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# This testcase is part of GDB, the GNU debugger.
#
# Copyright 2025 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 gdbserver prints a suitable message when argument values are
# missing.
load_lib gdbserver-support.exp
standard_testfile
require allow_gdbserver_tests
set gdbserver [find_gdbserver]
if { $gdbserver == "" } {
unsupported "could not find gdbserver"
return
}
# Start gdbserver using CMD_ARGS and a non-existent program name. We
# expect to see an error message matching ERROR_RE from gdbserver.
proc test_argument_error { cmd_args error_re } {
# Fire off gdbserver. gdbserver should give an error because
# --debug-file is missing its argument.
set spawn_id [remote_spawn target "$::gdbserver $cmd_args non-existing-program"]
set saw_expected_error false
set test "check gdbserver error: $cmd_args"
expect {
-i $spawn_id
-re $error_re {
set saw_expected_error true
exp_continue
}
eof {
gdb_assert $saw_expected_error $test
wait
}
timeout {
fail "$test (timeout)"
}
}
# expect defaults to spawn_id in many places. Avoid confusing any
# following code.
unset spawn_id
}
# Check that an argument that expects a value will not use a port, or
# another argument, as its value.
foreach arg { --debug-format --debug-file } {
test_argument_error "$arg stdio" \
"Missing argument value for: $arg"
test_argument_error "$arg :54321" \
"Missing argument value for: $arg"
test_argument_error "$arg -" \
"Missing argument value for: $arg"
test_argument_error "$arg --once -" \
"Missing argument value for: $arg"
}
# Test unknown argument handling.
test_argument_error "--unknown -" \
"Unknown argument: --unknown"
test_argument_error "-unknown -" \
"Unknown argument: -unknown"
test_argument_error "--unknown=blah -" \
"Unknown argument: --unknown"
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