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Re: [avr-libc-dev] New release?


From: David Brown
Subject: Re: [avr-libc-dev] New release?
Date: Thu, 29 Nov 2007 16:23:50 +0100
User-agent: Thunderbird 2.0.0.9 (Windows/20071031)

Weddington, Eric wrote:

Simultaneously quality of a code concedes not only to
branches 3.3 and 3.4, but even concedes to a branch 4.1.
For example, Avr-libc's sscanf("1.2345","%e",&x) takes
3886 bytes of flash and 140 bytes of stack with 4.2.2.
Above branch (4.1.2) uses only 3802 bytes of flash and
128 bytes of stack.

This is a much more important issue. I haven't tested 4.2 for the avr, or done serious comparisons with older versions. Is there anything specific behind this problem?


It's a bit late to be discussing these issues, or reworded: I wish that
discussions like this were done a lot earlier.

I'm planning on release WinAVR with GCC 4.2.2. The most major issue that
I see right now is GCC bug #29524
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29524>
I would like to see a patch for this (even if it is not perfect but
works) sometime next week.


If that's the only sort of code quality issue remaining for 4.2, then the picture is not nearly as bleak as Dmitry's post suggested.

mvh.,

David





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