[avr-libc-dev] [bug #36410] avr/boot.h: poisoned SPMCR for ATmega128

[Axel Wachtler]

URL:
  <http://savannah.nongnu.org/bugs/?36410>

                 Summary: avr/boot.h: poisoned SPMCR for ATmega128
                 Project: AVR C Runtime Library
            Submitted by: awachtler
            Submitted on: So 06 Mai 2012 09:00:05 GMT
                Category: Header
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Header files
                  Status: None
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 1.8.0
           Fixed Release: None

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Details:

If avr/boot.h is just included in a source file and the file is compiled for
atmega128, the compiler raises an error.

Here are the steps to reproduce the issue:
--------------------------------------------
$ cat foo.c
#include <avr/version.h>
#include <avr/boot.h>

$ avr-gcc -c  -mmcu=atmega128 foo.c
In file included from foo.c:2:0:
/home/myavrtools/avr-gcc470/lib/gcc/avr/4.7.0/../../../../avr/include/avr/boot.h:112:16:
error: attempt to use poisoned "SPMCR"

$ avr-gcc -c  -mmcu=atmega1281 foo.c
--------------------------------------------
For atmega1281 it works with no error.

My compiler is either avr-gcc 4.5.1 or 4.7.0, both compilers use
avr-libc 1.8.0

For avr-gcc 4.3.5 with an avr-libc 1.6.8 the above example works.





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