On 11/18/19 10:19 AM, Damien Hedde wrote:
>
>
> On 11/18/19 8:41 AM, Richard Henderson wrote:
>> On 11/15/19 6:29 PM, Alex Bennée wrote:
>>>
>>> static GDBState *gdbserver_state;
>>>
>>> +static GDBState *gdb_allocate_state(void)
>>> +{
>>> + g_assert(!gdbserver_state);
>>> + gdbserver_state = g_new0(GDBState, 1);
>>> + return gdbserver_state;
>>> +}
>>> +
>>
>> Actually, if we're only going to have one, why are we allocating it
>> dynamically? We might as well allocate it statically and drop the pointer
>> indirection.
>
> In use_gdb_syscalls(), we check if gdbserver_state is NULL:
> | /* -semihosting-config target=auto */
> | /* On the first call check if gdb is connected and remember. */
> | if (gdb_syscall_mode == GDB_SYS_UNKNOWN) {
> | gdb_syscall_mode = (gdbserver_state ? GDB_SYS_ENABLED
> | : GDB_SYS_DISABLED);
> | }
>
> So we cannot drop the pointer or we have to add some flag to do this test.
True, but perhaps a bool gdbserver_state.in_use is a clearer way to do this?
r~
