Re: [avr-gcc-list] Avr-gcc Produces Incorrect Code with -Os

[Anatoly Sokolov]

Hi.

> An alternative way to handle this sort of thing would be to implement a 
> "critical" function attribute like in the msp430 port of gcc - a 
> function with this attribute has interrupts disabled at the start, and 
> restored at the end.  

  It will work for for tiny and mega devices, but xmega devices have 
Non-Maskable Interrupts, and clearing of the I-bit does not guarantee 
full continuity execution of a code.

 I shall make a patch for "critical" attribute.

Anatoly.