferior 3.*" "add empty inferior"
# Now that we'd added another inferior, thread IDs should show the
# inferior number.
info_threads "" "1.1 1.2 1.3" \
"info threads with multiple inferiors"
gdb_test "thread" "Current thread is 1\.1 .*"
gdb_test "inferior 3" "Switching to inferior 3 .*" "switch to inferior 3"
gdb_test "file ${binfile}" ".*" "load file in inferior 3"
runto_main
gdb_test "remove-inferior 1" ".*" "remove inferior 1"
# Even though we have a single inferior, its number is > 1, so
# thread IDs should include the inferior number.
info_threads "" "3.1" \
"info threads with single inferior"
gdb_test "thread" "Current thread is 3\.1 .*" "thread again"
}
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