RE: using the interrupt attribute

[David Korn <dkorn at pixelpower dot com>]

>-----Original Message-----
>From: Richard Slaughter [mailto:rslaughter@anatel.com]
>Sent: 19 October 2001 14:56

>I'm using the arm-elf-gcc compiler version 2.95.2-6 under cygwin for the
>atmel arm processor at91fr40807.
>Should the following function compile?
>Can anyone point me to an example of how to use this option?
>
>Class foo
>{
>public:
>static f(void) __attribute__ ((interrupt("IRQ")));
>
>}

  Nothing in the documentation for 2.95.2/3 suggests that this attribute
exists for ARM targets , although I know there are some patches out there
that add it.  I don't know if one of the cygwin modifications was to
include that option: it might be in the GNUpro variant only.  Anyway, at a
guess, I'd say 'get rid of that "IRQ" string and the brackets enclosing it
and just try'

static f(void) __attribute__ ((interrupt));

>also does the
>#pragma interrupt
>#pragma nointerrupt
> and  work?


  What #pragma interrupt?  On the whole, gcc doesn't use #pragma.

       DaveK
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