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Re: [avr-libc-dev] realloc shrinking corrupts last two bytes of shrunk c
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From: |
Francesco Potortì |
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Subject: |
Re: [avr-libc-dev] realloc shrinking corrupts last two bytes of shrunk chunk |
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Date: |
Tue, 03 Dec 2013 11:58:09 +0100 |
Francesco Potortì:
>> I just realized that my previous bug report may be obsolete. I checked
>> and see that I have libc 1.6.7 installed, but in the change log for
>> 1.7.0 I read:
>>
>> [#27242] realloc: serious error when size shrinks
>>
>> I will upgrade and try again.
Joerg Wunsch:
>There is also:
>
>https://savannah.nongnu.org/bugs/?32702
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>which is not yet fixed.
It seems the second one is a different issue. Anyway, I realised that
in fact the Arduino environment, while being shipped with avr-libc 1.6,
includes malloc.c and realloc.c from 1.8.0. They are compoiled and
linked by default when using the Arduino IDE, but I use a different
environment and I had missed those. Once I use realloc from 1.8.0 the
problem disappears.
Sorry for reporting a bug from an obsolete version.