2018-01-01 05:43:02 +01:00
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# Copyright (C) 2017-2018 Free Software Foundation, Inc.
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2017-10-17 15:58:54 +02:00
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Test quitting GDB with live inferiors.
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#
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# Exercises combinations of:
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#
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# - quitting with "quit" command, or with SIGTERM/SIGHUP signals.
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#
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# - quitting with live inferior selected, or file_stratum inferior
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# selected.
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#
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# - quitting after "run", or after "attach".
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#
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# - quitting with local executable, or executable loaded from target
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# directly (via default "target:/" sysroot), or with no executable
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# loaded.
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# Note: sending an asynchronous SIGHUP with kill is not the exact same
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# as closing GDB's input, and that resulting in SIGHUP. However, it's
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# still a good approximation, and it has the advantage that because
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# GDB still has a terminal, internal errors (if any) are visible in
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# gdb.sum/gdb.log.
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standard_testfile
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if {[build_executable "failed to build" $testfile $srcfile debug]} {
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return
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}
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# Send signal SIG to GDB, and expect GDB to exit.
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proc test_quit_with_sig {sig} {
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set gdb_pid [exp_pid -i [board_info host fileid]]
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remote_exec host "kill -$sig ${gdb_pid}"
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set test "quit with SIG$sig"
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# If GDB mishandles the signal and doesn't exit, this should FAIL
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# with timeout. We don't expect a GDB prompt, so if we see one,
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# we'll FAIL too (without having to wait for timeout).
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gdb_test_multiple "" $test {
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eof {
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pass $test
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}
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}
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}
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# Call the "quit" command with an inferior live.
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#
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# APPEAR_HOW specifies how the running inferior appears in GDB. Can
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# be either:
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#
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# - "run"
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#
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# Appear via the "run" command.
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#
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# - "attach"
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#
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# Appear via the "attach" command.
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#
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# - "attach-nofile"
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#
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# Appear via the "attach" command, but with no program preloaded in
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# GDB so that GDB reads the program directly from the target when
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# remote debugging (i.e., from the target:/ sysroot). This makes
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# sure that GDB doesn't misbehave if it decides to close the
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# 'target:/.../program' exec_file after closing the remote
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# connection.
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#
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# EXTRA_INFERIOR is a boolean that specifies whether we try to quit
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# GDB with an extra executable-only (before "run") inferior selected
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# or whether we try to quit GDB when the live inferior is selected,
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# with no extra inferior.
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#
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# QUIT_HOW specifies how to tell GDB to quit. It can be either "quit"
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# (for "quit" command), "sighup" or "sigterm" (for quitting with
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# SIGHUP and SIGTERM signals, respectively).
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proc quit_with_live_inferior {appear_how extra_inferior quit_how} {
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global srcfile testfile binfile
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global gdb_spawn_id gdb_prompt
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set test_spawn_id ""
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if {$appear_how != "attach-nofile"} {
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clean_restart $binfile
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} else {
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clean_restart
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}
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if {$appear_how == "run"} {
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if ![runto_main] then {
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fail "can't run to main"
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return
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}
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} elseif {$appear_how == "attach" || $appear_how == "attach-nofile"} {
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set test_spawn_id [spawn_wait_for_attach $binfile]
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set testpid [spawn_id_get_pid $test_spawn_id]
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if {[gdb_test "attach $testpid" \
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"Attaching to .*process $testpid.*Reading symbols from.*" \
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"attach"] != 0} {
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kill_wait_spawned_process $test_spawn_id
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return
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}
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} else {
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error "unhandled '\$appear_how': $appear_how"
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}
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if {$extra_inferior} {
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gdb_test "add-inferior" "Added inferior 2*" \
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"add empty inferior 2"
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gdb_test "inferior 2" "Switching to inferior 2.*" \
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"switch to inferior 2"
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}
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if {$quit_how == "quit"} {
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# Make regexp that matches the "quit" command's output.
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proc make_re {how} {
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multi_line \
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"A debugging session is active.\[ \t\r\n\]*Inferior 1\[^\r\n\]* will be $how\." \
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"" \
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"Quit anyway\\? \\(y or n\\) $"
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}
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if {$appear_how == "run"} {
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set quit_anyway_re [make_re "killed"]
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} else {
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set quit_anyway_re [make_re "detached"]
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}
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set test "quit with \"quit\""
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gdb_test_multiple "quit" $test {
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-re $quit_anyway_re {
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send_gdb "y\n"
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gdb_test_multiple "" $test {
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eof {
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pass $test
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}
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}
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}
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}
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} elseif {$quit_how == "sighup"} {
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test_quit_with_sig HUP
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} elseif {$quit_how == "sigterm"} {
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test_quit_with_sig TERM
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} else {
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error "unhandled '\$quit_how': $quit_how"
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}
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if {$test_spawn_id != ""} {
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kill_wait_spawned_process $test_spawn_id
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}
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}
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foreach_with_prefix appear_how {"run" "attach" "attach-nofile"} {
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if {$appear_how != "run" && ![can_spawn_for_attach]} {
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continue
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}
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foreach_with_prefix extra_inferior {0 1} {
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foreach_with_prefix quit_how {"quit" "sigterm" "sighup"} {
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quit_with_live_inferior $appear_how $extra_inferior $quit_how
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}
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}
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}
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