binutils-gdb/gdb/testsuite/gdb.mi/user-selected-context-sync.exp
Andrew Burgess 6cce025114 gdb: only insert thread-specific breakpoints in the relevant inferior
This commit updates GDB so that thread or inferior specific
breakpoints are only inserted into the program space in which the
specific thread or inferior is running.

In terms of implementation, getting this basically working is easy
enough, now that a breakpoint's thread or inferior field is setup
prior to GDB looking for locations, we can easily use this information
to find a suitable program_space and pass this to as a filter when
creating the sals.

Or we could if breakpoint_ops::create_sals_from_location_spec allowed
us to pass in a filter program_space.

So, this commit extends breakpoint_ops::create_sals_from_location_spec
to take a program_space argument, and uses this to filter the set of
returned sals.  This accounts for about half the change in this patch.

The second set of changes starts from breakpoint_set_thread and
breakpoint_set_inferior, this is called when the thread or inferior
for a breakpoint changes, e.g. from the Python API.

Previously this call would never result in the locations of a
breakpoint changing, after all, locations were inserted in every
program space, and we just use the thread or inferior variable to
decide when we should stop.  Now though, changing a breakpoint's
thread or inferior can mean we need to figure out a new set of
breakpoint locations.

To support this I've added a new breakpoint_re_set_one function, which
is like breakpoint_re_set, but takes a single breakpoint, and just
updates the locations for that one breakpoint.  We only need to call
this function if the program_space in which a breakpoint's thread (or
inferior) is running actually changes.  If the program_space does
change then we call the new breakpoint_re_set_one function passing in
the program_space which should be used to filter the new locations (or
nullptr to indicate we should set locations in all program spaces).
This filter program_space needs to propagate down to all the re_set
methods, this accounts for the remaining half of the changes in this
patch.

There were a couple of existing tests that created thread or inferior
specific breakpoints and then checked the 'info breakpoints' output,
these needed updating.  These were:

  gdb.mi/user-selected-context-sync.exp
  gdb.multi/bp-thread-specific.exp
  gdb.multi/multi-target-continue.exp
  gdb.multi/multi-target-ping-pong-next.exp
  gdb.multi/tids.exp
  gdb.mi/new-ui-bp-deleted.exp
  gdb.multi/inferior-specific-bp.exp
  gdb.multi/pending-bp-del-inferior.exp

I've also added some additional tests to:

  gdb.multi/pending-bp.exp

I've updated the documentation and added a NEWS entry.

Reviewed-By: Eli Zaretskii <eliz@gnu.org>
2024-09-07 21:48:35 +01:00

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# Copyright 2016-2024 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 test checks that the "thread", "select-frame", "frame" and "inferior"
# CLI commands, as well as the "-thread-select" and "-stack-select-frame" MI
# commands send the appropriate user-selection-change events to all UIs.
#
# This test considers the case where console and MI are two different UIs,
# and MI is created with the new-ui command.
#
# It also considers the case where the console commands are sent directly in
# the MI channel as described in PR 20487.
#
# It does so by starting 2 inferiors with 3 threads each.
# - Thread 1 of each inferior is the main thread, starting the others.
# - Thread 2 of each inferior is stopped at /* thread loop line */.
# - Thread 3 of each inferior is either stopped at /* thread loop line */, if we
# are using all-stop, or running, if we are using non-stop.
# Do not run if gdb debug is enabled as it doesn't work for separate-mi-tty.
require !gdb_debug_enabled
load_lib mi-support.exp
standard_testfile
# Multiple inferiors are needed, therefore only native gdb and extended
# gdbserver modes are supported.
require !use_gdb_stub
set compile_options "debug pthreads"
if {[build_executable $testfile.exp $testfile ${srcfile} ${compile_options}] == -1} {
untested "failed to compile"
return -1
}
set main_break_line [gdb_get_line_number "main break line"]
set thread_loop_line [gdb_get_line_number "thread loop line"]
set thread_caller_line [gdb_get_line_number "thread caller line"]
# Return whether we expect thread THREAD to be running in mode MODE.
#
# MODE can be either "all-stop" or "non-stop".
# THREAD can be either a CLI thread id (e.g. 2.3) or an MI thread id (e.g. 6).
proc thread_is_running { mode thread } {
if { $mode != "non-stop" } {
return 0
}
return [expr {
$thread == 1.3
|| $thread == 2.3
|| $thread == 3
|| $thread == 6
}]
