[PATCH v2] gdb: don't pass TARGET_WNOHANG to targets that can't async (PR 26642)

[Pedro Alves]

On 10/13/20 4:31 PM, Simon Marchi via Gdb-patches wrote:

>> +standard_testfile
>> +
>> +save_vars { GDBFLAGS } {
>> +    # Enable target-async off this way, because with board
>> +    # native-extended-gdbserver, the remote target is already open when
>> +    # returning from prepare_for_testing, and that would be too late to toggle
>> +    # it.
>> +    append GDBFLAGS { -ex "maintenance set target-async off" }
>> +
>> +    if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
>> +	return
>> +    }
>> +
>> +    # Make sure our command-line flag worked.
>> +    gdb_test "maintenance show target-async" "Controlling the inferior in asynchronous mode is off\\."
>> +
>> +    if { ![runto_main] } {
>> +	fail "can't run to main"
>> +	return
>> +    }
>> +
>> +    gdb_continue_to_end
>> +}

Note the save_vars scope only needs to be around prepare_for_testing.

Anyway, LGTM.