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# Copyright (C) 2017-2021 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 quitting GDB with live inferiors.
#
# Exercises combinations of:
#
# - quitting with "quit" command, or with SIGTERM/SIGHUP signals.
#
# - quitting with live inferior selected, or file_stratum inferior
# selected.
#
# - quitting after "run", or after "attach".
#
# - quitting with local executable, or executable loaded from target
# directly (via default "target:/" sysroot), or with no executable
# loaded.
# Note: sending an asynchronous SIGHUP with kill is not the exact same
# as closing GDB's input, and that resulting in SIGHUP. However, it's
# still a good approximation, and it has the advantage that because
# GDB still has a terminal, internal errors (if any) are visible in
# gdb.sum/gdb.log.
standard_testfile
if {[build_executable "failed to build" $testfile $srcfile debug]} {
return
}
# Send signal SIG to GDB, and expect GDB to exit.
proc test_quit_with_sig {sig} {
set gdb_pid [exp_pid -i [board_info host fileid]]
remote_exec host "kill -$sig ${gdb_pid}"
set test "quit with SIG$sig"
# If GDB mishandles the signal and doesn't exit, this should FAIL
# with timeout. We don't expect a GDB prompt, so if we see one,
# we'll FAIL too (without having to wait for timeout).
gdb_test_multiple "" $test {
eof {
pass $test
}
}
}
# Call the "quit" command with an inferior live.
#
# APPEAR_HOW specifies how the running inferior appears in GDB. Can
# be either:
#
# - "run"
#
# Appear via the "run" command.
#
# - "attach"
#
# Appear via the "attach" command.
#
# - "attach-nofile"
#
# Appear via the "attach" command, but with no program preloaded in
# GDB so that GDB reads the program directly from the target when
# remote debugging (i.e., from the target:/ sysroot). This makes
# sure that GDB doesn't misbehave if it decides to close the
# 'target:/.../program' exec_file after closing the remote
# connection.
#
# EXTRA_INFERIOR is a boolean that specifies whether we try to quit
# GDB with an extra executable-only (before "run") inferior selected
# or whether we try to quit GDB when the live inferior is selected,
# with no extra inferior.
#
# QUIT_HOW specifies how to tell GDB to quit. It can be either "quit"
# (for "quit" command), "sighup" or "sigterm" (for quitting with
# SIGHUP and SIGTERM signals, respectively).
proc quit_with_live_inferior {appear_how extra_inferior quit_how} {
global srcfile testfile binfile
global gdb_spawn_id gdb_prompt
set test_spawn_id ""
if {$appear_how != "attach-nofile"} {
clean_restart $binfile
} else {
clean_restart
}
if {$appear_how == "run"} {
if ![runto_main] then {
fail "can't run to main"
return
}
} elseif {$appear_how == "attach" || $appear_how == "attach-nofile"} {
set test_spawn_id [spawn_wait_for_attach $binfile]
set testpid [spawn_id_get_pid $test_spawn_id]
if {[gdb_test "attach $testpid" \
"Attaching to .*process $testpid.*Reading symbols from.*" \
"attach"] != 0} {
kill_wait_spawned_process $test_spawn_id
return
}
} else {
error "unhandled '\$appear_how': $appear_how"
}
if {$extra_inferior} {
gdb_test "add-inferior" "Added inferior 2 on connection .*" \
"add empty inferior 2"
gdb_test "inferior 2" "Switching to inferior 2.*" \
"switch to inferior 2"
}
if {$quit_how == "quit"} {
# Make regexp that matches the "quit" command's output.
proc make_re {how} {
multi_line \
"A debugging session is active.\[ \t\r\n\]*Inferior 1\[^\r\n\]* will be $how\." \
"" \
"Quit anyway\\? \\(y or n\\) $"
}
if {$appear_how == "run"} {
set quit_anyway_re [make_re "killed"]
} else {
set quit_anyway_re [make_re "detached"]
}
set test "quit with \"quit\""
gdb_test_multiple "quit" $test {
-re $quit_anyway_re {
send_gdb "y\n"
gdb_test_multiple "" $test {
eof {
pass $test
}
}
}
}
} elseif {$quit_how == "sighup"} {
test_quit_with_sig HUP
} elseif {$quit_how == "sigterm"} {
test_quit_with_sig TERM
} else {
error "unhandled '\$quit_how': $quit_how"
}
if {$test_spawn_id != ""} {
kill_wait_spawned_process $test_spawn_id
}
}
foreach_with_prefix appear_how {"run" "attach" "attach-nofile"} {
if {$appear_how != "run" && ![can_spawn_for_attach]} {
continue
}
foreach_with_prefix extra_inferior {0 1} {
foreach_with_prefix quit_how {"quit" "sigterm" "sighup"} {
quit_with_live_inferior $appear_how $extra_inferior $quit_how
}
}
}
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