}
# Make a regular expression to match the various inferior/thread/frame selection
# events for CLI.
#
# MODE can be either "all-stop" or "non-stop", indicating which one is currently
# in use.
# INF is the inferior number we are expecting GDB to switch to, or -1 if we are
# not expecting GDB to announce an inferior switch.
# THREAD is the thread number we are expecting GDB to switch to, or -1 if we are
# not expecting GDB to announce a thread switch.
# FRAME is the frame number we are expecting GDB to switch to, or -1 if we are
# not expecting GDB to announce a frame switch. See the FRAME_RE variable for
# details.
proc make_cli_re { mode inf thread frame } {
global srcfile
global thread_caller_line
global thread_loop_line
global main_break_line
global decimal
set any "\[^\r\n\]*"
set cli_re ""
set inf_re "\\\[Switching to inferior $inf${any}\\\]"
set all_stop_thread_re "\\\[Switching to thread [string_to_regexp $thread]${any}\\\]"
set frame_re(0) "#0${any}child_sub_function$any$srcfile:$thread_loop_line\r\n${any}thread loop line \\\*/"
set frame_re(1) "#1${any}child_function \\\(args=0x0\\\) at ${any}$srcfile:$thread_caller_line\r\n$thread_caller_line${any}/\\\* thread caller line \\\*/"
# Special frame for main thread.
set frame_re(2) "#0${any}\r\n${main_break_line}${any}"
if { $inf != -1 } {
append cli_re $inf_re
}
if { $thread != -1 } {
if { $inf != -1 } {
append cli_re "\r\n"
}
set thread_re $all_stop_thread_re
if [thread_is_running $mode $thread] {
set thread_re "$thread_re\\\(running\\\)"
}
append cli_re $thread_re
}
if { $frame != -1 } {
if { $thread != -1 } {
append cli_re "\r\n"
}
append cli_re $frame_re($frame)
}
return $cli_re
}
# Make a regular expression to match the various inferior/thread/frame selection
# events for MI.
#
# MODE can be either "all-stop" or "non-stop", indicating which one is currently
# in use.
# THREAD is the thread number we are expecting GDB to switch to, or -1 if we are
# not expecting GDB to announce a thread switch.
# If EVENT is 1, build a regex for an "=thread-selected" async event.
# Otherwise, build a regex for a response to a command.
# FRAME is the frame number we are expecting GDB to switch to, or -1 if we are
# not expecting GDB to announce a frame switch. See the FRAME_RE variable for
# details.
proc make_mi_re { mode thread frame type } {
global srcfile
global hex
global decimal
global thread_loop_line
global main_break_line
global thread_caller_line
set any "\[^\r\n\]*"
set mi_re ""
set thread_event_re "=thread-selected,id=\"$thread\""
set thread_answer_re "\\^done,new-thread-id=\"$thread\""
set frame_re(0) ",frame=\{level=\"0\",addr=\"$hex\",func=\"child_sub_function\",args=\\\[\\\],file=\"${any}${srcfile}\",fullname=\"${any}${srcfile}\",line=\"$thread_loop_line\",arch=\"$any\"\}"
set frame_re(1) ",frame=\{level=\"1\",addr=\"$hex\",func=\"child_function\",args=\\\[\{name=\"args\",value=\"0x0\"\}\\\],file=\"${any}${srcfile}\",fullname=\"${any}${srcfile}\",line=\"$thread_caller_line\",arch=\"$any\"\}"
# Special frame for main thread.
set frame_re(2) ",frame=\{level=\"0\",addr=\"$hex\",func=\"main\",args=\\\[\\\],file=\"${any}${srcfile}\",fullname=\"${any}${srcfile}\",line=\"${main_break_line}\",arch=\"$any\"\}"
if { $thread != -1 } {
if { $type == "event" } {
append mi_re $thread_event_re
} elseif { $type == "response" } {
append mi_re $thread_answer_re
} else {
error "Invalid value for EVENT."
}
}
if { $frame != -1 } {
append mi_re $frame_re($frame)
}
if { $type == "event" } {
append mi_re "\r\n"
