Re: [Patch, avr] Shrink interrupt vector table down to last used entry

Senthil Kumar Selvaraj <[email protected]> Fri, 15 Feb 2013 12:18:40 +0530

Newsgroups	gmane.comp.hardware.avr.gcc
Message-ID	<[email protected]>

On Thu, Feb 14, 2013 at 10:38:11PM +0530, Weddington, Eric wrote:
> Hi All,
> 
> I open to suggestions on such a feature, but let's talk about it in AVR community first and leave the binutils mailing list out of it until we arrive at a consensus.
> 

Like the others said, the patch does not change the default behavior for
unhandled interrupts - they still branch to __bad_interrupt. The user
would  have to explicitly use the --shrink-ivt option to change that -
at which point, I guess he should be knowing what he's doing.

For what it's worth, I asked about the usefulness of this in avr freaks
a while back
(http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=128193) 
and most people thought it would be useful, provided it can be
controlled by a command line switch. This "optimization" was also
requested when Johann asked for features for the compiler.
(http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=128814
by abcminiuser).

Regards
Senthil