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# Copyright 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/>.
# Test detaching while the inferior is running. Basically:
#
# (gdb) attach PID
# (gdb) c&
# (gdb) detach
require can_spawn_for_attach
standard_testfile
if {[build_executable "failed to prepare" $testfile $srcfile {debug}] == -1} {
return
}
# The test proper. See description above.
proc test {} {
global binfile gdb_prompt
# This test requires executing commands while the target is
# running, which, when testing with the remote target, requires
# non-stop remote protocol. Until that variant of the RSP is the
# default, force target non-stop mode on.
set is_remote \
[expr {[target_info exists gdb_protocol] \
&& ([target_info gdb_protocol] == "remote" \
|| [target_info gdb_protocol] == "extended-remote")}]
save_vars { ::GDBFLAGS } {
if {$is_remote} {
append ::GDBFLAGS " -ex \"maint set target-non-stop on\""
}
clean_restart ${binfile}
}
set test_spawn_id [spawn_wait_for_attach $binfile]
set testpid [spawn_id_get_pid $test_spawn_id]
set any "\[^\r\n\]*"
# Iterate more than once so that we test re-attaching after
# detaching, in case GDB incorrectly detaches and the process
# crashes after the detach.
set n_iters 2
for {set iter 1} {$iter <= $n_iters} {incr iter} {
with_test_prefix "iter=$iter" {
set attached 0
gdb_test_multiple "attach $testpid" "attach" {
-re "Attaching to program:${any}process $testpid\r\n.*$gdb_prompt " {
pass $gdb_test_name
set attached 1
}
}
if {!$attached} {
break
}
gdb_test_multiple "continue &" "" {
-re "Continuing\.\r\n$::gdb_prompt " {
pass $gdb_test_name
}
}
gdb_test "detach" "Detaching from.*"
# Sleep a bit before reattaching to let the detached
# process crash and exit if e.g., GDB managed to leave
# breakpoint traps behind.
if {$iter != $n_iters} {
sleep 1
}
}
}
kill_wait_spawned_process $test_spawn_id
}
test
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