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# Copyright 2021-2023 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 doing a "run" or an "attach" while the program is running.
#
# We test a non-threaded and a threaded configuration, so that targets
# that don't support threads get some testing, but we also test with
# threads when possible in case that triggers some
# multi-thread-specific bugs.
standard_testfile
set binfile_threads ${binfile}-threads
set binfile_nothreads ${binfile}-nothreads
unset binfile
# Valid parameter / axis values:
#
# - non-stop: "off" of "on"
# - threaded: 0 or 1
# - run-or-attach: "run" or "attach"
proc_with_prefix test { non-stop threaded run-or-attach } {
global gdb_prompt
if { ${run-or-attach} == "attach" && ![can_spawn_for_attach] } {
unsupported "attach not supported"
return
}
save_vars ::GDBFLAGS {
set ::GDBFLAGS "$::GDBFLAGS -ex \"set non-stop ${non-stop}\""
# The test doesn't work when the remote target uses the
# synchronous remote protocol, because GDB can't kill the
# remote inferior while it is running, when we "run" or
# "attach" again. When aswering "yes" to the "Start it from
# the beginning?" question, we otherwise get:
#
# Cannot execute this command while the target is running. Use the
# "interrupt" command to stop the target and then try again.
#
# Interrupting the target would defeat the purpose of the
# test. So when non-stop is off and using the remote target,
# force the target to use the async / non-stop version of the
# protocol.
if { [target_info exists gdb_protocol] && ${non-stop} == "off" } {
set ::GDBFLAGS "$::GDBFLAGS -ex \"maint set target-non-stop on\""
}
clean_restart $::binfile
}
if { ![runto_main] } {
return
}
gdb_breakpoint "all_started" "temporary"
gdb_continue_to_breakpoint "continue to all_started"
# If all-stop, everything stopped when we hit the all_started
# breakpoint, so resume execution in background. If running the
# non-threaded version, our only thread is stopped in any case, so
# resume as well. But if we are in non-stop with two threads, we
# have one running and one stopped, leave it like this, it makes
# an interesting test case.
if { ${non-stop} == "off" || !${threaded} } {
gdb_test "continue &" "Continuing."
}
gdb_test_no_output "set confirm off"
# Run again (or, connect to a new stub if using a stub), take
# advantage of the fact that runto_main leaves the breakpoint on
# main in place.
if { ${run-or-attach} == "run" } {
gdb_run_cmd
gdb_test "" "Breakpoint $::decimal, .*main.*" "hit main breakpoint after re-run"
} elseif { ${run-or-attach} == "attach" } {
set test_spawn_id [spawn_wait_for_attach $::binfile]
set test_pid [spawn_id_get_pid $test_spawn_id]
gdb_test_multiple "attach $test_pid" "attach to process" {
-re "Attaching to program: .*$gdb_prompt " {
pass $gdb_test_name
}
}
gdb_exit
kill_wait_spawned_process $test_spawn_id
} else {
error "Invalid value for run-or-attach"
}
}
foreach_with_prefix threaded {0 1} {
set options [list debug additional_flags=-DWITH_THREADS=$threaded \
additional_flags=-std=gnu99]
if { $threaded } {
set binfile $binfile_threads
lappend options pthreads
} else {
set binfile $binfile_nothreads
}
if { [build_executable "failed to prepare" ${binfile} ${srcfile} $options] } {
continue
}
foreach_with_prefix run-or-attach {run attach} {
foreach_with_prefix non-stop {off on} {
test ${non-stop} ${threaded} ${run-or-attach}
}
}
}
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