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Re: [PATCH] Make target_waitstatus_to_string return an std::string


On 08/12/2017 09:30 AM, Simon Marchi wrote:


> --- a/gdb/record-btrace.c
> +++ b/gdb/record-btrace.c
> @@ -2477,8 +2477,10 @@ record_btrace_wait (struct target_ops *ops, ptid_t ptid,
>      {
>        *status = btrace_step_no_resumed ();
>  
> +      std::string statstr = target_waitstatus_to_string (status);
> +
>        DEBUG ("wait ended by %s: %s", target_pid_to_str (null_ptid),
> -	     target_waitstatus_to_string (status));
> +	     statstr.c_str ());

I think:

        DEBUG ("wait ended by %s: %s", target_pid_to_str (null_ptid),
 	     target_waitstatus_to_string (status).c_str ());

would be better, to avoid heap-allocating the string if
debugging is not active.

> @@ -2567,10 +2569,12 @@ record_btrace_wait (struct target_ops *ops, ptid_t ptid,
>    /* We moved the replay position but did not update registers.  */
>    registers_changed_ptid (eventing->ptid);
>  
> +  std::string statstr = target_waitstatus_to_string (status);
> +
>    DEBUG ("wait ended by thread %s (%s): %s",
>  	 print_thread_id (eventing),
>  	 target_pid_to_str (eventing->ptid),
> -	 target_waitstatus_to_string (status));
> +	 statstr.c_str ());

Ditto.

Otherwise looks fine to me.

Thanks,
Pedro Alves


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