}
return $mi_re
}
# Make a regular expression to match the various inferior/thread/frame selection
# events when issuing CLI commands inside MI.
#
# COMMAND is the CLI command that was sent to GDB, which will be output in the
# console output stream.
# CLI_IN_MI_MODE indicates which method of CLI-in-MI command is used. It can be
# either "direct" of "interpreter-exec".
# MODE can be either "all-stop" or "non-stop", indicating which one is currently
# in use.
# If EVENT is 1, expect a =thread-select MI event.
# INF is the inferior number we are expecting GDB to switch to, or -1 if we are
# not expecting GDB to announce an inferior switch.
# CLI_THREAD is the thread number as seen in the CLI (inferior-qualified) we are
# expecting GDB to switch to, or -1 if we are not expecting GDB to announce a
# thread switch.
# MI_THREAD is the thread number as seen in the MI (global number) we are
# expecting GDB to switch to, or -1 if we are not expecting GDB to announce a
# thread switch.
# FRAME is the frame number we are expecting GDB to switch to, or -1 if we are
# not expecting GDB to announce a frame switch. See the FRAME_RE variable for
# details.
proc make_cli_in_mi_re { command cli_in_mi_mode mode event inf cli_thread
mi_thread frame } {
global srcfile
global thread_loop_line
global main_break_line
global thread_caller_line
set any "\[^\r\n\]*"
set command_re [string_to_regexp $command]
set cli_in_mi_re "$command_re\r\n"
if { $cli_in_mi_mode == "direct" } {
append cli_in_mi_re "&\"$command_re\\\\n\"\r\n"
}
set frame_re(0) "~\"#0${any}child_sub_function${any}$srcfile:$thread_loop_line\\\\n\"\r\n~\"${thread_loop_line}${any}thread loop line \\\*/\\\\n\"\r\n"
set frame_re(1) "~\"#1${any}child_function \\\(args=0x0\\\) at ${any}$srcfile:$thread_caller_line\\\\n\"\r\n~\"$thread_caller_line${any}thread caller line \\\*/\\\\n\"\r\n"
# Special frame for main thread.
set frame_re(2) "~\"#0${any}main${any}\\\\n\"\r\n~\"${main_break_line}${any}\"\r\n"
if { $inf != -1 } {
append cli_in_mi_re "~\""
append cli_in_mi_re [make_cli_re $mode $inf -1 -1]
append cli_in_mi_re "\\\\n\"\r\n"
}
if { $cli_thread != "-1" } {
append cli_in_mi_re "~\""
append cli_in_mi_re [make_cli_re $mode -1 $cli_thread -1]
append cli_in_mi_re "\\\\n\"\r\n"
}
if { $frame != -1 } {
append cli_in_mi_re $frame_re($frame)
}
if { $event == 1 } {
append cli_in_mi_re [make_mi_re $mode $mi_thread $frame event]
}
append cli_in_mi_re "\\^done"
return $cli_in_mi_re
}
# Return the current value of the "scheduler-locking" parameter.
proc show_scheduler_locking { } {
global gdb_prompt
global expect_out
set any "\[^\r\n\]*"
set test "show scheduler-locking"
gdb_test_multiple $test $test {
-re ".*Mode for locking scheduler during execution is \"(${any})\".\r\n$gdb_prompt " {
pass $test
return $expect_out(1,string)
}
}
error "Couldn't get current scheduler-locking value."
}
# Prepare inferior INF so it is in the state we expect (see comment at the top).
proc test_continue_to_start { mode inf } {
global gdb_spawn_id
global mi_spawn_id
global gdb_main_spawn_id
global srcfile
global main_break_line
global thread_loop_line
global decimal
global gdb_prompt
set any "\[^\r\n\]*"
if { $gdb_spawn_id != $gdb_main_spawn_id } {
error "This should not happen."
}
with_test_prefix "inferior $inf" {
with_spawn_id $gdb_main_spawn_id {
# Continue to the point where we know for sure the threads are
# started.
gdb_test "tbreak $srcfile:$main_break_line" \
"Temporary breakpoint ${any}" \
"set breakpoint in main"
gdb_continue_to_breakpoint "main breakpoint"
# Consume MI event output.
with_spawn_id $mi_spawn_id {
if { $inf == 1 } {
mi_expect_stop "breakpoint-hit" "main" "" "$srcfile" \
"$decimal" {"" "disp=\"del\""} "stop at breakpoint in main"
} else {
mi_expect_stop "breakpoint-hit" "main" "" "$srcfile" \
"$decimal" {"" "disp=\"del\"" "locno=\"[0-9]+\""} "stop at breakpoint in main"
}
}
if { $mode == "all-stop" } {
set previous_schedlock_val [show_scheduler_locking]
# Set scheduler-locking on, so that we can control threads
# independently.
gdb_test_no_output "set scheduler-locking on"
# Continue each child thread to the point we want them to be.
foreach thread { 2 3 } {
gdb_test "thread $inf.$thread" ".*" "select child thread $inf.$thread"
gdb_test "tbreak $srcfile:$thread_loop_line" \
"Temporary breakpoint ${any}" \
"set breakpoint for thread $inf.$thread"
gdb_continue_to_breakpoint "continue thread $inf.$thread to infinite loop breakpoint"
# Consume MI output.
with_spawn_id $mi_spawn_id {
if { $inf == 1} {
mi_expect_stop "breakpoint-hit" "child_sub_function" \
"" "$srcfile" "$decimal" {"" "disp=\"del\""} \
"thread $inf.$thread stops MI"
} else {
mi_expect_stop "breakpoint-hit" "child_sub_function" \
"" "$srcfile" "$decimal" {"" "disp=\"del\"" "locno=\"[0-9]+\""} \
"thread $inf.$thread stops MI"
}
}
}
# Restore scheduler-locking to its original value.
gdb_test_no_output "set scheduler-locking $previous_schedlock_val"
} else { # $mode == "non-stop"
# Put a thread-specific breakpoint for thread 2 of the current
# inferior. We don't put a breakpoint for thread 3, since we
# want to let it run.
set test "set thread-specific breakpoint, thread $inf.2"
gdb_test_multiple "tbreak $srcfile:$thread_loop_line thread $inf.2" $test {
-re "Temporary breakpoint ${any}\r\n$gdb_prompt " {
pass $test
}
}
# Confirm the stop of thread $inf.2.
set test "thread $inf.2 stops CLI"
gdb_test_multiple "" $test {
-re "Thread $inf.2 ${any} hit Temporary breakpoint ${any}\r\n$thread_loop_line${any}\r\n" {
pass $test
}
}
# Consume MI output.
with_spawn_id $mi_spawn_id {
mi_expect_stop "breakpoint-hit" "child_sub_function" \
"" "$srcfile" "$decimal" {"" "disp=\"del\""} \
"thread $inf.2 stops MI"
