[RFA] let record_resume fail immediately on error

[Hui Zhu]

>> Now we have a lot of patch in running.
>> Could you please help me review this patch first?
>
> OK, could you help me understand it?
>
> You have an error-handler routine called do_record_message,
> which calls record_message by way of catch_errors.  You call
> do_record_message from two places, record_wait and record_resume.
>
> But now you want to bypass the error-handler routine when
> you call record_message from record_resume, but keep it in
> place for record_wait.  Now you have two different ways of
> calling record_message.  Seems inconsistant.  No explanation,
> no comments explaining the difference.
>

OK.  I will try to talk clear about it.

I make do_record_message because in before, call a error in
record_resume and record_wait will make inferior cannot keep running.

Now, I found that call error in record_resume will not affect
anything.  So I change do_record_message to record_message in
record_resume.

But in record_wait, call error still make inferior cannot keep
running, so I keep do_record_message.

Thanks,
Hui


>
>
>> 2009-11-03  Hui Zhu  <teawater@gmail.com>
>>
>>        * record.c (record_resume_error): Deleted.
>>        (record_resume): Call record_message.
>>        (record_wait): Deleted record_resume_error.
>>        Set status when do_record_message need stop the inferior.
>>
>> ---
>>  record.c |   29 ++++++++++-------------------
>>  1 file changed, 10 insertions(+), 19 deletions(-)
>>
>> --- a/record.c
>> +++ b/record.c
>> @@ -954,7 +954,6 @@ record_close (int quitting)
>>  }
>>
>>  static int record_resume_step = 0;
>> -static int record_resume_error;
>>
>>  /* "to_resume" target method.  Resume the process record target.  */
>>
>> @@ -966,15 +965,11 @@ record_resume (struct target_ops *ops, p
>>
>>   if (!RECORD_IS_REPLAY)
>>     {
>> -      if (do_record_message (get_current_regcache (), signal))
>> -        {
>> -          record_resume_error = 0;
>> -        }
>> -      else
>> -        {
>> -          record_resume_error = 1;
>> -          return;
>> -        }
>> +      struct record_message_args args;
>> +
>> +      args.regcache = get_current_regcache ();
>> +      args.signal = signal;
>> +      record_message (&args);
>>       record_beneath_to_resume (record_beneath_to_resume_ops, ptid, 1,
>>                                 signal);
>>     }
>> @@ -1038,14 +1033,6 @@ record_wait (struct target_ops *ops,
>>
>>   if (!RECORD_IS_REPLAY && ops != &record_core_ops)
>>     {
>> -      if (record_resume_error)
>> -       {
>> -         /* If record_resume get error, return directly.  */
>> -         status->kind = TARGET_WAITKIND_STOPPED;
>> -         status->value.sig = TARGET_SIGNAL_ABRT;
>> -         return inferior_ptid;
>> -       }
>> -
>>       if (record_resume_step)
>>        {
>>          /* This is a single step.  */
>> @@ -1091,7 +1078,11 @@ record_wait (struct target_ops *ops,
>>                         Therefore we will not return to gdb.
>>                         Record the insn and resume.  */
>>                      if (!do_record_message (regcache, TARGET_SIGNAL_0))
>> -                       break;
>> +                       {
>> +                           status->kind = TARGET_WAITKIND_STOPPED;
>> +                           status->value.sig = TARGET_SIGNAL_0;
>> +                           break;
>> +                       }
>>
>>                      record_beneath_to_resume
>> (record_beneath_to_resume_ops,
>>                                                ptid, 1,
>
>