Re: [PATCH] MI: new timing command

[Daniel Jacobowitz <drow at false dot org>]

On Sun, Dec 31, 2006 at 06:13:50PM +1300, Nick Roberts wrote:
>  > The autoconf manual has information about this sort of thing.  I see
>  > that libiberty guards it, sometimes with HAVE_GETRUSAGE and other times
>  > with that and HAVE_SYS_RESOURCE_H.
>  > 
>  > Will libiberty's get_run_time suffice for whatever you were doing,
>  > Nick?
> 
> The manual says:
> 
>  -- Replacement: long get_run_time (void)
>      Returns the time used so far, in microseconds.  If possible, this
>      is the time used by this process, else it is the elapsed time
>      since the process started.
> 
> Without looking at the code, I would guess it's just a wrapper for getrusage
> and it uses something like gettimeofday for elapsed time when it can't find
> it.  I think if user time isn't available it's best just to make
> -enable-timings fail, so I'll use Eli's suggestion.

In that case you can copy the necessary guards from that file. 
However, it does more than just getrusage - it also supports
platforms with times() but without getrusage, which IIRC includes
Windows, so it might be better to use it.

I was wondering if we should make this a normal GDB setting, and use5C
"-gdb-set mi profiling on" to enable it.  There's already a maint
setting to do the same thing for the CLI.

-- 
Daniel Jacobowitz
CodeSourcery