}
}
}
}
}
# Prepare the test environment.
#
# MODE can be either "all-stop" or "non-stop".
proc_with_prefix test_setup { mode } {
global srcfile
global srcdir
global subdir
global gdb_main_spawn_id
global mi_spawn_id
global decimal
global binfile
global GDBFLAGS
global async
set any "\[^\r\n\]*"
save_vars { GDBFLAGS } {
if { $mode == "non-stop" } {
set GDBFLAGS [concat $GDBFLAGS " -ex \"set non-stop 1\""]
}
if { [mi_clean_restart $binfile "separate-mi-tty"] != 0 } {
return -1
}
}
if { [mi_runto_main] < 0 } {
return -1
}
# When using mi_expect_stop, we don't expect a prompt after the *stopped
# event, since the blocking commands are done from the CLI. Setting async
# to 1 makes it not expect the prompt.
set async 1
with_spawn_id $gdb_main_spawn_id {
# Add the second inferior now. While this is not mandatory, it allows
# us to assume that per-inferior thread numbering will be used,
# simplifying test_continue_to_start a bit (Thread 1.2 and not Thread 2).
gdb_test "add-inferior" "Added inferior 2 on connection .*" "add inferior 2"
# Prepare the first inferior for the test.
test_continue_to_start $mode 1
# Switch to and start the second inferior.
gdb_test "inferior 2" "\\\[Switching to inferior 2${any}\\\]" "switch to inferior 2"
gdb_load ${binfile}
# Doing "start" on the CLI generates a ton of MI output. At some point,
# if we don't consume/match it, the buffer between GDB's MI channel and
# Expect will get full, GDB will block on a write system call and we'll
# deadlock, waiting for CLI output that will never arrive. And then
# we're sad. So instead of using gdb_test and expect CLI output, send
# the start command first, then consume MI output, and finally consume
# CLI output.
send_gdb "start\n"
with_spawn_id $mi_spawn_id {
mi_expect_stop "breakpoint-hit" "main" "" "$srcfile" "$decimal" \
{"" "disp=\"del\""} "main stop"
}
# Consume CLI output.
gdb_test "" "Temporary breakpoint.*Starting program.*"
# Prepare the second inferior for the test.
test_continue_to_start $mode 2
}
return 0
}
# Reset the selection to frame #0 of thread THREAD.
proc reset_selection { thread } {
global gdb_main_spawn_id
set any "\[^\r\n\]*"
with_spawn_id $gdb_main_spawn_id {
gdb_test "thread $thread" \
"\\\[Switching to thread $thread ${any}\\\].*" \
"reset selection to thread $thread"
gdb_test "frame 0" ".*" "reset selection to frame 0"
}
}
# Flush Expect's internal buffers for both CLI and MI.
#
# The idea here is to send a command, and to consume all the characters that we
# expect that command to output, including the following prompt. Using gdb_test
# and mi_gdb_test should do that.
proc flush_buffers { } {
global gdb_main_spawn_id mi_spawn_id
with_spawn_id $gdb_main_spawn_id {
gdb_test "print 444" "= 444" "flush CLI"
}
with_spawn_id $mi_spawn_id {
mi_gdb_test "555-data-evaluate-expression 666" ".*done,value=\"666\"" "flush MI"
}
}
# Run a command on the current spawn id, to confirm that no output is pending
# in Expect's internal buffer. This is used to ensure that nothing was output
# on the spawn id since the call to gdb_test/mi_gdb_test/flush_buffers.
#
# The key here is that the regexes use start-of-buffer anchors (^), ensuring
# that they match the entire buffer, confirming that there was nothing in it
# before.
proc ensure_no_output { test } {
global gdb_spawn_id gdb_main_spawn_id mi_spawn_id
global decimal
if { $gdb_spawn_id == $gdb_main_spawn_id } {
# CLI
gdb_test "print 666" \
"^\\\$$decimal = 666" \
"$test, ensure no output CLI"
} elseif { $gdb_spawn_id == $mi_spawn_id } {
# MI
mi_gdb_test "777-data-evaluate-expression 888" \
"^777-data-evaluate-expression 888\r\n777\\^done,value=\"888\"" \
"$test, ensure no output MI"
} else {
error "Unexpected gdb_spawn_id value."
