Re: question about interrupt attribute

["William A. Gatliff" <bgat at billgatliff dot com>]

David:


Check the machine code coming out for MyIRQHandler, I bet you find
that it isn't coded as an interrupt handler because that attribute
isn't supported for a lot of versions/targets of gcc.  That's what the
warning means.

You're better off coding an irq "stub" around MyIRQHandler, written in
assembly language.  I can post examples if you want to go that route.
It isn't hard, and it eliminates dependence on the interrupt
attribute.


b.g.



On Fri, Feb 14, 2003 at 11:59:30AM -0700, David Jea wrote:
> I am using arm-elf-gcc to compile sample code,
> and got following message.
> warning: 'interrupt' attribute directive ignored.
> 
> in code,
> void MyIRQHandler(void) __attribute__ ((interrupt("IRQ")));
> 
> Why there is a warning message,
> I built arm-elf-gcc from gcc-2.95.3 and newlib-1.9.0 according to the
> billgatiff.com.
> 
> 
> Thank you.
> 
> 
> David Jea
> 
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-- 
Bill Gatliff
Professional embedded GNU training.
http://billgatliff.com

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