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# This testcase is part of GDB, the GNU debugger.
# Copyright 2020-2023 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 attaching to a process, as a second inferior, through a
# gdbserver that does not support multi-process extensions.
load_lib gdbserver-support.exp
standard_testfile
require allow_gdbserver_tests
require can_spawn_for_attach
if {[build_executable "build" $testfile $srcfile {debug}] == -1} {
return -1
}
proc test {target_non_stop} {
global binfile
global gdb_prompt
save_vars { ::GDBFLAGS } {
# If GDB and GDBserver are both running locally, set the sysroot to avoid
# reading files via the remote protocol.
if { ![is_remote host] && ![is_remote target] } {
set ::GDBFLAGS "${::GDBFLAGS} -ex \"set sysroot\""
}
set ::GDBFLAGS \
"${::GDBFLAGS} -ex \"set remote multiprocess-feature-packet off\""
set ::GDBFLAGS \
"${::GDBFLAGS} -ex \"maint set target-non-stop ${target_non_stop}\""
clean_restart ${binfile}
}
# Start the first inferior.
if {![runto_main]} {
return
}
# The second inferior is an extended remote.
gdb_test "add-inferior -no-connection" "Added inferior 2.*" \
"add the second inferior"
gdb_test "inferior 2" ".*Switching to inferior 2.*" \
"switch to inferior 2"
set res [gdbserver_start "--multi" ""]
set gdbserver_gdbport [lindex $res 1]
gdb_target_cmd "extended-remote" $gdbserver_gdbport
# Start a program, then attach to it.
set spawn_id_list [spawn_wait_for_attach [list $binfile]]
set test_spawn_id [lindex $spawn_id_list 0]
set testpid [spawn_id_get_pid $test_spawn_id]
gdb_test_multiple "attach $testpid" "attach to the program via remote" {
-re "Attaching to Remote target.*\[\r\n\]+$gdb_prompt " {
pass $gdb_test_name
}
}
# Check that we have two threads. Bad GDB duplicated the
# thread coming from the remote when target-non-stop is off;
# or hanged during attach when target-non-stop is on.
gdb_test "info threads" \
[multi_line \
" Id\[^\r\n\]+" \
" 1\.1\[^\r\n\]+" \
". 2\.1\[^\r\n\]+"
]
# Clean the spawned process and gdbserver.
gdbserver_exit 0
kill_wait_spawned_process $test_spawn_id
}
foreach_with_prefix target_non_stop {off on} {
test $target_non_stop
}
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