}
}
# Match a regular expression, or ensure that there was no output.
#
# If RE is non-empty, try to match the content of the program output (using the
# current spawn_id) and pass/fail TEST accordingly.
# If RE is empty, ensure that the program did not output anything.
proc match_re_or_ensure_no_output { re test } {
if { $re != "" } {
gdb_expect {
-re "$re" {
pass $test
}
default {
fail $test
}
}
} else {
ensure_no_output $test
}
}
# Test selecting an inferior from CLI.
proc_with_prefix test_cli_inferior { mode } {
global gdb_main_spawn_id mi_spawn_id
reset_selection "1.1"
set mi_re [make_mi_re $mode 4 2 event]
set cli_re [make_cli_re $mode 2 2.1 2]
flush_buffers
# Do the 'inferior' command.
with_spawn_id $gdb_main_spawn_id {
gdb_test "inferior 2" $cli_re "CLI select inferior"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "event on MI"
}
# Do the 'inferior' command on the currently selected inferior. For now,
# GDB naively re-outputs everything.
with_spawn_id $gdb_main_spawn_id {
gdb_test "inferior 2" $cli_re "CLI select inferior again"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "event on MI again"
}
}
# Test thread selection from CLI.
proc_with_prefix test_cli_thread { mode } {
global gdb_main_spawn_id
global mi_spawn_id
set any "\[^\r\n\]*"
reset_selection "1.1"
flush_buffers
with_test_prefix "thread 1.2" {
# Do the 'thread' command to select a stopped thread.
set mi_re [make_mi_re $mode 2 0 event]
set cli_re [make_cli_re $mode -1 1.2 0]
with_spawn_id $gdb_main_spawn_id {
gdb_test "thread 1.2" $cli_re "select thread"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select thread, event on MI "
}
# Do the 'thread' command to select the same thread. We shouldn't receive
# an event on MI, since we won't actually switch thread.
set mi_re ""
with_spawn_id $gdb_main_spawn_id {
gdb_test "thread 1.2" $cli_re "select thread again"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select thread, event on MI again"
}
# Try the 'thread' command without arguments.
set cli_re "\\\[Current thread is 1\\.2.*\\\]"
set mi_re ""
with_spawn_id $gdb_main_spawn_id {
gdb_test "thread" $cli_re "thread without args"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "thread without args, event on MI"
}
}
with_test_prefix "thread 1.3" {
# Do the 'thread' command to select the third thread, stopped on all-stop,
# running on non-stop.
if { $mode == "all-stop" } {
set cli_re [make_cli_re $mode -1 1.3 0]
set mi_re [make_mi_re $mode 3 0 event]
} else {
set cli_re [make_cli_re $mode -1 1.3 -1]
set mi_re [make_mi_re $mode 3 -1 event]
}
with_spawn_id $gdb_main_spawn_id {
gdb_test "thread 1.3" $cli_re "select thread"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select thread, event on MI"
}
# Do the 'thread' command to select the third thread again. Again, we
# shouldn't receive an event on MI.
set mi_re ""
with_spawn_id $gdb_main_spawn_id {
gdb_test "thread 1.3" $cli_re "select thread again"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select thread again, event on MI"
}
# Try the 'thread' command without arguments.
set cli_re "\\\[Current thread is 1\\.3 ${any}\\\]"
set mi_re ""
with_spawn_id $gdb_main_spawn_id {
gdb_test "thread" $cli_re "thread without args"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "thread without args, event on MI"
}
}
# Idea for the future: selecting a thread in a different inferior. For now,
# GDB doesn't show an inferior switch, but if it did, it would be a nice
# place to test it.
}
# Test frame selection from CLI.
proc_with_prefix test_cli_frame { mode } {
global gdb_main_spawn_id mi_spawn_id
with_test_prefix "thread 1.2" {
reset_selection "1.2"
flush_buffers
# Do the 'frame' command to select frame 1.
set mi_re [make_mi_re $mode 2 1 event]
set cli_re [make_cli_re $mode -1 -1 1]
with_spawn_id $gdb_main_spawn_id {
gdb_test "frame 1" $cli_re "select frame 1"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select frame 1, event on MI"
}
# Do the 'frame' command to select the same frame. This time we don't
# expect an event on MI, since we won't actually change frame.
set mi_re ""
with_spawn_id $gdb_main_spawn_id {
gdb_test "frame 1" $cli_re "select frame 1 again"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select frame 1 again, event on MI"
}
# Do the 'frame' command without arguments. We shouldn't see anything on MI.
with_spawn_id $gdb_main_spawn_id {
gdb_test "frame" $cli_re "frame without args"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "frame without args, event on MI"
}
}
with_test_prefix "thread 1.3" {
# Now, try the 'frame' command on thread 3, which is running if we are in
# non-stop mode.
reset_selection "1.3"
flush_buffers
if {$mode == "all-stop"} {
set mi_re [make_mi_re $mode 3 1 event]
set cli_re [make_cli_re $mode -1 -1 1]
} elseif {$mode == "non-stop"} {
set mi_re ""
set cli_re "Selected thread is running\\."
