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Re: [avr-gcc-list] naked attribute for main() function
From: |
Dmitry K. |
Subject: |
Re: [avr-gcc-list] naked attribute for main() function |
Date: |
Sat, 22 Dec 2007 15:23:43 +1000 |
User-agent: |
KMail/1.5 |
On Saturday 22 December 2007 02:35, Eric Pasquier wrote:
> Hi All,
>
> I am using avr-gcc version 4.1.2 (WinAVR 20070525).
>
> I noticed that the compiler is saving a few registers in the main()
> function, so I used the "naked" attribute.
>
> Does anybody know if this may cause a problem ?
Yes, the 'naked' attribute can destroy a program.
If shortly, use it only for completely-asm functions.
Try the 'noreturn' attribute. I can't check this
for patched avr-gcc, but in case of pure avr-gcc and
a common (no main) function the result is fine.
Regards,
Dmitry.