bugAVR C Runtime Library - Bugs: bug #35467, Arduino project built with...

 
 

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bug #35467: Arduino project built with AVR_8_bit_GNU_Toolchain_3.3.1_422 does not work

Submitter:  David DeHaven <dehaveda>
Submitted:  Tue 07 Feb 2012 03:50:13 PM UTC
   
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Unknown
Status:  Invalid Assigned to:  None
Percent Complete:  0% Open/Closed:  Closed
Release:  Unknown Fixed Release:  None

Tue 07 Feb 2012 03:57:51 PM UTC, comment #1: 

Sorry, no, this is not the right place to post this.

These are bug trackers for the AVR C library, but apparently,
you are running into a compiler problem, or a problem with the
code you are compiling.  Just the fact that the code used to
work as expected with one compiler version but fails with
another one is not a sufficient proof for a compiler failure.

You should figure out (e.g. by comparing the generated
assembly code) what the actual problem is.  If you narrowed
it down, and are convinced it's a compiler bug, you should
contact your toolchain vendor (Atmel) through their support
channel about it.

When seeing GCC version 4.5.1, GCC bug #46779 immediately
comes to mind:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46779

You might ask your vendor about whether your toolchain version
has this bug already fixed or not.

Joerg Wunsch <joerg_wunsch>
Group administrator
Tue 07 Feb 2012 03:50:13 PM UTC, original submission:  


OLD: gcc version 4.3.3 (WinAVR 20100110)
NEW: gcc version 4.5.1 (AVR_8_bit_GNU_Toolchain_3.3.1_422)

I am building an Arduino project that uses the Ethernet Shield. w5100.cpp is giving me trouble. Building w5100 with the OLD version works. Building w5100 with the NEW version does not work. It builds OK with both. By work I am referring to the runtime interaction with the W5100 chip on the Ethernet shield.

I can build all files except w5100.cpp with the NEW version, but w5100.cpp has to be built with the OLD version to make it work.

David DeHaven <dehaveda>

 

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2012-02-08 joerg_wunsch SummaryNot sure this the right plce to submit this but... Arduino project built with AVR_8_bit_GNU_Toolchain_3.3.1_422 does not work
    2012-02-07 joerg_wunsch StatusNone Invalid
        Open/ClosedOpen Closed
    2012-02-07 dehaveda Carbon-Copy- Added -email is unavailable-

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