}
with_spawn_id $gdb_main_spawn_id {
gdb_test "frame 1" $cli_re "select frame 1"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select frame 1, event on MI"
}
# Do the 'frame' command without arguments.
if { $mode == "non-stop" } {
set cli_re "No stack\\."
}
set mi_re ""
with_spawn_id $gdb_main_spawn_id {
gdb_test "frame" $cli_re "frame without args"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "frame without args, event on MI"
}
}
}
# Test frame selection from CLI with the select-frame command.
proc_with_prefix test_cli_select_frame { mode } {
global gdb_main_spawn_id mi_spawn_id expect_out
with_test_prefix "thread 1.2" {
reset_selection "1.2"
flush_buffers
# Do the 'select-frame' command to select frame 1.
set mi_re [make_mi_re $mode 2 1 event]
with_spawn_id $gdb_main_spawn_id {
gdb_test_no_output "select-frame 1" "select frame 1"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select frame 1, event on MI"
}
# Do the 'select-frame' command to select the same frame. This time we expect to
# event on MI, since we won't actually change frame.
set mi_re ""
with_spawn_id $gdb_main_spawn_id {
gdb_test_no_output "select-frame 1" "select frame 1 again"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select frame 1 again, event on MI"
}
}
with_test_prefix "thread 1.3" {
# Now, try the 'select-frame' command on thread 3, which is running if we are in
# non-stop mode.
reset_selection "1.3"
flush_buffers
if {$mode == "all-stop"} {
set mi_re [make_mi_re $mode 3 1 event]
} elseif {$mode == "non-stop"} {
set mi-re ""
set cli_re "Selected thread is running\\."
}
with_spawn_id $gdb_main_spawn_id {
if { $mode == "all-stop" } {
gdb_test_no_output "select-frame 1" "select frame 1"
} else {
gdb_test "select-frame 1" $cli_re "select frame 1"
}
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "select frame 1, event on MI"
}
}
}
# Test doing an up and then down command from CLI.
proc_with_prefix test_cli_up_down { mode } {
global gdb_main_spawn_id mi_spawn_id
reset_selection "1.2"
flush_buffers
# Try doing an 'up'.
set mi_re [make_mi_re $mode 2 1 event]
set cli_re [make_cli_re $mode -1 -1 1]
with_spawn_id $gdb_main_spawn_id {
gdb_test "up" $cli_re "frame up"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "frame up, event on MI"
}
# Try doing a 'down'.
set mi_re [make_mi_re $mode 2 0 event]
set cli_re [make_cli_re $mode -1 -1 0]
with_spawn_id $gdb_main_spawn_id {
gdb_test "down" $cli_re "frame down"
}
with_spawn_id $mi_spawn_id {
match_re_or_ensure_no_output $mi_re "frame down, event on MI"
}
}
# Test selecting a thread from MI.
proc_with_prefix test_mi_thread_select { mode } {
global gdb_main_spawn_id mi_spawn_id
reset_selection "1.1"
flush_buffers
with_test_prefix "thread 1.2" {
# Do the '-thread-select' command to select a stopped thread.
set mi_re [make_mi_re $mode 2 0 response]
set cli_re [make_cli_re $mode -1 1.2 0]
with_spawn_id $mi_spawn_id {
mi_gdb_test "-thread-select 2" $mi_re "-thread-select"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "-thread-select, event on CLI"
}
# Do the '-thread-select' command to select the same thread. We
# shouldn't receive an event on CLI, since we won't actually switch
# thread.
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test "-thread-select 2" $mi_re "-thread-select again"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "-thread-select again, event on CLI"
}
}
with_test_prefix "thread 1.3" {
# Do the '-thread-select' command to select the third thread, stopped on all-stop,
# running on non-stop.
if { $mode == "all-stop" } {
set mi_re [make_mi_re $mode 3 0 response]
set cli_re [make_cli_re $mode -1 1.3 0]
} else {
set mi_re [make_mi_re $mode 3 -1 response]
set cli_re [make_cli_re $mode -1 1.3 -1]
}
with_spawn_id $mi_spawn_id {
mi_gdb_test "-thread-select 3" $mi_re "-thread-select"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "-thread-select, event on CLI"
}
# Do the 'thread' command to select the third thread again. Again, we
# shouldn't receive an event on MI.
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test "-thread-select 3" $mi_re "-thread-select again"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "-thread-select again, event on CLI"
}
}
with_test_prefix "thread 1.2 with --thread 2" {
# Test selecting a thread from MI with a --thread option. This test
# verifies that even if the thread GDB would switch to is the same as
# the thread specified with --thread, an event is still sent to CLI.
# In this case this is thread 1.2
set mi_re [make_mi_re $mode 2 0 response]
set cli_re [make_cli_re $mode -1 1.2 0]
with_spawn_id $mi_spawn_id {
mi_gdb_test "-thread-select --thread 2 2" $mi_re "-thread-select"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "-thread-select, event on cli"
}
}
with_test_prefix "thread 1.2 with --thread 3" {
# Test selecting a thread from MI with a --thread option.
# This test verifies that when different thread numbers are
# passed to the --thread option and the underlying
# -thread-select command, the correct thread is selected.
# In this case this is thread 1.2
reset_selection "1.1"
set mi_re [make_mi_re $mode 2 0 response]
set cli_re [make_cli_re $mode -1 1.2 0]
with_spawn_id $mi_spawn_id {
mi_gdb_test "-thread-select --thread 3 2" $mi_re "-thread-select"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "-thread-select, event on cli"
}
}
# Idea for the future: selecting a thread in a different inferior. For now,
# GDB doesn't show an inferior switch, but if it did, it would be a nice
# place to test it.
}
proc_with_prefix test_mi_stack_select_frame { mode } {
global gdb_main_spawn_id mi_spawn_id
with_test_prefix "thread 1.2" {
reset_selection "1.2"
flush_buffers
# Do the '-stack-select-frame' command to select frame 1.
set mi_re "\\^done"
set cli_re [make_cli_re $mode -1 -1 1]
with_spawn_id $mi_spawn_id {
mi_gdb_test "-stack-select-frame 1" $mi_re "-stack-select-frame"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "-stack-select-frame, event on CLI"
}
# Do the '-stack-select-frame' command to select the same frame. This time we don't
# expect an event on CLI, since we won't actually change frame.
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test "-stack-select-frame 1" $mi_re "-stack-select-frame again"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "-stack-select-frame again, event on CLI"
}
# Now use the '-stack-select-frame' command with the --frame
# option, this verifies that even when the frame GDB would
# swith to is the same as the frame specified with --frame, an
# event is still sent to the CLI.
set cli_re [make_cli_re $mode -1 -1 0]
with_spawn_id $mi_spawn_id {
mi_gdb_test "-stack-select-frame --thread 2 --frame 0 0" $mi_re
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "-stack-select-frame with --frame 0, event on CLI"
}
# Now use the '-stack-select-frame' command with the --frame
# option, this verifies that the correct event is sent to the
# CLI when the frame specified with --frame is different to
# the actual frame selected.
set cli_re [make_cli_re $mode -1 -1 1]
with_spawn_id $mi_spawn_id {
mi_gdb_test "-stack-select-frame --thread 2 --frame 2 1" $mi_re
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "-stack-select-frame with --frame 2, event on CLI"
}
}
with_test_prefix "thread 1.3" {
# Now, try the '-stack-select-frame' command on thread 3, which is
# running if we are in non-stop mode.
reset_selection "1.3"
flush_buffers
if {$mode == "all-stop"} {
set mi_re "\\^done"
set cli_re [make_cli_re $mode -1 -1 1]
append cli_re "\r\n"
} elseif {$mode == "non-stop"} {
set cli_re ""
set mi_re "\\^error,msg=\"Selected thread is running\\.\""
}
with_spawn_id $mi_spawn_id {
mi_gdb_test "-stack-select-frame 1" $mi_re "-stack-select-frame"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "-stack-select-frame, event on CLI"
}
}
}
proc make_cli_in_mi_command { cli_in_mi_mode command } {
if { $cli_in_mi_mode == "direct" } {
return $command
} elseif { $cli_in_mi_mode == "interpreter-exec" } {
return "-interpreter-exec console \"$command\""
} else {
error "Invalid value for CLI_IN_MI_MODE."
}
}
# Test selecting the inferior using a CLI command in the MI channel.
proc_with_prefix test_cli_in_mi_inferior { mode cli_in_mi_mode } {
global gdb_main_spawn_id mi_spawn_id
reset_selection "1.1"
flush_buffers
set command [make_cli_in_mi_command $cli_in_mi_mode "inferior 2"]
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 1 2 2.1 4 2]
set cli_re [make_cli_re $mode 2 "2.1" 2]
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select inferior"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "select inferior, event on CLI"
}
# Do the 'inferior' command on the currently selected inferior. For now,
# GDB naively re-outputs everything.
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select inferior again"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "select inferior again, event on CLI"
}
}
# Test selecting the thread using a CLI command in the MI channel.
proc_with_prefix test_cli_in_mi_thread { mode cli_in_mi_mode } {
global gdb_main_spawn_id mi_spawn_id
reset_selection "1.1"
flush_buffers
with_test_prefix "thread 1.2" {
# Do the 'thread' command to select a stopped thread.
set command [make_cli_in_mi_command $cli_in_mi_mode "thread 1.2"]
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 1 -1 1.2 2 0]
set cli_re [make_cli_re $mode -1 1.2 0]
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select thread"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "select thread, event on CLI"
}
# Do the 'thread' command to select the same thread. We shouldn't
# receive an event on CLI, since we won't actually switch thread.
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 0 -1 1.2 2 0]
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select thread again"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "select thread again, event on CLI"
}
# Try the 'thread' command without arguments.
set command [make_cli_in_mi_command $cli_in_mi_mode "thread"]
set mi_re "${command}.*~\"\\\[Current thread is 1\\.2.*\\\]\\\\n\".*\\^done"
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "thread without args"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "thread without args, event on CLI"
}
}
with_test_prefix "thread 1.3" {
# Do the 'thread' command to select the third thread, stopped on
# all-stop, running on non-stop.
set command [make_cli_in_mi_command $cli_in_mi_mode "thread 1.3"]
if { $mode == "all-stop" } {
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 1 -1 1.3 3 0]
set cli_re [make_cli_re $mode -1 "1.3" 0]
} else {
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 1 -1 1.3 3 -1]
set cli_re [make_cli_re $mode -1 "1.3" -1]
}
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select thread"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "select thread, event on CLI"
}
# Do the 'thread' command to select the third thread again. Again, we
# shouldn't receive an event on MI.
if { $mode == "all-stop" } {
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 0 -1 1.3 3 0]
} else {
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 0 -1 1.3 3 -1]
}
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select thread again"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "select thread again, event on CLI"
}
# Try the 'thread' command without arguments.
set command [make_cli_in_mi_command $cli_in_mi_mode "thread"]
set mi_re "${command}.*~\"\\\[Current thread is 1\\.3.*\\\]\\\\n\".*\\^done"
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "thread without args"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "thread without args, event on CLI"
}
}
# Idea for the future: selecting a thread in a different inferior. For now,
# GDB doesn't show an inferior switch, but if it did, it would be a nice
# place to test it.
}
# Test selecting the frame using a CLI command in the MI channel.
proc_with_prefix test_cli_in_mi_frame { mode cli_in_mi_mode } {
global gdb_main_spawn_id mi_spawn_id
with_test_prefix "thread 1.2" {
reset_selection "1.2"
flush_buffers
# Do the 'frame' command to select frame 1.
set command [make_cli_in_mi_command $cli_in_mi_mode "frame 1"]
set cli_re [make_cli_re $mode -1 -1 1]
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 1 -1 -1 2 1]
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select frame 1"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output "$cli_re\r\n" "select frame 1, event on CLI"
}
# Do the 'frame' command to select the same frame. This time we don't
# expect an event on MI, since we won't actually change frame.
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 0 -1 -1 2 1]
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select frame 1 again"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "select frame 1 again, event on CLI"
}
# Do the 'frame' command without arguments. We shouldn't see anything on MI.
set command [make_cli_in_mi_command $cli_in_mi_mode "frame"]
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 0 -1 -1 2 1]
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "frame without args"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "frame without args, event on CLI"
}
}
with_test_prefix "thread 1.3" {
# Now, try the 'frame' command on thread 3, which is running if we are in
# non-stop mode.
reset_selection "1.3"
flush_buffers
set command [make_cli_in_mi_command $cli_in_mi_mode "frame 1"]
if {$mode == "all-stop"} {
set cli_re [make_cli_re $mode -1 -1 1]
append cli_re "\r\n"
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 1 -1 -1 3 1]
} elseif {$mode == "non-stop"} {
set cli_re ""
set mi_re "\\^error,msg=\"Selected thread is running\\.\".*"
}
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "select frame 1"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "select frame 1, event on CLI"
}
# Do the 'frame' command without arguments.
set command [make_cli_in_mi_command $cli_in_mi_mode "frame"]
if { $mode == "all-stop" } {
set mi_re [make_cli_in_mi_re $command $cli_in_mi_mode $mode 0 -1 -1 -1 1]
} else {
set mi_re "\\^error,msg=\"No stack\\.\""
}
set cli_re ""
with_spawn_id $mi_spawn_id {
mi_gdb_test $command $mi_re "frame without args"
}
with_spawn_id $gdb_main_spawn_id {
match_re_or_ensure_no_output $cli_re "frame without args, event on CLI"
}
}
}
foreach_with_prefix mode { "all-stop" "non-stop" } {
set test "setup done"
if { [test_setup $mode] == -1 } {
fail $test
continue
}
pass $test
# Test selecting inferior, thread and frame from CLI
test_cli_inferior $mode
test_cli_thread $mode
test_cli_frame $mode
test_cli_select_frame $mode
test_cli_up_down $mode
# Test selecting thread and frame from MI
test_mi_thread_select $mode
test_mi_stack_select_frame $mode
# Test some CLI commands sent through MI, both with a "direct" command,
# such as "thread 1", and with -interpreter-exec, such as
# '-interpreter-exec console "thread 1"'.
foreach_with_prefix exec_mode {"direct" "interpreter-exec"} {
test_cli_in_mi_inferior $mode $exec_mode
test_cli_in_mi_thread $mode $exec_mode
test_cli_in_mi_frame $mode $exec_mode
}
}